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chanyishenghuo-uniapp/components/u-charts/u-charts.js

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/*
* uCharts v1.8.5.20190815
* uni-app平台高性能跨全端图表，支持H5、APP、小程序（微信/支付宝/百度/头条/QQ/360）
* Copyright (c) 2019 QIUN秋云 https://www.ucharts.cn All rights reserved.
* Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
*
* uCharts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 = {
yAxisWidth: 15,
yAxisSplit: 5,
xAxisHeight: 15,
xAxisLineHeight: 15,
legendHeight: 15,
yAxisTitleWidth: 15,
padding: [10, 10, 10, 10],
pixelRatio: 1,
rotate: false,
columePadding: 3,
fontSize: 13,
//dataPointShape: ['diamond', 'circle', 'triangle', 'rect'],
dataPointShape: ['circle', 'circle', 'circle', 'circle'],
colors: ['#1890ff', '#2fc25b', '#facc14', '#f04864', '#8543e0', '#90ed7d'],
pieChartLinePadding: 15,
pieChartTextPadding: 5,
xAxisTextPadding: 3,
titleColor: '#333333',
titleFontSize: 20,
subtitleColor: '#999999',
subtitleFontSize: 15,
toolTipPadding: 3,
toolTipBackground: '#000000',
toolTipOpacity: 0.7,
toolTipLineHeight: 20,
radarGridCount: 3,
radarLabelTextMargin: 15,
gaugeLabelTextMargin: 15
};
let assign;
if (Object.assign) {
assign = Object.assign;
} else {
// 使用polyfill
assign = function(target, varArgs) {
if (target == null) {
throw new TypeError('Cannot convert undefined or null to object');
}
var to = Object(target);
for (var index = 1; index < arguments.length; index++) {
var nextSource = arguments[index];
if (nextSource != null) {
for (var nextKey in nextSource) {
if (Object.prototype.hasOwnProperty.call(nextSource, nextKey)) {
to[nextKey] = nextSource[nextKey];
}
}
}
}
return to;
}
}
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] unvalid series data!');
}
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') {
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(distance, chartData, config, opts) {
var dataChartAreaWidth = opts.width - opts.area[1] - opts.area[3];
var dataChartWidth = chartData.eachSpacing * (opts.chartData.xAxisData.xAxisPoints.length-1);
var validDistance = distance;
if (distance >= 0) {
validDistance = 0;
} else if (Math.abs(distance) >= dataChartWidth - dataChartAreaWidth) {
validDistance = dataChartAreaWidth - dataChartWidth;
}
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 calRotateTranslate(x, y, h) {
var xv = x;
var yv = h - y;
var transX = xv + (h - yv - xv) / Math.sqrt(2);
transX *= -1;
var transY = (h - yv) * (Math.sqrt(2) - 1) - (h - yv - xv) / Math.sqrt(2);
return {
transX: transX,
transY: transY
};
}
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;
}
}
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;
}
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 fillSeries(series, opts, config) {
var index = 0;
return series.map(function(item) {
if (!item.color) {
item.color = config.colors[index];
index = (index + 1) % config.colors.length;
}
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':
item.legendShape = "rect";
break;
case 'area':
item.legendShape = "triangle";
break;
default:
item.legendShape = "circle";
}
}
return item;
});
}
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) {
var fontSize = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : config.fontSize;
text = String(text);
var text = text.split('');
var width = 0;
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 (/[\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.pixelRatio;
x = (touches.pageY - e.currentTarget.offsetTop - (opts.height / opts.pixelRatio / 2) * (opts.pixelRatio - 1)) *
opts.pixelRatio;
} else {
x = touches.clientX * opts.pixelRatio;
y = (touches.pageY - e.currentTarget.offsetTop - (opts.height / opts.pixelRatio / 2) * (opts.pixelRatio - 1)) *
opts.pixelRatio;
}
} else {
if (opts.rotate) {
y = opts.height - touches.x * opts.pixelRatio;
x = touches.y * opts.pixelRatio;
} else {
x = touches.x * opts.pixelRatio;
y = touches.y * opts.pixelRatio;
}
}
return {
x: x,
y: y
}
}
function getSeriesDataItem(series, index) {
var data = [];
for (let i = 0; i < series.length; i++) {
let item = series[i];
if (item.data[index] !== null && typeof item.data[index] !== '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.name = item.name;
seriesItem.show = item.show;
seriesItem.data = item.format ? item.format(item.data[index]) : item.data[index];
data.push(seriesItem);
}
}
return data;
}
function getMaxTextListLength(list) {
var lengthList = list.map(function(item) {
return measureText(item);
});
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, calPoints, index, categories) {
var option = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : {};
var textList = seriesData.map(function(item) {
return {
text: option.format ? option.format(item, categories[index]) : item.name + ': ' + item.data,
color: item.color
};
});
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]);
}
}
for (let i = 0; i < validCalPoints.length; i++) {
let item = validCalPoints[i];
offset.x = Math.round(item.x);
offset.y += item.y;
}
offset.y /= validCalPoints.length;
return {
textList: textList,
offset: offset
};
}
function getMixToolTipData(seriesData, calPoints, index, categories) {
var option = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : {};
var textList = seriesData.map(function(item) {
return {
text: option.format ? option.format(item, categories[index]) : item.name + ': ' + item.data,
color: item.color,
disableLegend: item.disableLegend ? true : false
};
});
textList = textList.filter(function(item) {
if (item.disableLegend !== true) {
return item;
}
});
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]);
}
}
for (let i = 0; i < validCalPoints.length; i++) {
let item = validCalPoints[i];
offset.x = Math.round(item.x);
offset.y += item.y;
}
offset.y /= validCalPoints.length;
return {
textList: textList,
offset: offset
};
}
function getCandleToolTipData(series, seriesData, calPoints, index, categories, extra) {
var option = arguments.length > 6 && arguments[6] !== undefined ? arguments[6] : {};
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 = [];
let text0 = {
text: categories[index],
color: null
};
textList.push(text0);
seriesData.map(function(item) {
if (index == 0 && item.data[1] - item.data[0] < 0) {
color[1] = downColor;
} 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]
};
let text2 = {
text: '收盘：' + item.data[1],
color: color[1]
};
let text3 = {
text: '最低：' + item.data[2],
color: color[2]
};
let text4 = {
text: '最高：' + item.data[3],
color: color[3]
};
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, xAxisPoints, opts, config) {
var offset = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 0;
var currentIndex = -1;
var spacing = 0;
if((opts.type=='line' || opts.type=='area') && opts.xAxis.boundaryGap=='justify'){
spacing = opts.chartData.eachSpacing/2;
}
if (isInExactChartArea(currentPoints, opts, config)) {
xAxisPoints.forEach(function(item, index) {
if (currentPoints.x + offset + spacing > item) {
currentIndex = index;
}
});
}
return currentIndex;
}
function findLegendIndex(currentPoints, legendData, opts) {
let currentIndex = -1;
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 (currentPoints.x > area[0] && currentPoints.x < area[2] && currentPoints.y > area[1] && currentPoints.y < area[3]) {
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)){
currentIndex = i;
break;
}
}
return currentIndex;
}
function findPieChartCurrentIndex(currentPoints, pieData) {
var currentIndex = -1;
if (isInExactPieChartArea(currentPoints, pieData.center, pieData.radius)) {
var angle = Math.atan2(pieData.center.y - currentPoints.y, currentPoints.x - pieData.center.x);
angle = -angle;
for (var i = 0, len = pieData.series.length; i < len; i++) {
var item = pieData.series[i];
if (isInAngleRange(angle, item._start_, item._start_ + item._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) {
var newPoints = [];
var items = [];
points.forEach(function(item, index) {
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) {
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;
let margin = opts.legend.margin;
let fontSize = opts.legend.fontSize;
let shapeWidth = 15 * opts.pixelRatio;
let shapeRight = 5 * opts.pixelRatio;
let lineHeight = Math.max(opts.legend.lineHeight * opts.pixelRatio, 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];
let itemWidth = shapeWidth + shapeRight + measureText(item.name || 'undefined', fontSize) + opts.legend.itemGap;
if (widthCount + itemWidth > opts.width - opts.padding[1] - opts.padding[3]) {
legendList.push(currentRow);
widthCountArr.push(widthCount - opts.legend.itemGap);
widthCount = itemWidth;
currentRow = [item];
} else {
widthCount += itemWidth;
currentRow.push(item);
}
}
if (currentRow.length) {
legendList.push(currentRow);
widthCountArr.push(widthCount - opts.legend.itemGap);
legendData.widthArr = widthCountArr;
let legendWidth = Math.max.apply(null, widthCountArr);
switch (opts.legend.float) {
case 'left':
legendData.area.start.x = opts.padding[3];
legendData.area.end.x = opts.padding[3] + 2 * padding;
break;
case 'right':
legendData.area.start.x = opts.width - opts.padding[1] - legendWidth - 2 * padding;
legendData.area.end.x = opts.width - opts.padding[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.padding[0] - opts.padding[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.padding[0] + margin;
legendData.area.end.y = opts.padding[0] + margin + legendData.area.height;
break;
case 'bottom':
legendData.area.start.y = opts.height - opts.padding[2] - margin - legendData.area.height;
legendData.area.end.y = opts.height - opts.padding[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) + opts.legend.itemGap;
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 + 2 * padding;
legendData.area.wholeWidth = legendData.area.width + padding;
}
}
switch (opts.legend.position) {
case 'top':
legendData.area.start.y = opts.padding[0] + margin;
legendData.area.end.y = opts.padding[0] + margin + legendData.area.height;
break;
case 'bottom':
legendData.area.start.y = opts.height - opts.padding[2] - legendData.area.height - margin;
legendData.area.end.y = opts.height - opts.padding[2] - margin;
break;
case 'left':
legendData.area.start.x = opts.padding[3];
legendData.area.end.x = opts.padding[3] + legendData.area.width;
break;
case 'right':
legendData.area.start.x = opts.width - opts.padding[1] - legendData.area.width;
legendData.area.end.x = opts.width - opts.padding[1];
break;
}
chartData.legendData = legendData;
return legendData;
}
function calCategoriesData(categories, opts, config, eachSpacing) {
var result = {
angle: 0,
xAxisHeight: config.xAxisHeight
};
var categoriesTextLenth = categories.map(function(item) {
return measureText(item);
});
var maxTextLength = Math.max.apply(this, categoriesTextLenth);
if (opts.xAxis.rotateLabel == true && maxTextLength + 2 * config.xAxisTextPadding > eachSpacing) {
result.angle = 45 * Math.PI / 180;
result.xAxisHeight = 2 * config.xAxisTextPadding + maxTextLength * Math.sin(result.angle);
}
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.data = [];
each.data.forEach(function(item, index) {
let tmp = {};
tmp.angle = angleList[index];
tmp.proportion = item / maxData;
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) {
var process = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 1;
series = series.sort(function(a,b){return parseInt(b.data)-parseInt(a.data);});
for (let i = 0; i < series.length; i++) {
series[i].radius = series[i].data/series[0].data*radius*process;
series[i]._proportion_ = series[i].data/series[0].data;
}
return series.reverse();
}
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 || type == 'area') {
item._proportion_ = item.data / count * process;
item._rose_proportion_ = 1 / series.length * process;
} else {
item._proportion_ = item.data / count * process;
item._rose_proportion_ = item.data / count * process;
}
item._radius_ = minRadius + radiusLength * ((item.data - minData) / (maxData - minData));
}
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 == 'default') {
if (arcbarOption.endAngle < arcbarOption.startAngle) {
totalAngle = 2 + arcbarOption.endAngle - arcbarOption.startAngle;
} else{
totalAngle = arcbarOption.startAngle - arcbarOption.endAngle;
}
} else {
totalAngle = 2;
}
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 = startAngle - endAngle + 1;
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 = gaugeOption.startAngle - gaugeOption.endAngle + 1;
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) {
series = getPieDataPoints(series);
let maxLength = 0;
for (let i = 0; i < series.length; i++) {
let item = series[i];
let text = item.format ? item.format(+item._proportion_.toFixed(2)) : util.toFixed(item._proportion_ * 100) + '%';
maxLength = Math.max(maxLength, measureText(text));
}
return maxLength;
}
function fixColumeData(points, eachSpacing, columnLen, index, config, opts) {
return points.map(function(item) {
if (item === null) {
return null;
}
item.width = Math.ceil((eachSpacing - 2 * config.columePadding) / columnLen);
if (opts.extra.column && opts.extra.column.width && +opts.extra.column.width > 0) {
item.width = Math.min(item.width, +opts.extra.column.width);
}
if (item.width <= 0) {
item.width = 1;
}
item.x += (index + 0.5 - columnLen / 2) * item.width;
return item;
});
}
function fixColumeMeterData(points, eachSpacing, columnLen, index, config, opts, border) {
return points.map(function(item) {
if (item === null) {
return null;
}
item.width = Math.ceil((eachSpacing - 2 * config.columePadding) / 2);
if (opts.extra.column && opts.extra.column.width && +opts.extra.column.width > 0) {
item.width = Math.min(item.width, +opts.extra.column.width);
}
if (index > 0) {
item.width -= 2 * border;
}
return item;
});
}
function fixColumeStackData(points, eachSpacing, columnLen, index, config, opts, series) {
return points.map(function(item, indexn) {
if (item === null) {
return null;
}
item.width = Math.ceil((eachSpacing - 2 * config.columePadding) / 2);
if (opts.extra.column && opts.extra.column.width && +opts.extra.column.width > 0) {
item.width = Math.min(item.width, +opts.extra.column.width);
}
return item;
});
}
function getXAxisPoints(categories, opts, config) {
var yAxisTotalWidth = config.yAxisWidth + config.yAxisTitleWidth;
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') && dataCount>1 && opts.xAxis.boundaryGap=='justify'){
dataCount -=1;
}
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 + index * eachSpacing);
});
if(opts.xAxis.boundaryGap !=='justify'){
if (opts.enableScroll === true) {
xAxisPoints.push(startX + 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'){
boundaryGap=opts.xAxis.boundaryGap;
}
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];
if(boundaryGap=='center'){
point.x += Math.round(eachSpacing / 2);
}
var value = item;
if (typeof item === 'object' && item !== null) {
value = item.value
}
var height = validHeight * (value - minRange) / (maxRange - minRange);
height *= process;
point.y = opts.height - Math.round(height) - opts.area[2];
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;
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 getYAxisTextList(series, opts, config, stack) {
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 (Array.isArray(item)) {
return item !== null;
} else {
return item.value !== null;
}
} else {
return item !== null;
}
});
data.map(function(item) {
if (typeof item === 'object') {
if (Array.isArray(item)) {
item.map(function(subitem) {
sorted.push(subitem);
})
} 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);
}
if (typeof opts.yAxis.min === 'number') {
minData = Math.min(opts.yAxis.min, minData);
}
if (typeof opts.yAxis.max === 'number') {
maxData = Math.max(opts.yAxis.max, maxData);
}
if (minData === maxData) {
var rangeSpan = maxData || 10;
maxData += rangeSpan;
}
var dataRange = getDataRange(minData, maxData);
var minRange = dataRange.minRange;
var maxRange = dataRange.maxRange;
var range = [];
var eachRange = (maxRange - minRange) / config.yAxisSplit;
for (var i = 0; i <= config.yAxisSplit; i++) {
range.push(minRange + eachRange * i);
}
return range.reverse();
}
function calYAxisData(series, opts, config) {
//堆叠图重算Y轴
var columnstyle = assign({}, {
type: ""
}, opts.extra.column);
var ranges = getYAxisTextList(series, opts, config, columnstyle.type);
var yAxisWidth = config.yAxisWidth;
var yAxisFontSize = opts.yAxis.fontSize || config.fontSize;
var rangesFormat = ranges.map(function(item) {
item = util.toFixed(item, 6);
item = opts.yAxis.format ? opts.yAxis.format(Number(item)) : item;
yAxisWidth = Math.max(yAxisWidth, measureText(item, yAxisFontSize) + 5);
return item;
});
if (opts.yAxis.disabled === true) {
yAxisWidth = 0;
}
return {
rangesFormat: rangesFormat,
ranges: ranges,
yAxisWidth: yAxisWidth
};
}
function calTooltipYAxisData(point, series, opts, config, eachSpacing) {
var ranges = getYAxisTextList(series, opts, config);
var spacingValid = opts.height - opts.area[0] - opts.area[2];
let maxVal = ranges[0];
let minVal = ranges[ranges.length - 1];
let minAxis = opts.padding[3];
let maxAxis = opts.padding[1] + spacingValid;
let item = maxVal - (maxVal - minVal) * (point - minAxis) / (maxAxis - minAxis);
item = opts.yAxis.format ? opts.yAxis.format(Number(item)) : item;
return item;
}
function calMarkLineData(minRange, maxRange, points, opts) {
let spacingValid = opts.height - opts.area[0] - opts.area[2];
for (let i = 0; i < points.length; i++) {
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();
context.setStrokeStyle("#ffffff");
context.setLineWidth(1 * opts.pixelRatio);
context.setFillStyle(color);
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 + 3.5 * opts.pixelRatio, item.y);
context.arc(item.x, item.y, 4 * opts.pixelRatio, 0, 2 * Math.PI, false);
}
});
} else if (shape === 'rect') {
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);
}
});
}
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 || config.titleColor;
var subtitleFontColor = opts.subtitle.color || config.subtitleColor;
var titleHeight = title ? titlefontSize : 0;
var subtitleHeight = subtitle ? subtitlefontSize : 0;
var margin = 5;
if (subtitle) {
var textWidth = measureText(subtitle, subtitlefontSize);
var startX = center.x - textWidth / 2 + (opts.subtitle.offsetX || 0);
var startY = center.y + subtitlefontSize / 2 + (opts.subtitle.offsetY || 0);
if (title) {
startY += (titleHeight + margin) / 2;
}
context.beginPath();
context.setFontSize(subtitlefontSize);
context.setFillStyle(subtitleFontColor);
context.fillText(subtitle, startX, startY);
context.closePath();
context.stroke();
}
if (title) {
var _textWidth = measureText(title, titlefontSize);
var _startX = center.x - _textWidth / 2 + (opts.title.offsetX || 0);
var _startY = center.y + titlefontSize / 2 + (opts.title.offsetY || 0);
if (subtitle) {
_startY -= (subtitleHeight + margin) / 2;
}
context.beginPath();
context.setFontSize(titlefontSize);
context.setFillStyle(titleFontColor);
context.fillText(title, _startX, _startY);
context.closePath();
context.stroke();
}
}
function drawPointText(points, series, config, context) {
// 绘制数据文案
var data = series.data;
points.forEach(function(item, index) {
if (item !== null) {
//var formatVal = series.format ? series.format(data[index]) : data[index];
context.beginPath();
context.setFontSize(series.textSize || config.fontSize);
context.setFillStyle(series.textColor || '#666666');
var value = data[index]
if (typeof data[index] === 'object' && data[index] !== null) {
value = data[index].value
}
var formatVal = series.format ? series.format(value) : value;
context.fillText(String(formatVal), item.x - measureText(formatVal, series.textSize || config.fontSize) / 2, item.y -
2);
context.closePath();
context.stroke();
}
});
}
function drawGaugeLabel(gaugeOption, radius, centerPosition, opts, config, context) {
radius -= gaugeOption.width / 2 + config.gaugeLabelTextMargin;
let totalAngle = gaugeOption.startAngle - gaugeOption.endAngle + 1;
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.labelFormat ? gaugeOption.labelFormat(nowNumber) : nowNumber;
pos.x += centerPosition.x - measureText(labelText) / 2;
pos.y += centerPosition.y;
var startX = pos.x;
var startY = pos.y;
context.beginPath();
context.setFontSize(config.fontSize);
context.setFillStyle(gaugeOption.labelColor || '#666666');
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 || {};
radius += config.radarLabelTextMargin;
angleList.forEach(function(angle, index) {
var pos = {
x: radius * Math.cos(angle),
y: radius * 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] || '') / 2;
} else if (pos.x < 0) {
startX -= measureText(opts.categories[index] || '');
}
context.beginPath();
context.setFontSize(config.fontSize);
context.setFillStyle(radarOption.labelColor || '#666666');
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) {
var text = item.format ? item.format(+item._proportion_.toFixed(2)) : util.toFixed(item._proportion_.toFixed(4) * 100) +'%';
if(item._rose_proportion_) item._proportion_=item._rose_proportion_;
var arc = 2 * Math.PI - (item._start_ + 2 * Math.PI * item._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,
};
});
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);
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++) {
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.pixelRatio);
context.setFontSize(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, 0, 2 * Math.PI);
context.closePath();
context.fill();
context.beginPath();
context.setFontSize(item.textSize || config.fontSize);
context.setFillStyle(item.textColor || '#666666');
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.pixelRatio);
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);
let textX = offsetX - 0.5 * textWidth;
let textY = endY;
context.beginPath();
context.setFillStyle(hexToRgb(toolTipOption.labelBgColor || config.toolTipBackground, toolTipOption.labelBgOpacity || config.toolTipOpacity));
context.setStrokeStyle(toolTipOption.labelBgColor || config.toolTipBackground);
context.setLineWidth(1 * opts.pixelRatio);
context.rect(textX - config.toolTipPadding, textY, textWidth + 2 * config.toolTipPadding, config.fontSize + 2 * config.toolTipPadding);
context.closePath();
context.stroke();
context.fill();
context.beginPath();
context.setFontSize(config.fontSize);
context.setFillStyle(toolTipOption.labelFontColor || config.fontColor);
context.fillText(String(labelText), textX, textY + config.toolTipPadding + config.fontSize);
context.closePath();
context.stroke();
}
}
function drawMarkLine(minRange, maxRange, opts, config, context) {
let markLineOption = assign({}, {
type: 'solid',
dashLength: 4,
data: []
}, opts.extra.markLine);
let startX = opts.area[3];
let endX = opts.width - opts.padding[1];
let points = calMarkLineData(minRange, maxRange, markLineOption.data, opts);
for (let i = 0; i < points.length; i++) {
let item = assign({}, {
lineColor: '#DE4A42',
showLabel: false,
labelFontColor: '#666666',
labelBgColor: '#DFE8FF',
labelBgOpacity: 0.8,
yAxisIndex: 0
}, points[i]);
if (markLineOption.type == 'dash') {
context.setLineDash([markLineOption.dashLength, markLineOption.dashLength]);
}
context.setStrokeStyle(item.lineColor);
context.setLineWidth(1 * opts.pixelRatio);
context.beginPath();
context.moveTo(startX, item.y);
context.lineTo(endX, item.y);
context.stroke();
context.setLineDash([]);
if (item.showLabel) {
let labelText = opts.yAxis.format ? opts.yAxis.format(Number(item.value)) : item.value;
context.setFontSize(config.fontSize);
let textWidth = measureText(labelText, config.fontSize);
let bgStartX = opts.padding[3] + config.yAxisTitleWidth - config.toolTipPadding;
let bgEndX = Math.max(opts.area[3], textWidth + config.toolTipPadding * 2);
let bgWidth = bgEndX - bgStartX;
let textX = bgStartX + (bgWidth - textWidth) / 2;
let textY = item.y;
context.setFillStyle(hexToRgb(item.labelBgColor, item.labelBgOpacity));
context.setStrokeStyle(item.labelBgColor);
context.setLineWidth(1 * opts.pixelRatio);
context.beginPath();
context.rect(bgStartX, textY - 0.5 * config.fontSize - config.toolTipPadding, bgWidth, config.fontSize + 2 * config.toolTipPadding);
context.closePath();
context.stroke();
context.fill();
context.beginPath();
context.setFontSize(config.fontSize);
context.setFillStyle(item.labelFontColor);
context.fillText(String(labelText), textX, textY + 0.5 * config.fontSize);
context.stroke();
}
}
}
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.padding[1];
if (toolTipOption.gridType == 'dash') {
context.setLineDash([toolTipOption.dashLength, toolTipOption.dashLength]);
}
context.setStrokeStyle(toolTipOption.gridColor || '#cccccc');
context.setLineWidth(1 * opts.pixelRatio);
context.beginPath();
context.moveTo(startX, opts.tooltip.offset.y);
context.lineTo(endX, opts.tooltip.offset.y);
context.stroke();
context.setLineDash([]);
if (toolTipOption.yAxisLabel) {
let labelText = calTooltipYAxisData(opts.tooltip.offset.y, opts.series, opts, config, eachSpacing);
context.setFontSize(config.fontSize);
let textWidth = measureText(labelText, config.fontSize);
let bgStartX = opts.padding[3] + config.yAxisTitleWidth - config.toolTipPadding;
let bgEndX = Math.max(opts.area[3], textWidth + config.toolTipPadding * 2);
let 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.pixelRatio);
context.rect(bgStartX, textY - 0.5 * config.fontSize - config.toolTipPadding, bgWidth, config.fontSize + 2 * config.toolTipPadding);
context.closePath();
context.stroke();
context.fill();
context.beginPath();
context.setFontSize(config.fontSize);
context.setFillStyle(toolTipOption.labelFontColor || config.fontColor);
context.fillText(labelText, textX, textY + 0.5 * config.fontSize);
context.closePath();
context.stroke();
}
}
function drawToolTipSplitArea(offsetX, opts, config, context, eachSpacing) {
var toolTipOption = assign({}, {
activeBgColor: '#000000',
activeBgOpacity: 0.08
}, opts.extra.tooltip);
var startY = opts.area[0];
var endY = opts.height - opts.area[2];
context.beginPath();
context.setFillStyle(hexToRgb(toolTipOption.activeBgColor, toolTipOption.activeBgOpacity));
context.rect(offsetX - eachSpacing / 2, startY, eachSpacing, endY - startY);
context.closePath();
context.fill();
}
function drawToolTip(textList, offset, opts, config, context, eachSpacing, xAxisPoints) {
var toolTipOption = assign({}, {
bgColor: '#000000',
bgOpacity: 0.7,
fontColor: '#FFFFFF'
}, opts.extra.tooltip);
var legendWidth = 4 * opts.pixelRatio;
var legendMarginRight = 5 * opts.pixelRatio;
var arrowWidth = 8 * opts.pixelRatio;
var isOverRightBorder = false;
if (opts.type == 'line' || opts.type == 'area' || opts.type == 'candle' || opts.type == 'mix') {
drawToolTipSplitLine(opts.tooltip.offset.x, opts, config, context);
}
offset = assign({
x: 0,
y: 0
}, offset);
offset.y -= 8 * opts.pixelRatio;
var textWidth = textList.map(function(item) {
return measureText(item.text, config.fontSize);
});
var toolTipWidth = legendWidth + legendMarginRight + 4 * config.toolTipPadding + Math.max.apply(null, textWidth);
var toolTipHeight = 2 * config.toolTipPadding + textList.length * config.toolTipLineHeight;
// if beyond the right border
if (offset.x - Math.abs(opts._scrollDistance_) + 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 || config.toolTipBackground, toolTipOption.bgOpacity || config.toolTipOpacity));
if (isOverRightBorder) {
context.moveTo(offset.x, offset.y + 10 * opts.pixelRatio);
context.lineTo(offset.x - arrowWidth, offset.y + 10 * opts.pixelRatio - 5 * opts.pixelRatio);
context.lineTo(offset.x - arrowWidth, offset.y);
context.lineTo(offset.x - arrowWidth - Math.round(toolTipWidth), offset.y);
context.lineTo(offset.x - arrowWidth - Math.round(toolTipWidth), offset.y + toolTipHeight);
context.lineTo(offset.x - arrowWidth, offset.y + toolTipHeight);
context.lineTo(offset.x - arrowWidth, offset.y + 10 * opts.pixelRatio + 5 * opts.pixelRatio);
context.lineTo(offset.x, offset.y + 10 * opts.pixelRatio);
} else {
context.moveTo(offset.x, offset.y + 10 * opts.pixelRatio);
context.lineTo(offset.x + arrowWidth, offset.y + 10 * opts.pixelRatio - 5 * opts.pixelRatio);
context.lineTo(offset.x + arrowWidth, offset.y);
context.lineTo(offset.x + arrowWidth + Math.round(toolTipWidth), offset.y);
context.lineTo(offset.x + arrowWidth + Math.round(toolTipWidth), offset.y + toolTipHeight);
context.lineTo(offset.x + arrowWidth, offset.y + toolTipHeight);
context.lineTo(offset.x + arrowWidth, offset.y + 10 * opts.pixelRatio + 5 * opts.pixelRatio);
context.lineTo(offset.x, offset.y + 10 * opts.pixelRatio);
}
context.closePath();
context.fill();
// draw legend
textList.forEach(function(item, index) {
if (item.color !== null) {
context.beginPath();
context.setFillStyle(item.color);
var startX = offset.x + arrowWidth + 2 * config.toolTipPadding;
var startY = offset.y + (config.toolTipLineHeight - config.fontSize) / 2 + config.toolTipLineHeight * index +
config.toolTipPadding + 1;
if (isOverRightBorder) {
startX = offset.x - toolTipWidth - arrowWidth + 2 * config.toolTipPadding;
}
context.fillRect(startX, startY, legendWidth, config.fontSize);
context.closePath();
}
});
// draw text list
textList.forEach(function(item, index) {
var startX = offset.x + arrowWidth + 2 * config.toolTipPadding + legendWidth + legendMarginRight;
if (isOverRightBorder) {
startX = offset.x - toolTipWidth - arrowWidth + 2 * config.toolTipPadding + +legendWidth + legendMarginRight;
}
var startY = offset.y + (config.toolTipLineHeight - config.fontSize) / 2 + config.toolTipLineHeight * index +
config.toolTipPadding;
context.beginPath();
context.setFontSize(config.fontSize);
context.setFillStyle(toolTipOption.fontColor);
context.fillText(item.text, startX, startY + config.fontSize);
context.closePath();
context.stroke();
});
}
function drawYAxisTitle(title, opts, config, context) {
var startX = config.xAxisHeight + (opts.height - config.xAxisHeight - measureText(title)) / 2;
context.save();
context.beginPath();
context.setFontSize(config.fontSize);
context.setFillStyle(opts.yAxis.titleFontColor || '#333333');
context.translate(0, opts.height);
context.rotate(-90 * Math.PI / 180);
context.fillText(title, startX, opts.padding[3] + 0.5 * config.fontSize);
context.closePath();
context.stroke();
context.restore();
}
function drawColumnDataPoints(series, opts, config, context) {
let process = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 1;
let ranges = [].concat(opts.chartData.yAxisData.ranges);
let xAxisData = opts.chartData.xAxisData,
xAxisPoints = xAxisData.xAxisPoints,
eachSpacing = xAxisData.eachSpacing;
let columnOption = assign({}, {
type: 'group',
width: eachSpacing / 2,
meter: {
border: 4,
fillColor: '#FFFFFF'
}
}, opts.extra.column);
let minRange = ranges.pop();
let maxRange = ranges.shift();
let calPoints = [];
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) {
drawToolTipSplitArea(opts.tooltip.offset.x, opts, config, context, eachSpacing);
}
series.forEach(function(eachSeries, seriesIndex) {
var data = eachSeries.data;
switch (columnOption.type) {
case 'group':
var points = getDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config, 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);
points.forEach(function(item, index) {
if (item !== null) {
context.beginPath();
context.setStrokeStyle(item.color || eachSeries.color);
context.setLineWidth(1)
context.setFillStyle(item.color || eachSeries.color);
var startX = item.x - item.width / 2;
var height = opts.height - item.y - opts.area[2];
context.moveTo(startX-1, item.y);
context.lineTo(startX+item.width-2,item.y);
context.lineTo(startX+item.width-2,opts.height - opts.area[2]);
context.lineTo(startX,opts.height - opts.area[2]);
context.lineTo(startX,item.y);
//context.rect(startX, item.y, item.width, height);
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);
points.forEach(function(item, index) {
if (item !== null) {
context.beginPath();
context.setFillStyle(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.moveTo(startX, item.y);
context.fillRect(startX, item.y, item.width - 2, 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.meter
.border);
if (seriesIndex == 0) {
points.forEach(function(item, index) {
if (item !== null) {
//画背景颜色
context.beginPath();
context.setFillStyle(columnOption.meter.fillColor);
var startX = item.x - item.width / 2;
var height = opts.height - item.y - opts.area[2];
context.moveTo(startX, item.y);
context.fillRect(startX, item.y, item.width, height);
context.closePath();
context.fill();
//画边框线
if (columnOption.meter.border > 0) {
context.beginPath();
context.setStrokeStyle(eachSeries.color);
context.setLineWidth(columnOption.meter.border * opts.pixelRatio);
context.moveTo(startX + columnOption.meter.border * 0.5, item.y + height);
context.lineTo(startX + columnOption.meter.border * 0.5, item.y + columnOption.meter.border * 0.5);
context.lineTo(startX + item.width - columnOption.meter.border * 0.5, item.y + columnOption.meter.border * 0.5);
context.lineTo(startX + item.width - columnOption.meter.border * 0.5, item.y + height);
context.stroke();
}
}
});
} else {
points.forEach(function(item, index) {
if (item !== null) {
context.beginPath();
context.setFillStyle(item.color || eachSeries.color);
var startX = item.x - item.width / 2;
var height = opts.height - item.y - opts.area[2];
context.moveTo(startX, item.y);
context.fillRect(startX, item.y, item.width, height);
context.closePath();
context.fill();
}
});
}
break;
}
});
if (opts.dataLabel !== false && process === 1) {
series.forEach(function(eachSeries, seriesIndex) {
var data = eachSeries.data;
switch (columnOption.type) {
case 'group':
var points = getDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config, process);
points = fixColumeData(points, eachSpacing, series.length, seriesIndex, config, opts);
drawPointText(points, eachSeries, config, context);
break;
case 'stack':
var points = getStackDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config,
seriesIndex,
series, process);
drawPointText(points, eachSeries, config, context);
break;
case 'meter':
var points = getDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config, process);
drawPointText(points, eachSeries, config, context);
break;
}
});
}
context.restore();
return {
xAxisPoints: xAxisPoints,
calPoints: calPoints,
eachSpacing: eachSpacing,
minRange: minRange,
maxRange: maxRange
};
}
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.colors
}, candleOption.average);
opts.extra.candle = candleOption;
let ranges = [].concat(opts.chartData.yAxisData.ranges);
let xAxisData = opts.chartData.xAxisData,
xAxisPoints = xAxisData.xAxisPoints,
eachSpacing = xAxisData.eachSpacing;
let minRange = ranges.pop();
let maxRange = ranges.shift();
let calPoints = [];
context.save();
if (opts._scrollDistance_ && opts._scrollDistance_ !== 0 && opts.enableScroll === true) {
context.translate(opts._scrollDistance_, 0);
}
//画均线
if (candleOption.average.show) {
seriesMA.forEach(function(eachSeries, seriesIndex) {
var data = eachSeries.data;
var points = getDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config, process);
//calPoints.push(points);
var splitPointList = splitPoints(points);
splitPointList.forEach(function(points, index) {
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);
points.forEach(function(item, index) {
if (index > 0) {
var ctrlPoint = createCurveControlPoints(points, index - 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) {
var data = eachSeries.data;
var points = getCandleDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config, process);
calPoints.push(points);
var splitPointList = splitPoints(points);
splitPointList = splitPointList[0];
splitPointList.forEach(function(points, index) {
context.beginPath();
//如果上涨
if (data[index][1] - data[index][0] > 0) {
context.setStrokeStyle(candleOption.color.upLine);
context.setFillStyle(candleOption.color.upFill);
context.setLineWidth(1 * opts.pixelRatio);
context.moveTo(points[3].x, points[3].y); //顶点
context.lineTo(points[1].x, points[1].y); //收盘中间点
context.lineTo(points[1].x - eachSpacing / 4, points[1].y); //收盘左侧点
context.lineTo(points[0].x - eachSpacing / 4, points[0].y); //开盘左侧点
context.lineTo(points[0].x, points[0].y); //开盘中间点
context.lineTo(points[2].x, points[2].y); //底点
context.lineTo(points[0].x, points[0].y); //开盘中间点
context.lineTo(points[0].x + eachSpacing / 4, points[0].y); //开盘右侧点
context.lineTo(points[1].x + eachSpacing / 4, points[1].y); //收盘右侧点
context.lineTo(points[1].x, points[1].y); //收盘中间点
context.moveTo(points[3].x, points[3].y); //顶点
} else {
context.setStrokeStyle(candleOption.color.downLine);
context.setFillStyle(candleOption.color.downFill);
context.setLineWidth(1 * opts.pixelRatio);
context.moveTo(points[3].x, points[3].y); //顶点
context.lineTo(points[0].x, points[0].y); //开盘中间点
context.lineTo(points[0].x - eachSpacing / 4, points[0].y); //开盘左侧点
context.lineTo(points[1].x - eachSpacing / 4, points[1].y); //收盘左侧点
context.lineTo(points[1].x, points[1].y); //收盘中间点
context.lineTo(points[2].x, points[2].y); //底点
context.lineTo(points[1].x, points[1].y); //收盘中间点
context.lineTo(points[1].x + eachSpacing / 4, points[1].y); //收盘右侧点
context.lineTo(points[0].x + eachSpacing / 4, points[0].y); //开盘右侧点
context.lineTo(points[0].x, points[0].y); //开盘中间点
context.moveTo(points[3].x, points[3].y); //顶点
}
context.closePath();
context.fill();
context.stroke();
});
});
context.restore();
return {
xAxisPoints: xAxisPoints,
calPoints: calPoints,
eachSpacing: eachSpacing,
minRange: minRange,
maxRange: maxRange
};
}
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
},opts.extra.area);
let ranges = [].concat(opts.chartData.yAxisData.ranges);
let xAxisData = opts.chartData.xAxisData,
xAxisPoints = xAxisData.xAxisPoints,
eachSpacing = xAxisData.eachSpacing;
let minRange = ranges.pop();
let maxRange = ranges.shift();
let endY = opts.height - opts.area[2];
let calPoints = [];
context.save();
if (opts._scrollDistance_ && opts._scrollDistance_ !== 0 && opts.enableScroll === true) {
context.translate(opts._scrollDistance_, 0);
}
series.forEach(function(eachSeries, seriesIndex) {
let data = eachSeries.data;
let points = getDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config, process);
calPoints.push(points);
let splitPointList = splitPoints(points);
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));
context.setFillStyle(hexToRgb(eachSeries.color, areaOption.opacity));
context.setLineWidth(areaOption.width * opts.pixelRatio);
if (points.length > 1) {
let firstPoint = points[0];
let lastPoint = points[points.length - 1];
context.moveTo(firstPoint.x, firstPoint.y);
if (areaOption.type === 'curve') {
points.forEach(function(item, index) {
if (index > 0) {
let ctrlPoint = createCurveControlPoints(points, index - 1);
context.bezierCurveTo(ctrlPoint.ctrA.x, ctrlPoint.ctrA.y, ctrlPoint.ctrB.x, ctrlPoint.ctrB.y,item.x, item.y);
}
});
} else {
points.forEach(function(item, index) {
if (index > 0) {
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) {
context.beginPath();
context.setStrokeStyle(eachSeries.color);
context.setLineWidth(areaOption.width * opts.pixelRatio);
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);
if (areaOption.type === 'curve') {
points.forEach(function(item, index) {
if (index > 0) {
let ctrlPoint = createCurveControlPoints(points, index - 1);
context.bezierCurveTo(ctrlPoint.ctrA.x, ctrlPoint.ctrA.y, ctrlPoint.ctrB.x, ctrlPoint.ctrB.y,item.x,item.y);
}
});
} else {
points.forEach(function(item, index) {
if (index > 0) {
context.lineTo(item.x, item.y);
}
});
}
context.moveTo(points[0].x, points[0].y);
}
context.closePath();
context.stroke();
}
}
//画点
if (opts.dataPointShape !== false) {
var shape = config.dataPointShape[seriesIndex % config.dataPointShape.length];
drawPointShape(points, eachSeries.color, shape, context, opts);
}
});
if (opts.dataLabel !== false && process === 1) {
series.forEach(function(eachSeries, seriesIndex) {
var data = eachSeries.data;
var points = getDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config, process);
drawPointText(points, eachSeries, config, context);
});
}
context.restore();
return {
xAxisPoints: xAxisPoints,
calPoints: calPoints,
eachSpacing: eachSpacing,
minRange: minRange,
maxRange: maxRange
};
}
function drawLineDataPoints(series, opts, config, context) {
var process = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 1;
var lineOption = opts.extra.line || {
type: 'straight',
width: 2
};
lineOption.type = lineOption.type ? lineOption.type : 'straight';
lineOption.width = lineOption.width ? lineOption.width : 2;
let ranges = [].concat(opts.chartData.yAxisData.ranges);
let xAxisData = opts.chartData.xAxisData,
xAxisPoints = xAxisData.xAxisPoints,
eachSpacing = xAxisData.eachSpacing;
var minRange = ranges.pop();
var maxRange = ranges.shift();
var calPoints = [];
context.save();
if (opts._scrollDistance_ && opts._scrollDistance_ !== 0 && opts.enableScroll === true) {
context.translate(opts._scrollDistance_, 0);
}
series.forEach(function(eachSeries, seriesIndex) {
var data = eachSeries.data;
var points = getDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config, process);
calPoints.push(points);
var splitPointList = splitPoints(points);
splitPointList.forEach(function(points, index) {
context.beginPath();
context.setStrokeStyle(eachSeries.color);
context.setLineWidth(lineOption.width * opts.pixelRatio);
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);
if (lineOption.type === 'curve') {
points.forEach(function(item, index) {
if (index > 0) {
var ctrlPoint = createCurveControlPoints(points, index - 1);
context.bezierCurveTo(ctrlPoint.ctrA.x, ctrlPoint.ctrA.y, ctrlPoint.ctrB.x, ctrlPoint.ctrB.y,
item.x, item
.y);
}
});
} else {
points.forEach(function(item, index) {
if (index > 0) {
context.lineTo(item.x, item.y);
}
});
}
context.moveTo(points[0].x, points[0].y);
}
context.closePath();
context.stroke();
});
if (opts.dataPointShape !== false) {
var shape = config.dataPointShape[seriesIndex % config.dataPointShape.length];
drawPointShape(points, eachSeries.color, shape, context, opts);
}
});
if (opts.dataLabel !== false && process === 1) {
series.forEach(function(eachSeries, seriesIndex) {
var data = eachSeries.data;
var points = getDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config, process);
drawPointText(points, eachSeries, config, context);
});
}
context.restore();
return {
xAxisPoints: xAxisPoints,
calPoints: calPoints,
eachSpacing: eachSpacing,
minRange: minRange,
maxRange: maxRange
};
}
function drawMixDataPoints(series, opts, config, context) {
let process = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 1;
let ranges = [].concat(opts.chartData.yAxisData.ranges);
let xAxisData = opts.chartData.xAxisData,
xAxisPoints = xAxisData.xAxisPoints,
eachSpacing = xAxisData.eachSpacing;
let minRange = ranges.pop();
let maxRange = ranges.shift();
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();
if (opts._scrollDistance_ && opts._scrollDistance_ !== 0 && opts.enableScroll === true) {
context.translate(opts._scrollDistance_, 0);
}
series.forEach(function(eachSeries, seriesIndex) {
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);
points.forEach(function(item, index) {
if (item !== null) {
context.beginPath();
context.setStrokeStyle(item.color || eachSeries.color);
context.setLineWidth(1)
context.setFillStyle(item.color || eachSeries.color);
var startX = item.x - item.width / 2;
var height = opts.height - item.y - opts.area[2];
context.moveTo(startX, item.y);
context.moveTo(startX-1, item.y);
context.lineTo(startX+item.width-2,item.y);
context.lineTo(startX+item.width-2,opts.height - opts.area[2]);
context.lineTo(startX,opts.height - opts.area[2]);
context.lineTo(startX,item.y);
//context.rect(startX, item.y, item.width, height);
context.closePath();
context.stroke();
context.fill();
context.closePath();
context.fill();
}
});
columnIndex += 1;
}
//绘制区域图数据
if (eachSeries.type == 'area') {
let splitPointList = splitPoints(points);
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.setFillStyle(hexToRgb(eachSeries.color, 0.2));
context.setLineWidth(2 * opts.pixelRatio);
if (points.length > 1) {
var firstPoint = points[0];
let lastPoint = points[points.length - 1];
context.moveTo(firstPoint.x, firstPoint.y);
if (eachSeries.style === 'curve') {
points.forEach(function(item, index) {
if (index > 0) {
var ctrlPoint = createCurveControlPoints(points, index - 1);
context.bezierCurveTo(ctrlPoint.ctrA.x, ctrlPoint.ctrA.y, ctrlPoint.ctrB.x, ctrlPoint.ctrB.y, item.x, item.y);
}
});
} else {
points.forEach(function(item, index) {
if (index > 0) {
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);
splitPointList.forEach(function(points, index) {
context.beginPath();
context.setStrokeStyle(eachSeries.color);
context.setLineWidth(2 * opts.pixelRatio);
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);
if (eachSeries.style == 'curve') {
points.forEach(function(item, index) {
if (index > 0) {
var ctrlPoint = createCurveControlPoints(points, index - 1);
context.bezierCurveTo(ctrlPoint.ctrA.x, ctrlPoint.ctrA.y, ctrlPoint.ctrB.x, ctrlPoint.ctrB.y,
item.x,
item.y);
}
});
} else {
points.forEach(function(item, index) {
if (index > 0) {
context.lineTo(item.x, item.y);
}
});
}
context.moveTo(points[0].x, points[0].y);
}
context.closePath();
context.stroke();
});
}
// 绘制点数据图
if (eachSeries.type == 'point') {
points.forEach(function(pointsa, index) {
if (pointsa) {
context.beginPath();
context.setFillStyle(eachSeries.color);
context.setStrokeStyle('#FFFFFF');
context.setLineWidth(1 * opts.pixelRatio);
context.moveTo(pointsa.x + 3.5 * opts.pixelRatio, pointsa.y);
context.arc(pointsa.x, pointsa.y, 4 * opts.pixelRatio, 0, 2 * Math.PI);
context.closePath();
context.fill();
context.stroke();
}
});
}
if (eachSeries.addPoint == true && eachSeries.type !== 'column') {
var shape = config.dataPointShape[seriesIndex % config.dataPointShape.length];
drawPointShape(points, eachSeries.color, shape, context, opts);
}
});
if (opts.dataLabel !== false && process === 1) {
var columnIndex = 0;
series.forEach(function(eachSeries, seriesIndex) {
var data = eachSeries.data;
var points = getDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config, process);
if (eachSeries.type !== 'column') {
drawPointText(points, eachSeries, config, context);
} else {
points = fixColumeData(points, eachSpacing, columnLength, columnIndex, config, opts);
drawPointText(points, eachSeries, config, context);
columnIndex += 1;
}
});
}
context.restore();
return {
xAxisPoints: xAxisPoints,
calPoints: calPoints,
eachSpacing: eachSpacing,
minRange: minRange,
maxRange: maxRange
};
}
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 == '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 == 'line'||opts.type == 'area'){
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);
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.pixelRatio);
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.pixelRatio);
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);
}
if (opts.xAxis.disableGrid !== true) {
context.setStrokeStyle(opts.xAxis.gridColor || "#cccccc");
context.setLineCap('butt');
context.setLineWidth(1 * opts.pixelRatio);
if (opts.xAxis.gridType == 'dash') {
context.setLineDash([opts.xAxis.dashLength, opts.xAxis.dashLength]);
}
if (opts.xAxis.type === 'calibration') {
xAxisPoints.forEach(function(item, index) {
if (index > 0) {
context.beginPath();
context.moveTo(item - eachSpacing / 2, startY);
context.lineTo(item - eachSpacing / 2, startY + 4 * opts.pixelRatio);
context.closePath();
context.stroke();
}
});
} else {
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([]);
}
//不绘制X轴
if (opts.xAxis.disabled !== true) {
// 对X轴列表做抽稀处理
let validWidth = opts.width - opts.padding[1] - opts.padding[3] - config.yAxisWidth - config.yAxisTitleWidth;
//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 || config.fontSize;
if (config._xAxisTextAngle_ === 0) {
newCategories.forEach(function(item, index) {
var offset = - measureText(item, xAxisFontSize) / 2;
if(boundaryGap == 'center'){
offset+=eachSpacing / 2;
}
context.beginPath();
context.setFontSize(xAxisFontSize);
context.setFillStyle(opts.xAxis.fontColor || '#666666');
context.fillText(item, xAxisPoints[index] + offset, startY + xAxisFontSize + (config.xAxisHeight - xAxisFontSize) / 2);
context.closePath();
context.stroke();
});
} else {
newCategories.forEach(function(item, index) {
context.save();
context.beginPath();
context.setFontSize(xAxisFontSize);
context.setFillStyle(opts.xAxis.fontColor || '#666666');
var textWidth = measureText(item);
var offset = - textWidth;
if(boundaryGap == 'center'){
offset+=eachSpacing / 2;
}
var _calRotateTranslate = calRotateTranslate(xAxisPoints[index] + eachSpacing / 2, startY + xAxisFontSize / 2 + 5, opts.height),
transX = _calRotateTranslate.transX,
transY = _calRotateTranslate.transY;
context.rotate(-1 * config._xAxisTextAngle_);
context.translate(transX, transY);
context.fillText(item, xAxisPoints[index] + offset, startY + xAxisFontSize + 5);
context.closePath();
context.stroke();
context.restore();
});
}
}
context.restore();
}
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 / config.yAxisSplit;
let startX = opts.area[3];
let xAxisPoints = opts.chartData.xAxisData.xAxisPoints,
xAxiseachSpacing = opts.chartData.xAxisData.eachSpacing;
let TotalWidth = xAxiseachSpacing * (xAxisPoints.length - 1);
let endX = startX + TotalWidth;
let points = [];
for (let i = 0; i < config.yAxisSplit + 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.yAxis.dashLength]);
}
context.setStrokeStyle(opts.yAxis.gridColor || "#cccccc");
context.setLineWidth(1 * opts.pixelRatio);
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;
}
let rangesFormat = opts.chartData.yAxisData.rangesFormat;
var spacingValid = opts.height - opts.area[0] - opts.area[2];
var eachSpacing = Math.floor(spacingValid / config.yAxisSplit);
var startX = opts.area[3];
var endX = opts.width - opts.area[1];
var endY = opts.height - opts.area[2];
var fillEndY = endY + config.xAxisHeight;
if (opts.xAxis.scrollShow) {
fillEndY -= 3 * opts.pixelRatio;
}
// set YAxis background
context.beginPath();
context.setFillStyle(opts.background || '#ffffff');
if (opts._scrollDistance_ < 0) {
context.fillRect(0, 0, startX, fillEndY);
}
if(opts.enableScroll == true){
context.fillRect(endX, 0, opts.width, fillEndY);
}
context.closePath();
context.stroke();
var points = [];
for (var i = 0; i <= config.yAxisSplit; i++) {
points.push(opts.area[0] + eachSpacing * i);
}
var yAxisFontSize = opts.yAxis.fontSize || config.fontSize;
rangesFormat.forEach(function(item, index) {
var pos = points[index] ? points[index] : endY;
context.beginPath();
context.setFontSize(yAxisFontSize);
context.setFillStyle(opts.yAxis.fontColor || '#666666');
context.fillText(String(item), opts.area[3] - config.yAxisWidth, pos + yAxisFontSize / 2);
context.closePath();
context.stroke();
});
if (opts.yAxis.title) {
drawYAxisTitle(opts.yAxis.title, opts, config, context);
}
}
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;
let fontSize = opts.legend.fontSize;
let shapeWidth = 15 * opts.pixelRatio;
let shapeRight = 5 * opts.pixelRatio;
let itemGap = opts.legend.itemGap;
let lineHeight = Math.max(opts.legend.lineHeight * opts.pixelRatio, fontSize);
//画背景及边框
context.beginPath();
context.setLineWidth(opts.legend.borderWidth);
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') {
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.pixelRatio);
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.pixelRatio);
context.fillRect(startX, startY + 0.5 * lineHeight - 2 * opts.pixelRatio, 15 * opts.pixelRatio, 4 * opts.pixelRatio);
break;
case 'triangle':
context.moveTo(startX + 7.5 * opts.pixelRatio, startY + 0.5 * lineHeight - 5 * opts.pixelRatio);
context.lineTo(startX + 2.5 * opts.pixelRatio, startY + 0.5 * lineHeight + 5 * opts.pixelRatio);
context.lineTo(startX + 12.5 * opts.pixelRatio, startY + 0.5 * lineHeight + 5 * opts.pixelRatio);
context.lineTo(startX + 7.5 * opts.pixelRatio, startY + 0.5 * lineHeight - 5 * opts.pixelRatio);
break;
case 'diamond':
context.moveTo(startX + 7.5 * opts.pixelRatio, startY + 0.5 * lineHeight - 5 * opts.pixelRatio);
context.lineTo(startX + 2.5 * opts.pixelRatio, startY + 0.5 * lineHeight);
context.lineTo(startX + 7.5 * opts.pixelRatio, startY + 0.5 * lineHeight + 5 * opts.pixelRatio);
context.lineTo(startX + 12.5 * opts.pixelRatio, startY + 0.5 * lineHeight);
context.lineTo(startX + 7.5 * opts.pixelRatio, startY + 0.5 * lineHeight - 5 * opts.pixelRatio);
break;
case 'circle':
context.moveTo(startX + 7.5 * opts.pixelRatio, startY + 0.5 * lineHeight);
context.arc(startX + 7.5 * opts.pixelRatio, startY + 0.5 * lineHeight, 5 * opts.pixelRatio, 0, 2 * Math.PI);
break;
case 'rect':
context.moveTo(startX, startY + 0.5 * lineHeight - 5 * opts.pixelRatio);
context.fillRect(startX, startY + 0.5 * lineHeight - 5 * opts.pixelRatio, 15 * opts.pixelRatio, 10 * opts.pixelRatio);
break;
default:
context.moveTo(startX, startY + 0.5 * lineHeight - 5 * opts.pixelRatio);
context.fillRect(startX, startY + 0.5 * lineHeight - 5 * opts.pixelRatio, 15 * opts.pixelRatio, 10 * opts.pixelRatio);
}
context.closePath();
context.fill();
context.stroke();
startX += shapeWidth + shapeRight;
let fontTrans = 0.5 * lineHeight + 0.5 * fontSize - 2;
context.beginPath();
context.setFontSize(fontSize);
context.setFillStyle(item.show ? opts.legend.fontColor : opts.legend.hiddenColor);
context.fillText(item.name, startX, startY + fontTrans);
context.closePath();
context.stroke();
if (opts.legend.position == 'top' || opts.legend.position == 'bottom') {
startX += measureText(item.name, fontSize) + itemGap;
item.area[2] = startX;
} else {
item.area[2] = startX + measureText(item.name, fontSize) + 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 * opts.pixelRatio,
offsetAngle: 0,
labelWidth: 15 * opts.pixelRatio,
ringWidth: 0,
border:false,
borderWidth:2,
borderColor:'#FFFFFF'
}, opts.extra.pie);
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;
}
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);
series = getPieDataPoints(series, radius, process);
var activeRadius = pieOption.activeRadius;
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, opts.extra.pie.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.pixelRatio);
context.lineJoin = "round";
context.setStrokeStyle(pieOption.borderColor);
context.setFillStyle(eachSeries.color);
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 opts.extra.pie.ringWidth === 'number' && opts.extra.pie.ringWidth > 0) {
innerPieWidth = Math.max(0, radius - opts.extra.pie.ringWidth);
}
context.beginPath();
context.setFillStyle(opts.background || '#ffffff');
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) {
var valid = false;
for (var i = 0, len = series.length; i < len; i++) {
if (series[i].data > 0) {
valid = true;
break;
}
}
if (valid) {
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 * opts.pixelRatio,
offsetAngle: 0,
labelWidth: 15 * opts.pixelRatio,
border:false,
borderWidth:2,
borderColor:'#FFFFFF'
}, opts.extra.rose);
if (config.pieChartLinePadding == 0) {
config.pieChartLinePadding = roseOption.activeRadius;
}
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);
var minRadius = roseOption.minRadius || radius * 0.5;
series = getRoseDataPoints(series, roseOption.type, minRadius, radius, process);
var activeRadius = roseOption.activeRadius;
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.pixelRatio);
context.lineJoin = "round";
context.setStrokeStyle(roseOption.borderColor);
context.setFillStyle(eachSeries.color);
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) {
var valid = false;
for (var i = 0, len = series.length; i < len; i++) {
if (series[i].data > 0) {
valid = true;
break;
}
}
if (valid) {
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',
width: 12 * opts.pixelRatio
}, opts.extra.arcbar);
series = getArcbarDataPoints(series, arcbarOption, process);
var centerPosition = {
x: opts.width / 2,
y: opts.height / 2
};
var radius = Math.min(centerPosition.x, centerPosition.y);
radius -= 5 * opts.pixelRatio;
radius -= arcbarOption.width / 2;
//背景颜色
context.setLineWidth(arcbarOption.width);
context.setStrokeStyle(arcbarOption.backgroundColor || '#E9E9E9');
context.setLineCap('round');
context.beginPath();
if (arcbarOption.type == 'default') {
context.arc(centerPosition.x, centerPosition.y, radius, arcbarOption.startAngle * Math.PI, arcbarOption.endAngle *
Math.PI, false);
} else {
context.arc(centerPosition.x, centerPosition.y, radius, 0, 2 * Math.PI, false);
}
context.stroke();
for (let i = 0; i < series.length; i++) {
let eachSeries = series[i];
context.setLineWidth(arcbarOption.width);
context.setStrokeStyle(eachSeries.color);
context.setLineCap('round');
context.beginPath();
context.arc(centerPosition.x, centerPosition.y, radius, arcbarOption.startAngle * Math.PI, eachSeries._proportion_ *
Math.PI, false);
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({}, {
startAngle: 0.75,
endAngle: 0.25,
width: 15,
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.pixelRatio;
radius -= gaugeOption.width / 2;
var innerRadius = radius - gaugeOption.width;
//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
let totalAngle = gaugeOption.startAngle - gaugeOption.endAngle + 1;
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.pixelRatio);
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.pixelRatio);
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);
}
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',
labelColor: '#666666',
opacity: 0.2
},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 radius = Math.min(centerPosition.x - (getMaxTextListLength(opts.categories) + config.radarLabelTextMargin),
centerPosition.y - config.radarLabelTextMargin);
//TODO逻辑不对
radius -= opts.padding[1];
// draw grid
context.beginPath();
context.setLineWidth(1 * opts.pixelRatio);
context.setStrokeStyle(radarOption.gridColor);
coordinateAngle.forEach(function(angle) {
var pos = convertCoordinateOrigin(radius * Math.cos(angle), radius * Math.sin(angle), centerPosition);
context.moveTo(centerPosition.x, centerPosition.y);
context.lineTo(pos.x, pos.y);
});
context.stroke();
context.closePath();
// draw split line grid
var _loop = function _loop(i) {
var startPos = {};
context.beginPath();
context.setLineWidth(1 * opts.pixelRatio);
context.setStrokeStyle(radarOption.gridColor);
coordinateAngle.forEach(function(angle, index) {
var pos = convertCoordinateOrigin(radius / config.radarGridCount * i * Math.cos(angle), radius / config.radarGridCount *
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);
context.stroke();
context.closePath();
};
for (var i = 1; i <= config.radarGridCount; i++) {
_loop(i);
}
var radarDataPoints = getRadarDataPoints(coordinateAngle, centerPosition, radius, series, opts, process);
radarDataPoints.forEach(function(eachSeries, seriesIndex) {
// 绘制区域数据
context.beginPath();
context.setFillStyle(hexToRgb(eachSeries.color, radarOption.opacity));
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 (opts.dataPointShape !== false) {
var shape = config.dataPointShape[seriesIndex % config.dataPointShape.length];
var points = eachSeries.data.map(function(item) {
return item.position;
});
drawPointShape(points, eachSeries.color, shape, context, opts);
}
});
// draw label text
drawRadarLabel(coordinateAngle, radius, centerPosition, opts, config, context);
return {
center: centerPosition,
radius: radius,
angleList: coordinateAngle
};
}
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 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){
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 (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,
borderWidth:1,
borderColor:'#666666',
fillOpacity:0.6,
activeBorderColor:'#f04864',
activeFillColor:'#facc14',
activeFillOpacity:1
},opts.extra.map);
var coords, point;
var data = series;
var bounds= getBoundingBox(data);
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;
context.beginPath();
context.clearRect(0, 0, opts.width, opts.height);
context.setFillStyle(opts.background||'#FFFFFF');
context.rect(0,0,opts.width,opts.height);
context.fill();
for (var i = 0; i < data.length; i++) {
context.beginPath();
context.setLineWidth(mapOption.borderWidth * opts.pixelRatio);
context.setStrokeStyle(mapOption.borderColor);
context.setFillStyle(hexToRgb(series[i].color, mapOption.fillOpacity));
if (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++) {
point = coordinateToPoint(coords[j][1], coords[j][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){
var centerPoint = data[i].properties.centroid;
if(centerPoint){
point = coordinateToPoint(centerPoint[1], centerPoint[0],bounds,scale,xoffset,yoffset);
let fontSize=data[i].textSize||config.fontSize;
let text=data[i].properties.name;
context.beginPath();
context.setFontSize(fontSize)
context.setFillStyle(data[i].textColor||'#666666')
context.fillText(text, point.x-measureText(text,fontSize)/2, point.y+fontSize/2);
context.closePath();
context.stroke();
}
}
}
opts.chartData.mapData={
bounds:bounds,
scale:scale,
xoffset:xoffset,
yoffset:yoffset
}
drawToolTipBridge(opts, config, context,1);
context.draw();
}
function getWordCloudPoint(opts,type){
let points = opts.series.sort(function(a,b){return parseInt(b.textSize)-parseInt(a.textSize);});
switch (type) {
case 'normal':
for (let i = 0; i < points.length; i++) {
let text = points[i].name;
let tHeight = points[i].textSize;
let tWidth = measureText(text,tHeight);
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;
let tWidth = measureText(text,tHeight);
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);
context.beginPath();
context.setFillStyle(opts.background||'#FFFFFF');
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;
let tWidth = measureText(text,tHeight);
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({},{
activeWidth:10,
activeOpacity:0.3,
border:false,
borderWidth:2,
borderColor:'#FFFFFF',
fillOpacity:1,
labelAlign:'right'
},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;
let radius = Math.min((opts.width - opts.area[1] - opts.area[3]) / 2 - activeWidth, (opts.height - opts.area[0] - opts.area[2]) / 2 - activeWidth);
series = getFunnelDataPoints(series, radius, process);
context.save();
context.translate(centerPosition.x,centerPosition.y);
for(let i=0;i<series.length;i++){
if(i==0){
if (opts.tooltip) {
if (opts.tooltip.index == i) {
context.beginPath();
context.setFillStyle(hexToRgb(series[i].color, funnelOption.activeOpacity));
context.moveTo(-activeWidth, 0);
context.lineTo(-series[i].radius-activeWidth, -eachSpacing);
context.lineTo(series[i].radius+activeWidth, -eachSpacing);
context.lineTo(activeWidth, 0);
context.lineTo(-activeWidth, 0);
context.closePath();
context.fill();
}
}
series[i].funnelArea=[centerPosition.x-series[i].radius,centerPosition.y-eachSpacing,centerPosition.x+series[i].radius,centerPosition.y];
context.beginPath();
context.setLineWidth(funnelOption.borderWidth * opts.pixelRatio);
context.setStrokeStyle(funnelOption.borderColor);
context.setFillStyle(hexToRgb(series[i].color, funnelOption.fillOpacity));
context.moveTo(0, 0);
context.lineTo(-series[i].radius, -eachSpacing);
context.lineTo(series[i].radius, -eachSpacing);
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(series[i].color, funnelOption.activeOpacity));
context.moveTo(0, 0);
context.lineTo(-series[i-1].radius-activeWidth, 0);
context.lineTo(-series[i].radius-activeWidth, -eachSpacing);
context.lineTo(series[i].radius+activeWidth, -eachSpacing);
context.lineTo(series[i-1].radius+activeWidth, 0);
context.lineTo(0, 0);
context.closePath();
context.fill();
context.closePath();
context.fill();
}
}
series[i].funnelArea=[centerPosition.x-series[i].radius,centerPosition.y-eachSpacing*(i+1),centerPosition.x+series[i].radius,centerPosition.y-eachSpacing*i];
context.beginPath();
context.setLineWidth(funnelOption.borderWidth * opts.pixelRatio);
context.setStrokeStyle(funnelOption.borderColor);
context.setFillStyle(hexToRgb(series[i].color, funnelOption.fillOpacity));
context.moveTo(0, 0);
context.lineTo(-series[i-1].radius, 0);
context.lineTo(-series[i].radius, -eachSpacing);
context.lineTo(series[i].radius, -eachSpacing);
context.lineTo(series[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(series, opts, context, eachSpacing, funnelOption.labelAlign, activeWidth, centerPosition);
}
return {
center: centerPosition,
radius: radius,
series: series
};
}
function drawFunnelText(series, opts, context, eachSpacing, labelAlign,activeWidth, centerPosition){
for(let i=0;i<series.length;i++){
let item = series[i];
let startX,endX,startY,fontSize;
let text = item.format ? item.format(+item._proportion_.toFixed(2)) : util.toFixed(item._proportion_ * 100) +'%';
if(labelAlign == 'right'){
if(i==0){
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.fontSize;
context.setLineWidth(1 * opts.pixelRatio);
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 || '#666666');
context.fillText(text, endX+5, startY + fontSize/2 -2);
context.closePath();
context.stroke();
context.closePath();
}else{
if(i==0){
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.fontSize;
context.setLineWidth(1 * opts.pixelRatio);
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 || '#666666');
context.fillText(text, endX-5-measureText(text), startY + fontSize/2 -2);
context.closePath();
context.stroke();
context.closePath();
}
}
}
function drawCanvas(opts, context) {
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 || 'linear';
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);
}
// stop animation immediately
// and tigger onAnimationFinish
Animation.prototype.stop = function() {
this.isStop = true;
};
function drawCharts(type, opts, config, context) {
var _this = this;
var series = opts.series;
var categories = opts.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];
}
//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),
legendHeight = _calLegendData.area.wholeHeight,
legendWidth = _calLegendData.area.wholeWidth;
//TODO废弃config.legendHeight参数
config.legendHeight = legendHeight;
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 === 'area' || opts.type === 'mix' || opts.type === 'candle') {
_calYAxisData = calYAxisData(series, opts, config);
yAxisWidth = _calYAxisData.yAxisWidth;
config.yAxisWidth = yAxisWidth;
opts.area[3] += yAxisWidth;
} else {
config.yAxisWidth = yAxisWidth;
}
opts.chartData.yAxisData = _calYAxisData;
if (opts.categories && opts.categories.length) {
opts.chartData.xAxisData = getXAxisPoints(opts.categories, opts, config);
let _calCategoriesData = calCategoriesData(opts.categories, opts, config, opts.chartData.xAxisData.eachSpacing),
xAxisHeight = _calCategoriesData.xAxisHeight,
angle = _calCategoriesData.angle;
config.xAxisHeight = xAxisHeight;
config._xAxisTextAngle_ = angle;
opts.area[2] += xAxisHeight;
opts.chartData.categoriesData = _calCategoriesData;
}
//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,
startTouchX: offsetLeft,
distance: 0,
lastMoveTime: 0
};
opts._scrollDistance_ = offsetLeft;
}
if (type === 'pie' || type === 'ring' || type === 'rose') {
config._pieTextMaxLength_ = opts.dataLabel === false ? 0 : getPieTextMaxLength(seriesMA);
}
switch (type) {
case 'word':
let wordOption = assign({},{
type: 'normal',
autoColors: true
},opts.extra.word);
if(opts.updateData==true || opts.updateData==undefined){
opts.chartData.wordCloudData=getWordCloudPoint(opts,wordOption.type);
}
this.animationInstance = new Animation({
timing: 'easeInOut',
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.event.trigger('renderComplete');
}
});
break;
case 'map':
context.clearRect(0, 0, opts.width, opts.height);
drawMapDataPoints(series, opts, config, context);
break;
case 'funnel':
this.animationInstance = new Animation({
timing: 'easeInOut',
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.event.trigger('renderComplete');
}
});
break;
case 'line':
this.animationInstance = new Animation({
timing: 'easeIn',
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,
minRange = _drawLineDataPoints.minRange,
maxRange = _drawLineDataPoints.maxRange;
opts.chartData.xAxisPoints = xAxisPoints;
opts.chartData.calPoints = calPoints;
opts.chartData.eachSpacing = eachSpacing;
drawYAxis(series, opts, config, context);
if (opts.enableMarkLine !== false && process === 1) {
drawMarkLine(minRange, maxRange, 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.event.trigger('renderComplete');
}
});
break;
case 'mix':
this.animationInstance = new Animation({
timing: 'easeIn',
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,
minRange = _drawMixDataPoints.minRange,
maxRange = _drawMixDataPoints.maxRange;
opts.chartData.xAxisPoints = xAxisPoints;
opts.chartData.calPoints = calPoints;
opts.chartData.eachSpacing = eachSpacing;
drawYAxis(series, opts, config, context);
if (opts.enableMarkLine !== false && process === 1) {
drawMarkLine(minRange, maxRange, 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.event.trigger('renderComplete');
}
});
break;
case 'column':
this.animationInstance = new Animation({
timing: 'easeIn',
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,
minRange = _drawColumnDataPoints.minRange,
maxRange = _drawColumnDataPoints.maxRange;
opts.chartData.xAxisPoints = xAxisPoints;
opts.chartData.calPoints = calPoints;
opts.chartData.eachSpacing = eachSpacing;
drawYAxis(series, opts, config, context);
if (opts.enableMarkLine !== false && process === 1) {
drawMarkLine(minRange, maxRange, 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.event.trigger('renderComplete');
}
});
break;
case 'area':
this.animationInstance = new Animation({
timing: 'easeIn',
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,
minRange = _drawAreaDataPoints.minRange,
maxRange = _drawAreaDataPoints.maxRange;
opts.chartData.xAxisPoints = xAxisPoints;
opts.chartData.calPoints = calPoints;
opts.chartData.eachSpacing = eachSpacing;
drawYAxis(series, opts, config, context);
if (opts.enableMarkLine !== false && process === 1) {
drawMarkLine(minRange, maxRange, 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.event.trigger('renderComplete');
}
});
break;
case 'ring':
case 'pie':
this.animationInstance = new Animation({
timing: 'easeInOut',
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.event.trigger('renderComplete');
}
});
break;
case 'rose':
this.animationInstance = new Animation({
timing: 'easeInOut',
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.event.trigger('renderComplete');
}
});
break;
case 'radar':
this.animationInstance = new Animation({
timing: 'easeInOut',
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.event.trigger('renderComplete');
}
});
break;
case 'arcbar':
this.animationInstance = new Animation({
timing: 'easeInOut',
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.event.trigger('renderComplete');
}
});
break;
case 'gauge':
this.animationInstance = new Animation({
timing: 'easeInOut',
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.event.trigger('renderComplete');
}
});
break;
case 'candle':
this.animationInstance = new Animation({
timing: 'easeIn',
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,
minRange = _drawCandleDataPoints.minRange,
maxRange = _drawCandleDataPoints.maxRange;
opts.chartData.xAxisPoints = xAxisPoints;
opts.chartData.calPoints = calPoints;
opts.chartData.eachSpacing = eachSpacing;
drawYAxis(series, opts, config, context);
if (opts.enableMarkLine !== false && process === 1) {
drawMarkLine(minRange, maxRange, 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.event.trigger('renderComplete');
}
});
break;
}
}
// simple event implement
function Event() {
this.events = {};
}
Event.prototype.addEventListener = function(type, listener) {
this.events[type] = this.events[type] || [];
this.events[type].push(listener);
};
Event.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.error(e);
}
});
}
};
var Charts = function Charts(opts) {
opts.pixelRatio = opts.pixelRatio ? opts.pixelRatio : 1;
opts.fontSize = opts.fontSize ? opts.fontSize * opts.pixelRatio : 13 * opts.pixelRatio;
opts.title = assign({}, opts.title);
opts.subtitle = assign({}, opts.subtitle);
opts.duration = opts.duration ? opts.duration : 1000;
opts.yAxis = assign({}, {
gridType: 'solid',
dashLength: 4 * opts.pixelRatio
}, opts.yAxis);
opts.xAxis = assign({}, {
rotateLabel: false,
type: 'calibration',
gridType: 'solid',
dashLength: 4 * opts.pixelRatio,
scrollAlign: 'left',
boundaryGap:'center'
}, opts.xAxis);
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: '#333333',
format: {},
hiddenColor: '#CECECE'
}, opts.legend);
opts.legend.borderWidth = opts.legend.borderWidth * opts.pixelRatio;
opts.legend.itemGap = opts.legend.itemGap * opts.pixelRatio;
opts.legend.padding = opts.legend.padding * opts.pixelRatio;
opts.legend.margin = opts.legend.margin * opts.pixelRatio;
opts.extra = assign({}, opts.extra);
opts.rotate = opts.rotate ? true : false;
opts.animation = opts.animation ? true : false;
let config$$1 = JSON.parse(JSON.stringify(config));
config$$1.colors = opts.colors ? opts.colors : config$$1.colors;
config$$1.yAxisTitleWidth = opts.yAxis.disabled !== true && opts.yAxis.title ? config$$1.yAxisTitleWidth : 0;
if (opts.type == 'pie' || opts.type == 'ring') {
config$$1.pieChartLinePadding = opts.dataLabel === false ? 0 : opts.extra.pie.labelWidth * opts.pixelRatio || config$$1.pieChartLinePadding * opts.pixelRatio;
}
if (opts.type == 'rose') {
config$$1.pieChartLinePadding = opts.dataLabel === false ? 0 : opts.extra.rose.labelWidth * opts.pixelRatio || config$$1.pieChartLinePadding * opts.pixelRatio;
}
config$$1.pieChartTextPadding = opts.dataLabel === false ? 0 : config$$1.pieChartTextPadding * opts.pixelRatio;
config$$1.yAxisSplit = opts.yAxis.splitNumber ? opts.yAxis.splitNumber : config.yAxisSplit;
//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;
for (let i = 0; i < 4; i++) {
opts.padding[i] *= opts.pixelRatio;
}
config$$1.yAxisWidth = config.yAxisWidth * opts.pixelRatio;
config$$1.xAxisHeight = config.xAxisHeight * opts.pixelRatio;
if (opts.enableScroll && opts.xAxis.scrollShow) {
config$$1.xAxisHeight += 6 * opts.pixelRatio;
}
config$$1.xAxisLineHeight = config.xAxisLineHeight * opts.pixelRatio;
config$$1.legendHeight = config.legendHeight * opts.pixelRatio;
config$$1.fontSize = opts.fontSize;
config$$1.titleFontSize = config.titleFontSize * opts.pixelRatio;
config$$1.subtitleFontSize = config.subtitleFontSize * opts.pixelRatio;
config$$1.toolTipPadding = config.toolTipPadding * opts.pixelRatio;
config$$1.toolTipLineHeight = config.toolTipLineHeight * opts.pixelRatio;
config$$1.columePadding = config.columePadding * opts.pixelRatio;
opts.$this = opts.$this ? opts.$this : this;
this.context = uni.createCanvasContext(opts.canvasId, opts.$this);
/* 兼容原生H5
this.context = document.getElementById(opts.canvasId).getContext("2d");
this.context.setStrokeStyle = function(e){ return this.strokeStyle=e; }
this.context.setLineWidth = function(e){ return this.lineWidth=e; }
this.context.setLineCap = function(e){ return this.lineCap=e; }
this.context.setFontSize = function(e){ return this.font=e+"px sans-serif"; }
this.context.setFillStyle = function(e){ return this.fillStyle=e; }
this.context.draw = function(){ }
*/
opts.chartData = {};
this.event = new Event();
this.scrollOption = {
currentOffset: 0,
startTouchX: 0,
distance: 0,
lastMoveTime: 0
};
this.opts = opts;
this.config = config$$1;
drawCharts.call(this, opts.type, opts, config$$1, this.context);
};
Charts.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),
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);
};
Charts.prototype.zoom = function() {
var val = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : this.opts.xAxis.itemCount;
if (this.opts.enableScroll !== true) {
console.log('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),
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: offsetLeft,
distance: 0,
lastMoveTime: 0
};
this.opts._scrollDistance_ = offsetLeft;
drawCharts.call(this, this.opts.type, this.opts, this.config, this.context);
};
Charts.prototype.stopAnimation = function() {
this.animationInstance && this.animationInstance.stop();
};
Charts.prototype.addEventListener = function(type, listener) {
this.event.addEventListener(type, listener);
};
Charts.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' || this.opts.type === 'rose') {
return findPieChartCurrentIndex({
x: _touches$.x,
y: _touches$.y
}, this.opts.chartData.pieData);
} 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 {
return findCurrentIndex({
x: _touches$.x,
y: _touches$.y
}, this.opts.chartData.xAxisPoints, this.opts, this.config, Math.abs(this.scrollOption.currentOffset));
}
}
return -1;
};
Charts.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;
};
Charts.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) {
this.opts.series[index].show = !this.opts.series[index].show;
this.opts.animation = option.animation ? true : false;
drawCharts.call(this, this.opts.type, this.opts, this.config, this.context);
}
}
};
Charts.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("touchError");
}
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') {
var index = this.getCurrentDataIndex(e);
if (index > -1) {
var seriesData = getSeriesDataItem(this.opts.series, index);
if (seriesData.length !== 0) {
var _getToolTipData = getToolTipData(seriesData, this.opts.chartData.calPoints, index, this.opts.categories,option),
textList = _getToolTipData.textList,
offset = _getToolTipData.offset;
offset.y = _touches$.y;
opts.tooltip = {
textList: textList,
offset: offset,
option: option,
index: index
};
}
}
drawCharts.call(this, opts.type, opts, this.config, this.context);
}
if (this.opts.type === 'mix') {
var index = this.getCurrentDataIndex(e);
if (index > -1) {
var currentOffset = this.scrollOption.currentOffset;
var opts = assign({}, this.opts, {
_scrollDistance_: currentOffset,
animation: false
});
var seriesData = getSeriesDataItem(this.opts.series, index);
if (seriesData.length !== 0) {
var _getMixToolTipData = getMixToolTipData(seriesData, this.opts.chartData.calPoints, index, this.opts.categories,option),
textList = _getMixToolTipData.textList,
offset = _getMixToolTipData.offset;
offset.y = _touches$.y;
opts.tooltip = {
textList: textList,
offset: offset,
option: option,
index: index
};
}
}
drawCharts.call(this, opts.type, opts, this.config, this.context);
}
if (this.opts.type === 'candle') {
var index = this.getCurrentDataIndex(e);
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.chartData.calPoints,
index, this.opts.categories, this.opts.extra.candle, option),
textList = _getToolTipData.textList,
offset = _getToolTipData.offset;
offset.y = _touches$.y;
opts.tooltip = {
textList: textList,
offset: offset,
option: option,
index: index
};
}
}
drawCharts.call(this, opts.type, opts, this.config, this.context);
}
if (this.opts.type === 'pie' || this.opts.type === 'ring' || this.opts.type === 'rose'||this.opts.type === 'funnel' ) {
var index = this.getCurrentDataIndex(e);
if (index > -1) {
var currentOffset = this.scrollOption.currentOffset;
var opts = assign({}, this.opts, {
_scrollDistance_: currentOffset,
animation: false
});
var seriesData = this.opts._series_[index];
var textList = [{
text: option.format ? option.format(seriesData) : seriesData.name + ': ' + seriesData.data,
color: seriesData.color
}];
var offset = {
x: _touches$.x,
y: _touches$.y
};
opts.tooltip = {
textList: textList,
offset: offset,
option: option,
index: index
};
}
drawCharts.call(this, opts.type, opts, this.config, this.context);
}
if (this.opts.type === 'map'||this.opts.type === 'word') {
var index = this.getCurrentDataIndex(e);
if (index > -1) {
var currentOffset = this.scrollOption.currentOffset;
var opts = assign({}, this.opts, {
_scrollDistance_: currentOffset,
animation: false
});
var seriesData = this.opts._series_[index];
var textList = [{
text: option.format ? option.format(seriesData) : seriesData.properties.name ,
color: seriesData.color
}];
var offset = {
x: _touches$.x,
y: _touches$.y
};
opts.tooltip = {
textList: textList,
offset: offset,
option: option,
index: index
};
}
opts.updateData = false;
drawCharts.call(this, opts.type, opts, this.config, this.context);
}
if (this.opts.type === 'radar') {
var index = this.getCurrentDataIndex(e);
if (index > -1) {
var currentOffset = this.scrollOption.currentOffset;
var opts = assign({}, this.opts, {
_scrollDistance_: currentOffset,
animation: false
});
var seriesData = getSeriesDataItem(this.opts.series, index);
if (seriesData.length !== 0) {
var textList = seriesData.map(function(item) {
return {
text: option.format ? option.format(item) : item.name + ': ' + item.data,
color: item.color
};
});
var offset = {
x: _touches$.x,
y: _touches$.y
};
opts.tooltip = {
textList: textList,
offset: offset,
option: option,
index: index
};
}
}
drawCharts.call(this, opts.type, opts, this.config, this.context);
}
};
Charts.prototype.translate = function(distance) {
this.scrollOption = {
currentOffset: distance,
startTouchX: distance,
distance: 0,
lastMoveTime: 0
};
let opts = assign({}, this.opts, {
_scrollDistance_: distance,
animation: false
});
drawCharts.call(this, this.opts.type, opts, this.config, this.context);
};
Charts.prototype.scrollStart = function(e) {
var touches = null;
if (e.changedTouches) {
touches = e.changedTouches[0];
} else {
touches = e.mp.changedTouches[0];
}
var _touches$ = getTouches(touches, this.opts, e);
if (touches && this.opts.enableScroll === true) {
this.scrollOption.startTouchX = _touches$.x;
}
};
Charts.prototype.scroll = function(e) {
if (this.scrollOption.lastMoveTime === 0) {
this.scrollOption.lastMoveTime = Date.now();
}
let Limit = this.opts.extra.touchMoveLimit || 20;
let currMoveTime = Date.now();
let duration = currMoveTime - this.scrollOption.lastMoveTime;
if (duration < Math.floor(1000 / Limit)) return;
this.scrollOption.lastMoveTime = currMoveTime;
var touches = null;
if (e.changedTouches) {
touches = e.changedTouches[0];
} else {
touches = e.mp.changedTouches[0];
}
if (touches && this.opts.enableScroll === true) {
var _touches$ = getTouches(touches, this.opts, e);
var _distance;
_distance = _touches$.x - this.scrollOption.startTouchX;
var currentOffset = this.scrollOption.currentOffset;
var validDistance = calValidDistance(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
});
drawCharts.call(this, opts.type, opts, this.config, this.context);
return currentOffset + _distance;
}
};
Charts.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;
}
};
if (typeof module === "object" && typeof module.exports === "object") {
module.exports = Charts;
//export default Charts;//建议使用nodejs的module导出方式，如报错请使用export方式导出
}