简介
Graphic是一个数据可视化语法和Flutter图表库。
网上可用资源很少，只有作者的几篇文章，并且没有特别详细的文档，使用的话还是需要一定的时间去调研，在此简单记录。
示例
以折线图为例（因为我只用到了折线图，但其他的图大差不差）
创建一个两个文件：linePage.dart 和数据文件data.dart
创建main.dart ，引入linePage.dart
javascript
// main.dart
import 'package:flutter/material.dart';
import './linePage.dart';
void main() => runApp(const MyApp());
class MyApp extends StatelessWidget {
const MyApp({super.key});
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Graphic Example',
debugShowCheckedModeBanner: false,
home: Scaffold(
appBar: AppBar(
title: const Text('Flutter Graphic Example'),
),
body: linePage(),
));
}
}
javascript
// linePage.dart
import 'package:flutter/gestures.dart';
import 'package:flutter/material.dart';
import 'package:graphic/graphic.dart';
import 'package:intl/intl.dart';
import './data.dart';
class linePage extends StatelessWidget {
linePage({super.key});
final GlobalKey<ScaffoldState> _scaffoldKey = GlobalKey<ScaffoldState>();
@override
Widget build(BuildContext context) {
return SingleChildScrollView(
child: Center(
child: Column(
children: <Widget>[
Container(
padding: const EdgeInsets.fromLTRB(20, 40, 20, 5),
child: const Text(
'Smooth Line and Area chart', //单线
style: TextStyle(fontSize: 20),
),
),
Container(
margin: const EdgeInsets.only(top: 10),
width: 350,
height: 300,
child: Chart(
// 数据源
data: invalidData,
// 变量配置
variables: {
'date': Variable(
accessor: (Map map) => map['date'] as String,
scale: OrdinalScale(
tickCount: 5, // x轴刻度数量
),
),
'points': Variable(
// 数据值
accessor: (Map map) => (map['points'] ?? double.nan) as num,
),
},
marks: [
// 线条与X轴之间区域填充
AreaMark(
shape: ShapeEncode(
value:
BasicAreaShape(smooth: true), // smooth: true 使线条变得平滑
),
color: ColorEncode(
value: Colors.pink.withAlpha(80),
),
),
// 线条
LineMark(
shape: ShapeEncode(
value: BasicLineShape(smooth: true),
),
// 粗细
size: SizeEncode(value: 1.5),
),
],
// 坐标轴配置
axes: [
Defaults.horizontalAxis,
Defaults.verticalAxis,
],
/** 选项配置
* 可以写多个，提供给tooltip单独配置selections：{'touchMove'}选择
* 或者marks中LineMark的color属性的updaters
*/
selections: {
// 'touchMove'名称随意起，一般与是功能性描述词
'touchMove': PointSelection(
on: { //on里面配置操作选项
GestureType.scaleUpdate, // 可垂直或水平移动准线
GestureType.tapDown, // 点击
GestureType.longPressMoveUpdate //长按拖动
},
dim: Dim.x,
)
},
// 触摸弹框提示
tooltip: TooltipGuide(
//未单独配置 selections，默认使用上面的selections中配置
// 跟随鼠标位置（感觉主要是看第二项是true，tooltip框才会跟随，false会随着鼠标移动乱动）
followPointer: [false, true],
align: Alignment.topLeft, // tooltip弹框对于点击位置的对齐方式
offset: const Offset(-20, -20), // 位置偏移量，结合align
),
// 十字准线
crosshair: CrosshairGuide(followPointer: [false, true]),
),
),
Container(
padding: const EdgeInsets.fromLTRB(20, 40, 20, 5),
child: const Text(
'Group interactions', //多线
style: TextStyle(fontSize: 20),
),
),
Container(
margin: const EdgeInsets.only(top: 10),
width: 350,
height: 300,
child: Chart(
data: invalidData1,
// 根据给定线条数据的name值相同的为同一条线
variables: {
'date': Variable(
accessor: (Map map) => map['date'] as String,
scale: OrdinalScale(tickCount: 5, inflate: true),
),
'points': Variable(
accessor: (Map map) => (map['points'] ?? double.nan) as num,
),
'name': Variable(
accessor: (Map map) => map['name'] as String,
),
},
coord: RectCoord(horizontalRange: [0.1, 0.99]),
marks: [
LineMark(
position:
Varset('date') * Varset('points') / Varset('name'),
shape: ShapeEncode(value: BasicLineShape(smooth: true)),
size: SizeEncode(value: 1.5),
color: ColorEncode(
variable: 'name',
values: Defaults.colors10,
// 改变线条颜色
// updaters: {
// 'groupMouse'是在selections中配置的
// 'groupMouse': {false: (color) => color.withAlpha(100)},
// // 'groupTouch': {false: (color) => color.withAlpha(100)},
// },
),
),
// 显示线条上的数据点
// PointMark(
// color: ColorEncode(
// variable: 'name',
// values: Defaults.colors10,
// updaters: {
// 'groupMouse': {false: (color) => color.withAlpha(100)},
// 'groupTouch': {false: (color) => color.withAlpha(100)},
// },
// ),
// ),
],
axes: [
Defaults.horizontalAxis,
Defaults.verticalAxis,
],
// // 提示框选项配置
selections: {
'666': PointSelection(
on: {GestureType.hover, GestureType.tap},
// 设备[mouse(鼠标),stylus(手写笔),invertedStylus,trackpad(触控板)，touch(触摸屏)，unknown]
// 参考资料：https://api.flutter.dev/flutter/dart-ui/PointerDeviceKind.html
devices: {
PointerDeviceKind.mouse // 鼠标 （该配置在鼠标设备时生效）
},
// 显示此处date相同的数据
variable: 'date',
),
'groupMouse': PointSelection(
// 触发的交互
// 参考资料：https://pub.dev/documentation/keyboard_dismisser/latest/keyboard_dismisser/GestureType.html
on: {
GestureType.hover, // 覆盖
},
// variable: 'name',
devices: {PointerDeviceKind.mouse},
),
'tooltipTouch': PointSelection(
on: {
GestureType.scaleUpdate,
GestureType.tapDown, //点击
GestureType.longPressMoveUpdate
},
// variable: 'name',
devices: {
PointerDeviceKind.touch， // 触摸屏（仅在触摸设备生效：神奇的是不包括iOS）
},
),
'tooltipTouchIos': PointSelection(
on: {
GestureType.scaleUpdate,
GestureType.tapDown,
GestureType.longPressMoveUpdate
},
// variable: 'name',
devices: {
// 未知设备（不明白为啥iOS被识别成了unknown，猜测可能与ios中的触摸事件有关）
PointerDeviceKind.unknown,
},
),
},
tooltip: TooltipGuide(
// 选择触发配置
selections: {'tooltipTouch', '666'},
followPointer: [false, true],
align: Alignment.topLeft,
// tooltip中显示的内容（按顺序显示）
// 与上方selections中定义的variable相排斥
variables: [
// 'date',
'name',
'points',
],
),
// 十字准线配置
crosshair: CrosshairGuide(
selections: {'tooltipTouch', '666'},
styles: [
PaintStyle(
strokeColor: const Color.fromARGB(255, 92, 68, 68)),
PaintStyle(
strokeColor: const Color.fromARGB(0, 158, 154, 154)),
],
followPointer: [false, true],
),
),
),
],
),
),
);
}
}数据文件
dart
// data.dart
const invalidData1 = [
{"date": "2016-01-04", "name": "线条1", "points": 126.12},
{"date": "2016-01-05", "name": "线条1", "points": 125.688},
{"date": "2016-01-06", "name": "线条1", "points": 119.704},
{"date": "2016-01-07", "name": "线条1", "points": 120.19},
{"date": "2016-01-08", "name": "线条1", "points": 121.157},
{"date": "2016-01-11", "name": "线条1", "points": 117},
{"date": "2016-01-12", "name": "线条1", "points": 120},
{"date": "2016-01-13", "name": "线条1", "points": 122},
{"date": "2016-01-14", "name": "线条1", "points": 117.76},
{"date": "2016-01-15", "name": "线条1", "points": 114.397},
{"date": "2016-01-18", "name": "线条1", "points": 116.373},
{"date": "2016-01-19", "name": "线条1", "points": 120.547},
{"date": "2016-01-20", "name": "线条1", "points": 113.733},
{"date": "2016-01-21", "name": "线条1", "points": 114.098},
{"date": "2016-01-22", "name": "线条1", "points": 123.833},
{"date": "2016-01-25", "name": "线条1", "points": 125},
{"date": "2016-01-26", "name": "线条1", "points": 124.866},
{"date": "2016-01-27", "name": "线条1", "points": 120.264},
{"date": "2016-01-28", "name": "线条1", "points": 122.296},
{"date": "2016-01-29", "name": "线条1", "points": 124.502},
{"date": "2016-02-01", "name": "线条1", "points": 127.936},
{"date": "2016-02-02", "name": "线条1", "points": null},
{"date": "2016-02-03", "name": "线条1", "points": 129.95},
{"date": "2016-02-04", "name": "线条1", "points": 129.275},
{"date": "2016-02-05", "name": "线条1", "points": 127.898},
{"date": "2016-02-08", "name": "线条1", "points": 134.9},
{"date": "2016-02-09", "name": "线条1", "points": 122.819},
{"date": "2016-02-10", "name": "线条1", "points": 120.108},
{"date": "2016-02-11", "name": "线条1", "points": 119.447},
{"date": "2016-02-12", "name": "线条1", "points": 117.8},
{"date": "2016-02-15", "name": "线条1", "points": null},
{"date": "2016-02-16", "name": "线条1", "points": 121.865},
{"date": "2016-02-17", "name": "线条1", "points": 126.3},
{"date": "2016-02-18", "name": "线条1", "points": 128.259},
{"date": "2016-02-19", "name": "线条1", "points": 125.724},
{"date": "2016-02-22", "name": "线条1", "points": 130},
{"date": "2016-02-23", "name": "线条1", "points": 129.948},
{"date": "2016-02-24", "name": "线条1", "points": 132.5},
{"date": "2016-02-25", "name": "线条1", "points": 128.08},
{"date": "2016-02-26", "name": "线条1", "points": 122},
{"date": "2016-02-29", "name": "线条1", "points": 122},
{"date": "2016-03-01", "name": "线条1", "points": 123.449},
{"date": "2016-03-02", "name": "线条1", "points": double.nan},
{"date": "2016-03-03", "name": "线条1", "points": 132},
{"date": "2016-03-04", "name": "线条1", "points": 135},
{"date": "2016-03-07", "name": "线条1", "points": 123.905},
{"date": "2016-03-08", "name": "线条1", "points": 125.155},
{"date": "2016-03-09", "name": "线条1", "points": 126},
{"date": "2016-03-10", "name": "线条1", "points": 126.778},
{"date": "2016-03-11", "name": "线条1", "points": 129.656},
{"date": "2016-03-14", "name": "线条1", "points": 127.64},
{"date": "2016-03-15", "name": "线条1", "points": 124.786},
{"date": "2016-03-16", "name": "线条1", "points": 124.469},
{"date": "2016-03-17", "name": "线条1", "points": 123.5},
{"date": "2016-03-18", "name": "线条1", "points": 124.061},
{"date": "2016-03-21", "name": "线条1", "points": 123.5},
{"date": "2016-03-22", "name": "线条1", "points": 129.002},
{"date": "2016-03-23", "name": "线条1", "points": 129},
{"date": "2016-03-24", "name": "线条1", "points": 131.31},
{"date": "2016-03-29", "name": "线条1", "points": 133},
{"date": "2016-03-30", "name": "线条1", "points": 129.298},
{"date": "2016-03-31", "name": "线条1", "points": 127.4},
{"date": "2016-04-01", "name": "线条1", "points": 122.376},
{"date": "2016-04-04", "name": "线条1", "points": 119.467},
{"date": "2016-04-05", "name": "线条1", "points": 120.695},
{"date": "2016-04-06", "name": "线条1", "points": 118.725},
{"date": "2016-04-07", "name": "线条1", "points": 127.539},
{"date": "2016-04-08", "name": "线条1", "points": 129.8},
{"date": "2016-04-11", "name": "线条1", "points": 129.5},
{"date": "2016-04-12", "name": "线条1", "points": 134.465},
{"date": "2016-04-13", "name": "线条1", "points": 133},
{"date": "2016-04-14", "name": "线条1", "points": 137.35},
{"date": "2016-04-15", "name": "线条1", "points": 137.2},
{"date": "2016-04-18", "name": "线条1", "points": 132.611},
{"date": "2016-04-19", "name": "线条1", "points": 135.479},
{"date": "2016-04-20", "name": "线条1", "points": 139.05},
{"date": "2016-04-21", "name": "线条1", "points": 142},
{"date": "2016-04-22", "name": "线条1", "points": 135.761},
{"date": "2016-04-25", "name": "线条1", "points": 136.174},
{"date": "2016-04-26", "name": "线条1", "points": 134.782},
{"date": "2016-04-27", "name": "线条1", "points": 128},
{"date": "2016-04-28", "name": "线条1", "points": 121.5},
{"date": "2016-04-29", "name": "线条1", "points": 120},
{"date": "2016-05-02", "name": "线条1", "points": 123.966},
{"date": "2016-05-03", "name": "线条1", "points": 122.538},
{"date": "2016-05-04", "name": "线条1", "points": 120},
{"date": "2016-05-05", "name": "线条1", "points": 120.21},
{"date": "2016-05-06", "name": "线条1", "points": 121.01},
{"date": "2016-05-09", "name": "线条1", "points": double.nan},
{"date": "2016-05-10", "name": "线条1", "points": 120.622},
{"date": "2016-05-11", "name": "线条1", "points": 123.85},
{"date": "2016-05-12", "name": "线条1", "points": 122.963},
{"date": "2016-05-13", "name": "线条1", "points": 126},
{"date": "2016-05-17", "name": "线条1", "points": 130},
{"date": "2016-05-18", "name": "线条1", "points": 128.845},
{"date": "2016-05-19", "name": "线条1", "points": 130.17},
{"date": "2016-05-20", "name": "线条1", "points": 129.741},
{"date": "2016-05-23", "name": "线条1", "points": 129.668},
{"date": "2016-05-24", "name": "线条1", "points": 126.886},
{"date": "2016-05-25", "name": "线条1", "points": 128.239},
{"date": "2016-05-26", "name": "线条1", "points": 127.239},
{"date": "2016-05-27", "name": "线条1", "points": 127.457},
{"date": "2016-05-30", "name": "线条1", "points": 127.37},
{"date": "2016-05-31", "name": "线条1", "points": 130.756},
{"date": "2016-06-01", "name": "线条1", "points": 133.232},
{"date": "2016-06-02", "name": "线条1", "points": 126.47},
{"date": "2016-06-03", "name": "线条1", "points": 126.385},
{"date": "2016-06-06", "name": "线条1", "points": 128.331},
{"date": "2016-06-07", "name": "线条1", "points": 130.914},
{"date": "2016-06-08", "name": "线条1", "points": 133},
{"date": "2016-06-09", "name": "线条1", "points": 133.041},
{"date": "2016-06-10", "name": "线条1", "points": 133.041},
{"date": "2016-06-13", "name": "线条1", "points": 129},
{"date": "2016-06-14", "name": "线条1", "points": 129.166},
{"date": "2016-06-15", "name": "线条1", "points": 124.687},
{"date": "2016-06-16", "name": "线条1", "points": 122.77},
{"date": "2016-06-17", "name": "线条1", "points": 126.461},
{"date": "2016-06-20", "name": "线条1", "points": 127},
{"date": "2016-06-21", "name": "线条1", "points": 125.594},
{"date": "2016-06-22", "name": "线条1", "points": 127.438},
{"date": "2016-06-23", "name": "线条1", "points": 124.44},
{"date": "2016-06-24", "name": "线条1", "points": 122.131},
{"date": "2016-06-27", "name": "线条1", "points": 120.53},
{"date": "2016-06-28", "name": "线条1", "points": 120.296},
{"date": "2016-06-29", "name": "线条1", "points": 125.877},
{"date": "2016-06-30", "name": "线条1", "points": 126.404},
{"date": "2016-01-04", "name": "线条2", "points": 130.914},
{"date": "2016-01-05", "name": "线条2", "points": 133},
{"date": "2016-01-06", "name": "线条2", "points": 159.704},
{"date": "2016-01-07", "name": "线条2", "points": 133.19},
{"date": "2016-01-08", "name": "线条2", "points": 202.157},
{"date": "2016-01-11", "name": "线条2", "points": 128},
{"date": "2016-01-12", "name": "线条2", "points": 138},
{"date": "2016-01-13", "name": "线条2", "points": 152},
{"date": "2016-01-14", "name": "线条2", "points": 157.76},
{"date": "2016-01-15", "name": "线条2", "points": 134.397},
{"date": "2016-01-18", "name": "线条2", "points": 170.373},
{"date": "2016-01-19", "name": "线条2", "points": 140.547},
{"date": "2016-01-20", "name": "线条2", "points": 133.733},
{"date": "2016-01-21", "name": "线条2", "points": 124.098},
{"date": "2016-01-22", "name": "线条2", "points": 113.833},
{"date": "2016-01-25", "name": "线条2", "points": 125},
{"date": "2016-01-26", "name": "线条2", "points": 154.866},
{"date": "2016-01-27", "name": "线条2", "points": 130.264},
{"date": "2016-01-28", "name": "线条2", "points": 142.296},
{"date": "2016-01-29", "name": "线条2", "points": 114.502},
{"date": "2016-02-01", "name": "线条2", "points": 137.936},
{"date": "2016-02-02", "name": "线条2", "points": null},
{"date": "2016-02-03", "name": "线条2", "points": 169.95},
{"date": "2016-02-04", "name": "线条2", "points": 119.275},
{"date": "2016-02-05", "name": "线条2", "points": 127.898},
{"date": "2016-02-08", "name": "线条2", "points": 134.9},
{"date": "2016-02-09", "name": "线条2", "points": 152.819},
{"date": "2016-02-10", "name": "线条2", "points": 100.108},
{"date": "2016-02-11", "name": "线条2", "points": 109.447},
{"date": "2016-02-12", "name": "线条2", "points": 127.8},
{"date": "2016-02-15", "name": "线条2", "points": null},
{"date": "2016-02-22", "name": "线条2", "points": 120},
{"date": "2016-02-23", "name": "线条2", "points": 149.948},
{"date": "2016-02-24", "name": "线条2", "points": 102.5},
{"date": "2016-03-03", "name": "线条2", "points": 142},
{"date": "2016-03-04", "name": "线条2", "points": 165},
{"date": "2016-03-07", "name": "线条2", "points": 173.905},
{"date": "2016-03-08", "name": "线条2", "points": 128.155},
{"date": "2016-02-25", "name": "线条2", "points": 118.08},
{"date": "2016-04-04", "name": "线条2", "points": 149.467},
{"date": "2016-04-05", "name": "线条2", "points": 130.695},
{"date": "2016-04-06", "name": "线条2", "points": 128.725},
{"date": "2016-04-07", "name": "线条2", "points": 137.539},
{"date": "2016-04-08", "name": "线条2", "points": 135.8},
{"date": "2016-04-11", "name": "线条2", "points": 138.5},
{"date": "2016-04-12", "name": "线条2", "points": 124.465},
{"date": "2016-04-13", "name": "线条2", "points": 143},
{"date": "2016-04-14", "name": "线条2", "points": 134.35},
{"date": "2016-04-15", "name": "线条2", "points": 127.2},
{"date": "2016-04-18", "name": "线条2", "points": 112.611},
{"date": "2016-04-19", "name": "线条2", "points": 135.479},
{"date": "2016-02-26", "name": "线条2", "points": 142},
{"date": "2016-02-29", "name": "线条2", "points": 132},
{"date": "2016-03-01", "name": "线条2", "points": 113.449},
{"date": "2016-03-02", "name": "线条2", "points": double.nan},
{"date": "2016-02-16", "name": "线条2", "points": 131.865},
{"date": "2016-02-17", "name": "线条2", "points": 156.3},
{"date": "2016-02-18", "name": "线条2", "points": 148.259},
{"date": "2016-02-19", "name": "线条2", "points": 135.724},
{"date": "2016-03-09", "name": "线条2", "points": 116},
{"date": "2016-03-10", "name": "线条2", "points": 176.778},
{"date": "2016-03-11", "name": "线条2", "points": 139.656},
{"date": "2016-03-14", "name": "线条2", "points": 157.64},
{"date": "2016-03-15", "name": "线条2", "points": double.nan},
{"date": "2016-03-16", "name": "线条2", "points": 144.469},
{"date": "2016-03-17", "name": "线条2", "points": 133.5},
{"date": "2016-03-18", "name": "线条2", "points": 184.061},
{"date": "2016-03-21", "name": "线条2", "points": 163.5},
{"date": "2016-03-22", "name": "线条2", "points": 159.002},
{"date": "2016-03-23", "name": "线条2", "points": 149},
{"date": "2016-03-24", "name": "线条2", "points": 111.31},
{"date": "2016-03-29", "name": "线条2", "points": 123},
{"date": "2016-03-30", "name": "线条2", "points": 139.298},
{"date": "2016-03-31", "name": "线条2", "points": 147.4},
{"date": "2016-04-01", "name": "线条2", "points": 132.376},
{"date": "2016-04-20", "name": "线条2", "points": 149.05},
{"date": "2016-04-21", "name": "线条2", "points": 162},
{"date": "2016-04-22", "name": "线条2", "points": 155.761},
{"date": "2016-04-25", "name": "线条2", "points": 126.174},
{"date": "2016-04-26", "name": "线条2", "points": 134.782},
{"date": "2016-04-27", "name": "线条2", "points": 118},
{"date": "2016-04-28", "name": "线条2", "points": 141.5},
{"date": "2016-05-31", "name": "线条2", "points": 130.756},
{"date": "2016-06-01", "name": "线条2", "points": 143.232},
{"date": "2016-06-02", "name": "线条2", "points": 176.47},
{"date": "2016-06-03", "name": "线条2", "points": 156.385},
{"date": "2016-06-06", "name": "线条2", "points": 168.331},
{"date": "2016-06-07", "name": "线条2", "points": 130.914},
{"date": "2016-06-08", "name": "线条2", "points": 123},
{"date": "2016-06-09", "name": "线条2", "points": 133.041},
{"date": "2016-06-10", "name": "线条2", "points": 133.041},
{"date": "2016-06-13", "name": "线条2", "points": 129},
{"date": "2016-06-14", "name": "线条2", "points": null},
{"date": "2016-06-15", "name": "线条2", "points": 114.687},
{"date": "2016-06-16", "name": "线条2", "points": 122.77},
{"date": "2016-06-17", "name": "线条2", "points": 146.461},
{"date": "2016-06-20", "name": "线条2", "points": 127},
{"date": "2016-06-21", "name": "线条2", "points": 155.594},
{"date": "2016-06-22", "name": "线条2", "points": 127.438},
{"date": "2016-06-23", "name": "线条2", "points": 134.44},
{"date": "2016-06-24", "name": "线条2", "points": 112.131},
{"date": "2016-06-27", "name": "线条2", "points": 100.53},
{"date": "2016-06-28", "name": "线条2", "points": 150.296},
{"date": "2016-06-29", "name": "线条2", "points": 135.877},
{"date": "2016-06-30", "name": "线条2", "points": 126.404},
{"date": "2016-04-29", "name": "线条2", "points": 130},
{"date": "2016-05-02", "name": "线条2", "points": 123.966},
{"date": "2016-05-03", "name": "线条2", "points": 122.538},
{"date": "2016-05-04", "name": "线条2", "points": 130},
{"date": "2016-05-05", "name": "线条2", "points": 120.21},
{"date": "2016-05-06", "name": "线条2", "points": 131.01},
{"date": "2016-05-09", "name": "线条2", "points": double.nan},
{"date": "2016-05-10", "name": "线条2", "points": 120.622},
{"date": "2016-05-11", "name": "线条2", "points": 153.85},
{"date": "2016-05-12", "name": "线条2", "points": 162.963},
{"date": "2016-05-13", "name": "线条2", "points": 146},
{"date": "2016-05-17", "name": "线条2", "points": 130},
{"date": "2016-05-18", "name": "线条2", "points": 138.845},
{"date": "2016-05-19", "name": "线条2", "points": 120.17},
{"date": "2016-05-20", "name": "线条2", "points": 149.741},
{"date": "2016-05-23", "name": "线条2", "points": 119.668},
{"date": "2016-05-24", "name": "线条2", "points": 136.886},
{"date": "2016-05-25", "name": "线条2", "points": 108.239},
{"date": "2016-05-26", "name": "线条2", "points": 147.239},
{"date": "2016-05-27", "name": "线条2", "points": 127.457},
{"date": "2016-05-30", "name": "线条2", "points": 137.37},
];
const invalidData = [
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{"date": "2016-01-05", "points": 125.688},
{"date": "2016-01-06", "points": 119.704},
{"date": "2016-01-07", "points": 120.19},
{"date": "2016-01-08", "points": 121.157},
{"date": "2016-01-11", "points": 117},
{"date": "2016-01-12", "points": 120},
{"date": "2016-01-13", "points": 122},
{"date": "2016-01-14", "points": 117.76},
{"date": "2016-01-15", "points": 114.397},
{"date": "2016-01-18", "points": 116.373},
{"date": "2016-01-19", "points": 120.547},
{"date": "2016-01-20", "points": 113.733},
{"date": "2016-01-21", "points": 114.098},
{"date": "2016-01-22", "points": 123.833},
{"date": "2016-01-25", "points": 125},
{"date": "2016-01-26", "points": 124.866},
{"date": "2016-01-27", "points": 120.264},
{"date": "2016-01-28", "points": 122.296},
{"date": "2016-01-29", "points": 124.502},
{"date": "2016-02-01", "points": 127.936},
{"date": "2016-02-02", "points": null},
{"date": "2016-02-03", "points": 129.95},
{"date": "2016-02-04", "points": 129.275},
{"date": "2016-02-05", "points": 127.898},
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{"date": "2016-02-12", "points": 117.8},
{"date": "2016-02-15", "points": null},
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{"date": "2016-02-17", "points": 126.3},
{"date": "2016-02-18", "points": 128.259},
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{"date": "2016-02-22", "points": 130},
{"date": "2016-02-23", "points": 129.948},
{"date": "2016-02-24", "points": 132.5},
{"date": "2016-02-25", "points": 128.08},
{"date": "2016-02-26", "points": 122},
{"date": "2016-02-29", "points": 122},
{"date": "2016-03-01", "points": 123.449},
{"date": "2016-03-02", "points": double.nan},
{"date": "2016-03-03", "points": 132},
{"date": "2016-03-04", "points": 135},
{"date": "2016-03-07", "points": 123.905},
{"date": "2016-03-08", "points": 125.155},
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{"date": "2016-03-10", "points": 126.778},
{"date": "2016-03-11", "points": 129.656},
{"date": "2016-03-14", "points": 127.64},
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{"date": "2016-03-16", "points": 124.469},
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{"date": "2016-03-21", "points": 123.5},
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{"date": "2016-03-31", "points": 127.4},
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{"date": "2016-04-15", "points": 137.2},
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{"date": "2016-04-19", "points": 135.479},
{"date": "2016-04-20", "points": 139.05},
{"date": "2016-04-21", "points": 142},
{"date": "2016-04-22", "points": 135.761},
{"date": "2016-04-25", "points": 136.174},
{"date": "2016-04-26", "points": 134.782},
{"date": "2016-04-27", "points": 128},
{"date": "2016-04-28", "points": 121.5},
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{"date": "2016-05-02", "points": 123.966},
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{"date": "2016-05-05", "points": 120.21},
{"date": "2016-05-06", "points": 121.01},
{"date": "2016-05-09", "points": double.nan},
{"date": "2016-05-10", "points": 120.622},
{"date": "2016-05-11", "points": 123.85},
{"date": "2016-05-12", "points": 122.963},
{"date": "2016-05-13", "points": 126},
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{"date": "2016-05-18", "points": 128.845},
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{"date": "2016-05-30", "points": 127.37},
{"date": "2016-05-31", "points": 130.756},
{"date": "2016-06-01", "points": 133.232},
{"date": "2016-06-02", "points": 126.47},
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{"date": "2016-06-28", "points": 120.296},
{"date": "2016-06-29", "points": 125.877},
{"date": "2016-06-30", "points": 126.404},
];效果
