使用uniapp绘制一个折线图（uCharts）

uCharts简介，这是官方介绍，上面有全部的示例，我这篇只是取一部分实现的

需要引入u-charts.js，这个文件的代码我放在最后面，当然也可以官方Gitee下载
效果图

代码：

<template>
	<view>
		<canvas canvas-id="canvasLineA" id="canvasLineA" class="charts" @touchmove="moveLineA" @touchend="moveLineA">canvas>
		
	view>
template>

<script>
	import uCharts from '../../components/u-charts/u-charts.js'; //引入js文件
	var _self; //用于全局使用this
	var canvaLineA = null; //uCharts实例
	export default {
		data() {
			return {
				cWidth: '',
				cHeight: '', //画布的宽高
				data: { //数据
					categories: ["2012", "2013", "2014", "2015", "2016", "2017"],
					series: [{
						name: "成交量A",
						data: [35, 8, 25, 37, 4, 20]
					}, {
						name: "成交量B",
						data: [70, 40, 65, 100, 44, 68]
					}, {
						name: "成交量C",
						data: [100, 80, 4, 150, 112, 132]
					}]
				}
			}
		},
		onLoad() {
			this.cWidth = uni.upx2px(750);
			this.cHeight = uni.upx2px(500); //设置宽高
			_self = this //声明this
			_self.showLineA("canvasLineA", _self.data); //触发执行函数
		},
		methods: {
			showLineA(canvasId, chartData) {
				canvaLineA = new uCharts({ //这些配置项的意思看这：https://www.kancloud.cn/qiun/ucharts/1172125
					$this: _self, //指针
					canvasId: canvasId, //id
					type: 'line', //类型
					colors: ['#facc14', '#f04864', '#90ed7d'], //每一条的颜色
					fontSize: 11, //字体大小
					padding: [15, 15, 0, 15], //空白区域值
					legend: { //图例相关配置
						show: true,
						padding: 5,
						lineHeight: 11,
						margin: 0,
					},
					dataLabel: false, //显示数据标签内容值
					categories: chartData.categories, //数据类别
					series: chartData.series, //数据列表
					xAxis: { //X轴配置
						gridColor: '#CCCCCC', //X轴网格颜色
						gridType: 'dash', //X轴网格线型 'solid'为实线、'dash'为虚线`
						dashLength: 8, //X轴网格为虚线时，单段虚线长度
					},
					yAxis: { //y轴配置
						gridType: 'dash',
						gridColor: '#CCCCCC',
						dashLength: 8,
					},
					width: _self.cWidth, //canvas宽度，单位为px
					height: _self.cHeight, //canvas高度，单位为px
					extra: { //扩展配置
						line: {
							type: 'curve' //曲线  curve曲线，straight直线
						}
					}
				});
			},
			moveLineA(e) {
				canvaLineA.showToolTip(e, { //详情框
					format: function(item, category) {
						return category + ' ' + item.name + ':' + item.data
					}
				});
			}
		}
	}
script>

<style>
	.charts {
		width: 750upx;
		height: 500upx;
		background-color: #FFFFFF;
	}
style>

u-charts.js

/*
 * uCharts v1.9.5.20201214
 * 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,
  radarLabelTextMargin: 15,
  gaugeLabelTextMargin: 15
};

let assign = function (target, ...varArgs) {
    if (target == null) {
        throw new TypeError('Cannot convert undefined or null to object');
    }
    if (!varArgs || varArgs.length <= 0) {
        return target;
    }
    // 深度合并对象
    function deepAssign(obj1, obj2) {
        for (let key in obj2) {
            obj1[key] = obj1[key] && obj1[key].toString() === "[object Object]" ?
                deepAssign(obj1[key], obj2[key]) : obj1[key] = obj2[key];
        }
        return obj1;
    }

    varArgs.forEach(val => {
        target = deepAssign(target, val);
    });
    return target;
};

var util = {
  toFixed: function toFixed(num, limit) {
    limit = limit || 2;
    if (this.isFloat(num)) {
      num = num.toFixed(limit);
    }
    return num;
  },
  isFloat: function isFloat(num) {
    return num % 1 !== 0;
  },
  approximatelyEqual: function approximatelyEqual(num1, num2) {
    return Math.abs(num1 - num2) < 1e-10;
  },
  isSameSign: function isSameSign(num1, num2) {
    return Math.abs(num1) === num1 && Math.abs(num2) === num2 || Math.abs(num1) !== num1 && Math.abs(num2) !== num2;
  },
  isSameXCoordinateArea: function isSameXCoordinateArea(p1, p2) {
    return this.isSameSign(p1.x, p2.x);
  },
  isCollision: function isCollision(obj1, obj2) {
    obj1.end = {};
    obj1.end.x = obj1.start.x + obj1.width;
    obj1.end.y = obj1.start.y - obj1.height;
    obj2.end = {};
    obj2.end.x = obj2.start.x + obj2.width;
    obj2.end.y = obj2.start.y - obj2.height;
    var flag = obj2.start.x > obj1.end.x || obj2.end.x < obj1.start.x || obj2.end.y > obj1.start.y || obj2.start.y < obj1.end.y;
    return !flag;
  }
};

//兼容H5点击事件
function getH5Offset(e) {
  e.mp = {
    changedTouches: []
  };
  e.mp.changedTouches.push({
    x: e.offsetX,
    y: e.offsetY
  });
  return e;
}

// hex 转 rgba
function hexToRgb(hexValue, opc) {
  var rgx = /^#?([a-f\d])([a-f\d])([a-f\d])$/i;
  var hex = hexValue.replace(rgx, function(m, r, g, b) {
    return r + r + g + g + b + b;
  });
  var rgb = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex);
  var r = parseInt(rgb[1], 16);
  var g = parseInt(rgb[2], 16);
  var b = parseInt(rgb[3], 16);
  return 'rgba(' + r + ',' + g + ',' + b + ',' + opc + ')';
}

function findRange(num, type, limit) {
  if (isNaN(num)) {
    throw new Error('[uCharts] 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(self,distance, chartData, config, opts) {
  var dataChartAreaWidth = opts.width - opts.area[1] - opts.area[3];
  var dataChartWidth = chartData.eachSpacing * (opts.chartData.xAxisData.xAxisPoints.length-1);
  var validDistance = distance;
  if (distance >= 0) {
    validDistance = 0;
		self.event.trigger('scrollLeft');
  } else if (Math.abs(distance) >= dataChartWidth - dataChartAreaWidth) {
    validDistance = dataChartAreaWidth - dataChartWidth;
		self.event.trigger('scrollRight');
  }
  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;
    }
  }
	function isNotMiddlePointX(points, i) {
	  if (points[i - 1] && points[i + 1]) {
	    return points[i].x >= Math.max(points[i - 1].x, points[i + 1].x) || points[i].x <= Math.min(points[i - 1].x,points[i + 1].x);
	  } else {
	    return false;
	  }
	}
  var a = 0.2;
  var b = 0.2;
  var pAx = null;
  var pAy = null;
  var pBx = null;
  var pBy = null;
  if (i < 1) {
    pAx = points[0].x + (points[1].x - points[0].x) * a;
    pAy = points[0].y + (points[1].y - points[0].y) * a;
  } else {
    pAx = points[i].x + (points[i + 1].x - points[i - 1].x) * a;
    pAy = points[i].y + (points[i + 1].y - points[i - 1].y) * a;
  }

  if (i > points.length - 3) {
    var last = points.length - 1;
    pBx = points[last].x - (points[last].x - points[last - 1].x) * b;
    pBy = points[last].y - (points[last].y - points[last - 1].y) * b;
  } else {
    pBx = points[i + 1].x - (points[i + 2].x - points[i].x) * b;
    pBy = points[i + 1].y - (points[i + 2].y - points[i].y) * b;
  }
  if (isNotMiddlePoint(points, i + 1)) {
    pBy = points[i + 1].y;
  }
  if (isNotMiddlePoint(points, i)) {
    pAy = points[i].y;
  }
	if (isNotMiddlePointX(points, i + 1)) {
	  pBx = points[i + 1].x;
	}
	if (isNotMiddlePointX(points, i)) {
	  pAx = points[i].x;
	}
	if (pAy >= Math.max(points[i].y, points[i + 1].y) || pAy <= Math.min(points[i].y, points[i + 1].y)) {
	pAy = points[i].y;
	}
	if (pBy >= Math.max(points[i].y, points[i + 1].y) || pBy <= Math.min(points[i].y, points[i + 1].y)) {
	pBy = points[i + 1].y;
	}
	if (pAx >= Math.max(points[i].x, points[i + 1].x) || pAx <= Math.min(points[i].x, points[i + 1].x)) {
	pAx = points[i].x;
	}
	if (pBx >= Math.max(points[i].x, points[i + 1].x) || pBx <= Math.min(points[i].x, points[i + 1].x)) {
	pBx = points[i + 1].x;
	}
  return {
    ctrA: {
      x: pAx,
      y: pAy
    },
    ctrB: {
      x: pBx,
      y: pBy
    }
  };
}

function convertCoordinateOrigin(x, y, center) {
  return {
    x: center.x + x,
    y: center.y - y
  };
}

function avoidCollision(obj, target) {
  if (target) {
    // is collision test
    while (util.isCollision(obj, target)) {
      if (obj.start.x > 0) {
        obj.start.y--;
      } else if (obj.start.x < 0) {
        obj.start.y++;
      } else {
        if (obj.start.y > 0) {
          obj.start.y++;
        } else {
          obj.start.y--;
        }
      }
    }
  }
  return obj;
}

function 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.index) {
      item.index = 0;
    }
    if (!item.type) {
      item.type = opts.type;
    }
    if (typeof item.show == "undefined") {
      item.show = true;
    }
    if (!item.type) {
      item.type = opts.type;
    }
    if (!item.pointShape) {
      item.pointShape = "circle";
    }
    if (!item.legendShape) {
      switch (item.type) {
        case 'line':
          item.legendShape = "line";
          break;
        case 'column':
          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) {
		let titleText=[];
		if(categories){
			titleText=categories;
		}else{
			titleText=item.data;
		}
    return {
      text: option.format ? option.format(item, titleText[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) {
      if(item.data[1] - item.data[0] < 0){
      	color[1] = downColor;
      }else{
      	color[1] = upColor;
      }
    } else {
      if (item.data[0] < series[index - 1][1]) {
        color[0] = downColor;
      }
      if (item.data[1] < item.data[0]) {
        color[1] = downColor;
      }
      if (item.data[2] > series[index - 1][1]) {
        color[2] = upColor;
      }
      if (item.data[3] < series[index - 1][1]) {
        color[3] = downColor;
      }
    }
    let text1 = {
      text: '开盘：' + item.data[0],
      color: color[0]
    };
    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, calPoints, opts, config) {
  var offset = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 0;
  var currentIndex = -1;
  var spacing = opts.chartData.eachSpacing/2;
	let xAxisPoints=[];
	if(calPoints.length>0){
		for(let i=1;i<opts.chartData.xAxisPoints.length;i++){
				xAxisPoints.push(opts.chartData.xAxisPoints[i]-spacing)
		}
		if((opts.type=='line' || opts.type=='area') && opts.xAxis.boundaryGap=='justify'){
		  spacing = opts.chartData.eachSpacing/2;
		}
		if(!opts.categories){
			spacing=0
		}
		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,opts.xAxis.fontSize||config.fontSize);
  });
  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 getXAxisTextList(series, opts, config) {
  var index = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : -1;
  var data = dataCombine(series);
  var sorted = [];
  // remove null from data
  data = data.filter(function(item) {
    //return item !== null;
    if (typeof item === 'object' && item !== null) {
      if (item.constructor.toString().indexOf('Array')>-1) {
        return item !== null;
      } else {
        return item.value !== null;
      }
    } else {
      return item !== null;
    }
  });
  data.map(function(item) {
    if (typeof item === 'object') {
      if (item.constructor.toString().indexOf('Array')>-1) {
				if(opts.type=='candle'){
					item.map(function(subitem) {
					  sorted.push(subitem);
					})
				}else{
					sorted.push(item[0]);
				}
      } else {
        sorted.push(item.value);
      }
    } else {
      sorted.push(item);
    }
  })
	
  var minData = 0;
  var maxData = 0;
  if (sorted.length > 0) {
    minData = Math.min.apply(this, sorted);
    maxData = Math.max.apply(this, sorted);
  }
  //为了兼容v1.9.0之前的项目
  if(index>-1){
    if (typeof opts.xAxis.data[index].min === 'number') {
      minData = Math.min(opts.xAxis.data[index].min, minData);
    }
    if (typeof opts.xAxis.data[index].max === 'number') {
      maxData = Math.max(opts.xAxis.data[index].max, maxData);
    }
  }else{
    if (typeof opts.xAxis.min === 'number') {
      minData = Math.min(opts.xAxis.min, minData);
    }
    if (typeof opts.xAxis.max === 'number') {
      maxData = Math.max(opts.xAxis.max, maxData);
    }
  }
  

  if (minData === maxData) {
    var rangeSpan = maxData || 10;
    maxData += rangeSpan;
  }

  //var dataRange = getDataRange(minData, maxData);
  var minRange = minData;
  var maxRange = maxData;

  var range = [];
  var eachRange = (maxRange - minRange) / opts.xAxis.splitNumber;

  for (var i = 0; i <= opts.xAxis.splitNumber; i++) {
    range.push(minRange + eachRange * i);
  }
  return range;
}

function calXAxisData(series, opts, config){
    var result = {
        angle: 0,
        xAxisHeight: config.xAxisHeight
    };

    result.ranges = getXAxisTextList(series, opts, config);
    result.rangesFormat = result.ranges.map(function(item){
        item = opts.xAxis.format? opts.xAxis.format(item):util.toFixed(item, 2);
        return item;
    });
		
    var xAxisScaleValues = result.ranges.map(function (item) {
        // 如果刻度值是浮点数,则保留两位小数
        item = util.toFixed(item, 2);
        // 若有自定义格式则调用自定义的格式化函数
        item = opts.xAxis.format ? opts.xAxis.format(Number(item)) : item;
        return item;
    });

    result = Object.assign(result,getXAxisPoints(xAxisScaleValues, opts, config));
    // 计算X轴刻度的属性譬如每个刻度的间隔,刻度的起始点\结束点以及总长
    var eachSpacing = result.eachSpacing;

    var textLength = xAxisScaleValues.map(function (item) {
        return measureText(item);
    });
    
    // get max length of categories text
    var maxTextLength = Math.max.apply(this, textLength);

    // 如果刻度值文本内容过长,则将其逆时针旋转45°
    if (maxTextLength + 2 * config.xAxisTextPadding > eachSpacing) {
        result.angle = 45 * Math.PI / 180;
        result.xAxisHeight = 2 * config.xAxisTextPadding + maxTextLength * Math.sin(result.angle);
    }

    if (opts.xAxis.disabled === true) {
        result.xAxisHeight = 0;
    }

    return result;
}

function getRadarDataPoints(angleList, center, radius, series, opts) {
  var process = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : 1;

  var radarOption = opts.extra.radar || {};
  radarOption.max = radarOption.max || 0;
  var maxData = Math.max(radarOption.max, Math.max.apply(null, dataCombine(series)));

  var data = [];
  for (let i = 0; i < series.length; i++) {
    let each = series[i];
    let listItem = {};
    listItem.color = each.color;
		listItem.legendShape = each.legendShape;
		listItem.pointShape = each.pointShape;
    listItem.data = [];
    each.data.forEach(function(item, index) {
      let tmp = {};
      tmp.angle = angleList[index];

      tmp.proportion = item / maxData;
      tmp.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 == 'circle') {
      totalAngle = 2;
    } else {
			if (arcbarOption.endAngle < arcbarOption.startAngle) {
			  totalAngle = 2 + arcbarOption.endAngle - arcbarOption.startAngle;
			} else{
			  totalAngle = arcbarOption.startAngle - arcbarOption.endAngle;
			}
    }
    item._proportion_ = totalAngle * item.data * process + arcbarOption.startAngle;
    if (item._proportion_ >= 2) {
      item._proportion_ = item._proportion_ % 2;
    }
  }
  return series;
}

function getGaugeAxisPoints(categories, startAngle, endAngle) {
  let totalAngle = 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 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];
	var validWidth = opts.width - opts.area[1] - opts.area[3];
  data.forEach(function(item, index) {
    if (item === null) {
      points.push(null);
    } else {
      var point = {};
      point.color = item.color;
      point.x = xAxisPoints[index];
      var value = item;
      if (typeof item === 'object' && item !== null) {
				if (item.constructor.toString().indexOf('Array')>-1) {
					let xranges,xminRange,xmaxRange;
					xranges = [].concat(opts.chartData.xAxisData.ranges);
					xminRange = xranges.shift();
					xmaxRange = xranges.pop();
				  value = item[1];
					point.x = opts.area[3]+ validWidth * (item[0] - xminRange) / (xmaxRange - xminRange);
				} else {
				  value = item.value;
				}
      }
			if(boundaryGap=='center'){
			  point.x += Math.round(eachSpacing / 2);
			}
      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 index = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : -1;
  var data;
  if (stack == 'stack') {
    data = dataCombineStack(series, opts.categories.length);
  } else {
    data = dataCombine(series);
  }
  var sorted = [];
  // remove null from data
  data = data.filter(function(item) {
    //return item !== null;
    if (typeof item === 'object' && item !== null) {
      if (item.constructor.toString().indexOf('Array')>-1) {
        return item !== null;
      } else {
        return item.value !== null;
      }
    } else {
      return item !== null;
    }
  });
  data.map(function(item) {
    if (typeof item === 'object') {
      if (item.constructor.toString().indexOf('Array')>-1) {
				if(opts.type=='candle'){
					item.map(function(subitem) {
					  sorted.push(subitem);
					})
				}else{
					sorted.push(item[1]);
				}
      } else {
        sorted.push(item.value);
      }
    } else {
      sorted.push(item);
    }
  })
	
  var minData = 0;
  var maxData = 0;
  if (sorted.length > 0) {
    minData = Math.min.apply(this, sorted);
    maxData = Math.max.apply(this, sorted);
  }
  //为了兼容v1.9.0之前的项目
  if(index>-1){
    if (typeof opts.yAxis.data[index].min === 'number') {
      minData = Math.min(opts.yAxis.data[index].min, minData);
    }
    if (typeof opts.yAxis.data[index].max === 'number') {
      maxData = Math.max(opts.yAxis.data[index].max, maxData);
    }
  }else{
    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) / opts.yAxis.splitNumber;

  for (var i = 0; i <= opts.yAxis.splitNumber; 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);
  //如果是多Y轴，重新计算
  var YLength = opts.yAxis.data.length;
  var newSeries=new Array(YLength);
  if(YLength>0){
    for(let i=0;i<YLength;i++){
      newSeries[i]=[];
      for(let j=0;j<series.length;j++){
        if(series[j].index == i){
          newSeries[i].push(series[j]);
        }
      }
    }
    var rangesArr =new Array(YLength);
    var rangesFormatArr = new Array(YLength);
    var yAxisWidthArr =new Array(YLength);
		
    for(let i=0;i<YLength;i++){
      let yData = opts.yAxis.data[i];
			//如果总开关不显示，强制每个Y轴为不显示
			if(opts.yAxis.disabled == true){
				yData.disabled = true;
			}
			rangesArr[i]=getYAxisTextList(newSeries[i], opts, config, columnstyle.type,i);
			let yAxisFontSizes = yData.fontSize || config.fontSize;
			yAxisWidthArr[i] = {position:yData.position?yData.position:'left',width:0};
			rangesFormatArr[i]= rangesArr[i].map(function(items) {
				items = util.toFixed(items, 6);
				items = yData.format ? yData.format(Number(items)) : items;
				yAxisWidthArr[i].width = Math.max(yAxisWidthArr[i].width, measureText(items, yAxisFontSizes) + 5);
				return items;
			});
			let calibration= yData.calibration? 4*opts.pixelRatio : 0 ;
			yAxisWidthArr[i].width += calibration +3*opts.pixelRatio;
      if (yData.disabled === true) {
        yAxisWidthArr[i].width=0;
      }
    }
    
  }else{
    var rangesArr =new Array(1);
    var rangesFormatArr = new Array(1);
    var yAxisWidthArr =new Array(1);
		rangesArr[0] = getYAxisTextList(series, opts, config, columnstyle.type);
		yAxisWidthArr[0] = {position:'left',width:0};
		var yAxisFontSize = opts.yAxis.fontSize || config.fontSize;
		rangesFormatArr[0] = rangesArr[0].map(function(item) {
			item = util.toFixed(item, 6);
			item = opts.yAxis.format ? opts.yAxis.format(Number(item)) : item;
			yAxisWidthArr[0].width = Math.max(yAxisWidthArr[0].width, measureText(item, yAxisFontSize) + 5);
			return item;
		});
		yAxisWidthArr[0].width += 3*opts.pixelRatio;
		if (opts.yAxis.disabled === true) {
		  yAxisWidthArr[0] = {position:'left',width:0};
		  opts.yAxis.data[0]={disabled:true};
		}else{
			opts.yAxis.data[0]={disabled:false,position:'left',max:opts.yAxis.max,min:opts.yAxis.min,format:opts.yAxis.format};
		}
    
  }

  return {
    rangesFormat: rangesFormatArr,
    ranges: rangesArr,
    yAxisWidth: yAxisWidthArr
  };
  
}

function calTooltipYAxisData(point, series, opts, config, eachSpacing) {
  let ranges = [].concat(opts.chartData.yAxisData.ranges);
  let spacingValid = opts.height - opts.area[0] - opts.area[2];
  let minAxis = opts.area[0];
  let items=[];
  for(let i=0;i<ranges.length;i++){
    let maxVal = ranges[i].shift();
    let minVal = ranges[i].pop();
    let item = maxVal - (maxVal - minVal) * (point - minAxis) / spacingValid;
    item = opts.yAxis.data[i].format ? opts.yAxis.data[i].format(Number(item)) : item.toFixed(0);
    items.push(String(item))
  }
  return items;
}

function calMarkLineData(points, opts) {
  let minRange, maxRange;
  let spacingValid = opts.height - opts.area[0] - opts.area[2];
  for (let i = 0; i < points.length; i++) {
    points[i].yAxisIndex = points[i].yAxisIndex ? points[i].yAxisIndex:0;
    let range = [].concat(opts.chartData.yAxisData.ranges[points[i].yAxisIndex]);
    minRange = range.pop();
    maxRange = range.shift();
    let height = spacingValid * (points[i].value - minRange) / (maxRange - minRange);
    points[i].y = opts.height - Math.round(height) - opts.area[2];
  }
  return points;
}

function contextRotate(context, opts) {
  if (opts.rotateLock !== true) {
    context.translate(opts.height, 0);
    context.rotate(90 * Math.PI / 180);
  } else if (opts._rotate_ !== true) {
    context.translate(opts.height, 0);
    context.rotate(90 * Math.PI / 180);
    opts._rotate_ = true;
  }
}

function drawPointShape(points, color, shape, context, opts) {
  context.beginPath();
	if(opts.dataPointShapeType == 'hollow'){
		context.setStrokeStyle(color);
		context.setFillStyle(opts.background);
		context.setLineWidth(2 * opts.pixelRatio);
	}else{
		context.setStrokeStyle("#ffffff");
		context.setFillStyle(color);
		context.setLineWidth(1 * opts.pixelRatio);
	}
  if (shape === 'diamond') {
    points.forEach(function(item, index) {
      if (item !== null) {
        context.moveTo(item.x, item.y - 4.5);
        context.lineTo(item.x - 4.5, item.y);
        context.lineTo(item.x, item.y + 4.5);
        context.lineTo(item.x + 4.5, item.y);
        context.lineTo(item.x, item.y - 4.5);
      }
    });
  } else if (shape === 'circle') {
    points.forEach(function(item, index) {
      if (item !== null) {
        context.moveTo(item.x + 2.5 * opts.pixelRatio, item.y);
        context.arc(item.x, item.y, 3 * 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) {
				if (data[index].constructor == Array) {
					value = data[index][1];
				}else{
					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 -4);
      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,item.textSize||config.fontSize);
    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(opts, config, context) {
  let markLineOption = assign({}, {
    type: 'solid',
    dashLength: 4,
    data: []
  }, opts.extra.markLine);
  let startX = opts.area[3];
  let endX = opts.width - opts.area[1];
  let points = calMarkLineData(markLineOption.data, opts);

  for (let i = 0; i < points.length; i++) {
    let item = assign({}, {
      lineColor: '#DE4A42',
      showLabel: false,
      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.area[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);
    let widthArr = opts.chartData.yAxisData.yAxisWidth;
    let tStartLeft=opts.area[3];
    let tStartRight=opts.width-opts.area[1];
    for(let i=0;i<labelText.length;i++){
      context.setFontSize(config.fontSize);
      let textWidth = measureText(labelText[i], config.fontSize);
      let bgStartX,bgEndX,bgWidth;
      if(widthArr[i].position == 'left'){
        bgStartX = tStartLeft - widthArr[i].width;
        bgEndX = Math.max(bgStartX, bgStartX + textWidth + config.toolTipPadding * 2);
      }else{
        bgStartX = tStartRight;
        bgEndX = Math.max(bgStartX + widthArr[i].width, bgStartX + textWidth + config.toolTipPadding * 2);
      }
      bgWidth = bgEndX - bgStartX;
      
      let textX = bgStartX + (bgWidth - textWidth) / 2;
      let textY = opts.tooltip.offset.y;
      context.beginPath();
      context.setFillStyle(hexToRgb(toolTipOption.labelBgColor || config.toolTipBackground, toolTipOption.labelBgOpacity || config.toolTipOpacity));
      context.setStrokeStyle(toolTipOption.labelBgColor || config.toolTipBackground);
      context.setLineWidth(1 * opts.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[i], textX, textY + 0.5 * config.fontSize);
      context.closePath();
      context.stroke();
      if(widthArr[i].position == 'left'){
        tStartLeft -=(widthArr[i].width + opts.yAxis.padding);
      }else{
        tStartRight +=widthArr[i].width+ opts.yAxis.padding;
      }
    }
  }
}

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({}, {
		showBox:true,
    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(toolTipOption.showBox == false){ return }
  // 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 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 calPoints = [];
  context.save();
	
	let leftNum=-2;
	let rightNum=xAxisPoints.length+2;
	
  if (opts._scrollDistance_ && opts._scrollDistance_ !== 0 && opts.enableScroll === true) {
    context.translate(opts._scrollDistance_, 0);
		leftNum=Math.floor(-opts._scrollDistance_/eachSpacing)-2;
		rightNum=leftNum+opts.xAxis.itemCount+4;
  }
  if (opts.tooltip && opts.tooltip.textList && opts.tooltip.textList.length && process === 1) {
    drawToolTipSplitArea(opts.tooltip.offset.x, opts, config, context, eachSpacing);
  }
	
  series.forEach(function(eachSeries, seriesIndex) {
    let ranges,minRange,maxRange;
    ranges = [].concat(opts.chartData.yAxisData.ranges[eachSeries.index]);
    minRange = ranges.pop();
    maxRange = ranges.shift();
    
    var data = eachSeries.data;
    switch (columnOption.type) {
      case 'group':
        var points = 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);
				for(let i=0;i<points.length;i++){
					let item=points[i];
          if (item !== null && i>leftNum && i<rightNum) {
            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.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.closePath();
            context.stroke();
            context.fill();
          }
        };
        break;
      case 'stack':
        // 绘制堆叠数据图
        var points = getStackDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config, seriesIndex, series, process);
        calPoints.push(points);
        points = fixColumeStackData(points, eachSpacing, series.length, seriesIndex, config, opts, series);

        for(let i=0;i<points.length;i++){
        	let item=points[i];
          if (item !== null && i>leftNum && i<rightNum) {
            context.beginPath();
            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) {
          for(let i=0;i<points.length;i++){
          	let item=points[i];
            if (item !== null && i>leftNum && i<rightNum) {
              //画背景颜色
              context.beginPath();
              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 {
          for(let i=0;i<points.length;i++){
          	let item=points[i];
            if (item !== null && i>leftNum && i<rightNum) {
              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) {
      let ranges,minRange,maxRange;
        ranges = [].concat(opts.chartData.yAxisData.ranges[eachSeries.index]);
        minRange = ranges.pop();
        maxRange = ranges.shift();
      var data = eachSeries.data;
      switch (columnOption.type) {
        case 'group':
          var points = 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
  };
}

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 xAxisData = opts.chartData.xAxisData,
    xAxisPoints = xAxisData.xAxisPoints,
    eachSpacing = xAxisData.eachSpacing;

  let calPoints = [];

  context.save();
	
	let leftNum=-2;
	let rightNum=xAxisPoints.length+2;
	let leftSpace=0;
	let rightSpace=opts.width+eachSpacing;
	
  if (opts._scrollDistance_ && opts._scrollDistance_ !== 0 && opts.enableScroll === true) {
    context.translate(opts._scrollDistance_, 0);
		leftNum=Math.floor(-opts._scrollDistance_/eachSpacing)-2;
		rightNum=leftNum+opts.xAxis.itemCount+4;
		leftSpace=-opts._scrollDistance_-eachSpacing+opts.area[3];
		rightSpace=leftSpace+(opts.xAxis.itemCount+4)*eachSpacing;
  }

  //画均线
  if (candleOption.average.show || seriesMA) { //Merge pull request !12 from 邱贵翔
    seriesMA.forEach(function(eachSeries, seriesIndex) {
      let ranges,minRange,maxRange;
      ranges = [].concat(opts.chartData.yAxisData.ranges[eachSeries.index]);
      minRange = ranges.pop();
      maxRange = ranges.shift();

      var data = eachSeries.data;
      var points = getDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config, process);
      var splitPointList = splitPoints(points);
			
			for(let i=0;i<splitPointList.length;i++){
				let points=splitPointList[i];
				context.beginPath();
				context.setStrokeStyle(eachSeries.color);
				context.setLineWidth(1);
				if (points.length === 1) {
					context.moveTo(points[0].x, points[0].y);
					context.arc(points[0].x, points[0].y, 1, 0, 2 * Math.PI);
				} else {
					context.moveTo(points[0].x, points[0].y);
					let startPoint=0;
					for(let j=0;j<points.length;j++){
						let item=points[j];
						if(startPoint==0 && item.x > leftSpace){
							context.moveTo(item.x, item.y);
							startPoint=1;
						}
						if (j > 0 && item.x > leftSpace && item.x < rightSpace) {
							var ctrlPoint = createCurveControlPoints(points, j - 1);
							context.bezierCurveTo(ctrlPoint.ctrA.x, ctrlPoint.ctrA.y, ctrlPoint.ctrB.x, ctrlPoint.ctrB.y,item.x, item.y);
						}
					}
					context.moveTo(points[0].x, points[0].y);
				}
				context.closePath();
				context.stroke();
      }
    });
  }
  //画K线
  series.forEach(function(eachSeries, seriesIndex) {
    let ranges,minRange,maxRange;
    ranges = [].concat(opts.chartData.yAxisData.ranges[eachSeries.index]);
    minRange = ranges.pop();
    maxRange = ranges.shift();
    var data = eachSeries.data;
    var points = getCandleDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config, process);
    calPoints.push(points);
    var splitPointList = splitPoints(points);

		for(let i=0;i<splitPointList[0].length;i++){
			if(i>leftNum && i<rightNum){
				let item=splitPointList[0][i];
				context.beginPath();
				//如果上涨
				if (data[i][1] - data[i][0] > 0) {
					context.setStrokeStyle(candleOption.color.upLine);
					context.setFillStyle(candleOption.color.upFill);
					context.setLineWidth(1 * opts.pixelRatio);
					context.moveTo(item[3].x, item[3].y); //顶点
					context.lineTo(item[1].x, item[1].y); //收盘中间点
					context.lineTo(item[1].x - eachSpacing / 4, item[1].y); //收盘左侧点
					context.lineTo(item[0].x - eachSpacing / 4, item[0].y); //开盘左侧点
					context.lineTo(item[0].x, item[0].y); //开盘中间点
					context.lineTo(item[2].x, item[2].y); //底点
					context.lineTo(item[0].x, item[0].y); //开盘中间点
					context.lineTo(item[0].x + eachSpacing / 4, item[0].y); //开盘右侧点
					context.lineTo(item[1].x + eachSpacing / 4, item[1].y); //收盘右侧点
					context.lineTo(item[1].x, item[1].y); //收盘中间点
					context.moveTo(item[3].x, item[3].y); //顶点
				} else {
					context.setStrokeStyle(candleOption.color.downLine);
					context.setFillStyle(candleOption.color.downFill);
					context.setLineWidth(1 * opts.pixelRatio);
					context.moveTo(item[3].x, item[3].y); //顶点
					context.lineTo(item[0].x, item[0].y); //开盘中间点
					context.lineTo(item[0].x - eachSpacing / 4, item[0].y); //开盘左侧点
					context.lineTo(item[1].x - eachSpacing / 4, item[1].y); //收盘左侧点
					context.lineTo(item[1].x, item[1].y); //收盘中间点
					context.lineTo(item[2].x, item[2].y); //底点
					context.lineTo(item[1].x, item[1].y); //收盘中间点
					context.lineTo(item[1].x + eachSpacing / 4, item[1].y); //收盘右侧点
					context.lineTo(item[0].x + eachSpacing / 4, item[0].y); //开盘右侧点
					context.lineTo(item[0].x, item[0].y); //开盘中间点
					context.moveTo(item[3].x, item[3].y); //顶点
				}
				context.closePath();
				context.fill();
				context.stroke();
			}
    }
  });

  context.restore();

  return {
    xAxisPoints: xAxisPoints,
    calPoints: calPoints,
    eachSpacing: eachSpacing
  };
}

function drawAreaDataPoints(series, opts, config, context) {
  var process = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 1;
  var areaOption = assign({},{
    type: 'straight',
    opacity: 0.2,
    addLine: false,
    width: 2,
		gradient:false
  },opts.extra.area);

  let xAxisData = opts.chartData.xAxisData,
    xAxisPoints = xAxisData.xAxisPoints,
    eachSpacing = xAxisData.eachSpacing;

  let endY = opts.height - opts.area[2];
  let calPoints = [];

  context.save();
	let leftSpace=0;
	let rightSpace=opts.width+eachSpacing;
  if (opts._scrollDistance_ && opts._scrollDistance_ !== 0 && opts.enableScroll === true) {
    context.translate(opts._scrollDistance_, 0);
		leftSpace=-opts._scrollDistance_-eachSpacing+opts.area[3];
		rightSpace=leftSpace+(opts.xAxis.itemCount+4)*eachSpacing;
  }

  series.forEach(function(eachSeries, seriesIndex) {
    let ranges,minRange,maxRange;
    ranges = [].concat(opts.chartData.yAxisData.ranges[eachSeries.index]);
    minRange = ranges.pop();
    maxRange = ranges.shift();
    let data = eachSeries.data;
    let points = getDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config, process);
    calPoints.push(points);

    let splitPointList = splitPoints(points);
    for (let i = 0; i < splitPointList.length; i++) {
      let points = splitPointList[i];
      // 绘制区域数
      context.beginPath();
      context.setStrokeStyle(hexToRgb(eachSeries.color, areaOption.opacity));
			if(areaOption.gradient){
				let gradient = context.createLinearGradient(0, opts.area[0], 0, opts.height-opts.area[2]);
				gradient.addColorStop('0', hexToRgb(eachSeries.color, areaOption.opacity));
				gradient.addColorStop('1.0',hexToRgb("#FFFFFF", 0.1));
				context.setFillStyle(gradient);
			}else{
				context.setFillStyle(hexToRgb(eachSeries.color, areaOption.opacity));
			}
      context.setLineWidth(areaOption.width * opts.pixelRatio);
      if (points.length > 1) {
        let firstPoint = points[0];
        let lastPoint = points[points.length - 1];
        context.moveTo(firstPoint.x, firstPoint.y);
				let startPoint=0;
        if (areaOption.type === 'curve') {
					for(let j=0;j<points.length;j++){
						let item=points[j];
						if(startPoint==0 && item.x > leftSpace){
							context.moveTo(item.x, item.y);
							startPoint=1;
						}
            if (j > 0 && item.x > leftSpace && item.x < rightSpace) {
              let ctrlPoint = createCurveControlPoints(points, j - 1);
              context.bezierCurveTo(ctrlPoint.ctrA.x, ctrlPoint.ctrA.y, ctrlPoint.ctrB.x, ctrlPoint.ctrB.y,item.x, item.y);
            }
          };
        } else {
					for(let j=0;j<points.length;j++){
						let item=points[j];
						if(startPoint==0 && item.x > leftSpace){
							context.moveTo(item.x, item.y);
							startPoint=1;
						}
					  if (j > 0 && item.x > leftSpace && item.x < rightSpace) {
              context.lineTo(item.x, item.y);
            }
          };
        }

        context.lineTo(lastPoint.x, endY);
        context.lineTo(firstPoint.x, endY);
        context.lineTo(firstPoint.x, firstPoint.y);
      } else {
        let item = points[0];
        context.moveTo(item.x - eachSpacing / 2, item.y);
        context.lineTo(item.x + eachSpacing / 2, item.y);
        context.lineTo(item.x + eachSpacing / 2, endY);
        context.lineTo(item.x - eachSpacing / 2, endY);
        context.moveTo(item.x - eachSpacing / 2, item.y);
      }
      context.closePath();
      context.fill();

      //画连线
      if (areaOption.addLine) {
				if (eachSeries.lineType == 'dash') {
					let dashLength = eachSeries.dashLength?eachSeries.dashLength:8;
					dashLength *= opts.pixelRatio;
				  context.setLineDash([dashLength, dashLength]);
				}
        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);
					let startPoint=0;
          if (areaOption.type === 'curve') {
            for(let j=0;j<points.length;j++){
            	let item=points[j];
            	if(startPoint==0 && item.x > leftSpace){
            		context.moveTo(item.x, item.y);
            		startPoint=1;
            	}
              if (j > 0 && item.x > leftSpace && item.x < rightSpace) {
                let ctrlPoint = createCurveControlPoints(points, j - 1);
                context.bezierCurveTo(ctrlPoint.ctrA.x, ctrlPoint.ctrA.y, ctrlPoint.ctrB.x, ctrlPoint.ctrB.y,item.x,item.y);
              }
            };
          } else {
            for(let j=0;j<points.length;j++){
            	let item=points[j];
            	if(startPoint==0 && item.x > leftSpace){
            		context.moveTo(item.x, item.y);
            		startPoint=1;
            	}
              if (j > 0 && item.x > leftSpace && item.x < rightSpace) {
                context.lineTo(item.x, item.y);
              }
            };
          }
          context.moveTo(points[0].x, points[0].y);
        }
        context.stroke();
				context.setLineDash([]);
      }
    }

    //画点
    if (opts.dataPointShape !== false) {
      drawPointShape(points, eachSeries.color, eachSeries.pointShape, context, opts);
    }

  });

  if (opts.dataLabel !== false && process === 1) {
    series.forEach(function(eachSeries, seriesIndex) {
      let ranges,minRange,maxRange;
      ranges = [].concat(opts.chartData.yAxisData.ranges[eachSeries.index]);
      minRange = ranges.pop();
      maxRange = ranges.shift();
      var data = eachSeries.data;
      var points = getDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config, process);
      drawPointText(points, eachSeries, config, context);
    });
  }

  context.restore();

  return {
    xAxisPoints: xAxisPoints,
    calPoints: calPoints,
    eachSpacing: eachSpacing
  };
}

function drawLineDataPoints(series, opts, config, context) {
  var process = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 1;
  var lineOption = assign({},{
		type: 'straight',
		width: 2
	},opts.extra.line);
	lineOption.width *=opts.pixelRatio;
	
  let xAxisData = opts.chartData.xAxisData,
    xAxisPoints = xAxisData.xAxisPoints,
    eachSpacing = xAxisData.eachSpacing;
  var calPoints = [];

  context.save();
	let leftSpace=0;
	let rightSpace=opts.width+eachSpacing;
  if (opts._scrollDistance_ && opts._scrollDistance_ !== 0 && opts.enableScroll === true) {
    context.translate(opts._scrollDistance_, 0);
		leftSpace=-opts._scrollDistance_-eachSpacing+opts.area[3];
		rightSpace=leftSpace+(opts.xAxis.itemCount+4)*eachSpacing;
  }

  series.forEach(function(eachSeries, seriesIndex) {
    let ranges,minRange,maxRange;
    ranges = [].concat(opts.chartData.yAxisData.ranges[eachSeries.index]);
    minRange = ranges.pop();
    maxRange = ranges.shift();
    var data = eachSeries.data;
    var points = getDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config, process);
    calPoints.push(points);
    var splitPointList = splitPoints(points);
		
		if (eachSeries.lineType == 'dash') {
			let dashLength = eachSeries.dashLength?eachSeries.dashLength:8;
			dashLength *= opts.pixelRatio;
		  context.setLineDash([dashLength, dashLength]);
		}
		context.beginPath();
		context.setStrokeStyle(eachSeries.color);
		context.setLineWidth(lineOption.width);
		
    splitPointList.forEach(function(points, index) {
			
      if (points.length === 1) {
        context.moveTo(points[0].x, points[0].y);
        context.arc(points[0].x, points[0].y, 1, 0, 2 * Math.PI);
      } else {
        context.moveTo(points[0].x, points[0].y);
				let startPoint=0;
        if (lineOption.type === 'curve') {
          for(let j=0;j<points.length;j++){
          	let item=points[j];
          	if(startPoint==0 && item.x > leftSpace){
          		context.moveTo(item.x, item.y);
          		startPoint=1;
          	}
            if (j > 0 && item.x > leftSpace && item.x < rightSpace) {
              var ctrlPoint = createCurveControlPoints(points, j - 1);
              context.bezierCurveTo(ctrlPoint.ctrA.x, ctrlPoint.ctrA.y, ctrlPoint.ctrB.x, ctrlPoint.ctrB.y,item.x, item.y);
            }
          };
        } else {
          for(let j=0;j<points.length;j++){
          	let item=points[j];
          	if(startPoint==0 && item.x > leftSpace){
          		context.moveTo(item.x, item.y);
          		startPoint=1;
          	}
            if (j > 0 && item.x > leftSpace && item.x < rightSpace) {
              context.lineTo(item.x, item.y);
            }
          };
        }
        context.moveTo(points[0].x, points[0].y);
      }
      
    });
		
		context.stroke();
		context.setLineDash([]);
		
    if (opts.dataPointShape !== false) {
      drawPointShape(points, eachSeries.color, eachSeries.pointShape, context, opts);
    }
  });

  if (opts.dataLabel !== false && process === 1) {
    series.forEach(function(eachSeries, seriesIndex) {
      let ranges,minRange,maxRange;
      ranges = [].concat(opts.chartData.yAxisData.ranges[eachSeries.index]);
      minRange = ranges.pop();
      maxRange = ranges.shift();
      var data = eachSeries.data;
      var points = getDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config, process);
      drawPointText(points, eachSeries, config, context);
    });
  }

  context.restore();

  return {
    xAxisPoints: xAxisPoints,
    calPoints: calPoints,
    eachSpacing: eachSpacing
  };
}

function drawMixDataPoints(series, opts, config, context) {
  let process = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 1;
  
  let xAxisData = opts.chartData.xAxisData,
    xAxisPoints = xAxisData.xAxisPoints,
    eachSpacing = xAxisData.eachSpacing;

  let endY = opts.height - opts.area[2];
  let calPoints = [];

  var columnIndex = 0;
  var columnLength = 0;
  series.forEach(function(eachSeries, seriesIndex) {
    if (eachSeries.type == 'column') {
      columnLength += 1;
    }
  });
  context.save();
	let leftNum=-2;
	let rightNum=xAxisPoints.length+2;
	let leftSpace=0;
	let rightSpace=opts.width+eachSpacing;
  if (opts._scrollDistance_ && opts._scrollDistance_ !== 0 && opts.enableScroll === true) {
    context.translate(opts._scrollDistance_, 0);
		leftNum=Math.floor(-opts._scrollDistance_/eachSpacing)-2;
		rightNum=leftNum+opts.xAxis.itemCount+4;
		leftSpace=-opts._scrollDistance_-eachSpacing+opts.area[3];
		rightSpace=leftSpace+(opts.xAxis.itemCount+4)*eachSpacing;
  }

  series.forEach(function(eachSeries, seriesIndex) {
    let ranges,minRange,maxRange;
    
		ranges = [].concat(opts.chartData.yAxisData.ranges[eachSeries.index]);
		minRange = ranges.pop();
		maxRange = ranges.shift();

    var data = eachSeries.data;
    var points = getDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config, process);
    calPoints.push(points);

    // 绘制柱状数据图
    if (eachSeries.type == 'column') {
      points = fixColumeData(points, eachSpacing, columnLength, columnIndex, config, opts);
      for(let i=0;i<points.length;i++){
      	let item=points[i];
        if (item !== null && i>leftNum && i<rightNum) {
          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, 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.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);
					let startPoint=0;
          if (eachSeries.style === 'curve') {
            for(let j=0;j<points.length;j++){
            	let item=points[j];
            	if(startPoint==0 && item.x > leftSpace){
            		context.moveTo(item.x, item.y);
            		startPoint=1;
            	}
              if (j > 0 && item.x > leftSpace && item.x < rightSpace) {
                var ctrlPoint = createCurveControlPoints(points, j - 1);
                context.bezierCurveTo(ctrlPoint.ctrA.x, ctrlPoint.ctrA.y, ctrlPoint.ctrB.x, ctrlPoint.ctrB.y, item.x, item.y);
              }
            };
          } else {
            for(let j=0;j<points.length;j++){
            	let item=points[j];
            	if(startPoint==0 && item.x > leftSpace){
            		context.moveTo(item.x, item.y);
            		startPoint=1;
            	}
              if (j > 0 && item.x > leftSpace && item.x < rightSpace) {
                context.lineTo(item.x, item.y);
              }
            };
          }
          context.lineTo(lastPoint.x, endY);
          context.lineTo(firstPoint.x, endY);
          context.lineTo(firstPoint.x, firstPoint.y);
        } else {
          let item = points[0];
          context.moveTo(item.x - eachSpacing / 2, item.y);
          context.lineTo(item.x + eachSpacing / 2, item.y);
          context.lineTo(item.x + eachSpacing / 2, endY);
          context.lineTo(item.x - eachSpacing / 2, endY);
          context.moveTo(item.x - eachSpacing / 2, item.y);
        }
        context.closePath();
        context.fill();
      }
    }

    // 绘制折线数据图
    if (eachSeries.type == 'line') {
      var splitPointList = splitPoints(points);
      splitPointList.forEach(function(points, index) {
				if (eachSeries.lineType == 'dash') {
					let dashLength = eachSeries.dashLength?eachSeries.dashLength:8;
					dashLength *= opts.pixelRatio;
				  context.setLineDash([dashLength, dashLength]);
				}
        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);
					let startPoint=0;
          if (eachSeries.style == 'curve') {
            for(let j=0;j<points.length;j++){
            	let item=points[j];
            	if(startPoint==0 && item.x > leftSpace){
            		context.moveTo(item.x, item.y);
            		startPoint=1;
            	}
              if (j > 0 && item.x > leftSpace && item.x < rightSpace) {
                var ctrlPoint = createCurveControlPoints(points, j - 1);
                context.bezierCurveTo(ctrlPoint.ctrA.x, ctrlPoint.ctrA.y, ctrlPoint.ctrB.x, ctrlPoint.ctrB.y,item.x,item.y);
              }
            }
          } else {
            for(let j=0;j<points.length;j++){
            	let item=points[j];
            	if(startPoint==0 && item.x > leftSpace){
            		context.moveTo(item.x, item.y);
            		startPoint=1;
            	}
              if (j > 0 && item.x > leftSpace && item.x < rightSpace) {
                context.lineTo(item.x, item.y);
              }
            }
          }
          context.moveTo(points[0].x, points[0].y);
        }
        context.stroke();
				context.setLineDash([]);
      });
    }

    // 绘制点数据图
    if (eachSeries.type == 'point') {
			eachSeries.addPoint = true;
    }

    if (eachSeries.addPoint == true && eachSeries.type !== 'column' ) {
      drawPointShape(points, eachSeries.color, eachSeries.pointShape, context, opts);
    }
  });
  if (opts.dataLabel !== false && process === 1) {
    var columnIndex = 0;
    series.forEach(function(eachSeries, seriesIndex) {
      let ranges,minRange,maxRange;
      
			ranges = [].concat(opts.chartData.yAxisData.ranges[eachSeries.index]);
			minRange = ranges.pop();
			maxRange = ranges.shift();
				
      var data = eachSeries.data;
      var points = getDataPoints(data, minRange, maxRange, xAxisPoints, eachSpacing, opts, config, process);
      if (eachSeries.type !== 'column') {
        drawPointText(points, eachSeries, config, context);
      } 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,
  }
}

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);
  }
	
	//绘制X轴刻度线
	if (opts.xAxis.calibration === true) {
		context.setStrokeStyle(opts.xAxis.gridColor || "#cccccc");
		context.setLineCap('butt');
		context.setLineWidth(1 * opts.pixelRatio);
	  xAxisPoints.forEach(function(item, index) {
	    if (index > 0) {
	      context.beginPath();
	      context.moveTo(item - eachSpacing / 2, startY);
	      context.lineTo(item - eachSpacing / 2, startY + 3 * opts.pixelRatio);
	      context.closePath();
	      context.stroke();
	    }
	  });
	}
	//绘制X轴网格
  if (opts.xAxis.disableGrid !== true) {
    context.setStrokeStyle(opts.xAxis.gridColor || "#cccccc");
    context.setLineCap('butt');
    context.setLineWidth(1 * opts.pixelRatio);
    if (opts.xAxis.gridType == 'dash') {
      context.setLineDash([opts.xAxis.dashLength, opts.xAxis.dashLength]);
    }
		opts.xAxis.gridEval = opts.xAxis.gridEval || 1;
		xAxisPoints.forEach(function(item, index) {
			if (index % opts.xAxis.gridEval == 0) {
				context.beginPath();
				context.moveTo(item, startY);
				context.lineTo(item, endY);
				context.stroke();
			}
		});
    context.setLineDash([]);
  }
  

  //绘制X轴文案
  if (opts.xAxis.disabled !== true) {
    // 对X轴列表做抽稀处理
    //默认全部显示X轴标签
    let maxXAxisListLength = categories.length;
    //如果设置了X轴单屏数量
    if (opts.xAxis.labelCount) {
      //如果设置X轴密度
      if (opts.xAxis.itemCount) {
        maxXAxisListLength = Math.ceil(categories.length / opts.xAxis.itemCount * opts.xAxis.labelCount);
      } else {
        maxXAxisListLength = opts.xAxis.labelCount;
      }
      maxXAxisListLength -= 1;
    }

    let ratio = Math.ceil(categories.length / maxXAxisListLength);

    let newCategories = [];
    let cgLength = categories.length;
    for (let i = 0; i < cgLength; i++) {
      if (i % ratio !== 0) {
        newCategories.push("");
      } else {
        newCategories.push(categories[i]);
      }
    }
    newCategories[cgLength - 1] = categories[cgLength - 1];

    var xAxisFontSize = opts.xAxis.fontSize || config.fontSize;
    if (config._xAxisTextAngle_ === 0) {
      newCategories.forEach(function(item, index) {
        var offset = - measureText(String(item), xAxisFontSize) / 2;
        if(boundaryGap == 'center'){
          offset+=eachSpacing / 2;
        }
        var scrollHeight=0;
        if(opts.xAxis.scrollShow){
          scrollHeight=6*opts.pixelRatio;
        }
        context.beginPath();
        context.setFontSize(xAxisFontSize);
        context.setFillStyle(opts.xAxis.fontColor || '#666666');
        context.fillText(String(item), xAxisPoints[index] + offset, startY + xAxisFontSize + (config.xAxisHeight - scrollHeight - 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(String(item),xAxisFontSize);
        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(String(item), xAxisPoints[index] + offset, startY + xAxisFontSize + 5);
        context.closePath();
        context.stroke();
        context.restore();
      });
    }
  }
  context.restore();
	
	//绘制X轴轴线
  if(opts.xAxis.axisLine){
    context.beginPath();
    context.setStrokeStyle(opts.xAxis.axisLineColor);
    context.setLineWidth(1 * opts.pixelRatio);
    context.moveTo(startX,opts.height-opts.area[2]);
    context.lineTo(endX,opts.height-opts.area[2]);
    context.stroke();
  }
}

function drawYAxisGrid(categories, opts, config, context) {
  if (opts.yAxis.disableGrid === true) {
    return;
  }
  let spacingValid = opts.height - opts.area[0] - opts.area[2];
  let eachSpacing = spacingValid / opts.yAxis.splitNumber;
  let startX = opts.area[3];
  let xAxisPoints = opts.chartData.xAxisData.xAxisPoints,
    xAxiseachSpacing = opts.chartData.xAxisData.eachSpacing;
  let TotalWidth = xAxiseachSpacing * (xAxisPoints.length - 1);
  let endX = startX + TotalWidth;

  let points = [];
  for (let i = 0; i < opts.yAxis.splitNumber + 1; i++) {
    points.push(opts.height - opts.area[2] - eachSpacing * i);
  }

  context.save();
  if (opts._scrollDistance_ && opts._scrollDistance_ !== 0) {
    context.translate(opts._scrollDistance_, 0);
  }

  if (opts.yAxis.gridType == 'dash') {
    context.setLineDash([opts.yAxis.dashLength, opts.yAxis.dashLength]);
  }
  context.setStrokeStyle(opts.yAxis.gridColor);
  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;
  }
  var spacingValid = opts.height - opts.area[0] - opts.area[2];
  var eachSpacing = spacingValid / opts.yAxis.splitNumber;
  var startX = opts.area[3];
  var endX = opts.width - opts.area[1];
  var endY = opts.height - opts.area[2];
  var fillEndY = endY + config.xAxisHeight;
  if (opts.xAxis.scrollShow) {
    fillEndY -= 3 * opts.pixelRatio;
  }
	if (opts.xAxis.rotateLabel){
		fillEndY = opts.height - opts.area[2]+3;
	}
  // 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 (let i = 0; i <= opts.yAxis.splitNumber; i++) {
    points.push(opts.area[0] + eachSpacing * i);
  }

  let tStartLeft=opts.area[3];
  let tStartRight=opts.width-opts.area[1];

  for (let i = 0; i < opts.yAxis.data.length; i++) {
    let yData = opts.yAxis.data[i];
    if(yData.disabled !== true){
      let rangesFormat = opts.chartData.yAxisData.rangesFormat[i];
      let yAxisFontSize = yData.fontSize || config.fontSize;
      let yAxisWidth = opts.chartData.yAxisData.yAxisWidth[i];
      //画Y轴刻度及文案
      rangesFormat.forEach(function(item, index) {
        var pos = points[index] ? points[index] : endY;
        context.beginPath();
        context.setFontSize(yAxisFontSize);
        context.setLineWidth(1*opts.pixelRatio);
        context.setStrokeStyle(yData.axisLineColor||'#cccccc');
        context.setFillStyle(yData.fontColor|| '#666666');
        if(yAxisWidth.position=='left'){
          context.fillText(String(item), tStartLeft - yAxisWidth.width , pos + yAxisFontSize / 2);
          //画刻度线
          if(yData.calibration==true){
            context.moveTo(tStartLeft,pos);
            context.lineTo(tStartLeft - 3*opts.pixelRatio,pos);
          }
        }else{
          context.fillText(String(item), tStartRight + 4*opts.pixelRatio, pos + yAxisFontSize / 2);
          //画刻度线
          if(yData.calibration==true){
            context.moveTo(tStartRight,pos);
            context.lineTo(tStartRight + 3*opts.pixelRatio,pos);
          }
        }
        context.closePath();
        context.stroke();
      });
      //画Y轴轴线
      if (yData.axisLine!==false) {
        context.beginPath();
        context.setStrokeStyle(yData.axisLineColor||'#cccccc');
        context.setLineWidth(1 * opts.pixelRatio);
        if(yAxisWidth.position=='left'){
          context.moveTo(tStartLeft,opts.height-opts.area[2]);
          context.lineTo(tStartLeft,opts.area[0]);
        }else{
          context.moveTo(tStartRight,opts.height-opts.area[2]);
          context.lineTo(tStartRight,opts.area[0]);
        }
        context.stroke();
      }
			
      //画Y轴标题
      if (opts.yAxis.showTitle) {
				
        let titleFontSize = yData.titleFontSize || config.fontSize;
        let title = yData.title;
        context.beginPath();
        context.setFontSize(titleFontSize);
        context.setFillStyle(yData.titleFontColor || '#666666');
        if(yAxisWidth.position=='left'){
          context.fillText(title, tStartLeft - measureText(title,titleFontSize)/2, opts.area[0]-10*opts.pixelRatio);
        }else{
          context.fillText(title,tStartRight - measureText(title,titleFontSize)/2, opts.area[0]-10*opts.pixelRatio);
        }
        context.closePath();
        context.stroke();
      }
      if(yAxisWidth.position=='left'){
        tStartLeft -=(yAxisWidth.width + opts.yAxis.padding);
      }else{
        tStartRight +=yAxisWidth.width+ opts.yAxis.padding;
      }
    }
  }
}

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,
		gap:2 * opts.pixelRatio
  }, opts.extra.arcbar);

  series = getArcbarDataPoints(series, arcbarOption, process);
	
  var centerPosition;
	if(arcbarOption.center){
		centerPosition=arcbarOption.center;
	}else{
		centerPosition= {
		  x: opts.width / 2,
		  y: opts.height / 2
		};
	}
	
  var radius;
	if(arcbarOption.radius){
		radius=arcbarOption.radius;
	}else{
		radius = Math.min(centerPosition.x, centerPosition.y);
		radius -= 5 * opts.pixelRatio;
		radius -= arcbarOption.width / 2;
	}
	
  for (let i = 0; i < series.length; i++) {
    let eachSeries = series[i];
		//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.width+arcbarOption.gap)*i, arcbarOption.startAngle * Math.PI, arcbarOption.endAngle * Math.PI, false);
		} else {
		  context.arc(centerPosition.x, centerPosition.y, radius-(arcbarOption.width+arcbarOption.gap)*i, 0, 2 * Math.PI, false);
		}
		context.stroke();
		//进度条
    context.setLineWidth(arcbarOption.width);
    context.setStrokeStyle(eachSeries.color);
    context.setLineCap('round');
    context.beginPath();
    context.arc(centerPosition.x, centerPosition.y, radius-(arcbarOption.width+arcbarOption.gap)*i, arcbarOption.startAngle * Math.PI