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/* * uCharts (R) * 高性能跨平台图表库,支持H5、APP、小程序(微信/支付宝/百度/头条/QQ/360/快手)、Vue、Taro等支持canvas的框架平台 * Copyright (C) 2018-2022 QIUN (R) 秋云 https://www.ucharts.cn All rights reserved.
* Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
* 复制使用请保留本段注释,感谢支持开源! * * uCharts (R) 官方网站 * https://www.uCharts.cn
* * 开源地址: * https://gitee.com/uCharts/uCharts
* * uni-app插件市场地址: * http://ext.dcloud.net.cn/plugin?id=271
* */
'use strict';
var config = { version: 'v2.5.0-20230101', yAxisWidth: 15, xAxisHeight: 22, padding: [10, 10, 10, 10], rotate: false, fontSize: 13, fontColor: '#666666', dataPointShape: ['circle', 'circle', 'circle', 'circle'], color: ['#1890FF', '#91CB74', '#FAC858', '#EE6666', '#73C0DE', '#3CA272', '#FC8452', '#9A60B4', '#ea7ccc'], linearColor: ['#0EE2F8', '#2BDCA8', '#FA7D8D', '#EB88E2', '#2AE3A0', '#0EE2F8', '#EB88E2', '#6773E3', '#F78A85'], pieChartLinePadding: 15, pieChartTextPadding: 5, titleFontSize: 20, subtitleFontSize: 15, radarLabelTextMargin: 13, };
var assign = function(target, ...varArgs) { if (target == null) { throw new TypeError('[uCharts] Cannot convert undefined or null to object'); } if (!varArgs || varArgs.length <= 0) { return target; } // 深度合并对象
function deepAssign(obj1, obj2) { for (let key in obj2) { obj1[key] = obj1[key] && obj1[key].toString() === "[object Object]" ? deepAssign(obj1[key], obj2[key]) : obj1[key] = obj2[key]; } return obj1; } varArgs.forEach(val => { target = deepAssign(target, val); }); return target; };
var util = { toFixed: function toFixed(num, limit) { limit = limit || 2; if (this.isFloat(num)) { num = num.toFixed(limit); } return num; }, isFloat: function isFloat(num) { return num % 1 !== 0; }, approximatelyEqual: function approximatelyEqual(num1, num2) { return Math.abs(num1 - num2) < 1e-10; }, isSameSign: function isSameSign(num1, num2) { return Math.abs(num1) === num1 && Math.abs(num2) === num2 || Math.abs(num1) !== num1 && Math.abs(num2) !== num2; }, isSameXCoordinateArea: function isSameXCoordinateArea(p1, p2) { return this.isSameSign(p1.x, p2.x); }, isCollision: function isCollision(obj1, obj2) { obj1.end = {}; obj1.end.x = obj1.start.x + obj1.width; obj1.end.y = obj1.start.y - obj1.height; obj2.end = {}; obj2.end.x = obj2.start.x + obj2.width; obj2.end.y = obj2.start.y - obj2.height; var flag = obj2.start.x > obj1.end.x || obj2.end.x < obj1.start.x || obj2.end.y > obj1.start.y || obj2.start.y < obj1.end.y; return !flag; } };
//兼容H5点击事件
function getH5Offset(e) { e.mp = { changedTouches: [] }; e.mp.changedTouches.push({ x: e.offsetX, y: e.offsetY }); return e; }
// hex 转 rgba
function hexToRgb(hexValue, opc) { var rgx = /^#?([a-f\d])([a-f\d])([a-f\d])$/i; var hex = hexValue.replace(rgx, function(m, r, g, b) { return r + r + g + g + b + b; }); var rgb = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex); var r = parseInt(rgb[1], 16); var g = parseInt(rgb[2], 16); var b = parseInt(rgb[3], 16); return 'rgba(' + r + ',' + g + ',' + b + ',' + opc + ')'; }
function findRange(num, type, limit) { if (isNaN(num)) { throw new Error('[uCharts] series数据需为Number格式'); } limit = limit || 10; type = type ? type : 'upper'; var multiple = 1; while (limit < 1) { limit *= 10; multiple *= 10; } if (type === 'upper') { num = Math.ceil(num * multiple); } else { num = Math.floor(num * multiple); } while (num % limit !== 0) { if (type === 'upper') { if (num == num + 1) { //修复数据值过大num++无效的bug by 向日葵 @xrk_jy
break; } num++; } else { num--; } } return num / multiple; }
function calCandleMA(dayArr, nameArr, colorArr, kdata) { let seriesTemp = []; for (let k = 0; k < dayArr.length; k++) { let seriesItem = { data: [], name: nameArr[k], color: colorArr[k] }; for (let i = 0, len = kdata.length; i < len; i++) { if (i < dayArr[k]) { seriesItem.data.push(null); continue; } let sum = 0; for (let j = 0; j < dayArr[k]; j++) { sum += kdata[i - j][1]; } seriesItem.data.push(+(sum / dayArr[k]).toFixed(3)); } seriesTemp.push(seriesItem); } return seriesTemp; }
function calValidDistance(self, distance, chartData, config, opts) { var dataChartAreaWidth = opts.width - opts.area[1] - opts.area[3]; var dataChartWidth = chartData.eachSpacing * (opts.chartData.xAxisData.xAxisPoints.length - 1); if(opts.type == 'mount' && opts.extra && opts.extra.mount && opts.extra.mount.widthRatio && opts.extra.mount.widthRatio > 1){ if(opts.extra.mount.widthRatio>2) opts.extra.mount.widthRatio = 2 dataChartWidth += (opts.extra.mount.widthRatio - 1)*chartData.eachSpacing; } var validDistance = distance; if (distance >= 0) { validDistance = 0; self.uevent.trigger('scrollLeft'); self.scrollOption.position = 'left' opts.xAxis.scrollPosition = 'left'; } else if (Math.abs(distance) >= dataChartWidth - dataChartAreaWidth) { validDistance = dataChartAreaWidth - dataChartWidth; self.uevent.trigger('scrollRight'); self.scrollOption.position = 'right' opts.xAxis.scrollPosition = 'right'; } else { self.scrollOption.position = distance opts.xAxis.scrollPosition = distance; } return validDistance; }
function isInAngleRange(angle, startAngle, endAngle) { function adjust(angle) { while (angle < 0) { angle += 2 * Math.PI; } while (angle > 2 * Math.PI) { angle -= 2 * Math.PI; } return angle; } angle = adjust(angle); startAngle = adjust(startAngle); endAngle = adjust(endAngle); if (startAngle > endAngle) { endAngle += 2 * Math.PI; if (angle < startAngle) { angle += 2 * Math.PI; } } return angle >= startAngle && angle <= endAngle; }
function createCurveControlPoints(points, i) { function isNotMiddlePoint(points, i) { if (points[i - 1] && points[i + 1]) { return points[i].y >= Math.max(points[i - 1].y, points[i + 1].y) || points[i].y <= Math.min(points[i - 1].y, points[i + 1].y); } else { return false; } } function isNotMiddlePointX(points, i) { if (points[i - 1] && points[i + 1]) { return points[i].x >= Math.max(points[i - 1].x, points[i + 1].x) || points[i].x <= Math.min(points[i - 1].x, points[i + 1].x); } else { return false; } } var a = 0.2; var b = 0.2; var pAx = null; var pAy = null; var pBx = null; var pBy = null; if (i < 1) { pAx = points[0].x + (points[1].x - points[0].x) * a; pAy = points[0].y + (points[1].y - points[0].y) * a; } else { pAx = points[i].x + (points[i + 1].x - points[i - 1].x) * a; pAy = points[i].y + (points[i + 1].y - points[i - 1].y) * a; }
if (i > points.length - 3) { var last = points.length - 1; pBx = points[last].x - (points[last].x - points[last - 1].x) * b; pBy = points[last].y - (points[last].y - points[last - 1].y) * b; } else { pBx = points[i + 1].x - (points[i + 2].x - points[i].x) * b; pBy = points[i + 1].y - (points[i + 2].y - points[i].y) * b; } if (isNotMiddlePoint(points, i + 1)) { pBy = points[i + 1].y; } if (isNotMiddlePoint(points, i)) { pAy = points[i].y; } if (isNotMiddlePointX(points, i + 1)) { pBx = points[i + 1].x; } if (isNotMiddlePointX(points, i)) { pAx = points[i].x; } if (pAy >= Math.max(points[i].y, points[i + 1].y) || pAy <= Math.min(points[i].y, points[i + 1].y)) { pAy = points[i].y; } if (pBy >= Math.max(points[i].y, points[i + 1].y) || pBy <= Math.min(points[i].y, points[i + 1].y)) { pBy = points[i + 1].y; } if (pAx >= Math.max(points[i].x, points[i + 1].x) || pAx <= Math.min(points[i].x, points[i + 1].x)) { pAx = points[i].x; } if (pBx >= Math.max(points[i].x, points[i + 1].x) || pBx <= Math.min(points[i].x, points[i + 1].x)) { pBx = points[i + 1].x; } return { ctrA: { x: pAx, y: pAy }, ctrB: { x: pBx, y: pBy } }; }
function convertCoordinateOrigin(x, y, center) { return { x: center.x + x, y: center.y - y }; }
function avoidCollision(obj, target) { if (target) { // is collision test
while (util.isCollision(obj, target)) { if (obj.start.x > 0) { obj.start.y--; } else if (obj.start.x < 0) { obj.start.y++; } else { if (obj.start.y > 0) { obj.start.y++; } else { obj.start.y--; } } } } return obj; }
function fixPieSeries(series, opts, config){ let pieSeriesArr = []; if(series.length>0 && series[0].data.constructor.toString().indexOf('Array') > -1){ opts._pieSeries_ = series; let oldseries = series[0].data; for (var i = 0; i < oldseries.length; i++) { oldseries[i].formatter = series[0].formatter; oldseries[i].data = oldseries[i].value; pieSeriesArr.push(oldseries[i]); } opts.series = pieSeriesArr; }else{ pieSeriesArr = series; } return pieSeriesArr; }
function fillSeries(series, opts, config) { var index = 0; for (var i = 0; i < series.length; i++) { let item = series[i]; if (!item.color) { item.color = config.color[index]; index = (index + 1) % config.color.length; } if (!item.linearIndex) { item.linearIndex = i; } if (!item.index) { item.index = 0; } if (!item.type) { item.type = opts.type; } if (typeof item.show == "undefined") { item.show = true; } if (!item.type) { item.type = opts.type; } if (!item.pointShape) { item.pointShape = "circle"; } if (!item.legendShape) { switch (item.type) { case 'line': item.legendShape = "line"; break; case 'column': case 'bar': item.legendShape = "rect"; break; case 'area': case 'mount': item.legendShape = "triangle"; break; default: item.legendShape = "circle"; } } } return series; }
function fillCustomColor(linearType, customColor, series, config) { var newcolor = customColor || []; if (linearType == 'custom' && newcolor.length == 0 ) { newcolor = config.linearColor; } if (linearType == 'custom' && newcolor.length < series.length) { let chazhi = series.length - newcolor.length; for (var i = 0; i < chazhi; i++) { newcolor.push(config.linearColor[(i + 1) % config.linearColor.length]); } } return newcolor; }
function getDataRange(minData, maxData) { var limit = 0; var range = maxData - minData; if (range >= 10000) { limit = 1000; } else if (range >= 1000) { limit = 100; } else if (range >= 100) { limit = 10; } else if (range >= 10) { limit = 5; } else if (range >= 1) { limit = 1; } else if (range >= 0.1) { limit = 0.1; } else if (range >= 0.01) { limit = 0.01; } else if (range >= 0.001) { limit = 0.001; } else if (range >= 0.0001) { limit = 0.0001; } else if (range >= 0.00001) { limit = 0.00001; } else { limit = 0.000001; } return { minRange: findRange(minData, 'lower', limit), maxRange: findRange(maxData, 'upper', limit) }; }
function measureText(text, fontSize, context) { var width = 0; text = String(text); // #ifdef MP-ALIPAY || MP-BAIDU || APP-NVUE
context = false; // #endif
if (context !== false && context !== undefined && context.setFontSize && context.measureText) { context.setFontSize(fontSize); return context.measureText(text).width; } else { var text = text.split(''); for (let i = 0; i < text.length; i++) { let item = text[i]; if (/[a-zA-Z]/.test(item)) { width += 7; } else if (/[0-9]/.test(item)) { width += 5.5; } else if (/\./.test(item)) { width += 2.7; } else if (/-/.test(item)) { width += 3.25; } else if (/:/.test(item)) { width += 2.5; } else if (/[\u4e00-\u9fa5]/.test(item)) { width += 10; } else if (/\(|\)/.test(item)) { width += 3.73; } else if (/\s/.test(item)) { width += 2.5; } else if (/%/.test(item)) { width += 8; } else { width += 10; } } return width * fontSize / 10; } }
function dataCombine(series) { return series.reduce(function(a, b) { return (a.data ? a.data : a).concat(b.data); }, []); }
function dataCombineStack(series, len) { var sum = new Array(len); for (var j = 0; j < sum.length; j++) { sum[j] = 0; } for (var i = 0; i < series.length; i++) { for (var j = 0; j < sum.length; j++) { sum[j] += series[i].data[j]; } } return series.reduce(function(a, b) { return (a.data ? a.data : a).concat(b.data).concat(sum); }, []); }
function getTouches(touches, opts, e) { let x, y; if (touches.clientX) { if (opts.rotate) { y = opts.height - touches.clientX * opts.pix; x = (touches.pageY - e.currentTarget.offsetTop - (opts.height / opts.pix / 2) * (opts.pix - 1)) * opts.pix; } else { x = touches.clientX * opts.pix; y = (touches.pageY - e.currentTarget.offsetTop - (opts.height / opts.pix / 2) * (opts.pix - 1)) * opts.pix; } } else { if (opts.rotate) { y = opts.height - touches.x * opts.pix; x = touches.y * opts.pix; } else { x = touches.x * opts.pix; y = touches.y * opts.pix; } } return { x: x, y: y } }
function getSeriesDataItem(series, index, group) { var data = []; var newSeries = []; var indexIsArr = index.constructor.toString().indexOf('Array') > -1; if(indexIsArr){ let tempSeries = filterSeries(series); for (var i = 0; i < group.length; i++) { newSeries.push(tempSeries[group[i]]); } }else{ newSeries = series; }; for (let i = 0; i < newSeries.length; i++) { let item = newSeries[i]; let tmpindex = -1; if(indexIsArr){ tmpindex = index[i]; }else{ tmpindex = index; } if (item.data[tmpindex] !== null && typeof item.data[tmpindex] !== 'undefined' && item.show) { let seriesItem = {}; seriesItem.color = item.color; seriesItem.type = item.type; seriesItem.style = item.style; seriesItem.pointShape = item.pointShape; seriesItem.disableLegend = item.disableLegend; seriesItem.legendShape = item.legendShape; seriesItem.name = item.name; seriesItem.show = item.show; seriesItem.data = item.formatter ? item.formatter(item.data[tmpindex]) : item.data[tmpindex]; data.push(seriesItem); } } return data; }
function getMaxTextListLength(list, fontSize, context) { var lengthList = list.map(function(item) { return measureText(item, fontSize, context); }); return Math.max.apply(null, lengthList); }
function getRadarCoordinateSeries(length) { var eachAngle = 2 * Math.PI / length; var CoordinateSeries = []; for (var i = 0; i < length; i++) { CoordinateSeries.push(eachAngle * i); } return CoordinateSeries.map(function(item) { return -1 * item + Math.PI / 2; }); }
function getToolTipData(seriesData, opts, index, group, categories) { var option = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : {}; var calPoints = opts.chartData.calPoints?opts.chartData.calPoints:[]; let points = {}; if(group.length > 0){ let filterPoints = []; for (let i = 0; i < group.length; i++) { filterPoints.push(calPoints[group[i]]) } points = filterPoints[0][index[0]]; }else{ for (let i = 0; i < calPoints.length; i++) { if(calPoints[i][index]){ points = calPoints[i][index]; break; } } }; var textList = seriesData.map(function(item) { let titleText = null; if (opts.categories && opts.categories.length>0) { titleText = categories[index]; }; return { text: option.formatter ? option.formatter(item, titleText, index, opts) : item.name + ': ' + item.data, color: item.color, legendShape: opts.extra.tooltip.legendShape == 'auto'? item.legendShape : opts.extra.tooltip.legendShape }; }); var offset = { x: Math.round(points.x), y: Math.round(points.y) }; return { textList: textList, offset: offset }; }
function getMixToolTipData(seriesData, opts, index, categories) { var option = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : {}; var points = opts.chartData.xAxisPoints[index] + opts.chartData.eachSpacing / 2; var textList = seriesData.map(function(item) { return { text: option.formatter ? option.formatter(item, categories[index], index, opts) : item.name + ': ' + item.data, color: item.color, disableLegend: item.disableLegend ? true : false, legendShape: opts.extra.tooltip.legendShape == 'auto'? item.legendShape : opts.extra.tooltip.legendShape }; }); textList = textList.filter(function(item) { if (item.disableLegend !== true) { return item; } }); var offset = { x: Math.round(points), y: 0 }; return { textList: textList, offset: offset }; }
function getCandleToolTipData(series, seriesData, opts, index, categories, extra) { var option = arguments.length > 6 && arguments[6] !== undefined ? arguments[6] : {}; var calPoints = opts.chartData.calPoints; let upColor = extra.color.upFill; let downColor = extra.color.downFill; //颜色顺序为开盘,收盘,最低,最高
let color = [upColor, upColor, downColor, upColor]; var textList = []; seriesData.map(function(item) { if (index == 0) { if (item.data[1] - item.data[0] < 0) { color[1] = downColor; } else { color[1] = upColor; } } else { if (item.data[0] < series[index - 1][1]) { color[0] = downColor; } if (item.data[1] < item.data[0]) { color[1] = downColor; } if (item.data[2] > series[index - 1][1]) { color[2] = upColor; } if (item.data[3] < series[index - 1][1]) { color[3] = downColor; } } let text1 = { text: '开盘:' + item.data[0], color: color[0], legendShape: opts.extra.tooltip.legendShape == 'auto'? item.legendShape : opts.extra.tooltip.legendShape }; let text2 = { text: '收盘:' + item.data[1], color: color[1], legendShape: opts.extra.tooltip.legendShape == 'auto'? item.legendShape : opts.extra.tooltip.legendShape }; let text3 = { text: '最低:' + item.data[2], color: color[2], legendShape: opts.extra.tooltip.legendShape == 'auto'? item.legendShape : opts.extra.tooltip.legendShape }; let text4 = { text: '最高:' + item.data[3], color: color[3], legendShape: opts.extra.tooltip.legendShape == 'auto'? item.legendShape : opts.extra.tooltip.legendShape }; textList.push(text1, text2, text3, text4); }); var validCalPoints = []; var offset = { x: 0, y: 0 }; for (let i = 0; i < calPoints.length; i++) { let points = calPoints[i]; if (typeof points[index] !== 'undefined' && points[index] !== null) { validCalPoints.push(points[index]); } } offset.x = Math.round(validCalPoints[0][0].x); return { textList: textList, offset: offset }; }
function filterSeries(series) { let tempSeries = []; for (let i = 0; i < series.length; i++) { if (series[i].show == true) { tempSeries.push(series[i]) } } return tempSeries; }
function findCurrentIndex(currentPoints, calPoints, opts, config) { var offset = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 0; var current={ index:-1, group:[] }; var spacing = opts.chartData.eachSpacing / 2; let xAxisPoints = []; if (calPoints && calPoints.length > 0) { if (!opts.categories) { spacing = 0; }else{ for (let i = 1; i < opts.chartData.xAxisPoints.length; i++) { xAxisPoints.push(opts.chartData.xAxisPoints[i] - spacing); } if ((opts.type == 'line' || opts.type == 'area') && opts.xAxis.boundaryGap == 'justify') { xAxisPoints = opts.chartData.xAxisPoints; } } if (isInExactChartArea(currentPoints, opts, config)) { if (!opts.categories) { let timePoints = Array(calPoints.length); for (let i = 0; i < calPoints.length; i++) { timePoints[i] = Array(calPoints[i].length) for (let j = 0; j < calPoints[i].length; j++) { timePoints[i][j] = (Math.abs(calPoints[i][j].x - currentPoints.x)); } }; let pointValue = Array(timePoints.length); let pointIndex = Array(timePoints.length); for (let i = 0; i < timePoints.length; i++) { pointValue[i] = Math.min.apply(null, timePoints[i]); pointIndex[i] = timePoints[i].indexOf(pointValue[i]); } let minValue = Math.min.apply(null, pointValue); current.index = []; for (let i = 0; i < pointValue.length; i++) { if(pointValue[i] == minValue){ current.group.push(i); current.index.push(pointIndex[i]); } }; }else{ xAxisPoints.forEach(function(item, index) { if (currentPoints.x + offset + spacing > item) { current.index = index; } }); } } } return current; }
function findBarChartCurrentIndex(currentPoints, calPoints, opts, config) { var offset = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 0; var current={ index:-1, group:[] }; var spacing = opts.chartData.eachSpacing / 2; let yAxisPoints = opts.chartData.yAxisPoints; if (calPoints && calPoints.length > 0) { if (isInExactChartArea(currentPoints, opts, config)) { yAxisPoints.forEach(function(item, index) { if (currentPoints.y + offset + spacing > item) { current.index = index; } }); } } return current; }
function findLegendIndex(currentPoints, legendData, opts) { let currentIndex = -1; let gap = 0; if (isInExactLegendArea(currentPoints, legendData.area)) { let points = legendData.points; let index = -1; for (let i = 0, len = points.length; i < len; i++) { let item = points[i]; for (let j = 0; j < item.length; j++) { index += 1; let area = item[j]['area']; if (area && currentPoints.x > area[0] - gap && currentPoints.x < area[2] + gap && currentPoints.y > area[1] - gap && currentPoints.y < area[3] + gap) { currentIndex = index; break; } } } return currentIndex; } return currentIndex; }
function isInExactLegendArea(currentPoints, area) { return currentPoints.x > area.start.x && currentPoints.x < area.end.x && currentPoints.y > area.start.y && currentPoints.y < area.end.y; }
function isInExactChartArea(currentPoints, opts, config) { return currentPoints.x <= opts.width - opts.area[1] + 10 && currentPoints.x >= opts.area[3] - 10 && currentPoints.y >= opts.area[0] && currentPoints.y <= opts.height - opts.area[2]; }
function findRadarChartCurrentIndex(currentPoints, radarData, count) { var eachAngleArea = 2 * Math.PI / count; var currentIndex = -1; if (isInExactPieChartArea(currentPoints, radarData.center, radarData.radius)) { var fixAngle = function fixAngle(angle) { if (angle < 0) { angle += 2 * Math.PI; } if (angle > 2 * Math.PI) { angle -= 2 * Math.PI; } return angle; }; var angle = Math.atan2(radarData.center.y - currentPoints.y, currentPoints.x - radarData.center.x); angle = -1 * angle; if (angle < 0) { angle += 2 * Math.PI; } var angleList = radarData.angleList.map(function(item) { item = fixAngle(-1 * item); return item; }); angleList.forEach(function(item, index) { var rangeStart = fixAngle(item - eachAngleArea / 2); var rangeEnd = fixAngle(item + eachAngleArea / 2); if (rangeEnd < rangeStart) { rangeEnd += 2 * Math.PI; } if (angle >= rangeStart && angle <= rangeEnd || angle + 2 * Math.PI >= rangeStart && angle + 2 * Math.PI <= rangeEnd) { currentIndex = index; } }); } return currentIndex; }
function findFunnelChartCurrentIndex(currentPoints, funnelData) { var currentIndex = -1; for (var i = 0, len = funnelData.series.length; i < len; i++) { var item = funnelData.series[i]; if (currentPoints.x > item.funnelArea[0] && currentPoints.x < item.funnelArea[2] && currentPoints.y > item.funnelArea[1] && currentPoints.y < item.funnelArea[3]) { currentIndex = i; break; } } return currentIndex; }
function findWordChartCurrentIndex(currentPoints, wordData) { var currentIndex = -1; for (var i = 0, len = wordData.length; i < len; i++) { var item = wordData[i]; if (currentPoints.x > item.area[0] && currentPoints.x < item.area[2] && currentPoints.y > item.area[1] && currentPoints.y < item.area[3]) { currentIndex = i; break; } } return currentIndex; }
function findMapChartCurrentIndex(currentPoints, opts) { var currentIndex = -1; var cData = opts.chartData.mapData; var data = opts.series; var tmp = pointToCoordinate(currentPoints.y, currentPoints.x, cData.bounds, cData.scale, cData.xoffset, cData.yoffset); var poi = [tmp.x, tmp.y]; for (var i = 0, len = data.length; i < len; i++) { var item = data[i].geometry.coordinates; if (isPoiWithinPoly(poi, item, opts.chartData.mapData.mercator)) { currentIndex = i; break; } } return currentIndex; }
function findRoseChartCurrentIndex(currentPoints, pieData, opts) { var currentIndex = -1; var series = getRoseDataPoints(opts._series_, opts.extra.rose.type, pieData.radius, pieData.radius); if (pieData && pieData.center && isInExactPieChartArea(currentPoints, pieData.center, pieData.radius)) { var angle = Math.atan2(pieData.center.y - currentPoints.y, currentPoints.x - pieData.center.x); angle = -angle; if(opts.extra.rose && opts.extra.rose.offsetAngle){ angle = angle - opts.extra.rose.offsetAngle * Math.PI / 180; } for (var i = 0, len = series.length; i < len; i++) { if (isInAngleRange(angle, series[i]._start_, series[i]._start_ + series[i]._rose_proportion_ * 2 * Math.PI)) { currentIndex = i; break; } } } return currentIndex; }
function findPieChartCurrentIndex(currentPoints, pieData, opts) { var currentIndex = -1; var series = getPieDataPoints(pieData.series); if (pieData && pieData.center && isInExactPieChartArea(currentPoints, pieData.center, pieData.radius)) { var angle = Math.atan2(pieData.center.y - currentPoints.y, currentPoints.x - pieData.center.x); angle = -angle; if(opts.extra.pie && opts.extra.pie.offsetAngle){ angle = angle - opts.extra.pie.offsetAngle * Math.PI / 180; } if(opts.extra.ring && opts.extra.ring.offsetAngle){ angle = angle - opts.extra.ring.offsetAngle * Math.PI / 180; } for (var i = 0, len = series.length; i < len; i++) { if (isInAngleRange(angle, series[i]._start_, series[i]._start_ + series[i]._proportion_ * 2 * Math.PI)) { currentIndex = i; break; } } } return currentIndex; }
function isInExactPieChartArea(currentPoints, center, radius) { return Math.pow(currentPoints.x - center.x, 2) + Math.pow(currentPoints.y - center.y, 2) <= Math.pow(radius, 2); }
function splitPoints(points,eachSeries) { var newPoints = []; var items = []; points.forEach(function(item, index) { if(eachSeries.connectNulls){ if (item !== null) { items.push(item); } }else{ if (item !== null) { items.push(item); } else { if (items.length) { newPoints.push(items); } items = []; } } }); if (items.length) { newPoints.push(items); } return newPoints; }
function calLegendData(series, opts, config, chartData, context) { let legendData = { area: { start: { x: 0, y: 0 }, end: { x: 0, y: 0 }, width: 0, height: 0, wholeWidth: 0, wholeHeight: 0 }, points: [], widthArr: [], heightArr: [] }; if (opts.legend.show === false) { chartData.legendData = legendData; return legendData; } let padding = opts.legend.padding * opts.pix; let margin = opts.legend.margin * opts.pix; let fontSize = opts.legend.fontSize ? opts.legend.fontSize * opts.pix : config.fontSize; let shapeWidth = 15 * opts.pix; let shapeRight = 5 * opts.pix; let lineHeight = Math.max(opts.legend.lineHeight * opts.pix, fontSize); if (opts.legend.position == 'top' || opts.legend.position == 'bottom') { let legendList = []; let widthCount = 0; let widthCountArr = []; let currentRow = []; for (let i = 0; i < series.length; i++) { let item = series[i]; const legendText = item.legendText ? item.legendText : item.name; let itemWidth = shapeWidth + shapeRight + measureText(legendText || 'undefined', fontSize, context) + opts.legend.itemGap * opts.pix; if (widthCount + itemWidth > opts.width - opts.area[1] - opts.area[3]) { legendList.push(currentRow); widthCountArr.push(widthCount - opts.legend.itemGap * opts.pix); widthCount = itemWidth; currentRow = [item]; } else { widthCount += itemWidth; currentRow.push(item); } } if (currentRow.length) { legendList.push(currentRow); widthCountArr.push(widthCount - opts.legend.itemGap * opts.pix); legendData.widthArr = widthCountArr; let legendWidth = Math.max.apply(null, widthCountArr); switch (opts.legend.float) { case 'left': legendData.area.start.x = opts.area[3]; legendData.area.end.x = opts.area[3] + legendWidth + 2 * padding; break; case 'right': legendData.area.start.x = opts.width - opts.area[1] - legendWidth - 2 * padding; legendData.area.end.x = opts.width - opts.area[1]; break; default: legendData.area.start.x = (opts.width - legendWidth) / 2 - padding; legendData.area.end.x = (opts.width + legendWidth) / 2 + padding; } legendData.area.width = legendWidth + 2 * padding; legendData.area.wholeWidth = legendWidth + 2 * padding; legendData.area.height = legendList.length * lineHeight + 2 * padding; legendData.area.wholeHeight = legendList.length * lineHeight + 2 * padding + 2 * margin; legendData.points = legendList; } } else { let len = series.length; let maxHeight = opts.height - opts.area[0] - opts.area[2] - 2 * margin - 2 * padding; let maxLength = Math.min(Math.floor(maxHeight / lineHeight), len); legendData.area.height = maxLength * lineHeight + padding * 2; legendData.area.wholeHeight = maxLength * lineHeight + padding * 2; switch (opts.legend.float) { case 'top': legendData.area.start.y = opts.area[0] + margin; legendData.area.end.y = opts.area[0] + margin + legendData.area.height; break; case 'bottom': legendData.area.start.y = opts.height - opts.area[2] - margin - legendData.area.height; legendData.area.end.y = opts.height - opts.area[2] - margin; break; default: legendData.area.start.y = (opts.height - legendData.area.height) / 2; legendData.area.end.y = (opts.height + legendData.area.height) / 2; } let lineNum = len % maxLength === 0 ? len / maxLength : Math.floor((len / maxLength) + 1); let currentRow = []; for (let i = 0; i < lineNum; i++) { let temp = series.slice(i * maxLength, i * maxLength + maxLength); currentRow.push(temp); } legendData.points = currentRow; if (currentRow.length) { for (let i = 0; i < currentRow.length; i++) { let item = currentRow[i]; let maxWidth = 0; for (let j = 0; j < item.length; j++) { let itemWidth = shapeWidth + shapeRight + measureText(item[j].name || 'undefined', fontSize, context) + opts.legend.itemGap * opts.pix; if (itemWidth > maxWidth) { maxWidth = itemWidth; } } legendData.widthArr.push(maxWidth); legendData.heightArr.push(item.length * lineHeight + padding * 2); } let legendWidth = 0 for (let i = 0; i < legendData.widthArr.length; i++) { legendWidth += legendData.widthArr[i]; } legendData.area.width = legendWidth - opts.legend.itemGap * opts.pix + 2 * padding; legendData.area.wholeWidth = legendData.area.width + padding; } } switch (opts.legend.position) { case 'top': legendData.area.start.y = opts.area[0] + margin; legendData.area.end.y = opts.area[0] + margin + legendData.area.height; break; case 'bottom': legendData.area.start.y = opts.height - opts.area[2] - legendData.area.height - margin; legendData.area.end.y = opts.height - opts.area[2] - margin; break; case 'left': legendData.area.start.x = opts.area[3]; legendData.area.end.x = opts.area[3] + legendData.area.width; break; case 'right': legendData.area.start.x = opts.width - opts.area[1] - legendData.area.width; legendData.area.end.x = opts.width - opts.area[1]; break; } chartData.legendData = legendData; return legendData; }
function calCategoriesData(categories, opts, config, eachSpacing, context) { var result = { angle: 0, xAxisHeight: opts.xAxis.lineHeight * opts.pix + opts.xAxis.marginTop * opts.pix }; var fontSize = opts.xAxis.fontSize * opts.pix; var categoriesTextLenth = categories.map(function(item,index) { var xitem = opts.xAxis.formatter ? opts.xAxis.formatter(item,index,opts) : item; return measureText(String(xitem), fontSize, context); }); var maxTextLength = Math.max.apply(this, categoriesTextLenth); if (opts.xAxis.rotateLabel == true) { result.angle = opts.xAxis.rotateAngle * Math.PI / 180; let tempHeight = opts.xAxis.marginTop * opts.pix * 2 + Math.abs(maxTextLength * Math.sin(result.angle)) tempHeight = tempHeight < fontSize + opts.xAxis.marginTop * opts.pix * 2 ? tempHeight + opts.xAxis.marginTop * opts.pix * 2 : tempHeight; result.xAxisHeight = tempHeight; } if (opts.enableScroll && opts.xAxis.scrollShow) { result.xAxisHeight += 6 * opts.pix; } if (opts.xAxis.disabled){ result.xAxisHeight = 0; } return result; }
function getXAxisTextList(series, opts, config, stack) { var index = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : -1; var data; if (stack == 'stack') { data = dataCombineStack(series, opts.categories.length); } else { data = dataCombine(series); } var sorted = []; // remove null from data
data = data.filter(function(item) { //return item !== null;
if (typeof item === 'object' && item !== null) { if (item.constructor.toString().indexOf('Array') > -1) { return item !== null; } else { return item.value !== null; } } else { return item !== null; } }); data.map(function(item) { if (typeof item === 'object') { if (item.constructor.toString().indexOf('Array') > -1) { if (opts.type == 'candle') { item.map(function(subitem) { sorted.push(subitem); }) } else { sorted.push(item[0]); } } else { sorted.push(item.value); } } else { sorted.push(item); } })
var minData = 0; var maxData = 0; if (sorted.length > 0) { minData = Math.min.apply(this, sorted); maxData = Math.max.apply(this, sorted); } //为了兼容v1.9.0之前的项目
if (index > -1) { if (typeof opts.xAxis.data[index].min === 'number') { minData = Math.min(opts.xAxis.data[index].min, minData); } if (typeof opts.xAxis.data[index].max === 'number') { maxData = Math.max(opts.xAxis.data[index].max, maxData); } } else { if (typeof opts.xAxis.min === 'number') { minData = Math.min(opts.xAxis.min, minData); } if (typeof opts.xAxis.max === 'number') { maxData = Math.max(opts.xAxis.max, maxData); } } if (minData === maxData) { var rangeSpan = maxData || 10; maxData += rangeSpan; } //var dataRange = getDataRange(minData, maxData);
var minRange = minData; var maxRange = maxData; var range = []; var eachRange = (maxRange - minRange) / opts.xAxis.splitNumber; for (var i = 0; i <= opts.xAxis.splitNumber; i++) { range.push(minRange + eachRange * i); } return range; }
function calXAxisData(series, opts, config, context) { //堆叠图重算Y轴
var columnstyle = assign({}, { type: "" }, opts.extra.bar); var result = { angle: 0, xAxisHeight: opts.xAxis.lineHeight * opts.pix + opts.xAxis.marginTop * opts.pix }; result.ranges = getXAxisTextList(series, opts, config, columnstyle.type); result.rangesFormat = result.ranges.map(function(item) { //item = opts.xAxis.formatter ? opts.xAxis.formatter(item) : util.toFixed(item, 2);
item = util.toFixed(item, 2); return item; }); var xAxisScaleValues = result.ranges.map(function(item) { // 如果刻度值是浮点数,则保留两位小数
item = util.toFixed(item, 2); // 若有自定义格式则调用自定义的格式化函数
//item = opts.xAxis.formatter ? opts.xAxis.formatter(Number(item)) : item;
return item; }); result = Object.assign(result, getXAxisPoints(xAxisScaleValues, opts, config)); // 计算X轴刻度的属性譬如每个刻度的间隔,刻度的起始点\结束点以及总长
var eachSpacing = result.eachSpacing; var textLength = xAxisScaleValues.map(function(item) { return measureText(item, opts.xAxis.fontSize * opts.pix, context); }); if (opts.xAxis.disabled === true) { result.xAxisHeight = 0; } return result; }
function getRadarDataPoints(angleList, center, radius, series, opts) { var process = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : 1; var radarOption = opts.extra.radar || {}; radarOption.max = radarOption.max || 0; var maxData = Math.max(radarOption.max, Math.max.apply(null, dataCombine(series))); var data = []; for (let i = 0; i < series.length; i++) { let each = series[i]; let listItem = {}; listItem.color = each.color; listItem.legendShape = each.legendShape; listItem.pointShape = each.pointShape; listItem.data = []; each.data.forEach(function(item, index) { let tmp = {}; tmp.angle = angleList[index]; tmp.proportion = item / maxData; tmp.value = item; tmp.position = convertCoordinateOrigin(radius * tmp.proportion * process * Math.cos(tmp.angle), radius * tmp.proportion * process * Math.sin(tmp.angle), center); listItem.data.push(tmp); }); data.push(listItem); } return data; }
function getPieDataPoints(series, radius) { var process = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 1; var count = 0; var _start_ = 0; for (let i = 0; i < series.length; i++) { let item = series[i]; item.data = item.data === null ? 0 : item.data; count += item.data; } for (let i = 0; i < series.length; i++) { let item = series[i]; item.data = item.data === null ? 0 : item.data; if (count === 0) { item._proportion_ = 1 / series.length * process; } else { item._proportion_ = item.data / count * process; } item._radius_ = radius; } for (let i = 0; i < series.length; i++) { let item = series[i]; item._start_ = _start_; _start_ += 2 * item._proportion_ * Math.PI; } return series; }
function getFunnelDataPoints(series, radius, option, eachSpacing) { var process = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 1; for (let i = 0; i < series.length; i++) { if(option.type == 'funnel'){ series[i].radius = series[i].data / series[0].data * radius * process; }else{ series[i].radius = (eachSpacing * (series.length - i)) / (eachSpacing * series.length) * radius * process; } series[i]._proportion_ = series[i].data / series[0].data; } // if(option.type !== 'pyramid'){
// series.reverse();
// }
return series; }
function getRoseDataPoints(series, type, minRadius, radius) { var process = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 1; var count = 0; var _start_ = 0; var dataArr = []; for (let i = 0; i < series.length; i++) { let item = series[i]; item.data = item.data === null ? 0 : item.data; count += item.data; dataArr.push(item.data); } var minData = Math.min.apply(null, dataArr); var maxData = Math.max.apply(null, dataArr); var radiusLength = radius - minRadius; for (let i = 0; i < series.length; i++) { let item = series[i]; item.data = item.data === null ? 0 : item.data; if (count === 0) { item._proportion_ = 1 / series.length * process; item._rose_proportion_ = 1 / series.length * process; } else { item._proportion_ = item.data / count * process; if(type == 'area'){ item._rose_proportion_ = 1 / series.length * process; }else{ item._rose_proportion_ = item.data / count * process; } } item._radius_ = minRadius + radiusLength * ((item.data - minData) / (maxData - minData)) || radius; } for (let i = 0; i < series.length; i++) { let item = series[i]; item._start_ = _start_; _start_ += 2 * item._rose_proportion_ * Math.PI; } return series; }
function getArcbarDataPoints(series, arcbarOption) { var process = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 1; if (process == 1) { process = 0.999999; } for (let i = 0; i < series.length; i++) { let item = series[i]; item.data = item.data === null ? 0 : item.data; let totalAngle; if (arcbarOption.type == 'circle') { totalAngle = 2; } else { if(arcbarOption.direction == 'ccw'){ if (arcbarOption.startAngle < arcbarOption.endAngle) { totalAngle = 2 + arcbarOption.startAngle - arcbarOption.endAngle; } else { totalAngle = arcbarOption.startAngle - arcbarOption.endAngle; } }else{ if (arcbarOption.endAngle < arcbarOption.startAngle) { totalAngle = 2 + arcbarOption.endAngle - arcbarOption.startAngle; } else { totalAngle = arcbarOption.startAngle - arcbarOption.endAngle; } } } item._proportion_ = totalAngle * item.data * process + arcbarOption.startAngle; if(arcbarOption.direction == 'ccw'){ item._proportion_ = arcbarOption.startAngle - totalAngle * item.data * process ; } if (item._proportion_ >= 2) { item._proportion_ = item._proportion_ % 2; } } return series; }
function getGaugeArcbarDataPoints(series, arcbarOption) { var process = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 1; if (process == 1) { process = 0.999999; } for (let i = 0; i < series.length; i++) { let item = series[i]; item.data = item.data === null ? 0 : item.data; let totalAngle; if (arcbarOption.type == 'circle') { totalAngle = 2; } else { if (arcbarOption.endAngle < arcbarOption.startAngle) { totalAngle = 2 + arcbarOption.endAngle - arcbarOption.startAngle; } else { totalAngle = arcbarOption.startAngle - arcbarOption.endAngle; } } item._proportion_ = totalAngle * item.data * process + arcbarOption.startAngle; if (item._proportion_ >= 2) { item._proportion_ = item._proportion_ % 2; } } return series; }
function getGaugeAxisPoints(categories, startAngle, endAngle) { let totalAngle; if (endAngle < startAngle) { totalAngle = 2 + endAngle - startAngle; } else { totalAngle = startAngle - endAngle; } let tempStartAngle = startAngle; for (let i = 0; i < categories.length; i++) { categories[i].value = categories[i].value === null ? 0 : categories[i].value; categories[i]._startAngle_ = tempStartAngle; categories[i]._endAngle_ = totalAngle * categories[i].value + startAngle; if (categories[i]._endAngle_ >= 2) { categories[i]._endAngle_ = categories[i]._endAngle_ % 2; } tempStartAngle = categories[i]._endAngle_; } return categories; }
function getGaugeDataPoints(series, categories, gaugeOption) { let process = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 1; for (let i = 0; i < series.length; i++) { let item = series[i]; item.data = item.data === null ? 0 : item.data; if (gaugeOption.pointer.color == 'auto') { for (let i = 0; i < categories.length; i++) { if (item.data <= categories[i].value) { item.color = categories[i].color; break; } } } else { item.color = gaugeOption.pointer.color; } let totalAngle; if (gaugeOption.endAngle < gaugeOption.startAngle) { totalAngle = 2 + gaugeOption.endAngle - gaugeOption.startAngle; } else { totalAngle = gaugeOption.startAngle - gaugeOption.endAngle; } item._endAngle_ = totalAngle * item.data + gaugeOption.startAngle; item._oldAngle_ = gaugeOption.oldAngle; if (gaugeOption.oldAngle < gaugeOption.endAngle) { item._oldAngle_ += 2; } if (item.data >= gaugeOption.oldData) { item._proportion_ = (item._endAngle_ - item._oldAngle_) * process + gaugeOption.oldAngle; } else { item._proportion_ = item._oldAngle_ - (item._oldAngle_ - item._endAngle_) * process; } if (item._proportion_ >= 2) { item._proportion_ = item._proportion_ % 2; } } return series; }
function getPieTextMaxLength(series, config, context, opts) { series = getPieDataPoints(series); let maxLength = 0; for (let i = 0; i < series.length; i++) { let item = series[i]; let text = item.formatter ? item.formatter(+item._proportion_.toFixed(2)) : util.toFixed(item._proportion_ * 100) + '%'; maxLength = Math.max(maxLength, measureText(text, item.textSize * opts.pix || config.fontSize, context)); } return maxLength; }
function fixColumeData(points, eachSpacing, columnLen, index, config, opts) { return points.map(function(item) { if (item === null) { return null; } var seriesGap = 0; var categoryGap = 0; if (opts.type == 'mix') { seriesGap = opts.extra.mix.column.seriesGap * opts.pix || 0; categoryGap = opts.extra.mix.column.categoryGap * opts.pix || 0; } else { seriesGap = opts.extra.column.seriesGap * opts.pix || 0; categoryGap = opts.extra.column.categoryGap * opts.pix || 0; } seriesGap = Math.min(seriesGap, eachSpacing / columnLen) categoryGap = Math.min(categoryGap, eachSpacing / columnLen) item.width = Math.ceil((eachSpacing - 2 * categoryGap - seriesGap * (columnLen - 1)) / columnLen); if (opts.extra.mix && opts.extra.mix.column.width && +opts.extra.mix.column.width > 0) { item.width = Math.min(item.width, +opts.extra.mix.column.width * opts.pix); } if (opts.extra.column && opts.extra.column.width && +opts.extra.column.width > 0) { item.width = Math.min(item.width, +opts.extra.column.width * opts.pix); } if (item.width <= 0) { item.width = 1; } item.x += (index + 0.5 - columnLen / 2) * (item.width + seriesGap); return item; }); }
function fixBarData(points, eachSpacing, columnLen, index, config, opts) { return points.map(function(item) { if (item === null) { return null; } var seriesGap = 0; var categoryGap = 0; seriesGap = opts.extra.bar.seriesGap * opts.pix || 0; categoryGap = opts.extra.bar.categoryGap * opts.pix || 0; seriesGap = Math.min(seriesGap, eachSpacing / columnLen) categoryGap = Math.min(categoryGap, eachSpacing / columnLen) item.width = Math.ceil((eachSpacing - 2 * categoryGap - seriesGap * (columnLen - 1)) / columnLen); if (opts.extra.bar && opts.extra.bar.width && +opts.extra.bar.width > 0) { item.width = Math.min(item.width, +opts.extra.bar.width * opts.pix); } if (item.width <= 0) { item.width = 1; } item.y += (index + 0.5 - columnLen / 2) * (item.width + seriesGap); return item; }); }
function fixColumeMeterData(points, eachSpacing, columnLen, index, config, opts, border) { var categoryGap = opts.extra.column.categoryGap * opts.pix || 0; return points.map(function(item) { if (item === null) { return null; } item.width = eachSpacing - 2 * categoryGap; if (opts.extra.column && opts.extra.column.width && +opts.extra.column.width > 0) { item.width = Math.min(item.width, +opts.extra.column.width * opts.pix); } if (index > 0) { item.width -= border; } return item; }); }
function fixColumeStackData(points, eachSpacing, columnLen, index, config, opts, series) { var categoryGap = opts.extra.column.categoryGap * opts.pix || 0; return points.map(function(item, indexn) { if (item === null) { return null; } item.width = Math.ceil(eachSpacing - 2 * categoryGap); if (opts.extra.column && opts.extra.column.width && +opts.extra.column.width > 0) { item.width = Math.min(item.width, +opts.extra.column.width * opts.pix); } if (item.width <= 0) { item.width = 1; } return item; }); }
function fixBarStackData(points, eachSpacing, columnLen, index, config, opts, series) { var categoryGap = opts.extra.bar.categoryGap * opts.pix || 0; return points.map(function(item, indexn) { if (item === null) { return null; } item.width = Math.ceil(eachSpacing - 2 * categoryGap); if (opts.extra.bar && opts.extra.bar.width && +opts.extra.bar.width > 0) { item.width = Math.min(item.width, +opts.extra.bar.width * opts.pix); } if (item.width <= 0) { item.width = 1; } return item; }); }
function getXAxisPoints(categories, opts, config) { var spacingValid = opts.width - opts.area[1] - opts.area[3]; var dataCount = opts.enableScroll ? Math.min(opts.xAxis.itemCount, categories.length) : categories.length; if ((opts.type == 'line' || opts.type == 'area' || opts.type == 'scatter' || opts.type == 'bubble' || opts.type == 'bar') && dataCount > 1 && opts.xAxis.boundaryGap == 'justify') { dataCount -= 1; } var widthRatio = 0; if(opts.type == 'mount' && opts.extra && opts.extra.mount && opts.extra.mount.widthRatio && opts.extra.mount.widthRatio > 1){ if(opts.extra.mount.widthRatio>2) opts.extra.mount.widthRatio = 2 widthRatio = opts.extra.mount.widthRatio - 1; dataCount += widthRatio; } var eachSpacing = spacingValid / dataCount; var xAxisPoints = []; var startX = opts.area[3]; var endX = opts.width - opts.area[1]; categories.forEach(function(item, index) { xAxisPoints.push(startX + widthRatio / 2 * eachSpacing + index * eachSpacing); }); if (opts.xAxis.boundaryGap !== 'justify') { if (opts.enableScroll === true) { xAxisPoints.push(startX + widthRatio * eachSpacing + categories.length * eachSpacing); } else { xAxisPoints.push(endX); } } return { xAxisPoints: xAxisPoints, startX: startX, endX: endX, eachSpacing: eachSpacing }; }
function getCandleDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config) { var process = arguments.length > 7 && arguments[7] !== undefined ? arguments[7] : 1; var points = []; var validHeight = opts.height - opts.area[0] - opts.area[2]; data.forEach(function(item, index) { if (item === null) { points.push(null); } else { var cPoints = []; item.forEach(function(items, indexs) { var point = {}; point.x = xAxisPoints[index] + Math.round(eachSpacing / 2); var value = items.value || items; var height = validHeight * (value - minRange) / (maxRange - minRange); height *= process; point.y = opts.height - Math.round(height) - opts.area[2]; cPoints.push(point); }); points.push(cPoints); } }); return points; }
function getDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config) { var process = arguments.length > 7 && arguments[7] !== undefined ? arguments[7] : 1; var boundaryGap = 'center'; if (opts.type == 'line' || opts.type == 'area' || opts.type == 'scatter' || opts.type == 'bubble' ) { boundaryGap = opts.xAxis.boundaryGap; } var points = []; var validHeight = opts.height - opts.area[0] - opts.area[2]; var validWidth = opts.width - opts.area[1] - opts.area[3]; data.forEach(function(item, index) { if (item === null) { points.push(null); } else { var point = {}; point.color = item.color; point.x = xAxisPoints[index]; var value = item; if (typeof item === 'object' && item !== null) { if (item.constructor.toString().indexOf('Array') > -1) { let xranges, xminRange, xmaxRange; xranges = [].concat(opts.chartData.xAxisData.ranges); xminRange = xranges.shift(); xmaxRange = xranges.pop(); value = item[1]; point.x = opts.area[3] + validWidth * (item[0] - xminRange) / (xmaxRange - xminRange); if(opts.type == 'bubble'){ point.r = item[2]; point.t = item[3]; } } else { value = item.value; } } if (boundaryGap == 'center') { point.x += eachSpacing / 2; } var height = validHeight * (value - minRange) / (maxRange - minRange); height *= process; point.y = opts.height - height - opts.area[2]; points.push(point); } }); return points; }
function getLineDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config, lineOption, process){ var process = arguments.length > 8 && arguments[8] !== undefined ? arguments[8] : 1; var boundaryGap = opts.xAxis.boundaryGap; var points = []; var validHeight = opts.height - opts.area[0] - opts.area[2]; var validWidth = opts.width - opts.area[1] - opts.area[3]; data.forEach(function(item, index) { if (item === null) { points.push(null); } else { var point = {}; point.color = item.color; if(lineOption.animation == 'vertical'){ point.x = xAxisPoints[index]; var value = item; if (typeof item === 'object' && item !== null) { if (item.constructor.toString().indexOf('Array') > -1) { let xranges, xminRange, xmaxRange; xranges = [].concat(opts.chartData.xAxisData.ranges); xminRange = xranges.shift(); xmaxRange = xranges.pop(); value = item[1]; point.x = opts.area[3] + validWidth * (item[0] - xminRange) / (xmaxRange - xminRange); } else { value = item.value; } } if (boundaryGap == 'center') { point.x += eachSpacing / 2; } var height = validHeight * (value - minRange) / (maxRange - minRange); height *= process; point.y = opts.height - height - opts.area[2]; points.push(point); }else{ point.x = xAxisPoints[0] + eachSpacing * index * process; var value = item; if (boundaryGap == 'center') { point.x += eachSpacing / 2; } var height = validHeight * (value - minRange) / (maxRange - minRange); point.y = opts.height - height - opts.area[2]; points.push(point); } } }); return points; }
function getColumnDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config, zeroPoints, process){ var process = arguments.length > 8 && arguments[8] !== undefined ? arguments[8] : 1; var points = []; var validHeight = opts.height - opts.area[0] - opts.area[2]; var validWidth = opts.width - opts.area[1] - opts.area[3]; data.forEach(function(item, index) { if (item === null) { points.push(null); } else { var point = {}; point.color = item.color; point.x = xAxisPoints[index]; var value = item; if (typeof item === 'object' && item !== null) { if (item.constructor.toString().indexOf('Array') > -1) { let xranges, xminRange, xmaxRange; xranges = [].concat(opts.chartData.xAxisData.ranges); xminRange = xranges.shift(); xmaxRange = xranges.pop(); value = item[1]; point.x = opts.area[3] + validWidth * (item[0] - xminRange) / (xmaxRange - xminRange); } else { value = item.value; } } point.x += eachSpacing / 2; var height = validHeight * (value * process - minRange) / (maxRange - minRange); point.y = opts.height - height - opts.area[2]; points.push(point); } }); return points; }
function getMountDataPoints(series, minRange, maxRange, xAxisPoints, eachSpacing, opts, mountOption, zeroPoints) { var process = arguments.length > 8 && arguments[8] !== undefined ? arguments[8] : 1; var points = []; var validHeight = opts.height - opts.area[0] - opts.area[2]; var validWidth = opts.width - opts.area[1] - opts.area[3]; var mountWidth = eachSpacing * mountOption.widthRatio; series.forEach(function(item, index) { if (item === null) { points.push(null); } else { var point = {}; point.color = item.color; point.x = xAxisPoints[index]; point.x += eachSpacing / 2; var value = item.data; var height = validHeight * (value * process - minRange) / (maxRange - minRange); point.y = opts.height - height - opts.area[2]; point.value = value; point.width = mountWidth; points.push(point); } }); return points; }
function getBarDataPoints(data, minRange, maxRange, yAxisPoints, eachSpacing, opts, config) { var process = arguments.length > 7 && arguments[7] !== undefined ? arguments[7] : 1; var points = []; var validHeight = opts.height - opts.area[0] - opts.area[2]; var validWidth = opts.width - opts.area[1] - opts.area[3]; data.forEach(function(item, index) { if (item === null) { points.push(null); } else { var point = {}; point.color = item.color; point.y = yAxisPoints[index]; var value = item; if (typeof item === 'object' && item !== null) { value = item.value; } var height = validWidth * (value - minRange) / (maxRange - minRange); height *= process; point.height = height; point.value = value; point.x = height + opts.area[3]; points.push(point); } }); return points; }
function getStackDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config, seriesIndex, stackSeries) { var process = arguments.length > 9 && arguments[9] !== undefined ? arguments[9] : 1; var points = []; var validHeight = opts.height - opts.area[0] - opts.area[2]; data.forEach(function(item, index) { if (item === null) { points.push(null); } else { var point = {}; point.color = item.color; point.x = xAxisPoints[index] + Math.round(eachSpacing / 2);
if (seriesIndex > 0) { var value = 0; for (let i = 0; i <= seriesIndex; i++) { value += stackSeries[i].data[index]; } var value0 = value - item; var height = validHeight * (value - minRange) / (maxRange - minRange); var height0 = validHeight * (value0 - minRange) / (maxRange - minRange); } else { var value = item; if (typeof item === 'object' && item !== null) { value = item.value; } var height = validHeight * (value - minRange) / (maxRange - minRange); var height0 = 0; } var heightc = height0; height *= process; heightc *= process; point.y = opts.height - Math.round(height) - opts.area[2]; point.y0 = opts.height - Math.round(heightc) - opts.area[2]; points.push(point); } }); return points; }
function getBarStackDataPoints(data, minRange, maxRange, yAxisPoints, eachSpacing, opts, config, seriesIndex, stackSeries) { var process = arguments.length > 9 && arguments[9] !== undefined ? arguments[9] : 1; var points = []; var validHeight = opts.width - opts.area[1] - opts.area[3]; data.forEach(function(item, index) { if (item === null) { points.push(null); } else { var point = {}; point.color = item.color; point.y = yAxisPoints[index]; if (seriesIndex > 0) { var value = 0; for (let i = 0; i <= seriesIndex; i++) { value += stackSeries[i].data[index]; } var value0 = value - item; var height = validHeight * (value - minRange) / (maxRange - minRange); var height0 = validHeight * (value0 - minRange) / (maxRange - minRange); } else { var value = item; if (typeof item === 'object' && item !== null) { value = item.value; } var height = validHeight * (value - minRange) / (maxRange - minRange); var height0 = 0; } var heightc = height0; height *= process; heightc *= process; point.height = height - heightc; point.x = opts.area[3] + height; point.x0 = opts.area[3] + heightc; points.push(point); } }); return points; }
function getYAxisTextList(series, opts, config, stack, yData) { var index = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : -1; var data; if (stack == 'stack') { data = dataCombineStack(series, opts.categories.length); } else { data = dataCombine(series); } var sorted = []; // remove null from data
data = data.filter(function(item) { //return item !== null;
if (typeof item === 'object' && item !== null) { if (item.constructor.toString().indexOf('Array') > -1) { return item !== null; } else { return item.value !== null; } } else { return item !== null; } }); data.map(function(item) { if (typeof item === 'object') { if (item.constructor.toString().indexOf('Array') > -1) { if (opts.type == 'candle') { item.map(function(subitem) { sorted.push(subitem); }) } else { sorted.push(item[1]); } } else { sorted.push(item.value); } } else { sorted.push(item); } }) var minData = yData.min || 0; var maxData = yData.max || 0; if (sorted.length > 0) { minData = Math.min.apply(this, sorted); maxData = Math.max.apply(this, sorted); } if (minData === maxData) { if(maxData == 0){ maxData = 10; }else{ minData = 0; } } var dataRange = getDataRange(minData, maxData); var minRange = (yData.min === undefined || yData.min === null) ? dataRange.minRange : yData.min; var maxRange = (yData.max === undefined || yData.max === null) ? dataRange.maxRange : yData.max; var eachRange = (maxRange - minRange) / opts.yAxis.splitNumber; var range = []; for (var i = 0; i <= opts.yAxis.splitNumber; i++) { range.push(minRange + eachRange * i); } return range.reverse(); }
function calYAxisData(series, opts, config, context) { //堆叠图重算Y轴
var columnstyle = assign({}, { type: "" }, opts.extra.column); //如果是多Y轴,重新计算
var YLength = opts.yAxis.data.length; var newSeries = new Array(YLength); if (YLength > 0) { for (let i = 0; i < YLength; i++) { newSeries[i] = []; for (let j = 0; j < series.length; j++) { if (series[j].index == i) { newSeries[i].push(series[j]); } } } var rangesArr = new Array(YLength); var rangesFormatArr = new Array(YLength); var yAxisWidthArr = new Array(YLength);
for (let i = 0; i < YLength; i++) { let yData = opts.yAxis.data[i]; //如果总开关不显示,强制每个Y轴为不显示
if (opts.yAxis.disabled == true) { yData.disabled = true; } if(yData.type === 'categories'){ if(!yData.formatter){ yData.formatter = (val,index,opts) => {return val + (yData.unit || '')}; } yData.categories = yData.categories || opts.categories; rangesArr[i] = yData.categories; }else{ if(!yData.formatter){ yData.formatter = (val,index,opts) => {return util.toFixed(val, yData.tofix || 0) + (yData.unit || '')}; } rangesArr[i] = getYAxisTextList(newSeries[i], opts, config, columnstyle.type, yData, i); } let yAxisFontSizes = yData.fontSize * opts.pix || config.fontSize; yAxisWidthArr[i] = { position: yData.position ? yData.position : 'left', width: 0 }; rangesFormatArr[i] = rangesArr[i].map(function(items,index) { items = yData.formatter(items,index,opts); yAxisWidthArr[i].width = Math.max(yAxisWidthArr[i].width, measureText(items, yAxisFontSizes, context) + 5); return items; }); let calibration = yData.calibration ? 4 * opts.pix : 0; yAxisWidthArr[i].width += calibration + 3 * opts.pix; if (yData.disabled === true) { yAxisWidthArr[i].width = 0; } } } else { var rangesArr = new Array(1); var rangesFormatArr = new Array(1); var yAxisWidthArr = new Array(1); if(opts.type === 'bar'){ rangesArr[0] = opts.categories; if(!opts.yAxis.formatter){ opts.yAxis.formatter = (val,index,opts) => {return val + (opts.yAxis.unit || '')} } }else{ if(!opts.yAxis.formatter){ opts.yAxis.formatter = (val,index,opts) => {return val.toFixed(opts.yAxis.tofix ) + (opts.yAxis.unit || '')} } rangesArr[0] = getYAxisTextList(series, opts, config, columnstyle.type, {}); } yAxisWidthArr[0] = { position: 'left', width: 0 }; var yAxisFontSize = opts.yAxis.fontSize * opts.pix || config.fontSize; rangesFormatArr[0] = rangesArr[0].map(function(item,index) { item = opts.yAxis.formatter(item,index,opts); yAxisWidthArr[0].width = Math.max(yAxisWidthArr[0].width, measureText(item, yAxisFontSize, context) + 5); return item; }); yAxisWidthArr[0].width += 3 * opts.pix; if (opts.yAxis.disabled === true) { yAxisWidthArr[0] = { position: 'left', width: 0 }; opts.yAxis.data[0] = { disabled: true }; } else { opts.yAxis.data[0] = { disabled: false, position: 'left', max: opts.yAxis.max, min: opts.yAxis.min, formatter: opts.yAxis.formatter }; if(opts.type === 'bar'){ opts.yAxis.data[0].categories = opts.categories; opts.yAxis.data[0].type = 'categories'; } } } return { rangesFormat: rangesFormatArr, ranges: rangesArr, yAxisWidth: yAxisWidthArr }; }
function calTooltipYAxisData(point, series, opts, config, eachSpacing) { let ranges = [].concat(opts.chartData.yAxisData.ranges); let spacingValid = opts.height - opts.area[0] - opts.area[2]; let minAxis = opts.area[0]; let items = []; for (let i = 0; i < ranges.length; i++) { let maxVal = Math.max.apply(this, ranges[i]); let minVal = Math.min.apply(this, ranges[i]); let item = maxVal - (maxVal - minVal) * (point - minAxis) / spacingValid; item = opts.yAxis.data && opts.yAxis.data[i].formatter ? opts.yAxis.data[i].formatter(item, i, opts) : item.toFixed(0); items.push(String(item)) } return items; }
function calMarkLineData(points, opts) { let minRange, maxRange; let spacingValid = opts.height - opts.area[0] - opts.area[2]; for (let i = 0; i < points.length; i++) { points[i].yAxisIndex = points[i].yAxisIndex ? points[i].yAxisIndex : 0; let range = [].concat(opts.chartData.yAxisData.ranges[points[i].yAxisIndex]); minRange = range.pop(); maxRange = range.shift(); let height = spacingValid * (points[i].value - minRange) / (maxRange - minRange); points[i].y = opts.height - Math.round(height) - opts.area[2]; } return points; }
function contextRotate(context, opts) { if (opts.rotateLock !== true) { context.translate(opts.height, 0); context.rotate(90 * Math.PI / 180); } else if (opts._rotate_ !== true) { context.translate(opts.height, 0); context.rotate(90 * Math.PI / 180); opts._rotate_ = true; } }
function drawPointShape(points, color, shape, context, opts) { context.beginPath(); if (opts.dataPointShapeType == 'hollow') { context.setStrokeStyle(color); context.setFillStyle(opts.background); context.setLineWidth(2 * opts.pix); } else { context.setStrokeStyle("#ffffff"); context.setFillStyle(color); context.setLineWidth(1 * opts.pix); } if (shape === 'diamond') { points.forEach(function(item, index) { if (item !== null) { context.moveTo(item.x, item.y - 4.5); context.lineTo(item.x - 4.5, item.y); context.lineTo(item.x, item.y + 4.5); context.lineTo(item.x + 4.5, item.y); context.lineTo(item.x, item.y - 4.5); } }); } else if (shape === 'circle') { points.forEach(function(item, index) { if (item !== null) { context.moveTo(item.x + 2.5 * opts.pix, item.y); context.arc(item.x, item.y, 3 * opts.pix, 0, 2 * Math.PI, false); } }); } else if (shape === 'square') { points.forEach(function(item, index) { if (item !== null) { context.moveTo(item.x - 3.5, item.y - 3.5); context.rect(item.x - 3.5, item.y - 3.5, 7, 7); } }); } else if (shape === 'triangle') { points.forEach(function(item, index) { if (item !== null) { context.moveTo(item.x, item.y - 4.5); context.lineTo(item.x - 4.5, item.y + 4.5); context.lineTo(item.x + 4.5, item.y + 4.5); context.lineTo(item.x, item.y - 4.5); } }); } else if (shape === 'none') { return; } context.closePath(); context.fill(); context.stroke(); }
function drawActivePoint(points, color, shape, context, opts, option, seriesIndex) { if(!opts.tooltip){ return } if(opts.tooltip.group.length>0 && opts.tooltip.group.includes(seriesIndex) == false){ return } var pointIndex = typeof opts.tooltip.index === 'number' ? opts.tooltip.index : opts.tooltip.index[opts.tooltip.group.indexOf(seriesIndex)]; context.beginPath(); if (option.activeType == 'hollow') { context.setStrokeStyle(color); context.setFillStyle(opts.background); context.setLineWidth(2 * opts.pix); } else { context.setStrokeStyle("#ffffff"); context.setFillStyle(color); context.setLineWidth(1 * opts.pix); } if (shape === 'diamond') { points.forEach(function(item, index) { if (item !== null && pointIndex == index ) { context.moveTo(item.x, item.y - 4.5); context.lineTo(item.x - 4.5, item.y); context.lineTo(item.x, item.y + 4.5); context.lineTo(item.x + 4.5, item.y); context.lineTo(item.x, item.y - 4.5); } }); } else if (shape === 'circle') { points.forEach(function(item, index) { if (item !== null && pointIndex == index) { context.moveTo(item.x + 2.5 * opts.pix, item.y); context.arc(item.x, item.y, 3 * opts.pix, 0, 2 * Math.PI, false); } }); } else if (shape === 'square') { points.forEach(function(item, index) { if (item !== null && pointIndex == index) { context.moveTo(item.x - 3.5, item.y - 3.5); context.rect(item.x - 3.5, item.y - 3.5, 7, 7); } }); } else if (shape === 'triangle') { points.forEach(function(item, index) { if (item !== null && pointIndex == index) { context.moveTo(item.x, item.y - 4.5); context.lineTo(item.x - 4.5, item.y + 4.5); context.lineTo(item.x + 4.5, item.y + 4.5); context.lineTo(item.x, item.y - 4.5); } }); } else if (shape === 'none') { return; } context.closePath(); context.fill(); context.stroke(); }
function drawRingTitle(opts, config, context, center) { var titlefontSize = opts.title.fontSize || config.titleFontSize; var subtitlefontSize = opts.subtitle.fontSize || config.subtitleFontSize; var title = opts.title.name || ''; var subtitle = opts.subtitle.name || ''; var titleFontColor = opts.title.color || opts.fontColor; var subtitleFontColor = opts.subtitle.color || opts.fontColor; var titleHeight = title ? titlefontSize : 0; var subtitleHeight = subtitle ? subtitlefontSize : 0; var margin = 5; if (subtitle) { var textWidth = measureText(subtitle, subtitlefontSize * opts.pix, context); var startX = center.x - textWidth / 2 + (opts.subtitle.offsetX|| 0) * opts.pix ; var startY = center.y + subtitlefontSize * opts.pix / 2 + (opts.subtitle.offsetY || 0) * opts.pix; if (title) { startY += (titleHeight * opts.pix + margin) / 2; } context.beginPath(); context.setFontSize(subtitlefontSize * opts.pix); context.setFillStyle(subtitleFontColor); context.fillText(subtitle, startX, startY); context.closePath(); context.stroke(); } if (title) { var _textWidth = measureText(title, titlefontSize * opts.pix, context); var _startX = center.x - _textWidth / 2 + (opts.title.offsetX || 0); var _startY = center.y + titlefontSize * opts.pix / 2 + (opts.title.offsetY || 0) * opts.pix; if (subtitle) { _startY -= (subtitleHeight * opts.pix + margin) / 2; } context.beginPath(); context.setFontSize(titlefontSize * opts.pix); context.setFillStyle(titleFontColor); context.fillText(title, _startX, _startY); context.closePath(); context.stroke(); } }
function drawPointText(points, series, config, context, opts) { // 绘制数据文案
var data = series.data; var textOffset = series.textOffset ? series.textOffset : 0; points.forEach(function(item, index) { if (item !== null) { context.beginPath(); var fontSize = series.textSize ? series.textSize * opts.pix : config.fontSize; context.setFontSize(fontSize); context.setFillStyle(series.textColor || opts.fontColor); var value = data[index] if (typeof data[index] === 'object' && data[index] !== null) { if (data[index].constructor.toString().indexOf('Array')>-1) { value = data[index][1]; } else { value = data[index].value } } var formatVal = series.formatter ? series.formatter(value,index,series,opts) : value; context.setTextAlign('center'); context.fillText(String(formatVal), item.x, item.y - 4 + textOffset * opts.pix); context.closePath(); context.stroke(); context.setTextAlign('left'); } }); }
function drawColumePointText(points, series, config, context, opts) { // 绘制数据文案
var data = series.data; var textOffset = series.textOffset ? series.textOffset : 0; var Position = opts.extra.column.labelPosition; points.forEach(function(item, index) { if (item !== null) { context.beginPath(); var fontSize = series.textSize ? series.textSize * opts.pix : config.fontSize; context.setFontSize(fontSize); context.setFillStyle(series.textColor || opts.fontColor); var value = data[index] if (typeof data[index] === 'object' && data[index] !== null) { if (data[index].constructor.toString().indexOf('Array')>-1) { value = data[index][1]; } else { value = data[index].value } } var formatVal = series.formatter ? series.formatter(value,index,series,opts) : value; context.setTextAlign('center'); var startY = item.y - 4 * opts.pix + textOffset * opts.pix; if(item.y > series.zeroPoints){ startY = item.y + textOffset * opts.pix + fontSize; } if(Position == 'insideTop'){ startY = item.y + fontSize + textOffset * opts.pix; if(item.y > series.zeroPoints){ startY = item.y - textOffset * opts.pix - 4 * opts.pix; } } if(Position == 'center'){ startY = item.y + textOffset * opts.pix + (opts.height - opts.area[2] - item.y + fontSize)/2; if(series.zeroPoints < opts.height - opts.area[2]){ startY = item.y + textOffset * opts.pix + (series.zeroPoints - item.y + fontSize)/2; } if(item.y > series.zeroPoints){ startY = item.y - textOffset * opts.pix - (item.y - series.zeroPoints - fontSize)/2; } if(opts.extra.column.type == 'stack'){ startY = item.y + textOffset * opts.pix + (item.y0 - item.y + fontSize)/2; } } if(Position == 'bottom'){ startY = opts.height - opts.area[2] + textOffset * opts.pix - 4 * opts.pix; if(series.zeroPoints < opts.height - opts.area[2]){ startY = series.zeroPoints + textOffset * opts.pix - 4 * opts.pix; } if(item.y > series.zeroPoints){ startY = series.zeroPoints - textOffset * opts.pix + fontSize + 2 * opts.pix; } if(opts.extra.column.type == 'stack'){ startY = item.y0 + textOffset * opts.pix - 4 * opts.pix; } } context.fillText(String(formatVal), item.x, startY); context.closePath(); context.stroke(); context.setTextAlign('left'); } }); }
function drawMountPointText(points, series, config, context, opts, zeroPoints) { // 绘制数据文案
var data = series.data; var textOffset = series.textOffset ? series.textOffset : 0; var Position = opts.extra.mount.labelPosition; points.forEach(function(item, index) { if (item !== null) { context.beginPath(); var fontSize = series[index].textSize ? series[index].textSize * opts.pix : config.fontSize; context.setFontSize(fontSize); context.setFillStyle(series[index].textColor || opts.fontColor); var value = item.value var formatVal = series[index].formatter ? series[index].formatter(value,index,series,opts) : value; context.setTextAlign('center'); var startY = item.y - 4 * opts.pix + textOffset * opts.pix; if(item.y > zeroPoints){ startY = item.y + textOffset * opts.pix + fontSize; } context.fillText(String(formatVal), item.x, startY); context.closePath(); context.stroke(); context.setTextAlign('left'); } }); }
function drawBarPointText(points, series, config, context, opts) { // 绘制数据文案
var data = series.data; var textOffset = series.textOffset ? series.textOffset : 0; points.forEach(function(item, index) { if (item !== null) { context.beginPath(); var fontSize = series.textSize ? series.textSize * opts.pix : config.fontSize; context.setFontSize(fontSize); context.setFillStyle(series.textColor || opts.fontColor); var value = data[index] if (typeof data[index] === 'object' && data[index] !== null) { value = data[index].value ; } var formatVal = series.formatter ? series.formatter(value,index,series,opts) : value; context.setTextAlign('left'); context.fillText(String(formatVal), item.x + 4 * opts.pix , item.y + fontSize / 2 - 3 ); context.closePath(); context.stroke(); } }); }
function drawGaugeLabel(gaugeOption, radius, centerPosition, opts, config, context) { radius -= gaugeOption.width / 2 + gaugeOption.labelOffset * opts.pix; radius = radius < 10 ? 10 : radius; let totalAngle; if (gaugeOption.endAngle < gaugeOption.startAngle) { totalAngle = 2 + gaugeOption.endAngle - gaugeOption.startAngle; } else { totalAngle = gaugeOption.startAngle - gaugeOption.endAngle; } let splitAngle = totalAngle / gaugeOption.splitLine.splitNumber; let totalNumber = gaugeOption.endNumber - gaugeOption.startNumber; let splitNumber = totalNumber / gaugeOption.splitLine.splitNumber; let nowAngle = gaugeOption.startAngle; let nowNumber = gaugeOption.startNumber; for (let i = 0; i < gaugeOption.splitLine.splitNumber + 1; i++) { var pos = { x: radius * Math.cos(nowAngle * Math.PI), y: radius * Math.sin(nowAngle * Math.PI) }; var labelText = gaugeOption.formatter ? gaugeOption.formatter(nowNumber,i,opts) : nowNumber; pos.x += centerPosition.x - measureText(labelText, config.fontSize, context) / 2; pos.y += centerPosition.y; var startX = pos.x; var startY = pos.y; context.beginPath(); context.setFontSize(config.fontSize); context.setFillStyle(gaugeOption.labelColor || opts.fontColor); context.fillText(labelText, startX, startY + config.fontSize / 2); context.closePath(); context.stroke(); nowAngle += splitAngle; if (nowAngle >= 2) { nowAngle = nowAngle % 2; } nowNumber += splitNumber; } }
function drawRadarLabel(angleList, radius, centerPosition, opts, config, context) { var radarOption = opts.extra.radar || {}; angleList.forEach(function(angle, index) { if(radarOption.labelPointShow === true && opts.categories[index] !== ''){ var posPoint = { x: radius * Math.cos(angle), y: radius * Math.sin(angle) }; var posPointAxis = convertCoordinateOrigin(posPoint.x, posPoint.y, centerPosition); context.setFillStyle(radarOption.labelPointColor); context.beginPath(); context.arc(posPointAxis.x, posPointAxis.y, radarOption.labelPointRadius * opts.pix, 0, 2 * Math.PI, false); context.closePath(); context.fill(); } if(radarOption.labelShow === true){ var pos = { x: (radius + config.radarLabelTextMargin * opts.pix) * Math.cos(angle), y: (radius + config.radarLabelTextMargin * opts.pix) * Math.sin(angle) }; var posRelativeCanvas = convertCoordinateOrigin(pos.x, pos.y, centerPosition); var startX = posRelativeCanvas.x; var startY = posRelativeCanvas.y; if (util.approximatelyEqual(pos.x, 0)) { startX -= measureText(opts.categories[index] || '', config.fontSize, context) / 2; } else if (pos.x < 0) { startX -= measureText(opts.categories[index] || '', config.fontSize, context); } context.beginPath(); context.setFontSize(config.fontSize); context.setFillStyle(radarOption.labelColor || opts.fontColor); context.fillText(opts.categories[index] || '', startX, startY + config.fontSize / 2); context.closePath(); context.stroke(); } });
}
function drawPieText(series, opts, config, context, radius, center) { var lineRadius = config.pieChartLinePadding; var textObjectCollection = []; var lastTextObject = null; var seriesConvert = series.map(function(item,index) { var text = item.formatter ? item.formatter(item,index,series,opts) : util.toFixed(item._proportion_.toFixed(4) * 100) + '%'; text = item.labelText ? item.labelText : text; var arc = 2 * Math.PI - (item._start_ + 2 * Math.PI * item._proportion_ / 2); if (item._rose_proportion_) { arc = 2 * Math.PI - (item._start_ + 2 * Math.PI * item._rose_proportion_ / 2); } var color = item.color; var radius = item._radius_; return { arc: arc, text: text, color: color, radius: radius, textColor: item.textColor, textSize: item.textSize, labelShow: item.labelShow }; }); for (let i = 0; i < seriesConvert.length; i++) { let item = seriesConvert[i]; // line end
let orginX1 = Math.cos(item.arc) * (item.radius + lineRadius); let orginY1 = Math.sin(item.arc) * (item.radius + lineRadius); // line start
let orginX2 = Math.cos(item.arc) * item.radius; let orginY2 = Math.sin(item.arc) * item.radius; // text start
let orginX3 = orginX1 >= 0 ? orginX1 + config.pieChartTextPadding : orginX1 - config.pieChartTextPadding; let orginY3 = orginY1; let textWidth = measureText(item.text, item.textSize * opts.pix || config.fontSize, context); let startY = orginY3; if (lastTextObject && util.isSameXCoordinateArea(lastTextObject.start, { x: orginX3 })) { if (orginX3 > 0) { startY = Math.min(orginY3, lastTextObject.start.y); } else if (orginX1 < 0) { startY = Math.max(orginY3, lastTextObject.start.y); } else { if (orginY3 > 0) { startY = Math.max(orginY3, lastTextObject.start.y); } else { startY = Math.min(orginY3, lastTextObject.start.y); } } } if (orginX3 < 0) { orginX3 -= textWidth; } let textObject = { lineStart: { x: orginX2, y: orginY2 }, lineEnd: { x: orginX1, y: orginY1 }, start: { x: orginX3, y: startY }, width: textWidth, height: config.fontSize, text: item.text, color: item.color, textColor: item.textColor, textSize: item.textSize }; lastTextObject = avoidCollision(textObject, lastTextObject); textObjectCollection.push(lastTextObject); } for (let i = 0; i < textObjectCollection.length; i++) { if(seriesConvert[i].labelShow === false){ continue; } let item = textObjectCollection[i]; let lineStartPoistion = convertCoordinateOrigin(item.lineStart.x, item.lineStart.y, center); let lineEndPoistion = convertCoordinateOrigin(item.lineEnd.x, item.lineEnd.y, center); let textPosition = convertCoordinateOrigin(item.start.x, item.start.y, center); context.setLineWidth(1 * opts.pix); context.setFontSize(item.textSize * opts.pix || config.fontSize); context.beginPath(); context.setStrokeStyle(item.color); context.setFillStyle(item.color); context.moveTo(lineStartPoistion.x, lineStartPoistion.y); let curveStartX = item.start.x < 0 ? textPosition.x + item.width : textPosition.x; let textStartX = item.start.x < 0 ? textPosition.x - 5 : textPosition.x + 5; context.quadraticCurveTo(lineEndPoistion.x, lineEndPoistion.y, curveStartX, textPosition.y); context.moveTo(lineStartPoistion.x, lineStartPoistion.y); context.stroke(); context.closePath(); context.beginPath(); context.moveTo(textPosition.x + item.width, textPosition.y); context.arc(curveStartX, textPosition.y, 2 * opts.pix, 0, 2 * Math.PI); context.closePath(); context.fill(); context.beginPath(); context.setFontSize(item.textSize * opts.pix || config.fontSize); context.setFillStyle(item.textColor || opts.fontColor); context.fillText(item.text, textStartX, textPosition.y + 3); context.closePath(); context.stroke(); context.closePath(); } }
function drawToolTipSplitLine(offsetX, opts, config, context) { var toolTipOption = opts.extra.tooltip || {}; toolTipOption.gridType = toolTipOption.gridType == undefined ? 'solid' : toolTipOption.gridType; toolTipOption.dashLength = toolTipOption.dashLength == undefined ? 4 : toolTipOption.dashLength; var startY = opts.area[0]; var endY = opts.height - opts.area[2]; if (toolTipOption.gridType == 'dash') { context.setLineDash([toolTipOption.dashLength, toolTipOption.dashLength]); } context.setStrokeStyle(toolTipOption.gridColor || '#cccccc'); context.setLineWidth(1 * opts.pix); context.beginPath(); context.moveTo(offsetX, startY); context.lineTo(offsetX, endY); context.stroke(); context.setLineDash([]); if (toolTipOption.xAxisLabel) { let labelText = opts.categories[opts.tooltip.index]; context.setFontSize(config.fontSize); let textWidth = measureText(labelText, config.fontSize, context); let textX = offsetX - 0.5 * textWidth; let textY = endY + 2 * opts.pix; context.beginPath(); context.setFillStyle(hexToRgb(toolTipOption.labelBgColor || config.toolTipBackground, toolTipOption.labelBgOpacity || config.toolTipOpacity)); context.setStrokeStyle(toolTipOption.labelBgColor || config.toolTipBackground); context.setLineWidth(1 * opts.pix); context.rect(textX - toolTipOption.boxPadding * opts.pix, textY, textWidth + 2 * toolTipOption.boxPadding * opts.pix, config.fontSize + 2 * toolTipOption.boxPadding * opts.pix); context.closePath(); context.stroke(); context.fill(); context.beginPath(); context.setFontSize(config.fontSize); context.setFillStyle(toolTipOption.labelFontColor || opts.fontColor); context.fillText(String(labelText), textX, textY + toolTipOption.boxPadding * opts.pix + config.fontSize); context.closePath(); context.stroke(); } }
function drawMarkLine(opts, config, context) { let markLineOption = assign({}, { type: 'solid', dashLength: 4, data: [] }, opts.extra.markLine); let startX = opts.area[3]; let endX = opts.width - opts.area[1]; let points = calMarkLineData(markLineOption.data, opts); for (let i = 0; i < points.length; i++) { let item = assign({}, { lineColor: '#DE4A42', showLabel: false, labelFontSize: 13, labelPadding: 6, labelFontColor: '#666666', labelBgColor: '#DFE8FF', labelBgOpacity: 0.8, labelAlign: 'left', labelOffsetX: 0, labelOffsetY: 0, }, points[i]); if (markLineOption.type == 'dash') { context.setLineDash([markLineOption.dashLength, markLineOption.dashLength]); } context.setStrokeStyle(item.lineColor); context.setLineWidth(1 * opts.pix); context.beginPath(); context.moveTo(startX, item.y); context.lineTo(endX, item.y); context.stroke(); context.setLineDash([]); if (item.showLabel) { let fontSize = item.labelFontSize * opts.pix; let labelText = item.labelText ? item.labelText : item.value; context.setFontSize(fontSize); let textWidth = measureText(labelText, fontSize, context); let bgWidth = textWidth + item.labelPadding * opts.pix * 2; let bgStartX = item.labelAlign == 'left' ? opts.area[3] - bgWidth : opts.width - opts.area[1]; bgStartX += item.labelOffsetX; let bgStartY = item.y - 0.5 * fontSize - item.labelPadding * opts.pix; bgStartY += item.labelOffsetY; let textX = bgStartX + item.labelPadding * opts.pix; let textY = item.y; context.setFillStyle(hexToRgb(item.labelBgColor, item.labelBgOpacity)); context.setStrokeStyle(item.labelBgColor); context.setLineWidth(1 * opts.pix); context.beginPath(); context.rect(bgStartX, bgStartY, bgWidth, fontSize + 2 * item.labelPadding * opts.pix); context.closePath(); context.stroke(); context.fill(); context.setFontSize(fontSize); context.setTextAlign('left'); context.setFillStyle(item.labelFontColor); context.fillText(String(labelText), textX, bgStartY + fontSize + item.labelPadding * opts.pix/2); context.stroke(); context.setTextAlign('left'); } } }
function drawToolTipHorizentalLine(opts, config, context, eachSpacing, xAxisPoints) { var toolTipOption = assign({}, { gridType: 'solid', dashLength: 4 }, opts.extra.tooltip); var startX = opts.area[3]; var endX = opts.width - opts.area[1]; if (toolTipOption.gridType == 'dash') { context.setLineDash([toolTipOption.dashLength, toolTipOption.dashLength]); } context.setStrokeStyle(toolTipOption.gridColor || '#cccccc'); context.setLineWidth(1 * opts.pix); context.beginPath(); context.moveTo(startX, opts.tooltip.offset.y); context.lineTo(endX, opts.tooltip.offset.y); context.stroke(); context.setLineDash([]); if (toolTipOption.yAxisLabel) { let boxPadding = toolTipOption.boxPadding * opts.pix; let labelText = calTooltipYAxisData(opts.tooltip.offset.y, opts.series, opts, config, eachSpacing); let widthArr = opts.chartData.yAxisData.yAxisWidth; let tStartLeft = opts.area[3]; let tStartRight = opts.width - opts.area[1]; for (let i = 0; i < labelText.length; i++) { context.setFontSize(toolTipOption.fontSize * opts.pix); let textWidth = measureText(labelText[i], toolTipOption.fontSize * opts.pix, context); let bgStartX, bgEndX, bgWidth; if (widthArr[i].position == 'left') { bgStartX = tStartLeft - (textWidth + boxPadding * 2) - 2 * opts.pix; bgEndX = Math.max(bgStartX, bgStartX + textWidth + boxPadding * 2); } else { bgStartX = tStartRight + 2 * opts.pix; bgEndX = Math.max(bgStartX + widthArr[i].width, bgStartX + textWidth + boxPadding * 2); } bgWidth = bgEndX - bgStartX; let textX = bgStartX + (bgWidth - textWidth) / 2; let textY = opts.tooltip.offset.y; context.beginPath(); context.setFillStyle(hexToRgb(toolTipOption.labelBgColor || config.toolTipBackground, toolTipOption.labelBgOpacity || config.toolTipOpacity)); context.setStrokeStyle(toolTipOption.labelBgColor || config.toolTipBackground); context.setLineWidth(1 * opts.pix); context.rect(bgStartX, textY - 0.5 * config.fontSize - boxPadding, bgWidth, config.fontSize + 2 * boxPadding); context.closePath(); context.stroke(); context.fill(); context.beginPath(); context.setFontSize(config.fontSize); context.setFillStyle(toolTipOption.labelFontColor || opts.fontColor); context.fillText(labelText[i], textX, textY + 0.5 * config.fontSize); context.closePath(); context.stroke(); if (widthArr[i].position == 'left') { tStartLeft -= (widthArr[i].width + opts.yAxis.padding * opts.pix); } else { tStartRight += widthArr[i].width + opts.yAxis.padding * opts.pix; } } } }
function drawToolTipSplitArea(offsetX, opts, config, context, eachSpacing) { var toolTipOption = assign({}, { activeBgColor: '#000000', activeBgOpacity: 0.08, activeWidth: eachSpacing }, opts.extra.column); toolTipOption.activeWidth = toolTipOption.activeWidth > eachSpacing ? eachSpacing : toolTipOption.activeWidth; var startY = opts.area[0]; var endY = opts.height - opts.area[2]; context.beginPath(); context.setFillStyle(hexToRgb(toolTipOption.activeBgColor, toolTipOption.activeBgOpacity)); context.rect(offsetX - toolTipOption.activeWidth / 2, startY, toolTipOption.activeWidth, endY - startY); context.closePath(); context.fill(); context.setFillStyle("#FFFFFF"); }
function drawBarToolTipSplitArea(offsetX, opts, config, context, eachSpacing) { var toolTipOption = assign({}, { activeBgColor: '#000000', activeBgOpacity: 0.08 }, opts.extra.bar); var startX = opts.area[3]; var endX = opts.width - opts.area[1]; context.beginPath(); context.setFillStyle(hexToRgb(toolTipOption.activeBgColor, toolTipOption.activeBgOpacity)); context.rect( startX ,offsetX - eachSpacing / 2 , endX - startX,eachSpacing); context.closePath(); context.fill(); context.setFillStyle("#FFFFFF"); }
function drawToolTip(textList, offset, opts, config, context, eachSpacing, xAxisPoints) { var toolTipOption = assign({}, { showBox: true, showArrow: true, showCategory: false, bgColor: '#000000', bgOpacity: 0.7, borderColor: '#000000', borderWidth: 0, borderRadius: 0, borderOpacity: 0.7, boxPadding: 3, fontColor: '#FFFFFF', fontSize: 13, lineHeight: 20, legendShow: true, legendShape: 'auto', splitLine: true, }, opts.extra.tooltip); if(toolTipOption.showCategory==true && opts.categories){ textList.unshift({text:opts.categories[opts.tooltip.index],color:null}) } var fontSize = toolTipOption.fontSize * opts.pix; var lineHeight = toolTipOption.lineHeight * opts.pix; var boxPadding = toolTipOption.boxPadding * opts.pix; var legendWidth = fontSize; var legendMarginRight = 5 * opts.pix; if(toolTipOption.legendShow == false){ legendWidth = 0; legendMarginRight = 0; } var arrowWidth = toolTipOption.showArrow ? 8 * opts.pix : 0; var isOverRightBorder = false; if (opts.type == 'line' || opts.type == 'mount' || opts.type == 'area' || opts.type == 'candle' || opts.type == 'mix') { if (toolTipOption.splitLine == true) { drawToolTipSplitLine(opts.tooltip.offset.x, opts, config, context); } } offset = assign({ x: 0, y: 0 }, offset); offset.y -= 8 * opts.pix; var textWidth = textList.map(function(item) { return measureText(item.text, fontSize, context); }); var toolTipWidth = legendWidth + legendMarginRight + 4 * boxPadding + Math.max.apply(null, textWidth); var toolTipHeight = 2 * boxPadding + textList.length * lineHeight; if (toolTipOption.showBox == false) { return } // if beyond the right border
if (offset.x - Math.abs(opts._scrollDistance_ || 0) + arrowWidth + toolTipWidth > opts.width) { isOverRightBorder = true; } if (toolTipHeight + offset.y > opts.height) { offset.y = opts.height - toolTipHeight; } // draw background rect
context.beginPath(); context.setFillStyle(hexToRgb(toolTipOption.bgColor, toolTipOption.bgOpacity)); context.setLineWidth(toolTipOption.borderWidth * opts.pix); context.setStrokeStyle(hexToRgb(toolTipOption.borderColor, toolTipOption.borderOpacity)); var radius = toolTipOption.borderRadius; if (isOverRightBorder) { // 增加左侧仍然超出的判断
if(toolTipWidth + arrowWidth > opts.width){ offset.x = opts.width + Math.abs(opts._scrollDistance_ || 0) + arrowWidth + (toolTipWidth - opts.width) } if(toolTipWidth > offset.x){ offset.x = opts.width + Math.abs(opts._scrollDistance_ || 0) + arrowWidth + (toolTipWidth - opts.width) } if (toolTipOption.showArrow) { context.moveTo(offset.x, offset.y + 10 * opts.pix); context.lineTo(offset.x - arrowWidth, offset.y + 10 * opts.pix + 5 * opts.pix); } context.arc(offset.x - arrowWidth - radius, offset.y + toolTipHeight - radius, radius, 0, Math.PI / 2, false); context.arc(offset.x - arrowWidth - Math.round(toolTipWidth) + radius, offset.y + toolTipHeight - radius, radius, Math.PI / 2, Math.PI, false); context.arc(offset.x - arrowWidth - Math.round(toolTipWidth) + radius, offset.y + radius, radius, -Math.PI, -Math.PI / 2, false); context.arc(offset.x - arrowWidth - radius, offset.y + radius, radius, -Math.PI / 2, 0, false); if (toolTipOption.showArrow) { context.lineTo(offset.x - arrowWidth, offset.y + 10 * opts.pix - 5 * opts.pix); context.lineTo(offset.x, offset.y + 10 * opts.pix); } } else { if (toolTipOption.showArrow) { context.moveTo(offset.x, offset.y + 10 * opts.pix); context.lineTo(offset.x + arrowWidth, offset.y + 10 * opts.pix - 5 * opts.pix); } context.arc(offset.x + arrowWidth + radius, offset.y + radius, radius, -Math.PI, -Math.PI / 2, false); context.arc(offset.x + arrowWidth + Math.round(toolTipWidth) - radius, offset.y + radius, radius, -Math.PI / 2, 0, false); context.arc(offset.x + arrowWidth + Math.round(toolTipWidth) - radius, offset.y + toolTipHeight - radius, radius, 0, Math.PI / 2, false); context.arc(offset.x + arrowWidth + radius, offset.y + toolTipHeight - radius, radius, Math.PI / 2, Math.PI, false); if (toolTipOption.showArrow) { context.lineTo(offset.x + arrowWidth, offset.y + 10 * opts.pix + 5 * opts.pix); context.lineTo(offset.x, offset.y + 10 * opts.pix); } } context.closePath(); context.fill(); if (toolTipOption.borderWidth > 0) { context.stroke(); } // draw legend
if(toolTipOption.legendShow){ textList.forEach(function(item, index) { if (item.color !== null) { context.beginPath(); context.setFillStyle(item.color); var startX = offset.x + arrowWidth + 2 * boxPadding; var startY = offset.y + (lineHeight - fontSize) / 2 + lineHeight * index + boxPadding + 1; if (isOverRightBorder) { startX = offset.x - toolTipWidth - arrowWidth + 2 * boxPadding; } switch (item.legendShape) { case 'line': context.moveTo(startX, startY + 0.5 * legendWidth - 2 * opts.pix); context.fillRect(startX, startY + 0.5 * legendWidth - 2 * opts.pix, legendWidth, 4 * opts.pix); break; case 'triangle': context.moveTo(startX + 7.5 * opts.pix, startY + 0.5 * legendWidth - 5 * opts.pix); context.lineTo(startX + 2.5 * opts.pix, startY + 0.5 * legendWidth + 5 * opts.pix); context.lineTo(startX + 12.5 * opts.pix, startY + 0.5 * legendWidth + 5 * opts.pix); context.lineTo(startX + 7.5 * opts.pix, startY + 0.5 * legendWidth - 5 * opts.pix); break; case 'diamond': context.moveTo(startX + 7.5 * opts.pix, startY + 0.5 * legendWidth - 5 * opts.pix); context.lineTo(startX + 2.5 * opts.pix, startY + 0.5 * legendWidth); context.lineTo(startX + 7.5 * opts.pix, startY + 0.5 * legendWidth + 5 * opts.pix); context.lineTo(startX + 12.5 * opts.pix, startY + 0.5 * legendWidth); context.lineTo(startX + 7.5 * opts.pix, startY + 0.5 * legendWidth - 5 * opts.pix); break; case 'circle': context.moveTo(startX + 7.5 * opts.pix, startY + 0.5 * legendWidth); context.arc(startX + 7.5 * opts.pix, startY + 0.5 * legendWidth, 5 * opts.pix, 0, 2 * Math.PI); break; case 'rect': context.moveTo(startX, startY + 0.5 * legendWidth - 5 * opts.pix); context.fillRect(startX, startY + 0.5 * legendWidth - 5 * opts.pix, 15 * opts.pix, 10 * opts.pix); break; case 'square': context.moveTo(startX + 2 * opts.pix, startY + 0.5 * legendWidth - 5 * opts.pix); context.fillRect(startX + 2 * opts.pix, startY + 0.5 * legendWidth - 5 * opts.pix, 10 * opts.pix, 10 * opts.pix); break; default: context.moveTo(startX, startY + 0.5 * legendWidth - 5 * opts.pix); context.fillRect(startX, startY + 0.5 * legendWidth - 5 * opts.pix, 15 * opts.pix, 10 * opts.pix); } context.closePath(); context.fill(); } }); } // draw text list
textList.forEach(function(item, index) { var startX = offset.x + arrowWidth + 2 * boxPadding + legendWidth + legendMarginRight; if (isOverRightBorder) { startX = offset.x - toolTipWidth - arrowWidth + 2 * boxPadding + legendWidth + legendMarginRight; } var startY = offset.y + lineHeight * index + (lineHeight - fontSize)/2 - 1 + boxPadding + fontSize; context.beginPath(); context.setFontSize(fontSize); context.setTextBaseline('normal'); context.setFillStyle(toolTipOption.fontColor); context.fillText(item.text, startX, startY); context.closePath(); context.stroke(); }); }
function drawColumnDataPoints(series, opts, config, context) { let process = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 1; let xAxisData = opts.chartData.xAxisData, xAxisPoints = xAxisData.xAxisPoints, eachSpacing = xAxisData.eachSpacing; let columnOption = assign({}, { type: 'group', width: eachSpacing / 2, meterBorder: 4, meterFillColor: '#FFFFFF', barBorderCircle: false, barBorderRadius: [], seriesGap: 2, linearType: 'none', linearOpacity: 1, customColor: [], colorStop: 0, labelPosition: 'outside' }, opts.extra.column); let calPoints = []; context.save(); let leftNum = -2; let rightNum = xAxisPoints.length + 2; if (opts._scrollDistance_ && opts._scrollDistance_ !== 0 && opts.enableScroll === true) { context.translate(opts._scrollDistance_, 0); leftNum = Math.floor(-opts._scrollDistance_ / eachSpacing) - 2; rightNum = leftNum + opts.xAxis.itemCount + 4; } if (opts.tooltip && opts.tooltip.textList && opts.tooltip.textList.length && process === 1) { drawToolTipSplitArea(opts.tooltip.offset.x, opts, config, context, eachSpacing); } columnOption.customColor = fillCustomColor(columnOption.linearType, columnOption.customColor, series, config); series.forEach(function(eachSeries, seriesIndex) { let ranges, minRange, maxRange; ranges = [].concat(opts.chartData.yAxisData.ranges[eachSeries.index]); minRange = ranges.pop(); maxRange = ranges.shift(); // 计算0轴坐标
let spacingValid = opts.height - opts.area[0] - opts.area[2]; let zeroHeight = spacingValid * (0 - minRange) / (maxRange - minRange); let zeroPoints = opts.height - Math.round(zeroHeight) - opts.area[2]; eachSeries.zeroPoints = zeroPoints; var data = eachSeries.data; switch (columnOption.type) { case 'group': var points = getColumnDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config, zeroPoints, process); var tooltipPoints = getStackDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config, seriesIndex, series, process); calPoints.push(tooltipPoints); points = fixColumeData(points, eachSpacing, series.length, seriesIndex, config, opts); for (let i = 0; i < points.length; i++) { let item = points[i]; //fix issues/I27B1N yyoinge & Joeshu
if (item !== null && i > leftNum && i < rightNum) { var startX = item.x - item.width / 2; var height = opts.height - item.y - opts.area[2]; context.beginPath(); var fillColor = item.color || eachSeries.color var strokeColor = item.color || eachSeries.color if (columnOption.linearType !== 'none') { var grd = context.createLinearGradient(startX, item.y, startX, zeroPoints); //透明渐变
if (columnOption.linearType == 'opacity') { grd.addColorStop(0, hexToRgb(fillColor, columnOption.linearOpacity)); grd.addColorStop(1, hexToRgb(fillColor, 1)); } else { grd.addColorStop(0, hexToRgb(columnOption.customColor[eachSeries.linearIndex], columnOption.linearOpacity)); grd.addColorStop(columnOption.colorStop, hexToRgb(columnOption.customColor[eachSeries.linearIndex],columnOption.linearOpacity)); grd.addColorStop(1, hexToRgb(fillColor, 1)); } fillColor = grd } // 圆角边框
if ((columnOption.barBorderRadius && columnOption.barBorderRadius.length === 4) || columnOption.barBorderCircle === true) { const left = startX; const top = item.y > zeroPoints ? zeroPoints : item.y; const width = item.width; const height = Math.abs(zeroPoints - item.y); if (columnOption.barBorderCircle) { columnOption.barBorderRadius = [width / 2, width / 2, 0, 0]; } if(item.y > zeroPoints){ columnOption.barBorderRadius = [0, 0,width / 2, width / 2]; } let [r0, r1, r2, r3] = columnOption.barBorderRadius; let minRadius = Math.min(width/2,height/2); r0 = r0 > minRadius ? minRadius : r0; r1 = r1 > minRadius ? minRadius : r1; r2 = r2 > minRadius ? minRadius : r2; r3 = r3 > minRadius ? minRadius : r3; r0 = r0 < 0 ? 0 : r0; r1 = r1 < 0 ? 0 : r1; r2 = r2 < 0 ? 0 : r2; r3 = r3 < 0 ? 0 : r3; context.arc(left + r0, top + r0, r0, -Math.PI, -Math.PI / 2); context.arc(left + width - r1, top + r1, r1, -Math.PI / 2, 0); context.arc(left + width - r2, top + height - r2, r2, 0, Math.PI / 2); context.arc(left + r3, top + height - r3, r3, Math.PI / 2, Math.PI); } else { context.moveTo(startX, item.y); context.lineTo(startX + item.width, item.y); context.lineTo(startX + item.width, zeroPoints); context.lineTo(startX, zeroPoints); context.lineTo(startX, item.y); context.setLineWidth(1) context.setStrokeStyle(strokeColor); } context.setFillStyle(fillColor); context.closePath(); //context.stroke();
context.fill(); } }; break; case 'stack': // 绘制堆叠数据图
var points = getStackDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config, seriesIndex, series, process); calPoints.push(points); points = fixColumeStackData(points, eachSpacing, series.length, seriesIndex, config, opts, series); for (let i = 0; i < points.length; i++) { let item = points[i]; if (item !== null && i > leftNum && i < rightNum) { context.beginPath(); var fillColor = item.color || eachSeries.color; var startX = item.x - item.width / 2 + 1; var height = opts.height - item.y - opts.area[2]; var height0 = opts.height - item.y0 - opts.area[2]; if (seriesIndex > 0) { height -= height0; } context.setFillStyle(fillColor); context.moveTo(startX, item.y); context.fillRect(startX, item.y, item.width, height); context.closePath(); context.fill(); } }; break; case 'meter': // 绘制温度计数据图
var points = getDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config, process); calPoints.push(points); points = fixColumeMeterData(points, eachSpacing, series.length, seriesIndex, config, opts, columnOption.meterBorder); for (let i = 0; i < points.length; i++) { let item = points[i]; if (item !== null && i > leftNum && i < rightNum) { //画背景颜色
context.beginPath(); if (seriesIndex == 0 && columnOption.meterBorder > 0) { context.setStrokeStyle(eachSeries.color); context.setLineWidth(columnOption.meterBorder * opts.pix); } if(seriesIndex == 0){ context.setFillStyle(columnOption.meterFillColor); }else{ context.setFillStyle(item.color || eachSeries.color); } var startX = item.x - item.width / 2; var height = opts.height - item.y - opts.area[2]; if ((columnOption.barBorderRadius && columnOption.barBorderRadius.length === 4) || columnOption.barBorderCircle === true) { const left = startX; const top = item.y; const width = item.width; const height = zeroPoints - item.y; if (columnOption.barBorderCircle) { columnOption.barBorderRadius = [width / 2, width / 2, 0, 0]; } let [r0, r1, r2, r3] = columnOption.barBorderRadius; let minRadius = Math.min(width/2,height/2); r0 = r0 > minRadius ? minRadius : r0; r1 = r1 > minRadius ? minRadius : r1; r2 = r2 > minRadius ? minRadius : r2; r3 = r3 > minRadius ? minRadius : r3; r0 = r0 < 0 ? 0 : r0; r1 = r1 < 0 ? 0 : r1; r2 = r2 < 0 ? 0 : r2; r3 = r3 < 0 ? 0 : r3; context.arc(left + r0, top + r0, r0, -Math.PI, -Math.PI / 2); context.arc(left + width - r1, top + r1, r1, -Math.PI / 2, 0); context.arc(left + width - r2, top + height - r2, r2, 0, Math.PI / 2); context.arc(left + r3, top + height - r3, r3, Math.PI / 2, Math.PI); context.fill(); }else{ context.moveTo(startX, item.y); context.lineTo(startX + item.width, item.y); context.lineTo(startX + item.width, zeroPoints); context.lineTo(startX, zeroPoints); context.lineTo(startX, item.y); context.fill(); } if (seriesIndex == 0 && columnOption.meterBorder > 0) { context.closePath(); context.stroke(); } } } break; } });
if (opts.dataLabel !== false && process === 1) { series.forEach(function(eachSeries, seriesIndex) { let ranges, minRange, maxRange; ranges = [].concat(opts.chartData.yAxisData.ranges[eachSeries.index]); minRange = ranges.pop(); maxRange = ranges.shift(); var data = eachSeries.data; switch (columnOption.type) { case 'group': var points = getColumnDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config, process); points = fixColumeData(points, eachSpacing, series.length, seriesIndex, config, opts); drawColumePointText(points, eachSeries, config, context, opts); break; case 'stack': var points = getStackDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config, seriesIndex, series, process); drawColumePointText(points, eachSeries, config, context, opts); break; case 'meter': var points = getDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config, process); drawColumePointText(points, eachSeries, config, context, opts); break; } }); } context.restore(); return { xAxisPoints: xAxisPoints, calPoints: calPoints, eachSpacing: eachSpacing }; }
function drawMountDataPoints(series, opts, config, context) { let process = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 1; let xAxisData = opts.chartData.xAxisData, xAxisPoints = xAxisData.xAxisPoints, eachSpacing = xAxisData.eachSpacing; let mountOption = assign({}, { type: 'mount', widthRatio: 1, borderWidth: 1, barBorderCircle: false, barBorderRadius: [], linearType: 'none', linearOpacity: 1, customColor: [], colorStop: 0, }, opts.extra.mount); mountOption.widthRatio = mountOption.widthRatio <= 0 ? 0 : mountOption.widthRatio; mountOption.widthRatio = mountOption.widthRatio >= 2 ? 2 : mountOption.widthRatio; let calPoints = []; context.save(); let leftNum = -2; let rightNum = xAxisPoints.length + 2; if (opts._scrollDistance_ && opts._scrollDistance_ !== 0 && opts.enableScroll === true) { context.translate(opts._scrollDistance_, 0); leftNum = Math.floor(-opts._scrollDistance_ / eachSpacing) - 2; rightNum = leftNum + opts.xAxis.itemCount + 4; } mountOption.customColor = fillCustomColor(mountOption.linearType, mountOption.customColor, series, config); let ranges, minRange, maxRange; ranges = [].concat(opts.chartData.yAxisData.ranges[0]); minRange = ranges.pop(); maxRange = ranges.shift(); // 计算0轴坐标
let spacingValid = opts.height - opts.area[0] - opts.area[2]; let zeroHeight = spacingValid * (0 - minRange) / (maxRange - minRange); let zeroPoints = opts.height - Math.round(zeroHeight) - opts.area[2]; var points = getMountDataPoints(series, minRange, maxRange, xAxisPoints, eachSpacing, opts, mountOption, zeroPoints, process); switch (mountOption.type) { case 'bar': for (let i = 0; i < points.length; i++) { let item = points[i]; if (item !== null && i > leftNum && i < rightNum) { var startX = item.x - eachSpacing*mountOption.widthRatio/2; var height = opts.height - item.y - opts.area[2]; context.beginPath(); var fillColor = item.color || series[i].color var strokeColor = item.color || series[i].color if (mountOption.linearType !== 'none') { var grd = context.createLinearGradient(startX, item.y, startX, zeroPoints); //透明渐变
if (mountOption.linearType == 'opacity') { grd.addColorStop(0, hexToRgb(fillColor, mountOption.linearOpacity)); grd.addColorStop(1, hexToRgb(fillColor, 1)); } else { grd.addColorStop(0, hexToRgb(mountOption.customColor[series[i].linearIndex], mountOption.linearOpacity)); grd.addColorStop(mountOption.colorStop, hexToRgb(mountOption.customColor[series[i].linearIndex],mountOption.linearOpacity)); grd.addColorStop(1, hexToRgb(fillColor, 1)); } fillColor = grd } // 圆角边框
if ((mountOption.barBorderRadius && mountOption.barBorderRadius.length === 4) || mountOption.barBorderCircle === true) { const left = startX; const top = item.y > zeroPoints ? zeroPoints : item.y; const width = item.width; const height = Math.abs(zeroPoints - item.y); if (mountOption.barBorderCircle) { mountOption.barBorderRadius = [width / 2, width / 2, 0, 0]; } if(item.y > zeroPoints){ mountOption.barBorderRadius = [0, 0,width / 2, width / 2]; } let [r0, r1, r2, r3] = mountOption.barBorderRadius; let minRadius = Math.min(width/2,height/2); r0 = r0 > minRadius ? minRadius : r0; r1 = r1 > minRadius ? minRadius : r1; r2 = r2 > minRadius ? minRadius : r2; r3 = r3 > minRadius ? minRadius : r3; r0 = r0 < 0 ? 0 : r0; r1 = r1 < 0 ? 0 : r1; r2 = r2 < 0 ? 0 : r2; r3 = r3 < 0 ? 0 : r3; context.arc(left + r0, top + r0, r0, -Math.PI, -Math.PI / 2); context.arc(left + width - r1, top + r1, r1, -Math.PI / 2, 0); context.arc(left + width - r2, top + height - r2, r2, 0, Math.PI / 2); context.arc(left + r3, top + height - r3, r3, Math.PI / 2, Math.PI); } else { context.moveTo(startX, item.y); context.lineTo(startX + item.width, item.y); context.lineTo(startX + item.width, zeroPoints); context.lineTo(startX, zeroPoints); context.lineTo(startX, item.y); } context.setStrokeStyle(strokeColor); context.setFillStyle(fillColor); if(mountOption.borderWidth > 0){ context.setLineWidth(mountOption.borderWidth * opts.pix); context.closePath(); context.stroke(); } context.fill(); } }; break; case 'triangle': for (let i = 0; i < points.length; i++) { let item = points[i]; if (item !== null && i > leftNum && i < rightNum) { var startX = item.x - eachSpacing*mountOption.widthRatio/2; var height = opts.height - item.y - opts.area[2]; context.beginPath(); var fillColor = item.color || series[i].color var strokeColor = item.color || series[i].color if (mountOption.linearType !== 'none') { var grd = context.createLinearGradient(startX, item.y, startX, zeroPoints); //透明渐变
if (mountOption.linearType == 'opacity') { grd.addColorStop(0, hexToRgb(fillColor, mountOption.linearOpacity)); grd.addColorStop(1, hexToRgb(fillColor, 1)); } else { grd.addColorStop(0, hexToRgb(mountOption.customColor[series[i].linearIndex], mountOption.linearOpacity)); grd.addColorStop(mountOption.colorStop, hexToRgb(mountOption.customColor[series[i].linearIndex],mountOption.linearOpacity)); grd.addColorStop(1, hexToRgb(fillColor, 1)); } fillColor = grd } context.moveTo(startX, zeroPoints); context.lineTo(item.x, item.y); context.lineTo(startX + item.width, zeroPoints); context.setStrokeStyle(strokeColor); context.setFillStyle(fillColor); if(mountOption.borderWidth > 0){ context.setLineWidth(mountOption.borderWidth * opts.pix); context.stroke(); } context.fill(); } }; break; case 'mount': for (let i = 0; i < points.length; i++) { let item = points[i]; if (item !== null && i > leftNum && i < rightNum) { var startX = item.x - eachSpacing*mountOption.widthRatio/2; var height = opts.height - item.y - opts.area[2]; context.beginPath(); var fillColor = item.color || series[i].color var strokeColor = item.color || series[i].color if (mountOption.linearType !== 'none') { var grd = context.createLinearGradient(startX, item.y, startX, zeroPoints); //透明渐变
if (mountOption.linearType == 'opacity') { grd.addColorStop(0, hexToRgb(fillColor, mountOption.linearOpacity)); grd.addColorStop(1, hexToRgb(fillColor, 1)); } else { grd.addColorStop(0, hexToRgb(mountOption.customColor[series[i].linearIndex], mountOption.linearOpacity)); grd.addColorStop(mountOption.colorStop, hexToRgb(mountOption.customColor[series[i].linearIndex],mountOption.linearOpacity)); grd.addColorStop(1, hexToRgb(fillColor, 1)); } fillColor = grd } context.moveTo(startX, zeroPoints); context.bezierCurveTo(item.x - item.width/4, zeroPoints, item.x - item.width/4, item.y, item.x, item.y); context.bezierCurveTo(item.x + item.width/4, item.y, item.x + item.width/4, zeroPoints, startX + item.width, zeroPoints); context.setStrokeStyle(strokeColor); context.setFillStyle(fillColor); if(mountOption.borderWidth > 0){ context.setLineWidth(mountOption.borderWidth * opts.pix); context.stroke(); } context.fill(); } }; break; case 'sharp': for (let i = 0; i < points.length; i++) { let item = points[i]; if (item !== null && i > leftNum && i < rightNum) { var startX = item.x - eachSpacing*mountOption.widthRatio/2; var height = opts.height - item.y - opts.area[2]; context.beginPath(); var fillColor = item.color || series[i].color var strokeColor = item.color || series[i].color if (mountOption.linearType !== 'none') { var grd = context.createLinearGradient(startX, item.y, startX, zeroPoints); //透明渐变
if (mountOption.linearType == 'opacity') { grd.addColorStop(0, hexToRgb(fillColor, mountOption.linearOpacity)); grd.addColorStop(1, hexToRgb(fillColor, 1)); } else { grd.addColorStop(0, hexToRgb(mountOption.customColor[series[i].linearIndex], mountOption.linearOpacity)); grd.addColorStop(mountOption.colorStop, hexToRgb(mountOption.customColor[series[i].linearIndex],mountOption.linearOpacity)); grd.addColorStop(1, hexToRgb(fillColor, 1)); } fillColor = grd } context.moveTo(startX, zeroPoints); context.quadraticCurveTo(item.x - 0, zeroPoints - height/4, item.x, item.y); context.quadraticCurveTo(item.x + 0, zeroPoints - height/4, startX + item.width, zeroPoints) context.setStrokeStyle(strokeColor); context.setFillStyle(fillColor); if(mountOption.borderWidth > 0){ context.setLineWidth(mountOption.borderWidth * opts.pix); context.stroke(); } context.fill(); } }; break; }
if (opts.dataLabel !== false && process === 1) { let ranges, minRange, maxRange; ranges = [].concat(opts.chartData.yAxisData.ranges[0]); minRange = ranges.pop(); maxRange = ranges.shift(); var points = getMountDataPoints(series, minRange, maxRange, xAxisPoints, eachSpacing, opts, mountOption, zeroPoints, process); drawMountPointText(points, series, config, context, opts, zeroPoints); } context.restore(); return { xAxisPoints: xAxisPoints, calPoints: points, eachSpacing: eachSpacing }; }
function drawBarDataPoints(series, opts, config, context) { let process = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 1; let yAxisPoints = []; let eachSpacing = (opts.height - opts.area[0] - opts.area[2])/opts.categories.length; for (let i = 0; i < opts.categories.length; i++) { yAxisPoints.push(opts.area[0] + eachSpacing / 2 + eachSpacing * i); } let columnOption = assign({}, { type: 'group', width: eachSpacing / 2, meterBorder: 4, meterFillColor: '#FFFFFF', barBorderCircle: false, barBorderRadius: [], seriesGap: 2, linearType: 'none', linearOpacity: 1, customColor: [], colorStop: 0, }, opts.extra.bar); let calPoints = []; context.save(); let leftNum = -2; let rightNum = yAxisPoints.length + 2; if (opts.tooltip && opts.tooltip.textList && opts.tooltip.textList.length && process === 1) { drawBarToolTipSplitArea(opts.tooltip.offset.y, opts, config, context, eachSpacing); } columnOption.customColor = fillCustomColor(columnOption.linearType, columnOption.customColor, series, config); series.forEach(function(eachSeries, seriesIndex) { let ranges, minRange, maxRange; ranges = [].concat(opts.chartData.xAxisData.ranges); maxRange = ranges.pop(); minRange = ranges.shift(); var data = eachSeries.data; switch (columnOption.type) { case 'group': var points = getBarDataPoints(data, minRange, maxRange, yAxisPoints, eachSpacing, opts, config, process); var tooltipPoints = getBarStackDataPoints(data, minRange, maxRange, yAxisPoints, eachSpacing, opts, config, seriesIndex, series, process); calPoints.push(tooltipPoints); points = fixBarData(points, eachSpacing, series.length, seriesIndex, config, opts); for (let i = 0; i < points.length; i++) { let item = points[i]; //fix issues/I27B1N yyoinge & Joeshu
if (item !== null && i > leftNum && i < rightNum) { //var startX = item.x - item.width / 2;
var startX = opts.area[3]; var startY = item.y - item.width / 2; var height = item.height; context.beginPath(); var fillColor = item.color || eachSeries.color var strokeColor = item.color || eachSeries.color if (columnOption.linearType !== 'none') { var grd = context.createLinearGradient(startX, item.y, item.x, item.y); //透明渐变
if (columnOption.linearType == 'opacity') { grd.addColorStop(0, hexToRgb(fillColor, columnOption.linearOpacity)); grd.addColorStop(1, hexToRgb(fillColor, 1)); } else { grd.addColorStop(0, hexToRgb(columnOption.customColor[eachSeries.linearIndex], columnOption.linearOpacity)); grd.addColorStop(columnOption.colorStop, hexToRgb(columnOption.customColor[eachSeries.linearIndex],columnOption.linearOpacity)); grd.addColorStop(1, hexToRgb(fillColor, 1)); } fillColor = grd } // 圆角边框
if ((columnOption.barBorderRadius && columnOption.barBorderRadius.length === 4) || columnOption.barBorderCircle === true) { const left = startX; const width = item.width; const top = item.y - item.width / 2; const height = item.height; if (columnOption.barBorderCircle) { columnOption.barBorderRadius = [width / 2, width / 2, 0, 0]; } let [r0, r1, r2, r3] = columnOption.barBorderRadius; let minRadius = Math.min(width/2,height/2); r0 = r0 > minRadius ? minRadius : r0; r1 = r1 > minRadius ? minRadius : r1; r2 = r2 > minRadius ? minRadius : r2; r3 = r3 > minRadius ? minRadius : r3; r0 = r0 < 0 ? 0 : r0; r1 = r1 < 0 ? 0 : r1; r2 = r2 < 0 ? 0 : r2; r3 = r3 < 0 ? 0 : r3; context.arc(left + r3, top + r3, r3, -Math.PI, -Math.PI / 2); context.arc(item.x - r0, top + r0, r0, -Math.PI / 2, 0); context.arc(item.x - r1, top + width - r1, r1, 0, Math.PI / 2); context.arc(left + r2, top + width - r2, r2, Math.PI / 2, Math.PI); } else { context.moveTo(startX, startY); context.lineTo(item.x, startY); context.lineTo(item.x, startY + item.width); context.lineTo(startX, startY + item.width); context.lineTo(startX, startY); context.setLineWidth(1) context.setStrokeStyle(strokeColor); } context.setFillStyle(fillColor); context.closePath(); //context.stroke();
context.fill(); } }; break; case 'stack': // 绘制堆叠数据图
var points = getBarStackDataPoints(data, minRange, maxRange, yAxisPoints, eachSpacing, opts, config, seriesIndex, series, process); calPoints.push(points); points = fixBarStackData(points, eachSpacing, series.length, seriesIndex, config, opts, series); for (let i = 0; i < points.length; i++) { let item = points[i]; if (item !== null && i > leftNum && i < rightNum) { context.beginPath(); var fillColor = item.color || eachSeries.color; var startX = item.x0; context.setFillStyle(fillColor); context.moveTo(startX, item.y - item.width/2); context.fillRect(startX, item.y - item.width/2, item.height , item.width); context.closePath(); context.fill(); } }; break; } });
if (opts.dataLabel !== false && process === 1) { series.forEach(function(eachSeries, seriesIndex) { let ranges, minRange, maxRange; ranges = [].concat(opts.chartData.xAxisData.ranges); maxRange = ranges.pop(); minRange = ranges.shift(); var data = eachSeries.data; switch (columnOption.type) { case 'group': var points = getBarDataPoints(data, minRange, maxRange, yAxisPoints, eachSpacing, opts, config, process); points = fixBarData(points, eachSpacing, series.length, seriesIndex, config, opts); drawBarPointText(points, eachSeries, config, context, opts); break; case 'stack': var points = getBarStackDataPoints(data, minRange, maxRange, yAxisPoints, eachSpacing, opts, config, seriesIndex, series, process); drawBarPointText(points, eachSeries, config, context, opts); break; } }); } return { yAxisPoints: yAxisPoints, calPoints: calPoints, eachSpacing: eachSpacing }; }
function drawCandleDataPoints(series, seriesMA, opts, config, context) { var process = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : 1; var candleOption = assign({}, { color: {}, average: {} }, opts.extra.candle); candleOption.color = assign({}, { upLine: '#f04864', upFill: '#f04864', downLine: '#2fc25b', downFill: '#2fc25b' }, candleOption.color); candleOption.average = assign({}, { show: false, name: [], day: [], color: config.color }, candleOption.average); opts.extra.candle = candleOption; let xAxisData = opts.chartData.xAxisData, xAxisPoints = xAxisData.xAxisPoints, eachSpacing = xAxisData.eachSpacing; let calPoints = []; context.save(); let leftNum = -2; let rightNum = xAxisPoints.length + 2; let leftSpace = 0; let rightSpace = opts.width + eachSpacing; if (opts._scrollDistance_ && opts._scrollDistance_ !== 0 && opts.enableScroll === true) { context.translate(opts._scrollDistance_, 0); leftNum = Math.floor(-opts._scrollDistance_ / eachSpacing) - 2; rightNum = leftNum + opts.xAxis.itemCount + 4; leftSpace = -opts._scrollDistance_ - eachSpacing * 2 + opts.area[3]; rightSpace = leftSpace + (opts.xAxis.itemCount + 4) * eachSpacing; } //画均线
if (candleOption.average.show || seriesMA) { //Merge pull request !12 from 邱贵翔
seriesMA.forEach(function(eachSeries, seriesIndex) { let ranges, minRange, maxRange; ranges = [].concat(opts.chartData.yAxisData.ranges[eachSeries.index]); minRange = ranges.pop(); maxRange = ranges.shift(); var data = eachSeries.data; var points = getDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config, process); var splitPointList = splitPoints(points,eachSeries); for (let i = 0; i < splitPointList.length; i++) { let points = splitPointList[i]; context.beginPath(); context.setStrokeStyle(eachSeries.color); context.setLineWidth(1); if (points.length === 1) { context.moveTo(points[0].x, points[0].y); context.arc(points[0].x, points[0].y, 1, 0, 2 * Math.PI); } else { context.moveTo(points[0].x, points[0].y); let startPoint = 0; for (let j = 0; j < points.length; j++) { let item = points[j]; if (startPoint == 0 && item.x > leftSpace) { context.moveTo(item.x, item.y); startPoint = 1; } if (j > 0 && item.x > leftSpace && item.x < rightSpace) { var ctrlPoint = createCurveControlPoints(points, j - 1); context.bezierCurveTo(ctrlPoint.ctrA.x, ctrlPoint.ctrA.y, ctrlPoint.ctrB.x, ctrlPoint.ctrB.y, item.x, item.y); } } context.moveTo(points[0].x, points[0].y); } context.closePath(); context.stroke(); } }); } //画K线
series.forEach(function(eachSeries, seriesIndex) { let ranges, minRange, maxRange; ranges = [].concat(opts.chartData.yAxisData.ranges[eachSeries.index]); minRange = ranges.pop(); maxRange = ranges.shift(); var data = eachSeries.data; var points = getCandleDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config, process); calPoints.push(points); var splitPointList = splitPoints(points,eachSeries); for (let i = 0; i < splitPointList[0].length; i++) { if (i > leftNum && i < rightNum) { let item = splitPointList[0][i]; context.beginPath(); //如果上涨
if (data[i][1] - data[i][0] > 0) { context.setStrokeStyle(candleOption.color.upLine); context.setFillStyle(candleOption.color.upFill); context.setLineWidth(1 * opts.pix); context.moveTo(item[3].x, item[3].y); //顶点
context.lineTo(item[1].x, item[1].y); //收盘中间点
context.lineTo(item[1].x - eachSpacing / 4, item[1].y); //收盘左侧点
context.lineTo(item[0].x - eachSpacing / 4, item[0].y); //开盘左侧点
context.lineTo(item[0].x, item[0].y); //开盘中间点
context.lineTo(item[2].x, item[2].y); //底点
context.lineTo(item[0].x, item[0].y); //开盘中间点
context.lineTo(item[0].x + eachSpacing / 4, item[0].y); //开盘右侧点
context.lineTo(item[1].x + eachSpacing / 4, item[1].y); //收盘右侧点
context.lineTo(item[1].x, item[1].y); //收盘中间点
context.moveTo(item[3].x, item[3].y); //顶点
} else { context.setStrokeStyle(candleOption.color.downLine); context.setFillStyle(candleOption.color.downFill); context.setLineWidth(1 * opts.pix); context.moveTo(item[3].x, item[3].y); //顶点
context.lineTo(item[0].x, item[0].y); //开盘中间点
context.lineTo(item[0].x - eachSpacing / 4, item[0].y); //开盘左侧点
context.lineTo(item[1].x - eachSpacing / 4, item[1].y); //收盘左侧点
context.lineTo(item[1].x, item[1].y); //收盘中间点
context.lineTo(item[2].x, item[2].y); //底点
context.lineTo(item[1].x, item[1].y); //收盘中间点
context.lineTo(item[1].x + eachSpacing / 4, item[1].y); //收盘右侧点
context.lineTo(item[0].x + eachSpacing / 4, item[0].y); //开盘右侧点
context.lineTo(item[0].x, item[0].y); //开盘中间点
context.moveTo(item[3].x, item[3].y); //顶点
} context.closePath(); context.fill(); context.stroke(); } } }); context.restore(); return { xAxisPoints: xAxisPoints, calPoints: calPoints, eachSpacing: eachSpacing }; }
function drawAreaDataPoints(series, opts, config, context) { var process = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 1; var areaOption = assign({}, { type: 'straight', opacity: 0.2, addLine: false, width: 2, gradient: false, activeType: 'none' }, opts.extra.area); let xAxisData = opts.chartData.xAxisData, xAxisPoints = xAxisData.xAxisPoints, eachSpacing = xAxisData.eachSpacing; let endY = opts.height - opts.area[2]; let calPoints = []; context.save(); let leftSpace = 0; let rightSpace = opts.width + eachSpacing; if (opts._scrollDistance_ && opts._scrollDistance_ !== 0 && opts.enableScroll === true) { context.translate(opts._scrollDistance_, 0); leftSpace = -opts._scrollDistance_ - eachSpacing * 2 + opts.area[3]; rightSpace = leftSpace + (opts.xAxis.itemCount + 4) * eachSpacing; } series.forEach(function(eachSeries, seriesIndex) { let ranges, minRange, maxRange; ranges = [].concat(opts.chartData.yAxisData.ranges[eachSeries.index]); minRange = ranges.pop(); maxRange = ranges.shift(); let data = eachSeries.data; let points = getDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config, process); calPoints.push(points); let splitPointList = splitPoints(points,eachSeries); for (let i = 0; i < splitPointList.length; i++) { let points = splitPointList[i]; // 绘制区域数
context.beginPath(); context.setStrokeStyle(hexToRgb(eachSeries.color, areaOption.opacity)); if (areaOption.gradient) { let gradient = context.createLinearGradient(0, opts.area[0], 0, opts.height - opts.area[2]); gradient.addColorStop('0', hexToRgb(eachSeries.color, areaOption.opacity)); gradient.addColorStop('1.0', hexToRgb("#FFFFFF", 0.1)); context.setFillStyle(gradient); } else { context.setFillStyle(hexToRgb(eachSeries.color, areaOption.opacity)); } context.setLineWidth(areaOption.width * opts.pix); if (points.length > 1) { let firstPoint = points[0]; let lastPoint = points[points.length - 1]; context.moveTo(firstPoint.x, firstPoint.y); let startPoint = 0; if (areaOption.type === 'curve') { for (let j = 0; j < points.length; j++) { let item = points[j]; if (startPoint == 0 && item.x > leftSpace) { context.moveTo(item.x, item.y); startPoint = 1; } if (j > 0 && item.x > leftSpace && item.x < rightSpace) { let ctrlPoint = createCurveControlPoints(points, j - 1); context.bezierCurveTo(ctrlPoint.ctrA.x, ctrlPoint.ctrA.y, ctrlPoint.ctrB.x, ctrlPoint.ctrB.y, item.x, item.y); } }; } if (areaOption.type === 'straight') { for (let j = 0; j < points.length; j++) { let item = points[j]; if (startPoint == 0 && item.x > leftSpace) { context.moveTo(item.x, item.y); startPoint = 1; } if (j > 0 && item.x > leftSpace && item.x < rightSpace) { context.lineTo(item.x, item.y); } }; } if (areaOption.type === 'step') { for (let j = 0; j < points.length; j++) { let item = points[j]; if (startPoint == 0 && item.x > leftSpace) { context.moveTo(item.x, item.y); startPoint = 1; } if (j > 0 && item.x > leftSpace && item.x < rightSpace) { context.lineTo(item.x, points[j - 1].y); context.lineTo(item.x, item.y); } }; } context.lineTo(lastPoint.x, endY); context.lineTo(firstPoint.x, endY); context.lineTo(firstPoint.x, firstPoint.y); } else { let item = points[0]; context.moveTo(item.x - eachSpacing / 2, item.y); // context.lineTo(item.x + eachSpacing / 2, item.y);
// context.lineTo(item.x + eachSpacing / 2, endY);
// context.lineTo(item.x - eachSpacing / 2, endY);
// context.moveTo(item.x - eachSpacing / 2, item.y);
} context.closePath(); context.fill(); //画连线
if (areaOption.addLine) { if (eachSeries.lineType == 'dash') { let dashLength = eachSeries.dashLength ? eachSeries.dashLength : 8; dashLength *= opts.pix; context.setLineDash([dashLength, dashLength]); } context.beginPath(); context.setStrokeStyle(eachSeries.color); context.setLineWidth(areaOption.width * opts.pix); if (points.length === 1) { context.moveTo(points[0].x, points[0].y); // context.arc(points[0].x, points[0].y, 1, 0, 2 * Math.PI);
} else { context.moveTo(points[0].x, points[0].y); let startPoint = 0; if (areaOption.type === 'curve') { for (let j = 0; j < points.length; j++) { let item = points[j]; if (startPoint == 0 && item.x > leftSpace) { context.moveTo(item.x, item.y); startPoint = 1; } if (j > 0 && item.x > leftSpace && item.x < rightSpace) { let ctrlPoint = createCurveControlPoints(points, j - 1); context.bezierCurveTo(ctrlPoint.ctrA.x, ctrlPoint.ctrA.y, ctrlPoint.ctrB.x, ctrlPoint.ctrB.y, item.x, item.y); } }; } if (areaOption.type === 'straight') { for (let j = 0; j < points.length; j++) { let item = points[j]; if (startPoint == 0 && item.x > leftSpace) { context.moveTo(item.x, item.y); startPoint = 1; } if (j > 0 && item.x > leftSpace && item.x < rightSpace) { context.lineTo(item.x, item.y); } }; } if (areaOption.type === 'step') { for (let j = 0; j < points.length; j++) { let item = points[j]; if (startPoint == 0 && item.x > leftSpace) { context.moveTo(item.x, item.y); startPoint = 1; } if (j > 0 && item.x > leftSpace && item.x < rightSpace) { context.lineTo(item.x, points[j - 1].y); context.lineTo(item.x, item.y); } }; } context.moveTo(points[0].x, points[0].y); } context.stroke(); context.setLineDash([]); } } //画点
if (opts.dataPointShape !== false) { drawPointShape(points, eachSeries.color, eachSeries.pointShape, context, opts); } drawActivePoint(points, eachSeries.color, eachSeries.pointShape, context, opts, areaOption,seriesIndex); });
if (opts.dataLabel !== false && process === 1) { series.forEach(function(eachSeries, seriesIndex) { let ranges, minRange, maxRange; ranges = [].concat(opts.chartData.yAxisData.ranges[eachSeries.index]); minRange = ranges.pop(); maxRange = ranges.shift(); var data = eachSeries.data; var points = getDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config, process); drawPointText(points, eachSeries, config, context, opts); }); } context.restore(); return { xAxisPoints: xAxisPoints, calPoints: calPoints, eachSpacing: eachSpacing }; }
function drawScatterDataPoints(series, opts, config, context) { var process = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 1; var scatterOption = assign({}, { type: 'circle' }, opts.extra.scatter); let xAxisData = opts.chartData.xAxisData, xAxisPoints = xAxisData.xAxisPoints, eachSpacing = xAxisData.eachSpacing; var calPoints = []; context.save(); let leftSpace = 0; let rightSpace = opts.width + eachSpacing; if (opts._scrollDistance_ && opts._scrollDistance_ !== 0 && opts.enableScroll === true) { context.translate(opts._scrollDistance_, 0); leftSpace = -opts._scrollDistance_ - eachSpacing * 2 + opts.area[3]; rightSpace = leftSpace + (opts.xAxis.itemCount + 4) * eachSpacing; } series.forEach(function(eachSeries, seriesIndex) { let ranges, minRange, maxRange; ranges = [].concat(opts.chartData.yAxisData.ranges[eachSeries.index]); minRange = ranges.pop(); maxRange = ranges.shift(); var data = eachSeries.data; var points = getDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config, process); context.beginPath(); context.setStrokeStyle(eachSeries.color); context.setFillStyle(eachSeries.color); context.setLineWidth(1 * opts.pix); var shape = eachSeries.pointShape; if (shape === 'diamond') { points.forEach(function(item, index) { if (item !== null) { context.moveTo(item.x, item.y - 4.5); context.lineTo(item.x - 4.5, item.y); context.lineTo(item.x, item.y + 4.5); context.lineTo(item.x + 4.5, item.y); context.lineTo(item.x, item.y - 4.5); } }); } else if (shape === 'circle') { points.forEach(function(item, index) { if (item !== null) { context.moveTo(item.x + 2.5 * opts.pix, item.y); context.arc(item.x, item.y, 3 * opts.pix, 0, 2 * Math.PI, false); } }); } else if (shape === 'square') { points.forEach(function(item, index) { if (item !== null) { context.moveTo(item.x - 3.5, item.y - 3.5); context.rect(item.x - 3.5, item.y - 3.5, 7, 7); } }); } else if (shape === 'triangle') { points.forEach(function(item, index) { if (item !== null) { context.moveTo(item.x, item.y - 4.5); context.lineTo(item.x - 4.5, item.y + 4.5); context.lineTo(item.x + 4.5, item.y + 4.5); context.lineTo(item.x, item.y - 4.5); } }); } else if (shape === 'triangle') { return; } context.closePath(); context.fill(); context.stroke(); }); if (opts.dataLabel !== false && process === 1) { series.forEach(function(eachSeries, seriesIndex) { let ranges, minRange, maxRange; ranges = [].concat(opts.chartData.yAxisData.ranges[eachSeries.index]); minRange = ranges.pop(); maxRange = ranges.shift(); var data = eachSeries.data; var points = getDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config, process); drawPointText(points, eachSeries, config, context, opts); }); } context.restore(); return { xAxisPoints: xAxisPoints, calPoints: calPoints, eachSpacing: eachSpacing }; }
function drawBubbleDataPoints(series, opts, config, context) { var process = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 1; var bubbleOption = assign({}, { opacity: 1, border:2 }, opts.extra.bubble); let xAxisData = opts.chartData.xAxisData, xAxisPoints = xAxisData.xAxisPoints, eachSpacing = xAxisData.eachSpacing; var calPoints = []; context.save(); let leftSpace = 0; let rightSpace = opts.width + eachSpacing; if (opts._scrollDistance_ && opts._scrollDistance_ !== 0 && opts.enableScroll === true) { context.translate(opts._scrollDistance_, 0); leftSpace = -opts._scrollDistance_ - eachSpacing * 2 + opts.area[3]; rightSpace = leftSpace + (opts.xAxis.itemCount + 4) * eachSpacing; } series.forEach(function(eachSeries, seriesIndex) { let ranges, minRange, maxRange; ranges = [].concat(opts.chartData.yAxisData.ranges[eachSeries.index]); minRange = ranges.pop(); maxRange = ranges.shift(); var data = eachSeries.data; var points = getDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config, process); context.beginPath(); context.setStrokeStyle(eachSeries.color); context.setLineWidth(bubbleOption.border * opts.pix); context.setFillStyle(hexToRgb(eachSeries.color, bubbleOption.opacity)); points.forEach(function(item, index) { context.moveTo(item.x + item.r, item.y); context.arc(item.x, item.y, item.r * opts.pix, 0, 2 * Math.PI, false); }); context.closePath(); context.fill(); context.stroke(); if (opts.dataLabel !== false && process === 1) { points.forEach(function(item, index) { context.beginPath(); var fontSize = eachSeries.textSize * opts.pix || config.fontSize; context.setFontSize(fontSize); context.setFillStyle(eachSeries.textColor || "#FFFFFF"); context.setTextAlign('center'); context.fillText(String(item.t), item.x, item.y + fontSize/2); context.closePath(); context.stroke(); context.setTextAlign('left'); }); } }); context.restore(); return { xAxisPoints: xAxisPoints, calPoints: calPoints, eachSpacing: eachSpacing }; }
function drawLineDataPoints(series, opts, config, context) { var process = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 1; var lineOption = assign({}, { type: 'straight', width: 2, activeType: 'none', linearType: 'none', onShadow: false, animation: 'vertical', }, opts.extra.line); lineOption.width *= opts.pix; let xAxisData = opts.chartData.xAxisData, xAxisPoints = xAxisData.xAxisPoints, eachSpacing = xAxisData.eachSpacing; var calPoints = []; context.save(); let leftSpace = 0; let rightSpace = opts.width + eachSpacing; if (opts._scrollDistance_ && opts._scrollDistance_ !== 0 && opts.enableScroll === true) { context.translate(opts._scrollDistance_, 0); leftSpace = -opts._scrollDistance_ - eachSpacing * 2 + opts.area[3]; rightSpace = leftSpace + (opts.xAxis.itemCount + 4) * eachSpacing; } series.forEach(function(eachSeries, seriesIndex) { // 这段很神奇的代码用于解决ios16的setStrokeStyle失效的bug
context.beginPath(); context.setStrokeStyle(eachSeries.color); context.moveTo(-10000, -10000); context.lineTo(-10001, -10001); context.stroke(); let ranges, minRange, maxRange; ranges = [].concat(opts.chartData.yAxisData.ranges[eachSeries.index]); minRange = ranges.pop(); maxRange = ranges.shift(); var data = eachSeries.data; var points = getLineDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config, lineOption, process); calPoints.push(points); var splitPointList = splitPoints(points,eachSeries); if (eachSeries.lineType == 'dash') { let dashLength = eachSeries.dashLength ? eachSeries.dashLength : 8; dashLength *= opts.pix; context.setLineDash([dashLength, dashLength]); } context.beginPath(); var strokeColor = eachSeries.color; if (lineOption.linearType !== 'none' && eachSeries.linearColor && eachSeries.linearColor.length > 0) { var grd = context.createLinearGradient(opts.chartData.xAxisData.startX, opts.height/2, opts.chartData.xAxisData.endX, opts.height/2); for (var i = 0; i < eachSeries.linearColor.length; i++) { grd.addColorStop(eachSeries.linearColor[i][0], hexToRgb(eachSeries.linearColor[i][1], 1)); } strokeColor = grd } context.setStrokeStyle(strokeColor); if (lineOption.onShadow == true && eachSeries.setShadow && eachSeries.setShadow.length > 0) { context.setShadow(eachSeries.setShadow[0], eachSeries.setShadow[1], eachSeries.setShadow[2], eachSeries.setShadow[3]); }else{ context.setShadow(0, 0, 0, 'rgba(0,0,0,0)'); } context.setLineWidth(lineOption.width); splitPointList.forEach(function(points, index) { if (points.length === 1) { context.moveTo(points[0].x, points[0].y); // context.arc(points[0].x, points[0].y, 1, 0, 2 * Math.PI);
} else { context.moveTo(points[0].x, points[0].y); let startPoint = 0; if (lineOption.type === 'curve') { for (let j = 0; j < points.length; j++) { let item = points[j]; if (startPoint == 0 && item.x > leftSpace) { context.moveTo(item.x, item.y); startPoint = 1; } if (j > 0 && item.x > leftSpace && item.x < rightSpace) { var ctrlPoint = createCurveControlPoints(points, j - 1); context.bezierCurveTo(ctrlPoint.ctrA.x, ctrlPoint.ctrA.y, ctrlPoint.ctrB.x, ctrlPoint.ctrB.y, item.x, item.y); } }; } if (lineOption.type === 'straight') { for (let j = 0; j < points.length; j++) { let item = points[j]; if (startPoint == 0 && item.x > leftSpace) { context.moveTo(item.x, item.y); startPoint = 1; } if (j > 0 && item.x > leftSpace && item.x < rightSpace) { context.lineTo(item.x, item.y); } }; } if (lineOption.type === 'step') { for (let j = 0; j < points.length; j++) { let item = points[j]; if (startPoint == 0 && item.x > leftSpace) { context.moveTo(item.x, item.y); startPoint = 1; } if (j > 0 && item.x > leftSpace && item.x < rightSpace) { context.lineTo(item.x, points[j - 1].y); context.lineTo(item.x, item.y); } }; } context.moveTo(points[0].x, points[0].y); } }); context.stroke(); context.setLineDash([]); if (opts.dataPointShape !== false) { drawPointShape(points, eachSeries.color, eachSeries.pointShape, context, opts); } drawActivePoint(points, eachSeries.color, eachSeries.pointShape, context, opts, lineOption); }); if (opts.dataLabel !== false && process === 1) { series.forEach(function(eachSeries, seriesIndex) { let ranges, minRange, maxRange; ranges = [].concat(opts.chartData.yAxisData.ranges[eachSeries.index]); minRange = ranges.pop(); maxRange = ranges.shift(); var data = eachSeries.data; var points = getDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config, process); drawPointText(points, eachSeries, config, context, opts); }); } context.restore(); return { xAxisPoints: xAxisPoints, calPoints: calPoints, eachSpacing: eachSpacing }; }
function drawMixDataPoints(series, opts, config, context) { let process = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 1; let xAxisData = opts.chartData.xAxisData, xAxisPoints = xAxisData.xAxisPoints, eachSpacing = xAxisData.eachSpacing; let columnOption = assign({}, { width: eachSpacing / 2, barBorderCircle: false, barBorderRadius: [], seriesGap: 2, linearType: 'none', linearOpacity: 1, customColor: [], colorStop: 0, }, opts.extra.mix.column); let areaOption = assign({}, { opacity: 0.2, gradient: false }, opts.extra.mix.area); let lineOption = assign({}, { width: 2 }, opts.extra.mix.line); let endY = opts.height - opts.area[2]; let calPoints = []; var columnIndex = 0; var columnLength = 0; series.forEach(function(eachSeries, seriesIndex) { if (eachSeries.type == 'column') { columnLength += 1; } }); context.save(); let leftNum = -2; let rightNum = xAxisPoints.length + 2; let leftSpace = 0; let rightSpace = opts.width + eachSpacing; if (opts._scrollDistance_ && opts._scrollDistance_ !== 0 && opts.enableScroll === true) { context.translate(opts._scrollDistance_, 0); leftNum = Math.floor(-opts._scrollDistance_ / eachSpacing) - 2; rightNum = leftNum + opts.xAxis.itemCount + 4; leftSpace = -opts._scrollDistance_ - eachSpacing * 2 + opts.area[3]; rightSpace = leftSpace + (opts.xAxis.itemCount + 4) * eachSpacing; } columnOption.customColor = fillCustomColor(columnOption.linearType, columnOption.customColor, series, config); series.forEach(function(eachSeries, seriesIndex) { let ranges, minRange, maxRange; ranges = [].concat(opts.chartData.yAxisData.ranges[eachSeries.index]); minRange = ranges.pop(); maxRange = ranges.shift(); var data = eachSeries.data; var points = getDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config, process); calPoints.push(points); // 绘制柱状数据图
if (eachSeries.type == 'column') { points = fixColumeData(points, eachSpacing, columnLength, columnIndex, config, opts); for (let i = 0; i < points.length; i++) { let item = points[i]; if (item !== null && i > leftNum && i < rightNum) { var startX = item.x - item.width / 2; var height = opts.height - item.y - opts.area[2]; context.beginPath(); var fillColor = item.color || eachSeries.color var strokeColor = item.color || eachSeries.color if (columnOption.linearType !== 'none') { var grd = context.createLinearGradient(startX, item.y, startX, opts.height - opts.area[2]); //透明渐变
if (columnOption.linearType == 'opacity') { grd.addColorStop(0, hexToRgb(fillColor, columnOption.linearOpacity)); grd.addColorStop(1, hexToRgb(fillColor, 1)); } else { grd.addColorStop(0, hexToRgb(columnOption.customColor[eachSeries.linearIndex], columnOption.linearOpacity)); grd.addColorStop(columnOption.colorStop, hexToRgb(columnOption.customColor[eachSeries.linearIndex], columnOption.linearOpacity)); grd.addColorStop(1, hexToRgb(fillColor, 1)); } fillColor = grd } // 圆角边框
if ((columnOption.barBorderRadius && columnOption.barBorderRadius.length === 4) || columnOption.barBorderCircle) { const left = startX; const top = item.y; const width = item.width; const height = opts.height - opts.area[2] - item.y; if (columnOption.barBorderCircle) { columnOption.barBorderRadius = [width / 2, width / 2, 0, 0]; } let [r0, r1, r2, r3] = columnOption.barBorderRadius; let minRadius = Math.min(width/2,height/2); r0 = r0 > minRadius ? minRadius : r0; r1 = r1 > minRadius ? minRadius : r1; r2 = r2 > minRadius ? minRadius : r2; r3 = r3 > minRadius ? minRadius : r3; r0 = r0 < 0 ? 0 : r0; r1 = r1 < 0 ? 0 : r1; r2 = r2 < 0 ? 0 : r2; r3 = r3 < 0 ? 0 : r3; context.arc(left + r0, top + r0, r0, -Math.PI, -Math.PI / 2); context.arc(left + width - r1, top + r1, r1, -Math.PI / 2, 0); context.arc(left + width - r2, top + height - r2, r2, 0, Math.PI / 2); context.arc(left + r3, top + height - r3, r3, Math.PI / 2, Math.PI); } else { context.moveTo(startX, item.y); context.lineTo(startX + item.width, item.y); context.lineTo(startX + item.width, opts.height - opts.area[2]); context.lineTo(startX, opts.height - opts.area[2]); context.lineTo(startX, item.y); context.setLineWidth(1) context.setStrokeStyle(strokeColor); } context.setFillStyle(fillColor); context.closePath(); context.fill(); } } columnIndex += 1; } //绘制区域图数据
if (eachSeries.type == 'area') { let splitPointList = splitPoints(points,eachSeries); for (let i = 0; i < splitPointList.length; i++) { let points = splitPointList[i]; // 绘制区域数据
context.beginPath(); context.setStrokeStyle(eachSeries.color); context.setStrokeStyle(hexToRgb(eachSeries.color, areaOption.opacity)); if (areaOption.gradient) { let gradient = context.createLinearGradient(0, opts.area[0], 0, opts.height - opts.area[2]); gradient.addColorStop('0', hexToRgb(eachSeries.color, areaOption.opacity)); gradient.addColorStop('1.0', hexToRgb("#FFFFFF", 0.1)); context.setFillStyle(gradient); } else { context.setFillStyle(hexToRgb(eachSeries.color, areaOption.opacity)); } context.setLineWidth(2 * opts.pix); if (points.length > 1) { var firstPoint = points[0]; let lastPoint = points[points.length - 1]; context.moveTo(firstPoint.x, firstPoint.y); let startPoint = 0; if (eachSeries.style === 'curve') { for (let j = 0; j < points.length; j++) { let item = points[j]; if (startPoint == 0 && item.x > leftSpace) { context.moveTo(item.x, item.y); startPoint = 1; } if (j > 0 && item.x > leftSpace && item.x < rightSpace) { var ctrlPoint = createCurveControlPoints(points, j - 1); context.bezierCurveTo(ctrlPoint.ctrA.x, ctrlPoint.ctrA.y, ctrlPoint.ctrB.x, ctrlPoint.ctrB.y, item.x, item.y); } }; } else { for (let j = 0; j < points.length; j++) { let item = points[j]; if (startPoint == 0 && item.x > leftSpace) { context.moveTo(item.x, item.y); startPoint = 1; } if (j > 0 && item.x > leftSpace && item.x < rightSpace) { context.lineTo(item.x, item.y); } }; } context.lineTo(lastPoint.x, endY); context.lineTo(firstPoint.x, endY); context.lineTo(firstPoint.x, firstPoint.y); } else { let item = points[0]; context.moveTo(item.x - eachSpacing / 2, item.y); // context.lineTo(item.x + eachSpacing / 2, item.y);
// context.lineTo(item.x + eachSpacing / 2, endY);
// context.lineTo(item.x - eachSpacing / 2, endY);
// context.moveTo(item.x - eachSpacing / 2, item.y);
} context.closePath(); context.fill(); } } // 绘制折线数据图
if (eachSeries.type == 'line') { var splitPointList = splitPoints(points,eachSeries); splitPointList.forEach(function(points, index) { if (eachSeries.lineType == 'dash') { let dashLength = eachSeries.dashLength ? eachSeries.dashLength : 8; dashLength *= opts.pix; context.setLineDash([dashLength, dashLength]); } context.beginPath(); context.setStrokeStyle(eachSeries.color); context.setLineWidth(lineOption.width * opts.pix); if (points.length === 1) { context.moveTo(points[0].x, points[0].y); // context.arc(points[0].x, points[0].y, 1, 0, 2 * Math.PI);
} else { context.moveTo(points[0].x, points[0].y); let startPoint = 0; if (eachSeries.style == 'curve') { for (let j = 0; j < points.length; j++) { let item = points[j]; if (startPoint == 0 && item.x > leftSpace) { context.moveTo(item.x, item.y); startPoint = 1; } if (j > 0 && item.x > leftSpace && item.x < rightSpace) { var ctrlPoint = createCurveControlPoints(points, j - 1); context.bezierCurveTo(ctrlPoint.ctrA.x, ctrlPoint.ctrA.y, ctrlPoint.ctrB.x, ctrlPoint.ctrB.y, item.x, item.y); } } } else { for (let j = 0; j < points.length; j++) { let item = points[j]; if (startPoint == 0 && item.x > leftSpace) { context.moveTo(item.x, item.y); startPoint = 1; } if (j > 0 && item.x > leftSpace && item.x < rightSpace) { context.lineTo(item.x, item.y); } } } context.moveTo(points[0].x, points[0].y); } context.stroke(); context.setLineDash([]); }); } // 绘制点数据图
if (eachSeries.type == 'point') { eachSeries.addPoint = true; } if (eachSeries.addPoint == true && eachSeries.type !== 'column') { drawPointShape(points, eachSeries.color, eachSeries.pointShape, context, opts); } }); if (opts.dataLabel !== false && process === 1) { var columnIndex = 0; series.forEach(function(eachSeries, seriesIndex) { let ranges, minRange, maxRange; ranges = [].concat(opts.chartData.yAxisData.ranges[eachSeries.index]); minRange = ranges.pop(); maxRange = ranges.shift(); var data = eachSeries.data; var points = getDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config, process); if (eachSeries.type !== 'column') { drawPointText(points, eachSeries, config, context, opts); } else { points = fixColumeData(points, eachSpacing, columnLength, columnIndex, config, opts); drawPointText(points, eachSeries, config, context, opts); columnIndex += 1; } }); } context.restore(); return { xAxisPoints: xAxisPoints, calPoints: calPoints, eachSpacing: eachSpacing, } }
function drawToolTipBridge(opts, config, context, process, eachSpacing, xAxisPoints) { var toolTipOption = opts.extra.tooltip || {}; if (toolTipOption.horizentalLine && opts.tooltip && process === 1 && (opts.type == 'line' || opts.type == 'area' || opts.type == 'column' || opts.type == 'mount' || opts.type == 'candle' || opts.type == 'mix')) { drawToolTipHorizentalLine(opts, config, context, eachSpacing, xAxisPoints) } context.save(); if (opts._scrollDistance_ && opts._scrollDistance_ !== 0 && opts.enableScroll === true) { context.translate(opts._scrollDistance_, 0); } if (opts.tooltip && opts.tooltip.textList && opts.tooltip.textList.length && process === 1) { drawToolTip(opts.tooltip.textList, opts.tooltip.offset, opts, config, context, eachSpacing, xAxisPoints); } context.restore();
}
function drawXAxis(categories, opts, config, context) {
let xAxisData = opts.chartData.xAxisData, xAxisPoints = xAxisData.xAxisPoints, startX = xAxisData.startX, endX = xAxisData.endX, eachSpacing = xAxisData.eachSpacing; var boundaryGap = 'center'; if (opts.type == 'bar' || opts.type == 'line' || opts.type == 'area'|| opts.type == 'scatter' || opts.type == 'bubble') { boundaryGap = opts.xAxis.boundaryGap; } var startY = opts.height - opts.area[2]; var endY = opts.area[0];
//绘制滚动条
if (opts.enableScroll && opts.xAxis.scrollShow) { var scrollY = opts.height - opts.area[2] + config.xAxisHeight; var scrollScreenWidth = endX - startX; var scrollTotalWidth = eachSpacing * (xAxisPoints.length - 1); if(opts.type == 'mount' && opts.extra && opts.extra.mount && opts.extra.mount.widthRatio && opts.extra.mount.widthRatio > 1){ if(opts.extra.mount.widthRatio>2) opts.extra.mount.widthRatio = 2 scrollTotalWidth += (opts.extra.mount.widthRatio - 1)*eachSpacing; } var scrollWidth = scrollScreenWidth * scrollScreenWidth / scrollTotalWidth; var scrollLeft = 0; if (opts._scrollDistance_) { scrollLeft = -opts._scrollDistance_ * (scrollScreenWidth) / scrollTotalWidth; } context.beginPath(); context.setLineCap('round'); context.setLineWidth(6 * opts.pix); context.setStrokeStyle(opts.xAxis.scrollBackgroundColor || "#EFEBEF"); context.moveTo(startX, scrollY); context.lineTo(endX, scrollY); context.stroke(); context.closePath(); context.beginPath(); context.setLineCap('round'); context.setLineWidth(6 * opts.pix); context.setStrokeStyle(opts.xAxis.scrollColor || "#A6A6A6"); context.moveTo(startX + scrollLeft, scrollY); context.lineTo(startX + scrollLeft + scrollWidth, scrollY); context.stroke(); context.closePath(); context.setLineCap('butt'); } context.save(); if (opts._scrollDistance_ && opts._scrollDistance_ !== 0) { context.translate(opts._scrollDistance_, 0); } //绘制X轴刻度线
if (opts.xAxis.calibration === true) { context.setStrokeStyle(opts.xAxis.gridColor || "#cccccc"); context.setLineCap('butt'); context.setLineWidth(1 * opts.pix); xAxisPoints.forEach(function(item, index) { if (index > 0) { context.beginPath(); context.moveTo(item - eachSpacing / 2, startY); context.lineTo(item - eachSpacing / 2, startY + 3 * opts.pix); context.closePath(); context.stroke(); } }); } //绘制X轴网格
if (opts.xAxis.disableGrid !== true) { context.setStrokeStyle(opts.xAxis.gridColor || "#cccccc"); context.setLineCap('butt'); context.setLineWidth(1 * opts.pix); if (opts.xAxis.gridType == 'dash') { context.setLineDash([opts.xAxis.dashLength * opts.pix, opts.xAxis.dashLength * opts.pix]); } opts.xAxis.gridEval = opts.xAxis.gridEval || 1; xAxisPoints.forEach(function(item, index) { if (index % opts.xAxis.gridEval == 0) { context.beginPath(); context.moveTo(item, startY); context.lineTo(item, endY); context.stroke(); } }); context.setLineDash([]); } //绘制X轴文案
if (opts.xAxis.disabled !== true) { // 对X轴列表做抽稀处理
//默认全部显示X轴标签
let maxXAxisListLength = categories.length; //如果设置了X轴单屏数量
if (opts.xAxis.labelCount) { //如果设置X轴密度
if (opts.xAxis.itemCount) { maxXAxisListLength = Math.ceil(categories.length / opts.xAxis.itemCount * opts.xAxis.labelCount); } else { maxXAxisListLength = opts.xAxis.labelCount; } maxXAxisListLength -= 1; }
let ratio = Math.ceil(categories.length / maxXAxisListLength);
let newCategories = []; let cgLength = categories.length; for (let i = 0; i < cgLength; i++) { if (i % ratio !== 0) { newCategories.push(""); } else { newCategories.push(categories[i]); } } newCategories[cgLength - 1] = categories[cgLength - 1]; var xAxisFontSize = opts.xAxis.fontSize * opts.pix || config.fontSize; if (config._xAxisTextAngle_ === 0) { newCategories.forEach(function(item, index) { var xitem = opts.xAxis.formatter ? opts.xAxis.formatter(item,index,opts) : item; var offset = -measureText(String(xitem), xAxisFontSize, context) / 2; if (boundaryGap == 'center') { offset += eachSpacing / 2; } var scrollHeight = 0; if (opts.xAxis.scrollShow) { scrollHeight = 6 * opts.pix; } // 如果在主视图区域内
var _scrollDistance_ = opts._scrollDistance_ || 0; var truePoints = boundaryGap == 'center' ? xAxisPoints[index] + eachSpacing / 2 : xAxisPoints[index]; if((truePoints - Math.abs(_scrollDistance_)) >= (opts.area[3] - 1) && (truePoints - Math.abs(_scrollDistance_)) <= (opts.width - opts.area[1] + 1)){ context.beginPath(); context.setFontSize(xAxisFontSize); context.setFillStyle(opts.xAxis.fontColor || opts.fontColor); context.fillText(String(xitem), xAxisPoints[index] + offset, startY + opts.xAxis.marginTop * opts.pix + (opts.xAxis.lineHeight - opts.xAxis.fontSize) * opts.pix / 2 + opts.xAxis.fontSize * opts.pix); context.closePath(); context.stroke(); } }); } else { newCategories.forEach(function(item, index) { var xitem = opts.xAxis.formatter ? opts.xAxis.formatter(item) : item; // 如果在主视图区域内
var _scrollDistance_ = opts._scrollDistance_ || 0; var truePoints = boundaryGap == 'center' ? xAxisPoints[index] + eachSpacing / 2 : xAxisPoints[index]; if((truePoints - Math.abs(_scrollDistance_)) >= (opts.area[3] - 1) && (truePoints - Math.abs(_scrollDistance_)) <= (opts.width - opts.area[1] + 1)){ context.save(); context.beginPath(); context.setFontSize(xAxisFontSize); context.setFillStyle(opts.xAxis.fontColor || opts.fontColor); var textWidth = measureText(String(xitem), xAxisFontSize, context); var offsetX = xAxisPoints[index]; if (boundaryGap == 'center') { offsetX = xAxisPoints[index] + eachSpacing / 2; } var scrollHeight = 0; if (opts.xAxis.scrollShow) { scrollHeight = 6 * opts.pix; } var offsetY = startY + opts.xAxis.marginTop * opts.pix + xAxisFontSize - xAxisFontSize * Math.abs(Math.sin(config._xAxisTextAngle_)); if(opts.xAxis.rotateAngle < 0){ offsetX -= xAxisFontSize / 2; textWidth = 0; }else{ offsetX += xAxisFontSize / 2; textWidth = -textWidth; } context.translate(offsetX, offsetY); context.rotate(-1 * config._xAxisTextAngle_); context.fillText(String(xitem), textWidth , 0 ); context.closePath(); context.stroke(); context.restore(); } }); } } context.restore(); //画X轴标题
if (opts.xAxis.title) { context.beginPath(); context.setFontSize(opts.xAxis.titleFontSize * opts.pix); context.setFillStyle(opts.xAxis.titleFontColor); context.fillText(String(opts.xAxis.title), opts.width - opts.area[1] + opts.xAxis.titleOffsetX * opts.pix,opts.height - opts.area[2] + opts.xAxis.marginTop * opts.pix + (opts.xAxis.lineHeight - opts.xAxis.titleFontSize) * opts.pix / 2 + (opts.xAxis.titleFontSize + opts.xAxis.titleOffsetY) * opts.pix); context.closePath(); context.stroke(); } //绘制X轴轴线
if (opts.xAxis.axisLine) { context.beginPath(); context.setStrokeStyle(opts.xAxis.axisLineColor); context.setLineWidth(1 * opts.pix); context.moveTo(startX, opts.height - opts.area[2]); context.lineTo(endX, opts.height - opts.area[2]); context.stroke(); } }
function drawYAxisGrid(categories, opts, config, context) { if (opts.yAxis.disableGrid === true) { return; } let spacingValid = opts.height - opts.area[0] - opts.area[2]; let eachSpacing = spacingValid / opts.yAxis.splitNumber; let startX = opts.area[3]; let xAxisPoints = opts.chartData.xAxisData.xAxisPoints, xAxiseachSpacing = opts.chartData.xAxisData.eachSpacing; let TotalWidth = xAxiseachSpacing * (xAxisPoints.length - 1); if(opts.type == 'mount' && opts.extra && opts.extra.mount && opts.extra.mount.widthRatio && opts.extra.mount.widthRatio > 1 ){ if(opts.extra.mount.widthRatio>2) opts.extra.mount.widthRatio = 2 TotalWidth += (opts.extra.mount.widthRatio - 1) * xAxiseachSpacing; } let endX = startX + TotalWidth; let points = []; let startY = 1 if (opts.xAxis.axisLine === false) { startY = 0 } for (let i = startY; i < opts.yAxis.splitNumber + 1; i++) { points.push(opts.height - opts.area[2] - eachSpacing * i); } context.save(); if (opts._scrollDistance_ && opts._scrollDistance_ !== 0) { context.translate(opts._scrollDistance_, 0); } if (opts.yAxis.gridType == 'dash') { context.setLineDash([opts.yAxis.dashLength * opts.pix, opts.yAxis.dashLength * opts.pix]); } context.setStrokeStyle(opts.yAxis.gridColor); context.setLineWidth(1 * opts.pix); points.forEach(function(item, index) { context.beginPath(); context.moveTo(startX, item); context.lineTo(endX, item); context.stroke(); }); context.setLineDash([]); context.restore(); }
function drawYAxis(series, opts, config, context) { if (opts.yAxis.disabled === true) { return; } var spacingValid = opts.height - opts.area[0] - opts.area[2]; var eachSpacing = spacingValid / opts.yAxis.splitNumber; var startX = opts.area[3]; var endX = opts.width - opts.area[1]; var endY = opts.height - opts.area[2]; // set YAxis background
context.beginPath(); context.setFillStyle(opts.background); if (opts.enableScroll == true && opts.xAxis.scrollPosition && opts.xAxis.scrollPosition !== 'left') { context.fillRect(0, 0, startX, endY + 2 * opts.pix); } if (opts.enableScroll == true && opts.xAxis.scrollPosition && opts.xAxis.scrollPosition !== 'right') { context.fillRect(endX, 0, opts.width, endY + 2 * opts.pix); } context.closePath(); context.stroke(); let tStartLeft = opts.area[3]; let tStartRight = opts.width - opts.area[1]; let tStartCenter = opts.area[3] + (opts.width - opts.area[1] - opts.area[3]) / 2; if (opts.yAxis.data) { for (let i = 0; i < opts.yAxis.data.length; i++) { let yData = opts.yAxis.data[i]; var points = []; if(yData.type === 'categories'){ for (let i = 0; i <= yData.categories.length; i++) { points.push(opts.area[0] + spacingValid / yData.categories.length / 2 + spacingValid / yData.categories.length * i); } }else{ for (let i = 0; i <= opts.yAxis.splitNumber; i++) { points.push(opts.area[0] + eachSpacing * i); } } if (yData.disabled !== true) { let rangesFormat = opts.chartData.yAxisData.rangesFormat[i]; let yAxisFontSize = yData.fontSize ? yData.fontSize * opts.pix : config.fontSize; let yAxisWidth = opts.chartData.yAxisData.yAxisWidth[i]; let textAlign = yData.textAlign || "right"; //画Y轴刻度及文案
rangesFormat.forEach(function(item, index) { var pos = points[index]; context.beginPath(); context.setFontSize(yAxisFontSize); context.setLineWidth(1 * opts.pix); context.setStrokeStyle(yData.axisLineColor || '#cccccc'); context.setFillStyle(yData.fontColor || opts.fontColor); let tmpstrat = 0; let gapwidth = 4 * opts.pix; if (yAxisWidth.position == 'left') { //画刻度线
if (yData.calibration == true) { context.moveTo(tStartLeft, pos); context.lineTo(tStartLeft - 3 * opts.pix, pos); gapwidth += 3 * opts.pix; } //画文字
switch (textAlign) { case "left": context.setTextAlign('left'); tmpstrat = tStartLeft - yAxisWidth.width break; case "right": context.setTextAlign('right'); tmpstrat = tStartLeft - gapwidth break; default: context.setTextAlign('center'); tmpstrat = tStartLeft - yAxisWidth.width / 2 } context.fillText(String(item), tmpstrat, pos + yAxisFontSize / 2 - 3 * opts.pix);
} else if (yAxisWidth.position == 'right') { //画刻度线
if (yData.calibration == true) { context.moveTo(tStartRight, pos); context.lineTo(tStartRight + 3 * opts.pix, pos); gapwidth += 3 * opts.pix; } switch (textAlign) { case "left": context.setTextAlign('left'); tmpstrat = tStartRight + gapwidth break; case "right": context.setTextAlign('right'); tmpstrat = tStartRight + yAxisWidth.width break; default: context.setTextAlign('center'); tmpstrat = tStartRight + yAxisWidth.width / 2 } context.fillText(String(item), tmpstrat, pos + yAxisFontSize / 2 - 3 * opts.pix); } else if (yAxisWidth.position == 'center') { //画刻度线
if (yData.calibration == true) { context.moveTo(tStartCenter, pos); context.lineTo(tStartCenter - 3 * opts.pix, pos); gapwidth += 3 * opts.pix; } //画文字
switch (textAlign) { case "left": context.setTextAlign('left'); tmpstrat = tStartCenter - yAxisWidth.width break; case "right": context.setTextAlign('right'); tmpstrat = tStartCenter - gapwidth break; default: context.setTextAlign('center'); tmpstrat = tStartCenter - yAxisWidth.width / 2 } context.fillText(String(item), tmpstrat, pos + yAxisFontSize / 2 - 3 * opts.pix); } context.closePath(); context.stroke(); context.setTextAlign('left'); }); //画Y轴轴线
if (yData.axisLine !== false) { context.beginPath(); context.setStrokeStyle(yData.axisLineColor || '#cccccc'); context.setLineWidth(1 * opts.pix); if (yAxisWidth.position == 'left') { context.moveTo(tStartLeft, opts.height - opts.area[2]); context.lineTo(tStartLeft, opts.area[0]); } else if (yAxisWidth.position == 'right') { context.moveTo(tStartRight, opts.height - opts.area[2]); context.lineTo(tStartRight, opts.area[0]); } else if (yAxisWidth.position == 'center') { context.moveTo(tStartCenter, opts.height - opts.area[2]); context.lineTo(tStartCenter, opts.area[0]); } context.stroke(); } //画Y轴标题
if (opts.yAxis.showTitle) { let titleFontSize = yData.titleFontSize * opts.pix || config.fontSize; let title = yData.title; context.beginPath(); context.setFontSize(titleFontSize); context.setFillStyle(yData.titleFontColor || opts.fontColor); if (yAxisWidth.position == 'left') { context.fillText(title, tStartLeft - measureText(title, titleFontSize, context) / 2 + (yData.titleOffsetX || 0), opts.area[0] - (10 - (yData.titleOffsetY || 0)) * opts.pix); } else if (yAxisWidth.position == 'right') { context.fillText(title, tStartRight - measureText(title, titleFontSize, context) / 2 + (yData.titleOffsetX || 0), opts.area[0] - (10 - (yData.titleOffsetY || 0)) * opts.pix); } else if (yAxisWidth.position == 'center') { context.fillText(title, tStartCenter - measureText(title, titleFontSize, context) / 2 + (yData.titleOffsetX || 0), opts.area[0] - (10 - (yData.titleOffsetY || 0)) * opts.pix); } context.closePath(); context.stroke(); } if (yAxisWidth.position == 'left') { tStartLeft -= (yAxisWidth.width + opts.yAxis.padding * opts.pix); } else { tStartRight += yAxisWidth.width + opts.yAxis.padding * opts.pix; } } } }
}
function drawLegend(series, opts, config, context, chartData) { if (opts.legend.show === false) { return; } let legendData = chartData.legendData; let legendList = legendData.points; let legendArea = legendData.area; let padding = opts.legend.padding * opts.pix; let fontSize = opts.legend.fontSize * opts.pix; let shapeWidth = 15 * opts.pix; let shapeRight = 5 * opts.pix; let itemGap = opts.legend.itemGap * opts.pix; let lineHeight = Math.max(opts.legend.lineHeight * opts.pix, fontSize); //画背景及边框
context.beginPath(); context.setLineWidth(opts.legend.borderWidth * opts.pix); context.setStrokeStyle(opts.legend.borderColor); context.setFillStyle(opts.legend.backgroundColor); context.moveTo(legendArea.start.x, legendArea.start.y); context.rect(legendArea.start.x, legendArea.start.y, legendArea.width, legendArea.height); context.closePath(); context.fill(); context.stroke(); legendList.forEach(function(itemList, listIndex) { let width = 0; let height = 0; width = legendData.widthArr[listIndex]; height = legendData.heightArr[listIndex]; let startX = 0; let startY = 0; if (opts.legend.position == 'top' || opts.legend.position == 'bottom') { switch (opts.legend.float) { case 'left': startX = legendArea.start.x + padding; break; case 'right': startX = legendArea.start.x + legendArea.width - width; break; default: startX = legendArea.start.x + (legendArea.width - width) / 2; } startY = legendArea.start.y + padding + listIndex * lineHeight; } else { if (listIndex == 0) { width = 0; } else { width = legendData.widthArr[listIndex - 1]; } startX = legendArea.start.x + padding + width; startY = legendArea.start.y + padding + (legendArea.height - height) / 2; } context.setFontSize(config.fontSize); for (let i = 0; i < itemList.length; i++) { let item = itemList[i]; item.area = [0, 0, 0, 0]; item.area[0] = startX; item.area[1] = startY; item.area[3] = startY + lineHeight; context.beginPath(); context.setLineWidth(1 * opts.pix); context.setStrokeStyle(item.show ? item.color : opts.legend.hiddenColor); context.setFillStyle(item.show ? item.color : opts.legend.hiddenColor); switch (item.legendShape) { case 'line': context.moveTo(startX, startY + 0.5 * lineHeight - 2 * opts.pix); context.fillRect(startX, startY + 0.5 * lineHeight - 2 * opts.pix, 15 * opts.pix, 4 * opts.pix); break; case 'triangle': context.moveTo(startX + 7.5 * opts.pix, startY + 0.5 * lineHeight - 5 * opts.pix); context.lineTo(startX + 2.5 * opts.pix, startY + 0.5 * lineHeight + 5 * opts.pix); context.lineTo(startX + 12.5 * opts.pix, startY + 0.5 * lineHeight + 5 * opts.pix); context.lineTo(startX + 7.5 * opts.pix, startY + 0.5 * lineHeight - 5 * opts.pix); break; case 'diamond': context.moveTo(startX + 7.5 * opts.pix, startY + 0.5 * lineHeight - 5 * opts.pix); context.lineTo(startX + 2.5 * opts.pix, startY + 0.5 * lineHeight); context.lineTo(startX + 7.5 * opts.pix, startY + 0.5 * lineHeight + 5 * opts.pix); context.lineTo(startX + 12.5 * opts.pix, startY + 0.5 * lineHeight); context.lineTo(startX + 7.5 * opts.pix, startY + 0.5 * lineHeight - 5 * opts.pix); break; case 'circle': context.moveTo(startX + 7.5 * opts.pix, startY + 0.5 * lineHeight); context.arc(startX + 7.5 * opts.pix, startY + 0.5 * lineHeight, 5 * opts.pix, 0, 2 * Math.PI); break; case 'rect': context.moveTo(startX, startY + 0.5 * lineHeight - 5 * opts.pix); context.fillRect(startX, startY + 0.5 * lineHeight - 5 * opts.pix, 15 * opts.pix, 10 * opts.pix); break; case 'square': context.moveTo(startX + 5 * opts.pix, startY + 0.5 * lineHeight - 5 * opts.pix); context.fillRect(startX + 5 * opts.pix, startY + 0.5 * lineHeight - 5 * opts.pix, 10 * opts.pix, 10 * opts.pix); break; case 'none': break; default: context.moveTo(startX, startY + 0.5 * lineHeight - 5 * opts.pix); context.fillRect(startX, startY + 0.5 * lineHeight - 5 * opts.pix, 15 * opts.pix, 10 * opts.pix); } context.closePath(); context.fill(); context.stroke(); startX += shapeWidth + shapeRight; let fontTrans = 0.5 * lineHeight + 0.5 * fontSize - 2; const legendText = item.legendText ? item.legendText : item.name; context.beginPath(); context.setFontSize(fontSize); context.setFillStyle(item.show ? opts.legend.fontColor : opts.legend.hiddenColor); context.fillText(legendText, startX, startY + fontTrans); context.closePath(); context.stroke(); if (opts.legend.position == 'top' || opts.legend.position == 'bottom') { startX += measureText(legendText, fontSize, context) + itemGap; item.area[2] = startX; } else { item.area[2] = startX + measureText(legendText, fontSize, context) + itemGap;; startX -= shapeWidth + shapeRight; startY += lineHeight; } } }); }
function drawPieDataPoints(series, opts, config, context) { var process = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 1; var pieOption = assign({}, { activeOpacity: 0.5, activeRadius: 10, offsetAngle: 0, labelWidth: 15, ringWidth: 30, customRadius: 0, border: false, borderWidth: 2, borderColor: '#FFFFFF', centerColor: '#FFFFFF', linearType: 'none', customColor: [], }, opts.type == "pie" ? opts.extra.pie : opts.extra.ring); var centerPosition = { x: opts.area[3] + (opts.width - opts.area[1] - opts.area[3]) / 2, y: opts.area[0] + (opts.height - opts.area[0] - opts.area[2]) / 2 }; if (config.pieChartLinePadding == 0) { config.pieChartLinePadding = pieOption.activeRadius * opts.pix; }
var radius = Math.min((opts.width - opts.area[1] - opts.area[3]) / 2 - config.pieChartLinePadding - config.pieChartTextPadding - config._pieTextMaxLength_, (opts.height - opts.area[0] - opts.area[2]) / 2 - config.pieChartLinePadding - config.pieChartTextPadding); radius = radius < 10 ? 10 : radius; if (pieOption.customRadius > 0) { radius = pieOption.customRadius * opts.pix; } series = getPieDataPoints(series, radius, process); var activeRadius = pieOption.activeRadius * opts.pix; pieOption.customColor = fillCustomColor(pieOption.linearType, pieOption.customColor, series, config); series = series.map(function(eachSeries) { eachSeries._start_ += (pieOption.offsetAngle) * Math.PI / 180; return eachSeries; }); series.forEach(function(eachSeries, seriesIndex) { if (opts.tooltip) { if (opts.tooltip.index == seriesIndex) { context.beginPath(); context.setFillStyle(hexToRgb(eachSeries.color, pieOption.activeOpacity || 0.5)); context.moveTo(centerPosition.x, centerPosition.y); context.arc(centerPosition.x, centerPosition.y, eachSeries._radius_ + activeRadius, eachSeries._start_, eachSeries._start_ + 2 * eachSeries._proportion_ * Math.PI); context.closePath(); context.fill(); } } context.beginPath(); context.setLineWidth(pieOption.borderWidth * opts.pix); context.lineJoin = "round"; context.setStrokeStyle(pieOption.borderColor); var fillcolor = eachSeries.color; if (pieOption.linearType == 'custom') { var grd; if(context.createCircularGradient){ grd = context.createCircularGradient(centerPosition.x, centerPosition.y, eachSeries._radius_) }else{ grd = context.createRadialGradient(centerPosition.x, centerPosition.y, 0,centerPosition.x, centerPosition.y, eachSeries._radius_) } grd.addColorStop(0, hexToRgb(pieOption.customColor[eachSeries.linearIndex], 1)) grd.addColorStop(1, hexToRgb(eachSeries.color, 1)) fillcolor = grd } context.setFillStyle(fillcolor); context.moveTo(centerPosition.x, centerPosition.y); context.arc(centerPosition.x, centerPosition.y, eachSeries._radius_, eachSeries._start_, eachSeries._start_ + 2 * eachSeries._proportion_ * Math.PI); context.closePath(); context.fill(); if (pieOption.border == true) { context.stroke(); } }); if (opts.type === 'ring') { var innerPieWidth = radius * 0.6; if (typeof pieOption.ringWidth === 'number' && pieOption.ringWidth > 0) { innerPieWidth = Math.max(0, radius - pieOption.ringWidth * opts.pix); } context.beginPath(); context.setFillStyle(pieOption.centerColor); context.moveTo(centerPosition.x, centerPosition.y); context.arc(centerPosition.x, centerPosition.y, innerPieWidth, 0, 2 * Math.PI); context.closePath(); context.fill(); } if (opts.dataLabel !== false && process === 1) { drawPieText(series, opts, config, context, radius, centerPosition); } if (process === 1 && opts.type === 'ring') { drawRingTitle(opts, config, context, centerPosition); } return { center: centerPosition, radius: radius, series: series }; }
function drawRoseDataPoints(series, opts, config, context) { var process = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 1; var roseOption = assign({}, { type: 'area', activeOpacity: 0.5, activeRadius: 10, offsetAngle: 0, labelWidth: 15, border: false, borderWidth: 2, borderColor: '#FFFFFF', linearType: 'none', customColor: [], }, opts.extra.rose); if (config.pieChartLinePadding == 0) { config.pieChartLinePadding = roseOption.activeRadius * opts.pix; } var centerPosition = { x: opts.area[3] + (opts.width - opts.area[1] - opts.area[3]) / 2, y: opts.area[0] + (opts.height - opts.area[0] - opts.area[2]) / 2 }; var radius = Math.min((opts.width - opts.area[1] - opts.area[3]) / 2 - config.pieChartLinePadding - config.pieChartTextPadding - config._pieTextMaxLength_, (opts.height - opts.area[0] - opts.area[2]) / 2 - config.pieChartLinePadding - config.pieChartTextPadding); radius = radius < 10 ? 10 : radius; var minRadius = roseOption.minRadius || radius * 0.5; if(radius < minRadius){ radius = minRadius + 10; } series = getRoseDataPoints(series, roseOption.type, minRadius, radius, process); var activeRadius = roseOption.activeRadius * opts.pix; roseOption.customColor = fillCustomColor(roseOption.linearType, roseOption.customColor, series, config); series = series.map(function(eachSeries) { eachSeries._start_ += (roseOption.offsetAngle || 0) * Math.PI / 180; return eachSeries; }); series.forEach(function(eachSeries, seriesIndex) { if (opts.tooltip) { if (opts.tooltip.index == seriesIndex) { context.beginPath(); context.setFillStyle(hexToRgb(eachSeries.color, roseOption.activeOpacity || 0.5)); context.moveTo(centerPosition.x, centerPosition.y); context.arc(centerPosition.x, centerPosition.y, activeRadius + eachSeries._radius_, eachSeries._start_, eachSeries._start_ + 2 * eachSeries._rose_proportion_ * Math.PI); context.closePath(); context.fill(); } } context.beginPath(); context.setLineWidth(roseOption.borderWidth * opts.pix); context.lineJoin = "round"; context.setStrokeStyle(roseOption.borderColor); var fillcolor = eachSeries.color; if (roseOption.linearType == 'custom') { var grd; if(context.createCircularGradient){ grd = context.createCircularGradient(centerPosition.x, centerPosition.y, eachSeries._radius_) }else{ grd = context.createRadialGradient(centerPosition.x, centerPosition.y, 0,centerPosition.x, centerPosition.y, eachSeries._radius_) } grd.addColorStop(0, hexToRgb(roseOption.customColor[eachSeries.linearIndex], 1)) grd.addColorStop(1, hexToRgb(eachSeries.color, 1)) fillcolor = grd } context.setFillStyle(fillcolor); context.moveTo(centerPosition.x, centerPosition.y); context.arc(centerPosition.x, centerPosition.y, eachSeries._radius_, eachSeries._start_, eachSeries._start_ + 2 * eachSeries._rose_proportion_ * Math.PI); context.closePath(); context.fill(); if (roseOption.border == true) { context.stroke(); } });
if (opts.dataLabel !== false && process === 1) { drawPieText(series, opts, config, context, radius, centerPosition); } return { center: centerPosition, radius: radius, series: series }; }
function drawArcbarDataPoints(series, opts, config, context) { var process = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 1; var arcbarOption = assign({}, { startAngle: 0.75, endAngle: 0.25, type: 'default', direction: 'cw', lineCap: 'round', width: 12 , gap: 2 , linearType: 'none', customColor: [], }, opts.extra.arcbar); series = getArcbarDataPoints(series, arcbarOption, process); var centerPosition; if (arcbarOption.centerX || arcbarOption.centerY) { centerPosition = { x: arcbarOption.centerX ? arcbarOption.centerX : opts.width / 2, y: arcbarOption.centerY ? arcbarOption.centerY : opts.height / 2 }; } else { centerPosition = { x: opts.width / 2, y: opts.height / 2 }; } var radius; if (arcbarOption.radius) { radius = arcbarOption.radius; } else { radius = Math.min(centerPosition.x, centerPosition.y); radius -= 5 * opts.pix; radius -= arcbarOption.width / 2; } radius = radius < 10 ? 10 : radius; arcbarOption.customColor = fillCustomColor(arcbarOption.linearType, arcbarOption.customColor, series, config); for (let i = 0; i < series.length; i++) { let eachSeries = series[i]; //背景颜色
context.setLineWidth(arcbarOption.width * opts.pix); context.setStrokeStyle(arcbarOption.backgroundColor || '#E9E9E9'); context.setLineCap(arcbarOption.lineCap); context.beginPath(); if (arcbarOption.type == 'default') { context.arc(centerPosition.x, centerPosition.y, radius - (arcbarOption.width * opts.pix + arcbarOption.gap * opts.pix) * i, arcbarOption.startAngle * Math.PI, arcbarOption.endAngle * Math.PI, arcbarOption.direction == 'ccw'); } else { context.arc(centerPosition.x, centerPosition.y, radius - (arcbarOption.width * opts.pix + arcbarOption.gap * opts.pix) * i, 0, 2 * Math.PI, arcbarOption.direction == 'ccw'); } context.stroke(); //进度条
var fillColor = eachSeries.color if(arcbarOption.linearType == 'custom'){ var grd = context.createLinearGradient(centerPosition.x - radius, centerPosition.y, centerPosition.x + radius, centerPosition.y); grd.addColorStop(1, hexToRgb(arcbarOption.customColor[eachSeries.linearIndex], 1)) grd.addColorStop(0, hexToRgb(eachSeries.color, 1)) fillColor = grd; } context.setLineWidth(arcbarOption.width * opts.pix); context.setStrokeStyle(fillColor); context.setLineCap(arcbarOption.lineCap); context.beginPath(); context.arc(centerPosition.x, centerPosition.y, radius - (arcbarOption.width * opts.pix + arcbarOption.gap * opts.pix) * i, arcbarOption.startAngle * Math.PI, eachSeries._proportion_ * Math.PI, arcbarOption.direction == 'ccw'); context.stroke(); } drawRingTitle(opts, config, context, centerPosition); return { center: centerPosition, radius: radius, series: series }; }
function drawGaugeDataPoints(categories, series, opts, config, context) { var process = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : 1; var gaugeOption = assign({}, { type: 'default', startAngle: 0.75, endAngle: 0.25, width: 15, labelOffset:13, splitLine: { fixRadius: 0, splitNumber: 10, width: 15, color: '#FFFFFF', childNumber: 5, childWidth: 5 }, pointer: { width: 15, color: 'auto' } }, opts.extra.gauge); if (gaugeOption.oldAngle == undefined) { gaugeOption.oldAngle = gaugeOption.startAngle; } if (gaugeOption.oldData == undefined) { gaugeOption.oldData = 0; } categories = getGaugeAxisPoints(categories, gaugeOption.startAngle, gaugeOption.endAngle); var centerPosition = { x: opts.width / 2, y: opts.height / 2 }; var radius = Math.min(centerPosition.x, centerPosition.y); radius -= 5 * opts.pix; radius -= gaugeOption.width / 2; radius = radius < 10 ? 10 : radius; var innerRadius = radius - gaugeOption.width; var totalAngle = 0; //判断仪表盘的样式:default百度样式,progress新样式
if (gaugeOption.type == 'progress') { //## 第一步画中心圆形背景和进度条背景
//中心圆形背景
var pieRadius = radius - gaugeOption.width * 3; context.beginPath(); let gradient = context.createLinearGradient(centerPosition.x, centerPosition.y - pieRadius, centerPosition.x, centerPosition.y + pieRadius); //配置渐变填充(起点:中心点向上减半径;结束点中心点向下加半径)
gradient.addColorStop('0', hexToRgb(series[0].color, 0.3)); gradient.addColorStop('1.0', hexToRgb("#FFFFFF", 0.1)); context.setFillStyle(gradient); context.arc(centerPosition.x, centerPosition.y, pieRadius, 0, 2 * Math.PI, false); context.fill(); //画进度条背景
context.setLineWidth(gaugeOption.width); context.setStrokeStyle(hexToRgb(series[0].color, 0.3)); context.setLineCap('round'); context.beginPath(); context.arc(centerPosition.x, centerPosition.y, innerRadius, gaugeOption.startAngle * Math.PI, gaugeOption.endAngle * Math.PI, false); context.stroke(); //## 第二步画刻度线
if (gaugeOption.endAngle < gaugeOption.startAngle) { totalAngle = 2 + gaugeOption.endAngle - gaugeOption.startAngle; } else { totalAngle = gaugeOption.startAngle - gaugeOption.endAngle; } let splitAngle = totalAngle / gaugeOption.splitLine.splitNumber; let childAngle = totalAngle / gaugeOption.splitLine.splitNumber / gaugeOption.splitLine.childNumber; let startX = -radius - gaugeOption.width * 0.5 - gaugeOption.splitLine.fixRadius; let endX = -radius - gaugeOption.width - gaugeOption.splitLine.fixRadius + gaugeOption.splitLine.width; context.save(); context.translate(centerPosition.x, centerPosition.y); context.rotate((gaugeOption.startAngle - 1) * Math.PI); let len = gaugeOption.splitLine.splitNumber * gaugeOption.splitLine.childNumber + 1; let proc = series[0].data * process; for (let i = 0; i < len; i++) { context.beginPath(); //刻度线随进度变色
if (proc > (i / len)) { context.setStrokeStyle(hexToRgb(series[0].color, 1)); } else { context.setStrokeStyle(hexToRgb(series[0].color, 0.3)); } context.setLineWidth(3 * opts.pix); context.moveTo(startX, 0); context.lineTo(endX, 0); context.stroke(); context.rotate(childAngle * Math.PI); } context.restore(); //## 第三步画进度条
series = getGaugeArcbarDataPoints(series, gaugeOption, process); context.setLineWidth(gaugeOption.width); context.setStrokeStyle(series[0].color); context.setLineCap('round'); context.beginPath(); context.arc(centerPosition.x, centerPosition.y, innerRadius, gaugeOption.startAngle * Math.PI, series[0]._proportion_ * Math.PI, false); context.stroke(); //## 第四步画指针
let pointerRadius = radius - gaugeOption.width * 2.5; context.save(); context.translate(centerPosition.x, centerPosition.y); context.rotate((series[0]._proportion_ - 1) * Math.PI); context.beginPath(); context.setLineWidth(gaugeOption.width / 3); let gradient3 = context.createLinearGradient(0, -pointerRadius * 0.6, 0, pointerRadius * 0.6); gradient3.addColorStop('0', hexToRgb('#FFFFFF', 0)); gradient3.addColorStop('0.5', hexToRgb(series[0].color, 1)); gradient3.addColorStop('1.0', hexToRgb('#FFFFFF', 0)); context.setStrokeStyle(gradient3); context.arc(0, 0, pointerRadius, 0.85 * Math.PI, 1.15 * Math.PI, false); context.stroke(); context.beginPath(); context.setLineWidth(1); context.setStrokeStyle(series[0].color); context.setFillStyle(series[0].color); context.moveTo(-pointerRadius - gaugeOption.width / 3 / 2, -4); context.lineTo(-pointerRadius - gaugeOption.width / 3 / 2 - 4, 0); context.lineTo(-pointerRadius - gaugeOption.width / 3 / 2, 4); context.lineTo(-pointerRadius - gaugeOption.width / 3 / 2, -4); context.stroke(); context.fill(); context.restore(); //default百度样式
} else { //画背景
context.setLineWidth(gaugeOption.width); context.setLineCap('butt'); for (let i = 0; i < categories.length; i++) { let eachCategories = categories[i]; context.beginPath(); context.setStrokeStyle(eachCategories.color); context.arc(centerPosition.x, centerPosition.y, radius, eachCategories._startAngle_ * Math.PI, eachCategories._endAngle_ * Math.PI, false); context.stroke(); } context.save(); //画刻度线
if (gaugeOption.endAngle < gaugeOption.startAngle) { totalAngle = 2 + gaugeOption.endAngle - gaugeOption.startAngle; } else { totalAngle = gaugeOption.startAngle - gaugeOption.endAngle; } let splitAngle = totalAngle / gaugeOption.splitLine.splitNumber; let childAngle = totalAngle / gaugeOption.splitLine.splitNumber / gaugeOption.splitLine.childNumber; let startX = -radius - gaugeOption.width * 0.5 - gaugeOption.splitLine.fixRadius; let endX = -radius - gaugeOption.width * 0.5 - gaugeOption.splitLine.fixRadius + gaugeOption.splitLine.width; let childendX = -radius - gaugeOption.width * 0.5 - gaugeOption.splitLine.fixRadius + gaugeOption.splitLine.childWidth; context.translate(centerPosition.x, centerPosition.y); context.rotate((gaugeOption.startAngle - 1) * Math.PI); for (let i = 0; i < gaugeOption.splitLine.splitNumber + 1; i++) { context.beginPath(); context.setStrokeStyle(gaugeOption.splitLine.color); context.setLineWidth(2 * opts.pix); context.moveTo(startX, 0); context.lineTo(endX, 0); context.stroke(); context.rotate(splitAngle * Math.PI); } context.restore(); context.save(); context.translate(centerPosition.x, centerPosition.y); context.rotate((gaugeOption.startAngle - 1) * Math.PI); for (let i = 0; i < gaugeOption.splitLine.splitNumber * gaugeOption.splitLine.childNumber + 1; i++) { context.beginPath(); context.setStrokeStyle(gaugeOption.splitLine.color); context.setLineWidth(1 * opts.pix); context.moveTo(startX, 0); context.lineTo(childendX, 0); context.stroke(); context.rotate(childAngle * Math.PI); } context.restore(); //画指针
series = getGaugeDataPoints(series, categories, gaugeOption, process); for (let i = 0; i < series.length; i++) { let eachSeries = series[i]; context.save(); context.translate(centerPosition.x, centerPosition.y); context.rotate((eachSeries._proportion_ - 1) * Math.PI); context.beginPath(); context.setFillStyle(eachSeries.color); context.moveTo(gaugeOption.pointer.width, 0); context.lineTo(0, -gaugeOption.pointer.width / 2); context.lineTo(-innerRadius, 0); context.lineTo(0, gaugeOption.pointer.width / 2); context.lineTo(gaugeOption.pointer.width, 0); context.closePath(); context.fill(); context.beginPath(); context.setFillStyle('#FFFFFF'); context.arc(0, 0, gaugeOption.pointer.width / 6, 0, 2 * Math.PI, false); context.fill(); context.restore(); } if (opts.dataLabel !== false) { drawGaugeLabel(gaugeOption, radius, centerPosition, opts, config, context); } } //画仪表盘标题,副标题
drawRingTitle(opts, config, context, centerPosition); if (process === 1 && opts.type === 'gauge') { opts.extra.gauge.oldAngle = series[0]._proportion_; opts.extra.gauge.oldData = series[0].data; } return { center: centerPosition, radius: radius, innerRadius: innerRadius, categories: categories, totalAngle: totalAngle }; }
function drawRadarDataPoints(series, opts, config, context) { var process = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 1; var radarOption = assign({}, { gridColor: '#cccccc', gridType: 'radar', gridEval:1, axisLabel:false, axisLabelTofix:0, labelShow:true, labelColor:'#666666', labelPointShow:false, labelPointRadius:3, labelPointColor:'#cccccc', opacity: 0.2, gridCount: 3, border:false, borderWidth:2, linearType: 'none', customColor: [], }, opts.extra.radar); var coordinateAngle = getRadarCoordinateSeries(opts.categories.length); var centerPosition = { x: opts.area[3] + (opts.width - opts.area[1] - opts.area[3]) / 2, y: opts.area[0] + (opts.height - opts.area[0] - opts.area[2]) / 2 }; var xr = (opts.width - opts.area[1] - opts.area[3]) / 2 var yr = (opts.height - opts.area[0] - opts.area[2]) / 2 var radius = Math.min(xr - (getMaxTextListLength(opts.categories, config.fontSize, context) + config.radarLabelTextMargin), yr - config.radarLabelTextMargin); radius -= config.radarLabelTextMargin * opts.pix; radius = radius < 10 ? 10 : radius; radius = radarOption.radius ? radarOption.radius : radius; // 画分割线
context.beginPath(); context.setLineWidth(1 * opts.pix); context.setStrokeStyle(radarOption.gridColor); coordinateAngle.forEach(function(angle,index) { var pos = convertCoordinateOrigin(radius * Math.cos(angle), radius * Math.sin(angle), centerPosition); context.moveTo(centerPosition.x, centerPosition.y); if (index % radarOption.gridEval == 0) { context.lineTo(pos.x, pos.y); } }); context.stroke(); context.closePath(); // 画背景网格
var _loop = function _loop(i) { var startPos = {}; context.beginPath(); context.setLineWidth(1 * opts.pix); context.setStrokeStyle(radarOption.gridColor); if (radarOption.gridType == 'radar') { coordinateAngle.forEach(function(angle, index) { var pos = convertCoordinateOrigin(radius / radarOption.gridCount * i * Math.cos(angle), radius / radarOption.gridCount * i * Math.sin(angle), centerPosition); if (index === 0) { startPos = pos; context.moveTo(pos.x, pos.y); } else { context.lineTo(pos.x, pos.y); } }); context.lineTo(startPos.x, startPos.y); } else { var pos = convertCoordinateOrigin(radius / radarOption.gridCount * i * Math.cos(1.5), radius / radarOption.gridCount * i * Math.sin(1.5), centerPosition); context.arc(centerPosition.x, centerPosition.y, centerPosition.y - pos.y, 0, 2 * Math.PI, false); } context.stroke(); context.closePath(); }; for (var i = 1; i <= radarOption.gridCount; i++) { _loop(i); } radarOption.customColor = fillCustomColor(radarOption.linearType, radarOption.customColor, series, config); var radarDataPoints = getRadarDataPoints(coordinateAngle, centerPosition, radius, series, opts, process); radarDataPoints.forEach(function(eachSeries, seriesIndex) { // 绘制区域数据
context.beginPath(); context.setLineWidth(radarOption.borderWidth * opts.pix); context.setStrokeStyle(eachSeries.color); var fillcolor = hexToRgb(eachSeries.color, radarOption.opacity); if (radarOption.linearType == 'custom') { var grd; if(context.createCircularGradient){ grd = context.createCircularGradient(centerPosition.x, centerPosition.y, radius) }else{ grd = context.createRadialGradient(centerPosition.x, centerPosition.y, 0,centerPosition.x, centerPosition.y, radius) } grd.addColorStop(0, hexToRgb(radarOption.customColor[series[seriesIndex].linearIndex], radarOption.opacity)) grd.addColorStop(1, hexToRgb(eachSeries.color, radarOption.opacity)) fillcolor = grd } context.setFillStyle(fillcolor); eachSeries.data.forEach(function(item, index) { if (index === 0) { context.moveTo(item.position.x, item.position.y); } else { context.lineTo(item.position.x, item.position.y); } }); context.closePath(); context.fill(); if(radarOption.border === true){ context.stroke(); } context.closePath(); if (opts.dataPointShape !== false) { var points = eachSeries.data.map(function(item) { return item.position; }); drawPointShape(points, eachSeries.color, eachSeries.pointShape, context, opts); } }); // 画刻度值
if(radarOption.axisLabel === true){ const maxData = Math.max(radarOption.max, Math.max.apply(null, dataCombine(series))); const stepLength = radius / radarOption.gridCount; const fontSize = opts.fontSize * opts.pix; context.setFontSize(fontSize); context.setFillStyle(opts.fontColor); context.setTextAlign('left'); for (var i = 0; i < radarOption.gridCount + 1; i++) { let label = i * maxData / radarOption.gridCount; label = label.toFixed(radarOption.axisLabelTofix); context.fillText(String(label), centerPosition.x + 3 * opts.pix, centerPosition.y - i * stepLength + fontSize / 2); } } // draw label text
drawRadarLabel(coordinateAngle, radius, centerPosition, opts, config, context); // draw dataLabel
if (opts.dataLabel !== false && process === 1) { radarDataPoints.forEach(function(eachSeries, seriesIndex) { context.beginPath(); var fontSize = eachSeries.textSize * opts.pix || config.fontSize; context.setFontSize(fontSize); context.setFillStyle(eachSeries.textColor || opts.fontColor); eachSeries.data.forEach(function(item, index) { //如果是中心点垂直的上下点位
if(Math.abs(item.position.x - centerPosition.x)<2){ //如果在上面
if(item.position.y < centerPosition.y){ context.setTextAlign('center'); context.fillText(item.value, item.position.x, item.position.y - 4); }else{ context.setTextAlign('center'); context.fillText(item.value, item.position.x, item.position.y + fontSize + 2); } }else{ //如果在左侧
if(item.position.x < centerPosition.x){ context.setTextAlign('right'); context.fillText(item.value, item.position.x - 4, item.position.y + fontSize / 2 - 2); }else{ context.setTextAlign('left'); context.fillText(item.value, item.position.x + 4, item.position.y + fontSize / 2 - 2); } } }); context.closePath(); context.stroke(); }); context.setTextAlign('left'); } return { center: centerPosition, radius: radius, angleList: coordinateAngle }; }
// 经纬度转墨卡托
function lonlat2mercator(longitude, latitude) { var mercator = Array(2); var x = longitude * 20037508.34 / 180; var y = Math.log(Math.tan((90 + latitude) * Math.PI / 360)) / (Math.PI / 180); y = y * 20037508.34 / 180; mercator[0] = x; mercator[1] = y; return mercator; }
// 墨卡托转经纬度
function mercator2lonlat(longitude, latitude) { var lonlat = Array(2) var x = longitude / 20037508.34 * 180; var y = latitude / 20037508.34 * 180; y = 180 / Math.PI * (2 * Math.atan(Math.exp(y * Math.PI / 180)) - Math.PI / 2); lonlat[0] = x; lonlat[1] = y; return lonlat; }
function getBoundingBox(data) { var bounds = {},coords; bounds.xMin = 180; bounds.xMax = 0; bounds.yMin = 90; bounds.yMax = 0 for (var i = 0; i < data.length; i++) { var coorda = data[i].geometry.coordinates for (var k = 0; k < coorda.length; k++) { coords = coorda[k]; if (coords.length == 1) { coords = coords[0] } for (var j = 0; j < coords.length; j++) { var longitude = coords[j][0]; var latitude = coords[j][1]; var point = { x: longitude, y: latitude } bounds.xMin = bounds.xMin < point.x ? bounds.xMin : point.x; bounds.xMax = bounds.xMax > point.x ? bounds.xMax : point.x; bounds.yMin = bounds.yMin < point.y ? bounds.yMin : point.y; bounds.yMax = bounds.yMax > point.y ? bounds.yMax : point.y; } } } return bounds; }
function coordinateToPoint(latitude, longitude, bounds, scale, xoffset, yoffset) { return { x: (longitude - bounds.xMin) * scale + xoffset, y: (bounds.yMax - latitude) * scale + yoffset }; }
function pointToCoordinate(pointY, pointX, bounds, scale, xoffset, yoffset) { return { x: (pointX - xoffset) / scale + bounds.xMin, y: bounds.yMax - (pointY - yoffset) / scale }; }
function isRayIntersectsSegment(poi, s_poi, e_poi) { if (s_poi[1] == e_poi[1]) { return false; } if (s_poi[1] > poi[1] && e_poi[1] > poi[1]) { return false; } if (s_poi[1] < poi[1] && e_poi[1] < poi[1]) { return false; } if (s_poi[1] == poi[1] && e_poi[1] > poi[1]) { return false; } if (e_poi[1] == poi[1] && s_poi[1] > poi[1]) { return false; } if (s_poi[0] < poi[0] && e_poi[1] < poi[1]) { return false; } let xseg = e_poi[0] - (e_poi[0] - s_poi[0]) * (e_poi[1] - poi[1]) / (e_poi[1] - s_poi[1]); if (xseg < poi[0]) { return false; } else { return true; } }
function isPoiWithinPoly(poi, poly, mercator) { let sinsc = 0; for (let i = 0; i < poly.length; i++) { let epoly = poly[i][0]; if (poly.length == 1) { epoly = poly[i][0] } for (let j = 0; j < epoly.length - 1; j++) { let s_poi = epoly[j]; let e_poi = epoly[j + 1]; if (mercator) { s_poi = lonlat2mercator(epoly[j][0], epoly[j][1]); e_poi = lonlat2mercator(epoly[j + 1][0], epoly[j + 1][1]); } if (isRayIntersectsSegment(poi, s_poi, e_poi)) { sinsc += 1; } } } if (sinsc % 2 == 1) { return true; } else { return false; } }
function drawMapDataPoints(series, opts, config, context) { var mapOption = assign({}, { border: true, mercator: false, borderWidth: 1, active:true, borderColor: '#666666', fillOpacity: 0.6, activeBorderColor: '#f04864', activeFillColor: '#facc14', activeFillOpacity: 1 }, opts.extra.map); var coords, point; var data = series; var bounds = getBoundingBox(data); if (mapOption.mercator) { var max = lonlat2mercator(bounds.xMax, bounds.yMax) var min = lonlat2mercator(bounds.xMin, bounds.yMin) bounds.xMax = max[0] bounds.yMax = max[1] bounds.xMin = min[0] bounds.yMin = min[1] } var xScale = opts.width / Math.abs(bounds.xMax - bounds.xMin); var yScale = opts.height / Math.abs(bounds.yMax - bounds.yMin); var scale = xScale < yScale ? xScale : yScale; var xoffset = opts.width / 2 - Math.abs(bounds.xMax - bounds.xMin) / 2 * scale; var yoffset = opts.height / 2 - Math.abs(bounds.yMax - bounds.yMin) / 2 * scale; for (var i = 0; i < data.length; i++) { context.beginPath(); context.setLineWidth(mapOption.borderWidth * opts.pix); context.setStrokeStyle(mapOption.borderColor); context.setFillStyle(hexToRgb(series[i].color, series[i].fillOpacity||mapOption.fillOpacity)); if (mapOption.active == true && opts.tooltip) { if (opts.tooltip.index == i) { context.setStrokeStyle(mapOption.activeBorderColor); context.setFillStyle(hexToRgb(mapOption.activeFillColor, mapOption.activeFillOpacity)); } } var coorda = data[i].geometry.coordinates for (var k = 0; k < coorda.length; k++) { coords = coorda[k]; if (coords.length == 1) { coords = coords[0] } for (var j = 0; j < coords.length; j++) { var gaosi = Array(2); if (mapOption.mercator) { gaosi = lonlat2mercator(coords[j][0], coords[j][1]) } else { gaosi = coords[j] } point = coordinateToPoint(gaosi[1], gaosi[0], bounds, scale, xoffset, yoffset) if (j === 0) { context.beginPath(); context.moveTo(point.x, point.y); } else { context.lineTo(point.x, point.y); } } context.fill(); if (mapOption.border == true) { context.stroke(); } } } if (opts.dataLabel == true) { for (var i = 0; i < data.length; i++) { var centerPoint = data[i].properties.centroid; if (centerPoint) { if (mapOption.mercator) { centerPoint = lonlat2mercator(data[i].properties.centroid[0], data[i].properties.centroid[1]) } point = coordinateToPoint(centerPoint[1], centerPoint[0], bounds, scale, xoffset, yoffset); let fontSize = data[i].textSize * opts.pix || config.fontSize; let fontColor = data[i].textColor || opts.fontColor; if(mapOption.active && mapOption.activeTextColor && opts.tooltip && opts.tooltip.index == i){ fontColor = mapOption.activeTextColor; } let text = data[i].properties.name; context.beginPath(); context.setFontSize(fontSize) context.setFillStyle(fontColor) context.fillText(text, point.x - measureText(text, fontSize, context) / 2, point.y + fontSize / 2); context.closePath(); context.stroke(); } } } opts.chartData.mapData = { bounds: bounds, scale: scale, xoffset: xoffset, yoffset: yoffset, mercator: mapOption.mercator } drawToolTipBridge(opts, config, context, 1); context.draw(); }
function normalInt(min, max, iter) { iter = iter == 0 ? 1 : iter; var arr = []; for (var i = 0; i < iter; i++) { arr[i] = Math.random(); }; return Math.floor(arr.reduce(function(i, j) { return i + j }) / iter * (max - min)) + min; };
function collisionNew(area, points, width, height) { var isIn = false; for (let i = 0; i < points.length; i++) { if (points[i].area) { if (area[3] < points[i].area[1] || area[0] > points[i].area[2] || area[1] > points[i].area[3] || area[2] < points[i].area[0]) { if (area[0] < 0 || area[1] < 0 || area[2] > width || area[3] > height) { isIn = true; break; } else { isIn = false; } } else { isIn = true; break; } } } return isIn; };
function getWordCloudPoint(opts, type, context) { let points = opts.series; switch (type) { case 'normal': for (let i = 0; i < points.length; i++) { let text = points[i].name; let tHeight = points[i].textSize * opts.pix; let tWidth = measureText(text, tHeight, context); let x, y; let area; let breaknum = 0; while (true) { breaknum++; x = normalInt(-opts.width / 2, opts.width / 2, 5) - tWidth / 2; y = normalInt(-opts.height / 2, opts.height / 2, 5) + tHeight / 2; area = [x - 5 + opts.width / 2, y - 5 - tHeight + opts.height / 2, x + tWidth + 5 + opts.width / 2, y + 5 + opts.height / 2 ]; let isCollision = collisionNew(area, points, opts.width, opts.height); if (!isCollision) break; if (breaknum == 1000) { area = [-100, -100, -100, -100]; break; } }; points[i].area = area; } break; case 'vertical': function Spin() { //获取均匀随机值,是否旋转,旋转的概率为(1-0.5)
if (Math.random() > 0.7) { return true; } else { return false }; }; for (let i = 0; i < points.length; i++) { let text = points[i].name; let tHeight = points[i].textSize * opts.pix; let tWidth = measureText(text, tHeight, context); let isSpin = Spin(); let x, y, area, areav; let breaknum = 0; while (true) { breaknum++; let isCollision; if (isSpin) { x = normalInt(-opts.width / 2, opts.width / 2, 5) - tWidth / 2; y = normalInt(-opts.height / 2, opts.height / 2, 5) + tHeight / 2; area = [y - 5 - tWidth + opts.width / 2, (-x - 5 + opts.height / 2), y + 5 + opts.width / 2, (-x + tHeight + 5 + opts.height / 2)]; areav = [opts.width - (opts.width / 2 - opts.height / 2) - (-x + tHeight + 5 + opts.height / 2) - 5, (opts.height / 2 - opts.width / 2) + (y - 5 - tWidth + opts.width / 2) - 5, opts.width - (opts.width / 2 - opts.height / 2) - (-x + tHeight + 5 + opts.height / 2) + tHeight, (opts.height / 2 - opts.width / 2) + (y - 5 - tWidth + opts.width / 2) + tWidth + 5]; isCollision = collisionNew(areav, points, opts.height, opts.width); } else { x = normalInt(-opts.width / 2, opts.width / 2, 5) - tWidth / 2; y = normalInt(-opts.height / 2, opts.height / 2, 5) + tHeight / 2; area = [x - 5 + opts.width / 2, y - 5 - tHeight + opts.height / 2, x + tWidth + 5 + opts.width / 2, y + 5 + opts.height / 2]; isCollision = collisionNew(area, points, opts.width, opts.height); } if (!isCollision) break; if (breaknum == 1000) { area = [-1000, -1000, -1000, -1000]; break; } }; if (isSpin) { points[i].area = areav; points[i].areav = area; } else { points[i].area = area; } points[i].rotate = isSpin; }; break; } return points; }
function drawWordCloudDataPoints(series, opts, config, context) { let process = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 1; let wordOption = assign({}, { type: 'normal', autoColors: true }, opts.extra.word); if (!opts.chartData.wordCloudData) { opts.chartData.wordCloudData = getWordCloudPoint(opts, wordOption.type, context); } context.beginPath(); context.setFillStyle(opts.background); context.rect(0, 0, opts.width, opts.height); context.fill(); context.save(); let points = opts.chartData.wordCloudData; context.translate(opts.width / 2, opts.height / 2); for (let i = 0; i < points.length; i++) { context.save(); if (points[i].rotate) { context.rotate(90 * Math.PI / 180); } let text = points[i].name; let tHeight = points[i].textSize * opts.pix; let tWidth = measureText(text, tHeight, context); context.beginPath(); context.setStrokeStyle(points[i].color); context.setFillStyle(points[i].color); context.setFontSize(tHeight); if (points[i].rotate) { if (points[i].areav[0] > 0) { if (opts.tooltip) { if (opts.tooltip.index == i) { context.strokeText(text, (points[i].areav[0] + 5 - opts.width / 2) * process - tWidth * (1 - process) / 2, (points[i].areav[1] + 5 + tHeight - opts.height / 2) * process); } else { context.fillText(text, (points[i].areav[0] + 5 - opts.width / 2) * process - tWidth * (1 - process) / 2, (points[i].areav[1] + 5 + tHeight - opts.height / 2) * process); } } else { context.fillText(text, (points[i].areav[0] + 5 - opts.width / 2) * process - tWidth * (1 - process) / 2, (points[i].areav[1] + 5 + tHeight - opts.height / 2) * process); } } } else { if (points[i].area[0] > 0) { if (opts.tooltip) { if (opts.tooltip.index == i) { context.strokeText(text, (points[i].area[0] + 5 - opts.width / 2) * process - tWidth * (1 - process) / 2, (points[i].area[1] + 5 + tHeight - opts.height / 2) * process); } else { context.fillText(text, (points[i].area[0] + 5 - opts.width / 2) * process - tWidth * (1 - process) / 2, (points[i].area[1] + 5 + tHeight - opts.height / 2) * process); } } else { context.fillText(text, (points[i].area[0] + 5 - opts.width / 2) * process - tWidth * (1 - process) / 2, (points[i].area[1] + 5 + tHeight - opts.height / 2) * process); } } } context.stroke(); context.restore(); } context.restore(); }
function drawFunnelDataPoints(series, opts, config, context) { let process = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 1; let funnelOption = assign({}, { type:'funnel', activeWidth: 10, activeOpacity: 0.3, border: false, borderWidth: 2, borderColor: '#FFFFFF', fillOpacity: 1, minSize: 0, labelAlign: 'right', linearType: 'none', customColor: [], }, opts.extra.funnel); let eachSpacing = (opts.height - opts.area[0] - opts.area[2]) / series.length; let centerPosition = { x: opts.area[3] + (opts.width - opts.area[1] - opts.area[3]) / 2, y: opts.height - opts.area[2] }; let activeWidth = funnelOption.activeWidth * opts.pix; let radius = Math.min((opts.width - opts.area[1] - opts.area[3]) / 2 - activeWidth, (opts.height - opts.area[0] - opts.area[2]) / 2 - activeWidth); let seriesNew = getFunnelDataPoints(series, radius, funnelOption, eachSpacing, process); context.save(); context.translate(centerPosition.x, centerPosition.y); funnelOption.customColor = fillCustomColor(funnelOption.linearType, funnelOption.customColor, series, config); if(funnelOption.type == 'pyramid'){ for (let i = 0; i < seriesNew.length; i++) { if (i == seriesNew.length -1) { if (opts.tooltip) { if (opts.tooltip.index == i) { context.beginPath(); context.setFillStyle(hexToRgb(seriesNew[i].color, funnelOption.activeOpacity)); context.moveTo(-activeWidth, -eachSpacing); context.lineTo(-seriesNew[i].radius - activeWidth, 0); context.lineTo(seriesNew[i].radius + activeWidth, 0); context.lineTo(activeWidth, -eachSpacing); context.lineTo(-activeWidth, -eachSpacing); context.closePath(); context.fill(); } } seriesNew[i].funnelArea = [centerPosition.x - seriesNew[i].radius, centerPosition.y - eachSpacing * (i + 1), centerPosition.x + seriesNew[i].radius, centerPosition.y - eachSpacing * i]; context.beginPath(); context.setLineWidth(funnelOption.borderWidth * opts.pix); context.setStrokeStyle(funnelOption.borderColor); var fillColor = hexToRgb(seriesNew[i].color, funnelOption.fillOpacity); if (funnelOption.linearType == 'custom') { var grd = context.createLinearGradient(seriesNew[i].radius, -eachSpacing, -seriesNew[i].radius, -eachSpacing); grd.addColorStop(0, hexToRgb(seriesNew[i].color, funnelOption.fillOpacity)); grd.addColorStop(0.5, hexToRgb(funnelOption.customColor[seriesNew[i].linearIndex], funnelOption.fillOpacity)); grd.addColorStop(1, hexToRgb(seriesNew[i].color, funnelOption.fillOpacity)); fillColor = grd } context.setFillStyle(fillColor); context.moveTo(0, -eachSpacing); context.lineTo(-seriesNew[i].radius, 0); context.lineTo(seriesNew[i].radius, 0); context.lineTo(0, -eachSpacing); context.closePath(); context.fill(); if (funnelOption.border == true) { context.stroke(); } } else { if (opts.tooltip) { if (opts.tooltip.index == i) { context.beginPath(); context.setFillStyle(hexToRgb(seriesNew[i].color, funnelOption.activeOpacity)); context.moveTo(0, 0); context.lineTo(-seriesNew[i].radius - activeWidth, 0); context.lineTo(-seriesNew[i + 1].radius - activeWidth, -eachSpacing); context.lineTo(seriesNew[i + 1].radius + activeWidth, -eachSpacing); context.lineTo(seriesNew[i].radius + activeWidth, 0); context.lineTo(0, 0); context.closePath(); context.fill(); } } seriesNew[i].funnelArea = [centerPosition.x - seriesNew[i].radius, centerPosition.y - eachSpacing * (i + 1), centerPosition.x + seriesNew[i].radius, centerPosition.y - eachSpacing * i]; context.beginPath(); context.setLineWidth(funnelOption.borderWidth * opts.pix); context.setStrokeStyle(funnelOption.borderColor); var fillColor = hexToRgb(seriesNew[i].color, funnelOption.fillOpacity); if (funnelOption.linearType == 'custom') { var grd = context.createLinearGradient(seriesNew[i].radius, -eachSpacing, -seriesNew[i].radius, -eachSpacing); grd.addColorStop(0, hexToRgb(seriesNew[i].color, funnelOption.fillOpacity)); grd.addColorStop(0.5, hexToRgb(funnelOption.customColor[seriesNew[i].linearIndex], funnelOption.fillOpacity)); grd.addColorStop(1, hexToRgb(seriesNew[i].color, funnelOption.fillOpacity)); fillColor = grd } context.setFillStyle(fillColor); context.moveTo(0, 0); context.lineTo(-seriesNew[i].radius, 0); context.lineTo(-seriesNew[i + 1].radius, -eachSpacing); context.lineTo(seriesNew[i + 1].radius, -eachSpacing); context.lineTo(seriesNew[i].radius, 0); context.lineTo(0, 0); context.closePath(); context.fill(); if (funnelOption.border == true) { context.stroke(); } } context.translate(0, -eachSpacing) } }else{ context.translate(0, - (seriesNew.length - 1) * eachSpacing); for (let i = 0; i < seriesNew.length; i++) { if (i == seriesNew.length - 1) { if (opts.tooltip) { if (opts.tooltip.index == i) { context.beginPath(); context.setFillStyle(hexToRgb(seriesNew[i].color, funnelOption.activeOpacity)); context.moveTo(-activeWidth - funnelOption.minSize/2, 0); context.lineTo(-seriesNew[i].radius - activeWidth, -eachSpacing); context.lineTo(seriesNew[i].radius + activeWidth, -eachSpacing); context.lineTo(activeWidth + funnelOption.minSize/2, 0); context.lineTo(-activeWidth - funnelOption.minSize/2, 0); context.closePath(); context.fill(); } } seriesNew[i].funnelArea = [centerPosition.x - seriesNew[i].radius, centerPosition.y - eachSpacing, centerPosition.x + seriesNew[i].radius, centerPosition.y ]; context.beginPath(); context.setLineWidth(funnelOption.borderWidth * opts.pix); context.setStrokeStyle(funnelOption.borderColor); var fillColor = hexToRgb(seriesNew[i].color, funnelOption.fillOpacity); if (funnelOption.linearType == 'custom') { var grd = context.createLinearGradient(seriesNew[i].radius, -eachSpacing, -seriesNew[i].radius, -eachSpacing); grd.addColorStop(0, hexToRgb(seriesNew[i].color, funnelOption.fillOpacity)); grd.addColorStop(0.5, hexToRgb(funnelOption.customColor[seriesNew[i].linearIndex], funnelOption.fillOpacity)); grd.addColorStop(1, hexToRgb(seriesNew[i].color, funnelOption.fillOpacity)); fillColor = grd } context.setFillStyle(fillColor); context.moveTo(0, 0); context.lineTo(-funnelOption.minSize/2, 0); context.lineTo(-seriesNew[i].radius, -eachSpacing); context.lineTo(seriesNew[i].radius, -eachSpacing); context.lineTo(funnelOption.minSize/2, 0); context.lineTo(0, 0); context.closePath(); context.fill(); if (funnelOption.border == true) { context.stroke(); } } else { if (opts.tooltip) { if (opts.tooltip.index == i) { context.beginPath(); context.setFillStyle(hexToRgb(seriesNew[i].color, funnelOption.activeOpacity)); context.moveTo(0, 0); context.lineTo(-seriesNew[i + 1].radius - activeWidth, 0); context.lineTo(-seriesNew[i].radius - activeWidth, -eachSpacing); context.lineTo(seriesNew[i].radius + activeWidth, -eachSpacing); context.lineTo(seriesNew[i + 1].radius + activeWidth, 0); context.lineTo(0, 0); context.closePath(); context.fill(); } } seriesNew[i].funnelArea = [centerPosition.x - seriesNew[i].radius, centerPosition.y - eachSpacing * (seriesNew.length - i), centerPosition.x + seriesNew[i].radius, centerPosition.y - eachSpacing * (seriesNew.length - i - 1)]; context.beginPath(); context.setLineWidth(funnelOption.borderWidth * opts.pix); context.setStrokeStyle(funnelOption.borderColor); var fillColor = hexToRgb(seriesNew[i].color, funnelOption.fillOpacity); if (funnelOption.linearType == 'custom') { var grd = context.createLinearGradient(seriesNew[i].radius, -eachSpacing, -seriesNew[i].radius, -eachSpacing); grd.addColorStop(0, hexToRgb(seriesNew[i].color, funnelOption.fillOpacity)); grd.addColorStop(0.5, hexToRgb(funnelOption.customColor[seriesNew[i].linearIndex], funnelOption.fillOpacity)); grd.addColorStop(1, hexToRgb(seriesNew[i].color, funnelOption.fillOpacity)); fillColor = grd } context.setFillStyle(fillColor); context.moveTo(0, 0); context.lineTo(-seriesNew[i + 1].radius, 0); context.lineTo(-seriesNew[i].radius, -eachSpacing); context.lineTo(seriesNew[i].radius, -eachSpacing); context.lineTo(seriesNew[i + 1].radius, 0); context.lineTo(0, 0); context.closePath(); context.fill(); if (funnelOption.border == true) { context.stroke(); } } context.translate(0, eachSpacing) } } context.restore(); if (opts.dataLabel !== false && process === 1) { drawFunnelText(seriesNew, opts, context, eachSpacing, funnelOption.labelAlign, activeWidth, centerPosition); } if (process === 1) { drawFunnelCenterText(seriesNew, opts, context, eachSpacing, funnelOption.labelAlign, activeWidth, centerPosition); } return { center: centerPosition, radius: radius, series: seriesNew }; }
function drawFunnelText(series, opts, context, eachSpacing, labelAlign, activeWidth, centerPosition) { for (let i = 0; i < series.length; i++) { let item = series[i]; if(item.labelShow === false){ continue; } let startX, endX, startY, fontSize; let text = item.formatter ? item.formatter(item,i,series,opts) : util.toFixed(item._proportion_ * 100) + '%'; text = item.labelText ? item.labelText : text; if (labelAlign == 'right') { if (i == series.length -1) { startX = (item.funnelArea[2] + centerPosition.x) / 2; } else { startX = (item.funnelArea[2] + series[i + 1].funnelArea[2]) / 2; } endX = startX + activeWidth * 2; startY = item.funnelArea[1] + eachSpacing / 2; fontSize = item.textSize * opts.pix || opts.fontSize * opts.pix; context.setLineWidth(1 * opts.pix); context.setStrokeStyle(item.color); context.setFillStyle(item.color); context.beginPath(); context.moveTo(startX, startY); context.lineTo(endX, startY); context.stroke(); context.closePath(); context.beginPath(); context.moveTo(endX, startY); context.arc(endX, startY, 2 * opts.pix, 0, 2 * Math.PI); context.closePath(); context.fill(); context.beginPath(); context.setFontSize(fontSize); context.setFillStyle(item.textColor || opts.fontColor); context.fillText(text, endX + 5, startY + fontSize / 2 - 2); context.closePath(); context.stroke(); context.closePath(); } if (labelAlign == 'left') { if (i == series.length -1) { startX = (item.funnelArea[0] + centerPosition.x) / 2; } else { startX = (item.funnelArea[0] + series[i + 1].funnelArea[0]) / 2; } endX = startX - activeWidth * 2; startY = item.funnelArea[1] + eachSpacing / 2; fontSize = item.textSize * opts.pix || opts.fontSize * opts.pix; context.setLineWidth(1 * opts.pix); context.setStrokeStyle(item.color); context.setFillStyle(item.color); context.beginPath(); context.moveTo(startX, startY); context.lineTo(endX, startY); context.stroke(); context.closePath(); context.beginPath(); context.moveTo(endX, startY); context.arc(endX, startY, 2, 0, 2 * Math.PI); context.closePath(); context.fill(); context.beginPath(); context.setFontSize(fontSize); context.setFillStyle(item.textColor || opts.fontColor); context.fillText(text, endX - 5 - measureText(text, fontSize, context), startY + fontSize / 2 - 2); context.closePath(); context.stroke(); context.closePath(); } } }
function drawFunnelCenterText(series, opts, context, eachSpacing, labelAlign, activeWidth, centerPosition) { for (let i = 0; i < series.length; i++) { let item = series[i]; let startY, fontSize; if (item.centerText) { startY = item.funnelArea[1] + eachSpacing / 2; fontSize = item.centerTextSize * opts.pix || opts.fontSize * opts.pix; context.beginPath(); context.setFontSize(fontSize); context.setFillStyle(item.centerTextColor || "#FFFFFF"); context.fillText(item.centerText, centerPosition.x - measureText(item.centerText, fontSize, context) / 2, startY + fontSize / 2 - 2); context.closePath(); context.stroke(); context.closePath(); } } }
function drawCanvas(opts, context) { context.save(); context.translate(0, 0.5); context.restore(); context.draw(); }
var Timing = { easeIn: function easeIn(pos) { return Math.pow(pos, 3); }, easeOut: function easeOut(pos) { return Math.pow(pos - 1, 3) + 1; }, easeInOut: function easeInOut(pos) { if ((pos /= 0.5) < 1) { return 0.5 * Math.pow(pos, 3); } else { return 0.5 * (Math.pow(pos - 2, 3) + 2); } }, linear: function linear(pos) { return pos; } };
function Animation(opts) { this.isStop = false; opts.duration = typeof opts.duration === 'undefined' ? 1000 : opts.duration; opts.timing = opts.timing || 'easeInOut'; var delay = 17; function createAnimationFrame() { if (typeof setTimeout !== 'undefined') { return function(step, delay) { setTimeout(function() { var timeStamp = +new Date(); step(timeStamp); }, delay); }; } else if (typeof requestAnimationFrame !== 'undefined') { return requestAnimationFrame; } else { return function(step) { step(null); }; } }; var animationFrame = createAnimationFrame(); var startTimeStamp = null; var _step = function step(timestamp) { if (timestamp === null || this.isStop === true) { opts.onProcess && opts.onProcess(1); opts.onAnimationFinish && opts.onAnimationFinish(); return; } if (startTimeStamp === null) { startTimeStamp = timestamp; } if (timestamp - startTimeStamp < opts.duration) { var process = (timestamp - startTimeStamp) / opts.duration; var timingFunction = Timing[opts.timing]; process = timingFunction(process); opts.onProcess && opts.onProcess(process); animationFrame(_step, delay); } else { opts.onProcess && opts.onProcess(1); opts.onAnimationFinish && opts.onAnimationFinish(); } }; _step = _step.bind(this); animationFrame(_step, delay); }
Animation.prototype.stop = function() { this.isStop = true; };
function drawCharts(type, opts, config, context) { var _this = this; var series = opts.series; //兼容ECharts饼图类数据格式
if (type === 'pie' || type === 'ring' || type === 'mount' || type === 'rose' || type === 'funnel') { series = fixPieSeries(series, opts, config); } var categories = opts.categories; if (type === 'mount') { categories = []; for (let j = 0; j < series.length; j++) { if(series[j].show !== false) categories.push(series[j].name) } opts.categories = categories; } series = fillSeries(series, opts, config); var duration = opts.animation ? opts.duration : 0; _this.animationInstance && _this.animationInstance.stop(); var seriesMA = null; if (type == 'candle') { let average = assign({}, opts.extra.candle.average); if (average.show) { seriesMA = calCandleMA(average.day, average.name, average.color, series[0].data); seriesMA = fillSeries(seriesMA, opts, config); opts.seriesMA = seriesMA; } else if (opts.seriesMA) { seriesMA = opts.seriesMA = fillSeries(opts.seriesMA, opts, config); } else { seriesMA = series; } } else { seriesMA = series; } /* 过滤掉show=false的series */ opts._series_ = series = filterSeries(series); //重新计算图表区域
opts.area = new Array(4); //复位绘图区域
for (let j = 0; j < 4; j++) { opts.area[j] = opts.padding[j] * opts.pix; } //通过计算三大区域:图例、X轴、Y轴的大小,确定绘图区域
var _calLegendData = calLegendData(seriesMA, opts, config, opts.chartData, context), legendHeight = _calLegendData.area.wholeHeight, legendWidth = _calLegendData.area.wholeWidth;
switch (opts.legend.position) { case 'top': opts.area[0] += legendHeight; break; case 'bottom': opts.area[2] += legendHeight; break; case 'left': opts.area[3] += legendWidth; break; case 'right': opts.area[1] += legendWidth; break; }
let _calYAxisData = {}, yAxisWidth = 0; if (opts.type === 'line' || opts.type === 'column'|| opts.type === 'mount' || opts.type === 'area' || opts.type === 'mix' || opts.type === 'candle' || opts.type === 'scatter' || opts.type === 'bubble' || opts.type === 'bar') { _calYAxisData = calYAxisData(series, opts, config, context); yAxisWidth = _calYAxisData.yAxisWidth; //如果显示Y轴标题
if (opts.yAxis.showTitle) { let maxTitleHeight = 0; for (let i = 0; i < opts.yAxis.data.length; i++) { maxTitleHeight = Math.max(maxTitleHeight, opts.yAxis.data[i].titleFontSize ? opts.yAxis.data[i].titleFontSize * opts.pix : config.fontSize) } opts.area[0] += maxTitleHeight; } let rightIndex = 0, leftIndex = 0; //计算主绘图区域左右位置
for (let i = 0; i < yAxisWidth.length; i++) { if (yAxisWidth[i].position == 'left') { if (leftIndex > 0) { opts.area[3] += yAxisWidth[i].width + opts.yAxis.padding * opts.pix; } else { opts.area[3] += yAxisWidth[i].width; } leftIndex += 1; } else if (yAxisWidth[i].position == 'right') { if (rightIndex > 0) { opts.area[1] += yAxisWidth[i].width + opts.yAxis.padding * opts.pix; } else { opts.area[1] += yAxisWidth[i].width; } rightIndex += 1; } } } else { config.yAxisWidth = yAxisWidth; } opts.chartData.yAxisData = _calYAxisData;
if (opts.categories && opts.categories.length && opts.type !== 'radar' && opts.type !== 'gauge' && opts.type !== 'bar') { opts.chartData.xAxisData = getXAxisPoints(opts.categories, opts, config); let _calCategoriesData = calCategoriesData(opts.categories, opts, config, opts.chartData.xAxisData.eachSpacing, context), xAxisHeight = _calCategoriesData.xAxisHeight, angle = _calCategoriesData.angle; config.xAxisHeight = xAxisHeight; config._xAxisTextAngle_ = angle; opts.area[2] += xAxisHeight; opts.chartData.categoriesData = _calCategoriesData; } else { if (opts.type === 'line' || opts.type === 'area' || opts.type === 'scatter' || opts.type === 'bubble' || opts.type === 'bar') { opts.chartData.xAxisData = calXAxisData(series, opts, config, context); categories = opts.chartData.xAxisData.rangesFormat; let _calCategoriesData = calCategoriesData(categories, opts, config, opts.chartData.xAxisData.eachSpacing, context), xAxisHeight = _calCategoriesData.xAxisHeight, angle = _calCategoriesData.angle; config.xAxisHeight = xAxisHeight; config._xAxisTextAngle_ = angle; opts.area[2] += xAxisHeight; opts.chartData.categoriesData = _calCategoriesData; } else { opts.chartData.xAxisData = { xAxisPoints: [] }; } }
//计算右对齐偏移距离
if (opts.enableScroll && opts.xAxis.scrollAlign == 'right' && opts._scrollDistance_ === undefined) { let offsetLeft = 0, xAxisPoints = opts.chartData.xAxisData.xAxisPoints, startX = opts.chartData.xAxisData.startX, endX = opts.chartData.xAxisData.endX, eachSpacing = opts.chartData.xAxisData.eachSpacing; let totalWidth = eachSpacing * (xAxisPoints.length - 1); let screenWidth = endX - startX; offsetLeft = screenWidth - totalWidth; _this.scrollOption.currentOffset = offsetLeft; _this.scrollOption.startTouchX = offsetLeft; _this.scrollOption.distance = 0; _this.scrollOption.lastMoveTime = 0; opts._scrollDistance_ = offsetLeft; }
if (type === 'pie' || type === 'ring' || type === 'rose') { config._pieTextMaxLength_ = opts.dataLabel === false ? 0 : getPieTextMaxLength(seriesMA, config, context, opts); } switch (type) { case 'word': this.animationInstance = new Animation({ timing: opts.timing, duration: duration, onProcess: function(process) { context.clearRect(0, 0, opts.width, opts.height); if (opts.rotate) { contextRotate(context, opts); } drawWordCloudDataPoints(series, opts, config, context, process); drawCanvas(opts, context); }, onAnimationFinish: function onAnimationFinish() { _this.uevent.trigger('renderComplete'); } }); break; case 'map': context.clearRect(0, 0, opts.width, opts.height); drawMapDataPoints(series, opts, config, context); setTimeout(()=>{ this.uevent.trigger('renderComplete'); },50) break; case 'funnel': this.animationInstance = new Animation({ timing: opts.timing, duration: duration, onProcess: function(process) { context.clearRect(0, 0, opts.width, opts.height); if (opts.rotate) { contextRotate(context, opts); } opts.chartData.funnelData = drawFunnelDataPoints(series, opts, config, context, process); drawLegend(opts.series, opts, config, context, opts.chartData); drawToolTipBridge(opts, config, context, process); drawCanvas(opts, context); }, onAnimationFinish: function onAnimationFinish() { _this.uevent.trigger('renderComplete'); } }); break; case 'line': this.animationInstance = new Animation({ timing: opts.timing, duration: duration, onProcess: function onProcess(process) { context.clearRect(0, 0, opts.width, opts.height); if (opts.rotate) { contextRotate(context, opts); } drawYAxisGrid(categories, opts, config, context); drawXAxis(categories, opts, config, context); var _drawLineDataPoints = drawLineDataPoints(series, opts, config, context, process), xAxisPoints = _drawLineDataPoints.xAxisPoints, calPoints = _drawLineDataPoints.calPoints, eachSpacing = _drawLineDataPoints.eachSpacing; opts.chartData.xAxisPoints = xAxisPoints; opts.chartData.calPoints = calPoints; opts.chartData.eachSpacing = eachSpacing; drawYAxis(series, opts, config, context); if (opts.enableMarkLine !== false && process === 1) { drawMarkLine(opts, config, context); } drawLegend(opts.series, opts, config, context, opts.chartData); drawToolTipBridge(opts, config, context, process, eachSpacing, xAxisPoints); drawCanvas(opts, context); }, onAnimationFinish: function onAnimationFinish() { _this.uevent.trigger('renderComplete'); } }); break; case 'scatter': this.animationInstance = new Animation({ timing: opts.timing, duration: duration, onProcess: function onProcess(process) { context.clearRect(0, 0, opts.width, opts.height); if (opts.rotate) { contextRotate(context, opts); } drawYAxisGrid(categories, opts, config, context); drawXAxis(categories, opts, config, context); var _drawScatterDataPoints = drawScatterDataPoints(series, opts, config, context, process), xAxisPoints = _drawScatterDataPoints.xAxisPoints, calPoints = _drawScatterDataPoints.calPoints, eachSpacing = _drawScatterDataPoints.eachSpacing; opts.chartData.xAxisPoints = xAxisPoints; opts.chartData.calPoints = calPoints; opts.chartData.eachSpacing = eachSpacing; drawYAxis(series, opts, config, context); if (opts.enableMarkLine !== false && process === 1) { drawMarkLine(opts, config, context); } drawLegend(opts.series, opts, config, context, opts.chartData); drawToolTipBridge(opts, config, context, process, eachSpacing, xAxisPoints); drawCanvas(opts, context); }, onAnimationFinish: function onAnimationFinish() { _this.uevent.trigger('renderComplete'); } }); break; case 'bubble': this.animationInstance = new Animation({ timing: opts.timing, duration: duration, onProcess: function onProcess(process) { context.clearRect(0, 0, opts.width, opts.height); if (opts.rotate) { contextRotate(context, opts); } drawYAxisGrid(categories, opts, config, context); drawXAxis(categories, opts, config, context); var _drawBubbleDataPoints = drawBubbleDataPoints(series, opts, config, context, process), xAxisPoints = _drawBubbleDataPoints.xAxisPoints, calPoints = _drawBubbleDataPoints.calPoints, eachSpacing = _drawBubbleDataPoints.eachSpacing; opts.chartData.xAxisPoints = xAxisPoints; opts.chartData.calPoints = calPoints; opts.chartData.eachSpacing = eachSpacing; drawYAxis(series, opts, config, context); if (opts.enableMarkLine !== false && process === 1) { drawMarkLine(opts, config, context); } drawLegend(opts.series, opts, config, context, opts.chartData); drawToolTipBridge(opts, config, context, process, eachSpacing, xAxisPoints); drawCanvas(opts, context); }, onAnimationFinish: function onAnimationFinish() { _this.uevent.trigger('renderComplete'); } }); break; case 'mix': this.animationInstance = new Animation({ timing: opts.timing, duration: duration, onProcess: function onProcess(process) { context.clearRect(0, 0, opts.width, opts.height); if (opts.rotate) { contextRotate(context, opts); } drawYAxisGrid(categories, opts, config, context); drawXAxis(categories, opts, config, context); var _drawMixDataPoints = drawMixDataPoints(series, opts, config, context, process), xAxisPoints = _drawMixDataPoints.xAxisPoints, calPoints = _drawMixDataPoints.calPoints, eachSpacing = _drawMixDataPoints.eachSpacing; opts.chartData.xAxisPoints = xAxisPoints; opts.chartData.calPoints = calPoints; opts.chartData.eachSpacing = eachSpacing; drawYAxis(series, opts, config, context); if (opts.enableMarkLine !== false && process === 1) { drawMarkLine(opts, config, context); } drawLegend(opts.series, opts, config, context, opts.chartData); drawToolTipBridge(opts, config, context, process, eachSpacing, xAxisPoints); drawCanvas(opts, context); }, onAnimationFinish: function onAnimationFinish() { _this.uevent.trigger('renderComplete'); } }); break; case 'column': this.animationInstance = new Animation({ timing: opts.timing, duration: duration, onProcess: function onProcess(process) { context.clearRect(0, 0, opts.width, opts.height); if (opts.rotate) { contextRotate(context, opts); } drawYAxisGrid(categories, opts, config, context); drawXAxis(categories, opts, config, context); var _drawColumnDataPoints = drawColumnDataPoints(series, opts, config, context, process), xAxisPoints = _drawColumnDataPoints.xAxisPoints, calPoints = _drawColumnDataPoints.calPoints, eachSpacing = _drawColumnDataPoints.eachSpacing; opts.chartData.xAxisPoints = xAxisPoints; opts.chartData.calPoints = calPoints; opts.chartData.eachSpacing = eachSpacing; drawYAxis(series, opts, config, context); if (opts.enableMarkLine !== false && process === 1) { drawMarkLine(opts, config, context); } drawLegend(opts.series, opts, config, context, opts.chartData); drawToolTipBridge(opts, config, context, process, eachSpacing, xAxisPoints); drawCanvas(opts, context); }, onAnimationFinish: function onAnimationFinish() { _this.uevent.trigger('renderComplete'); } }); break; case 'mount': this.animationInstance = new Animation({ timing: opts.timing, duration: duration, onProcess: function onProcess(process) { context.clearRect(0, 0, opts.width, opts.height); if (opts.rotate) { contextRotate(context, opts); } drawYAxisGrid(categories, opts, config, context); drawXAxis(categories, opts, config, context); var _drawMountDataPoints = drawMountDataPoints(series, opts, config, context, process), xAxisPoints = _drawMountDataPoints.xAxisPoints, calPoints = _drawMountDataPoints.calPoints, eachSpacing = _drawMountDataPoints.eachSpacing; opts.chartData.xAxisPoints = xAxisPoints; opts.chartData.calPoints = calPoints; opts.chartData.eachSpacing = eachSpacing; drawYAxis(series, opts, config, context); if (opts.enableMarkLine !== false && process === 1) { drawMarkLine(opts, config, context); } drawLegend(opts.series, opts, config, context, opts.chartData); drawToolTipBridge(opts, config, context, process, eachSpacing, xAxisPoints); drawCanvas(opts, context); }, onAnimationFinish: function onAnimationFinish() { _this.uevent.trigger('renderComplete'); } }); break; case 'bar': this.animationInstance = new Animation({ timing: opts.timing, duration: duration, onProcess: function onProcess(process) { context.clearRect(0, 0, opts.width, opts.height); if (opts.rotate) { contextRotate(context, opts); } drawXAxis(categories, opts, config, context); var _drawBarDataPoints = drawBarDataPoints(series, opts, config, context, process), yAxisPoints = _drawBarDataPoints.yAxisPoints, calPoints = _drawBarDataPoints.calPoints, eachSpacing = _drawBarDataPoints.eachSpacing; opts.chartData.yAxisPoints = yAxisPoints; opts.chartData.xAxisPoints = opts.chartData.xAxisData.xAxisPoints; opts.chartData.calPoints = calPoints; opts.chartData.eachSpacing = eachSpacing; drawYAxis(series, opts, config, context); if (opts.enableMarkLine !== false && process === 1) { drawMarkLine(opts, config, context); } drawLegend(opts.series, opts, config, context, opts.chartData); drawToolTipBridge(opts, config, context, process, eachSpacing, yAxisPoints); drawCanvas(opts, context); }, onAnimationFinish: function onAnimationFinish() { _this.uevent.trigger('renderComplete'); } }); break; case 'area': this.animationInstance = new Animation({ timing: opts.timing, duration: duration, onProcess: function onProcess(process) { context.clearRect(0, 0, opts.width, opts.height); if (opts.rotate) { contextRotate(context, opts); } drawYAxisGrid(categories, opts, config, context); drawXAxis(categories, opts, config, context); var _drawAreaDataPoints = drawAreaDataPoints(series, opts, config, context, process), xAxisPoints = _drawAreaDataPoints.xAxisPoints, calPoints = _drawAreaDataPoints.calPoints, eachSpacing = _drawAreaDataPoints.eachSpacing; opts.chartData.xAxisPoints = xAxisPoints; opts.chartData.calPoints = calPoints; opts.chartData.eachSpacing = eachSpacing; drawYAxis(series, opts, config, context); if (opts.enableMarkLine !== false && process === 1) { drawMarkLine(opts, config, context); } drawLegend(opts.series, opts, config, context, opts.chartData); drawToolTipBridge(opts, config, context, process, eachSpacing, xAxisPoints); drawCanvas(opts, context); }, onAnimationFinish: function onAnimationFinish() { _this.uevent.trigger('renderComplete'); } }); break; case 'ring': this.animationInstance = new Animation({ timing: opts.timing, duration: duration, onProcess: function onProcess(process) { context.clearRect(0, 0, opts.width, opts.height); if (opts.rotate) { contextRotate(context, opts); } opts.chartData.pieData = drawPieDataPoints(series, opts, config, context, process); drawLegend(opts.series, opts, config, context, opts.chartData); drawToolTipBridge(opts, config, context, process); drawCanvas(opts, context); }, onAnimationFinish: function onAnimationFinish() { _this.uevent.trigger('renderComplete'); } }); break; case 'pie': this.animationInstance = new Animation({ timing: opts.timing, duration: duration, onProcess: function onProcess(process) { context.clearRect(0, 0, opts.width, opts.height); if (opts.rotate) { contextRotate(context, opts); } opts.chartData.pieData = drawPieDataPoints(series, opts, config, context, process); drawLegend(opts.series, opts, config, context, opts.chartData); drawToolTipBridge(opts, config, context, process); drawCanvas(opts, context); }, onAnimationFinish: function onAnimationFinish() { _this.uevent.trigger('renderComplete'); } }); break; case 'rose': this.animationInstance = new Animation({ timing: opts.timing, duration: duration, onProcess: function onProcess(process) { context.clearRect(0, 0, opts.width, opts.height); if (opts.rotate) { contextRotate(context, opts); } opts.chartData.pieData = drawRoseDataPoints(series, opts, config, context, process); drawLegend(opts.series, opts, config, context, opts.chartData); drawToolTipBridge(opts, config, context, process); drawCanvas(opts, context); }, onAnimationFinish: function onAnimationFinish() { _this.uevent.trigger('renderComplete'); } }); break; case 'radar': this.animationInstance = new Animation({ timing: opts.timing, duration: duration, onProcess: function onProcess(process) { context.clearRect(0, 0, opts.width, opts.height); if (opts.rotate) { contextRotate(context, opts); } opts.chartData.radarData = drawRadarDataPoints(series, opts, config, context, process); drawLegend(opts.series, opts, config, context, opts.chartData); drawToolTipBridge(opts, config, context, process); drawCanvas(opts, context); }, onAnimationFinish: function onAnimationFinish() { _this.uevent.trigger('renderComplete'); } }); break; case 'arcbar': this.animationInstance = new Animation({ timing: opts.timing, duration: duration, onProcess: function onProcess(process) { context.clearRect(0, 0, opts.width, opts.height); if (opts.rotate) { contextRotate(context, opts); } opts.chartData.arcbarData = drawArcbarDataPoints(series, opts, config, context, process); drawCanvas(opts, context); }, onAnimationFinish: function onAnimationFinish() { _this.uevent.trigger('renderComplete'); } }); break; case 'gauge': this.animationInstance = new Animation({ timing: opts.timing, duration: duration, onProcess: function onProcess(process) { context.clearRect(0, 0, opts.width, opts.height); if (opts.rotate) { contextRotate(context, opts); } opts.chartData.gaugeData = drawGaugeDataPoints(categories, series, opts, config, context, process); drawCanvas(opts, context); }, onAnimationFinish: function onAnimationFinish() { _this.uevent.trigger('renderComplete'); } }); break; case 'candle': this.animationInstance = new Animation({ timing: opts.timing, duration: duration, onProcess: function onProcess(process) { context.clearRect(0, 0, opts.width, opts.height); if (opts.rotate) { contextRotate(context, opts); } drawYAxisGrid(categories, opts, config, context); drawXAxis(categories, opts, config, context); var _drawCandleDataPoints = drawCandleDataPoints(series, seriesMA, opts, config, context, process), xAxisPoints = _drawCandleDataPoints.xAxisPoints, calPoints = _drawCandleDataPoints.calPoints, eachSpacing = _drawCandleDataPoints.eachSpacing; opts.chartData.xAxisPoints = xAxisPoints; opts.chartData.calPoints = calPoints; opts.chartData.eachSpacing = eachSpacing; drawYAxis(series, opts, config, context); if (opts.enableMarkLine !== false && process === 1) { drawMarkLine(opts, config, context); } if (seriesMA) { drawLegend(seriesMA, opts, config, context, opts.chartData); } else { drawLegend(opts.series, opts, config, context, opts.chartData); } drawToolTipBridge(opts, config, context, process, eachSpacing, xAxisPoints); drawCanvas(opts, context); }, onAnimationFinish: function onAnimationFinish() { _this.uevent.trigger('renderComplete'); } }); break; } }
function uChartsEvent() { this.events = {}; }
uChartsEvent.prototype.addEventListener = function(type, listener) { this.events[type] = this.events[type] || []; this.events[type].push(listener); };
uChartsEvent.prototype.delEventListener = function(type) { this.events[type] = []; };
uChartsEvent.prototype.trigger = function() { for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) { args[_key] = arguments[_key]; } var type = args[0]; var params = args.slice(1); if (!!this.events[type]) { this.events[type].forEach(function(listener) { try { listener.apply(null, params); } catch (e) { //console.log('[uCharts] '+e);
} }); } };
var uCharts = function uCharts(opts) { opts.pix = opts.pixelRatio ? opts.pixelRatio : 1; opts.fontSize = opts.fontSize ? opts.fontSize : 13; opts.fontColor = opts.fontColor ? opts.fontColor : config.fontColor; if (opts.background == "" || opts.background == "none") { opts.background = "#FFFFFF" } opts.title = assign({}, opts.title); opts.subtitle = assign({}, opts.subtitle); opts.duration = opts.duration ? opts.duration : 1000; opts.yAxis = assign({}, { data: [], showTitle: false, disabled: false, disableGrid: false, gridSet: 'number', splitNumber: 5, gridType: 'solid', dashLength: 4 * opts.pix, gridColor: '#cccccc', padding: 10, fontColor: '#666666' }, opts.yAxis); opts.xAxis = assign({}, { rotateLabel: false, rotateAngle:45, disabled: false, disableGrid: false, splitNumber: 5, calibration:false, fontColor: '#666666', fontSize: 13, lineHeight: 20, marginTop: 0, gridType: 'solid', dashLength: 4, scrollAlign: 'left', boundaryGap: 'center', axisLine: true, axisLineColor: '#cccccc', titleFontSize: 13, titleOffsetY: 0, titleOffsetX: 0, titleFontColor: '#666666' }, opts.xAxis); opts.xAxis.scrollPosition = opts.xAxis.scrollAlign; opts.legend = assign({}, { show: true, position: 'bottom', float: 'center', backgroundColor: 'rgba(0,0,0,0)', borderColor: 'rgba(0,0,0,0)', borderWidth: 0, padding: 5, margin: 5, itemGap: 10, fontSize: opts.fontSize, lineHeight: opts.fontSize, fontColor: opts.fontColor, formatter: {}, hiddenColor: '#CECECE' }, opts.legend); opts.extra = assign({ tooltip:{ legendShape: 'auto' } }, opts.extra); opts.rotate = opts.rotate ? true : false; opts.animation = opts.animation ? true : false; opts.rotate = opts.rotate ? true : false; opts.canvas2d = opts.canvas2d ? true : false; let config$$1 = assign({}, config); config$$1.color = opts.color ? opts.color : config$$1.color; if (opts.type == 'pie') { config$$1.pieChartLinePadding = opts.dataLabel === false ? 0 : opts.extra.pie.labelWidth * opts.pix || config$$1.pieChartLinePadding * opts.pix; } if (opts.type == 'ring') { config$$1.pieChartLinePadding = opts.dataLabel === false ? 0 : opts.extra.ring.labelWidth * opts.pix || config$$1.pieChartLinePadding * opts.pix; } if (opts.type == 'rose') { config$$1.pieChartLinePadding = opts.dataLabel === false ? 0 : opts.extra.rose.labelWidth * opts.pix || config$$1.pieChartLinePadding * opts.pix; } config$$1.pieChartTextPadding = opts.dataLabel === false ? 0 : config$$1.pieChartTextPadding * opts.pix;
//屏幕旋转
config$$1.rotate = opts.rotate; if (opts.rotate) { let tempWidth = opts.width; let tempHeight = opts.height; opts.width = tempHeight; opts.height = tempWidth; }
//适配高分屏
opts.padding = opts.padding ? opts.padding : config$$1.padding; config$$1.yAxisWidth = config.yAxisWidth * opts.pix; config$$1.fontSize = opts.fontSize * opts.pix; config$$1.titleFontSize = config.titleFontSize * opts.pix; config$$1.subtitleFontSize = config.subtitleFontSize * opts.pix; if(!opts.context){ throw new Error('[uCharts] 未获取到context!注意:v2.0版本后,需要自行获取canvas的绘图上下文并传入opts.context!'); } this.context = opts.context; if (!this.context.setTextAlign) { this.context.setStrokeStyle = function(e) { return this.strokeStyle = e; } this.context.setLineWidth = function(e) { return this.lineWidth = e; } this.context.setLineCap = function(e) { return this.lineCap = e; } this.context.setFontSize = function(e) { return this.font = e + "px sans-serif"; } this.context.setFillStyle = function(e) { return this.fillStyle = e; } this.context.setTextAlign = function(e) { return this.textAlign = e; } this.context.setTextBaseline = function(e) { return this.textBaseline = e; } this.context.setShadow = function(offsetX,offsetY,blur,color) { this.shadowColor = color; this.shadowOffsetX = offsetX; this.shadowOffsetY = offsetY; this.shadowBlur = blur; } this.context.draw = function() {} } //兼容NVUEsetLineDash
if(!this.context.setLineDash){ this.context.setLineDash = function(e) {} } opts.chartData = {}; this.uevent = new uChartsEvent(); this.scrollOption = { currentOffset: 0, startTouchX: 0, distance: 0, lastMoveTime: 0 }; this.opts = opts; this.config = config$$1; drawCharts.call(this, opts.type, opts, config$$1, this.context); };
uCharts.prototype.updateData = function() { let data = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {}; this.opts = assign({}, this.opts, data); this.opts.updateData = true; let scrollPosition = data.scrollPosition || 'current'; switch (scrollPosition) { case 'current': this.opts._scrollDistance_ = this.scrollOption.currentOffset; break; case 'left': this.opts._scrollDistance_ = 0; this.scrollOption = { currentOffset: 0, startTouchX: 0, distance: 0, lastMoveTime: 0 }; break; case 'right': let _calYAxisData = calYAxisData(this.opts.series, this.opts, this.config, this.context), yAxisWidth = _calYAxisData.yAxisWidth; this.config.yAxisWidth = yAxisWidth; let offsetLeft = 0; let _getXAxisPoints0 = getXAxisPoints(this.opts.categories, this.opts, this.config), xAxisPoints = _getXAxisPoints0.xAxisPoints, startX = _getXAxisPoints0.startX, endX = _getXAxisPoints0.endX, eachSpacing = _getXAxisPoints0.eachSpacing; let totalWidth = eachSpacing * (xAxisPoints.length - 1); let screenWidth = endX - startX; offsetLeft = screenWidth - totalWidth; this.scrollOption = { currentOffset: offsetLeft, startTouchX: offsetLeft, distance: 0, lastMoveTime: 0 }; this.opts._scrollDistance_ = offsetLeft; break; } drawCharts.call(this, this.opts.type, this.opts, this.config, this.context); };
uCharts.prototype.zoom = function() { var val = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : this.opts.xAxis.itemCount; if (this.opts.enableScroll !== true) { console.log('[uCharts] 请启用滚动条后使用') return; } //当前屏幕中间点
let centerPoint = Math.round(Math.abs(this.scrollOption.currentOffset) / this.opts.chartData.eachSpacing) + Math.round(this.opts.xAxis.itemCount / 2); this.opts.animation = false; this.opts.xAxis.itemCount = val.itemCount; //重新计算x轴偏移距离
let _calYAxisData = calYAxisData(this.opts.series, this.opts, this.config, this.context), yAxisWidth = _calYAxisData.yAxisWidth; this.config.yAxisWidth = yAxisWidth; let offsetLeft = 0; let _getXAxisPoints0 = getXAxisPoints(this.opts.categories, this.opts, this.config), xAxisPoints = _getXAxisPoints0.xAxisPoints, startX = _getXAxisPoints0.startX, endX = _getXAxisPoints0.endX, eachSpacing = _getXAxisPoints0.eachSpacing; let centerLeft = eachSpacing * centerPoint; let screenWidth = endX - startX; let MaxLeft = screenWidth - eachSpacing * (xAxisPoints.length - 1); offsetLeft = screenWidth / 2 - centerLeft; if (offsetLeft > 0) { offsetLeft = 0; } if (offsetLeft < MaxLeft) { offsetLeft = MaxLeft; } this.scrollOption = { currentOffset: offsetLeft, startTouchX: 0, distance: 0, lastMoveTime: 0 }; calValidDistance(this, offsetLeft, this.opts.chartData, this.config, this.opts); this.opts._scrollDistance_ = offsetLeft; drawCharts.call(this, this.opts.type, this.opts, this.config, this.context); };
uCharts.prototype.dobuleZoom = function(e) { if (this.opts.enableScroll !== true) { console.log('[uCharts] 请启用滚动条后使用') return; } const tcs = e.changedTouches; if (tcs.length < 2) { return; } for (var i = 0; i < tcs.length; i++) { tcs[i].x = tcs[i].x ? tcs[i].x : tcs[i].clientX; tcs[i].y = tcs[i].y ? tcs[i].y : tcs[i].clientY; } const ntcs = [getTouches(tcs[0], this.opts, e),getTouches(tcs[1], this.opts, e)]; const xlength = Math.abs(ntcs[0].x - ntcs[1].x); // 记录初始的两指之间的数据
if(!this.scrollOption.moveCount){ let cts0 = {changedTouches:[{x:tcs[0].x,y:this.opts.area[0] / this.opts.pix + 2}]}; let cts1 = {changedTouches:[{x:tcs[1].x,y:this.opts.area[0] / this.opts.pix + 2}]}; if(this.opts.rotate){ cts0 = {changedTouches:[{x:this.opts.height / this.opts.pix - this.opts.area[0] / this.opts.pix - 2,y:tcs[0].y}]}; cts1 = {changedTouches:[{x:this.opts.height / this.opts.pix - this.opts.area[0] / this.opts.pix - 2,y:tcs[1].y}]}; } const moveCurrent1 = this.getCurrentDataIndex(cts0).index; const moveCurrent2 = this.getCurrentDataIndex(cts1).index; const moveCount = Math.abs(moveCurrent1 - moveCurrent2); this.scrollOption.moveCount = moveCount; this.scrollOption.moveCurrent1 = Math.min(moveCurrent1, moveCurrent2); this.scrollOption.moveCurrent2 = Math.max(moveCurrent1, moveCurrent2); return; } let currentEachSpacing = xlength / this.scrollOption.moveCount; let itemCount = (this.opts.width - this.opts.area[1] - this.opts.area[3]) / currentEachSpacing; itemCount = itemCount <= 2 ? 2 : itemCount; itemCount = itemCount >= this.opts.categories.length ? this.opts.categories.length : itemCount; this.opts.animation = false; this.opts.xAxis.itemCount = itemCount; // 重新计算滚动条偏移距离
let offsetLeft = 0; let _getXAxisPoints0 = getXAxisPoints(this.opts.categories, this.opts, this.config), xAxisPoints = _getXAxisPoints0.xAxisPoints, startX = _getXAxisPoints0.startX, endX = _getXAxisPoints0.endX, eachSpacing = _getXAxisPoints0.eachSpacing; let currentLeft = eachSpacing * this.scrollOption.moveCurrent1; let screenWidth = endX - startX; let MaxLeft = screenWidth - eachSpacing * (xAxisPoints.length - 1); offsetLeft = -currentLeft+Math.min(ntcs[0].x,ntcs[1].x)-this.opts.area[3]-eachSpacing; if (offsetLeft > 0) { offsetLeft = 0; } if (offsetLeft < MaxLeft) { offsetLeft = MaxLeft; } this.scrollOption.currentOffset= offsetLeft; this.scrollOption.startTouchX= 0; this.scrollOption.distance=0; calValidDistance(this, offsetLeft, this.opts.chartData, this.config, this.opts); this.opts._scrollDistance_ = offsetLeft; drawCharts.call(this, this.opts.type, this.opts, this.config, this.context); }
uCharts.prototype.stopAnimation = function() { this.animationInstance && this.animationInstance.stop(); };
uCharts.prototype.addEventListener = function(type, listener) { this.uevent.addEventListener(type, listener); };
uCharts.prototype.delEventListener = function(type) { this.uevent.delEventListener(type); };
uCharts.prototype.getCurrentDataIndex = function(e) { var touches = null; if (e.changedTouches) { touches = e.changedTouches[0]; } else { touches = e.mp.changedTouches[0]; } if (touches) { let _touches$ = getTouches(touches, this.opts, e); if (this.opts.type === 'pie' || this.opts.type === 'ring') { return findPieChartCurrentIndex({ x: _touches$.x, y: _touches$.y }, this.opts.chartData.pieData, this.opts); } else if (this.opts.type === 'rose') { return findRoseChartCurrentIndex({ x: _touches$.x, y: _touches$.y }, this.opts.chartData.pieData, this.opts); } else if (this.opts.type === 'radar') { return findRadarChartCurrentIndex({ x: _touches$.x, y: _touches$.y }, this.opts.chartData.radarData, this.opts.categories.length); } else if (this.opts.type === 'funnel') { return findFunnelChartCurrentIndex({ x: _touches$.x, y: _touches$.y }, this.opts.chartData.funnelData); } else if (this.opts.type === 'map') { return findMapChartCurrentIndex({ x: _touches$.x, y: _touches$.y }, this.opts); } else if (this.opts.type === 'word') { return findWordChartCurrentIndex({ x: _touches$.x, y: _touches$.y }, this.opts.chartData.wordCloudData); } else if (this.opts.type === 'bar') { return findBarChartCurrentIndex({ x: _touches$.x, y: _touches$.y }, this.opts.chartData.calPoints, this.opts, this.config, Math.abs(this.scrollOption.currentOffset)); } else { return findCurrentIndex({ x: _touches$.x, y: _touches$.y }, this.opts.chartData.calPoints, this.opts, this.config, Math.abs(this.scrollOption.currentOffset)); } } return -1; };
uCharts.prototype.getLegendDataIndex = function(e) { var touches = null; if (e.changedTouches) { touches = e.changedTouches[0]; } else { touches = e.mp.changedTouches[0]; } if (touches) { let _touches$ = getTouches(touches, this.opts, e); return findLegendIndex({ x: _touches$.x, y: _touches$.y }, this.opts.chartData.legendData); } return -1; };
uCharts.prototype.touchLegend = function(e) { var option = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {}; var touches = null; if (e.changedTouches) { touches = e.changedTouches[0]; } else { touches = e.mp.changedTouches[0]; } if (touches) { var _touches$ = getTouches(touches, this.opts, e); var index = this.getLegendDataIndex(e); if (index >= 0) { if (this.opts.type == 'candle') { this.opts.seriesMA[index].show = !this.opts.seriesMA[index].show; } else { this.opts.series[index].show = !this.opts.series[index].show; } this.opts.animation = option.animation ? true : false; this.opts._scrollDistance_ = this.scrollOption.currentOffset; drawCharts.call(this, this.opts.type, this.opts, this.config, this.context); } }
};
uCharts.prototype.showToolTip = function(e) { var option = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {}; var touches = null; if (e.changedTouches) { touches = e.changedTouches[0]; } else { touches = e.mp.changedTouches[0]; } if (!touches) { console.log("[uCharts] 未获取到event坐标信息"); } var _touches$ = getTouches(touches, this.opts, e); var currentOffset = this.scrollOption.currentOffset; var opts = assign({}, this.opts, { _scrollDistance_: currentOffset, animation: false }); if (this.opts.type === 'line' || this.opts.type === 'area' || this.opts.type === 'column' || this.opts.type === 'scatter' || this.opts.type === 'bubble') { var current = this.getCurrentDataIndex(e); var index = option.index == undefined ? current.index : option.index; if (index > -1 || index.length>0) { var seriesData = getSeriesDataItem(this.opts.series, index, current.group); if (seriesData.length !== 0) { var _getToolTipData = getToolTipData(seriesData, this.opts, index, current.group, this.opts.categories, option), textList = _getToolTipData.textList, offset = _getToolTipData.offset; offset.y = _touches$.y; opts.tooltip = { textList: option.textList !== undefined ? option.textList : textList, offset: option.offset !== undefined ? option.offset : offset, option: option, index: index, group: current.group }; } } drawCharts.call(this, opts.type, opts, this.config, this.context); } if (this.opts.type === 'mount') { var index = option.index == undefined ? this.getCurrentDataIndex(e).index : option.index; if (index > -1) { var opts = assign({}, this.opts, {animation: false}); var seriesData = assign({}, opts._series_[index]); var textList = [{ text: option.formatter ? option.formatter(seriesData, undefined, index, opts) : seriesData.name + ': ' + seriesData.data, color: seriesData.color, legendShape: this.opts.extra.tooltip.legendShape == 'auto' ? seriesData.legendShape : this.opts.extra.tooltip.legendShape }]; var offset = { x: opts.chartData.calPoints[index].x, y: _touches$.y }; opts.tooltip = { textList: option.textList ? option.textList : textList, offset: option.offset !== undefined ? option.offset : offset, option: option, index: index }; } drawCharts.call(this, opts.type, opts, this.config, this.context); } if (this.opts.type === 'bar') { var current = this.getCurrentDataIndex(e); var index = option.index == undefined ? current.index : option.index; if (index > -1 || index.length>0) { var seriesData = getSeriesDataItem(this.opts.series, index, current.group); if (seriesData.length !== 0) { var _getToolTipData = getToolTipData(seriesData, this.opts, index, current.group, this.opts.categories, option), textList = _getToolTipData.textList, offset = _getToolTipData.offset; offset.x = _touches$.x; opts.tooltip = { textList: option.textList !== undefined ? option.textList : textList, offset: option.offset !== undefined ? option.offset : offset, option: option, index: index }; } } drawCharts.call(this, opts.type, opts, this.config, this.context); } if (this.opts.type === 'mix') { var current = this.getCurrentDataIndex(e); var index = option.index == undefined ? current.index : option.index; if (index > -1) { var currentOffset = this.scrollOption.currentOffset; var opts = assign({}, this.opts, { _scrollDistance_: currentOffset, animation: false }); var seriesData = getSeriesDataItem(this.opts.series, index); if (seriesData.length !== 0) { var _getMixToolTipData = getMixToolTipData(seriesData, this.opts, index, this.opts.categories, option), textList = _getMixToolTipData.textList, offset = _getMixToolTipData.offset; offset.y = _touches$.y; opts.tooltip = { textList: option.textList ? option.textList : textList, offset: option.offset !== undefined ? option.offset : offset, option: option, index: index }; } } drawCharts.call(this, opts.type, opts, this.config, this.context); } if (this.opts.type === 'candle') { var current = this.getCurrentDataIndex(e); var index = option.index == undefined ? current.index : option.index; if (index > -1) { var currentOffset = this.scrollOption.currentOffset; var opts = assign({}, this.opts, { _scrollDistance_: currentOffset, animation: false }); var seriesData = getSeriesDataItem(this.opts.series, index); if (seriesData.length !== 0) { var _getToolTipData = getCandleToolTipData(this.opts.series[0].data, seriesData, this.opts, index, this.opts.categories, this.opts.extra.candle, option), textList = _getToolTipData.textList, offset = _getToolTipData.offset; offset.y = _touches$.y; opts.tooltip = { textList: option.textList ? option.textList : textList, offset: option.offset !== undefined ? option.offset : offset, option: option, index: index }; } } drawCharts.call(this, opts.type, opts, this.config, this.context); } if (this.opts.type === 'pie' || this.opts.type === 'ring' || this.opts.type === 'rose' || this.opts.type === 'funnel') { var index = option.index == undefined ? this.getCurrentDataIndex(e) : option.index; if (index > -1) { var opts = assign({}, this.opts, {animation: false}); var seriesData = assign({}, opts._series_[index]); var textList = [{ text: option.formatter ? option.formatter(seriesData, undefined, index, opts) : seriesData.name + ': ' + seriesData.data, color: seriesData.color, legendShape: this.opts.extra.tooltip.legendShape == 'auto' ? seriesData.legendShape : this.opts.extra.tooltip.legendShape }]; var offset = { x: _touches$.x, y: _touches$.y }; opts.tooltip = { textList: option.textList ? option.textList : textList, offset: option.offset !== undefined ? option.offset : offset, option: option, index: index }; } drawCharts.call(this, opts.type, opts, this.config, this.context); } if (this.opts.type === 'map') { var index = option.index == undefined ? this.getCurrentDataIndex(e) : option.index; if (index > -1) { var opts = assign({}, this.opts, {animation: false}); var seriesData = assign({}, this.opts.series[index]); seriesData.name = seriesData.properties.name var textList = [{ text: option.formatter ? option.formatter(seriesData, undefined, index, this.opts) : seriesData.name, color: seriesData.color, legendShape: this.opts.extra.tooltip.legendShape == 'auto' ? seriesData.legendShape : this.opts.extra.tooltip.legendShape }]; var offset = { x: _touches$.x, y: _touches$.y }; opts.tooltip = { textList: option.textList ? option.textList : textList, offset: option.offset !== undefined ? option.offset : offset, option: option, index: index }; } opts.updateData = false; drawCharts.call(this, opts.type, opts, this.config, this.context); } if (this.opts.type === 'word') { var index = option.index == undefined ? this.getCurrentDataIndex(e) : option.index; if (index > -1) { var opts = assign({}, this.opts, {animation: false}); var seriesData = assign({}, this.opts.series[index]); var textList = [{ text: option.formatter ? option.formatter(seriesData, undefined, index, this.opts) : seriesData.name, color: seriesData.color, legendShape: this.opts.extra.tooltip.legendShape == 'auto' ? seriesData.legendShape : this.opts.extra.tooltip.legendShape }]; var offset = { x: _touches$.x, y: _touches$.y }; opts.tooltip = { textList: option.textList ? option.textList : textList, offset: option.offset !== undefined ? option.offset : offset, option: option, index: index }; } opts.updateData = false; drawCharts.call(this, opts.type, opts, this.config, this.context); } if (this.opts.type === 'radar') { var index = option.index == undefined ? this.getCurrentDataIndex(e) : option.index; if (index > -1) { var opts = assign({}, this.opts, {animation: false}); var seriesData = getSeriesDataItem(this.opts.series, index); if (seriesData.length !== 0) { var textList = seriesData.map((item) => { return { text: option.formatter ? option.formatter(item, this.opts.categories[index], index, this.opts) : item.name + ': ' + item.data, color: item.color, legendShape: this.opts.extra.tooltip.legendShape == 'auto' ? item.legendShape : this.opts.extra.tooltip.legendShape }; }); var offset = { x: _touches$.x, y: _touches$.y }; opts.tooltip = { textList: option.textList ? option.textList : textList, offset: option.offset !== undefined ? option.offset : offset, option: option, index: index }; } } drawCharts.call(this, opts.type, opts, this.config, this.context); } };
uCharts.prototype.translate = function(distance) { this.scrollOption = { currentOffset: distance, startTouchX: distance, distance: 0, lastMoveTime: 0 }; let opts = assign({}, this.opts, { _scrollDistance_: distance, animation: false }); drawCharts.call(this, this.opts.type, opts, this.config, this.context); };
uCharts.prototype.scrollStart = function(e) { var touches = null; if (e.changedTouches) { touches = e.changedTouches[0]; } else { touches = e.mp.changedTouches[0]; } var _touches$ = getTouches(touches, this.opts, e); if (touches && this.opts.enableScroll === true) { this.scrollOption.startTouchX = _touches$.x; } };
uCharts.prototype.scroll = function(e) { if (this.scrollOption.lastMoveTime === 0) { this.scrollOption.lastMoveTime = Date.now(); } let Limit = this.opts.touchMoveLimit || 60; let currMoveTime = Date.now(); let duration = currMoveTime - this.scrollOption.lastMoveTime; if (duration < Math.floor(1000 / Limit)) return; if (this.scrollOption.startTouchX == 0) return; this.scrollOption.lastMoveTime = currMoveTime; var touches = null; if (e.changedTouches) { touches = e.changedTouches[0]; } else { touches = e.mp.changedTouches[0]; } if (touches && this.opts.enableScroll === true) { var _touches$ = getTouches(touches, this.opts, e); var _distance; _distance = _touches$.x - this.scrollOption.startTouchX; var currentOffset = this.scrollOption.currentOffset; var validDistance = calValidDistance(this, currentOffset + _distance, this.opts.chartData, this.config, this.opts); this.scrollOption.distance = _distance = validDistance - currentOffset; var opts = assign({}, this.opts, { _scrollDistance_: currentOffset + _distance, animation: false }); this.opts = opts; drawCharts.call(this, opts.type, opts, this.config, this.context); return currentOffset + _distance; } };
uCharts.prototype.scrollEnd = function(e) { if (this.opts.enableScroll === true) { var _scrollOption = this.scrollOption, currentOffset = _scrollOption.currentOffset, distance = _scrollOption.distance; this.scrollOption.currentOffset = currentOffset + distance; this.scrollOption.distance = 0; this.scrollOption.moveCount = 0; } };
export default uCharts;
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