wx-charts 微信小程序图表插件的具体使用

<canvas canvas-id="lineCanvas" disable-scroll="true" class="canvas"></canvas>

git clone github.com/xiaolin3303/wx-charts.git
npm install rollup -g
npm install
rollup -c 或者 rollup --config rollup.config.prod.js

opts             Object
opts.canvasId        String required          微信小程序canvas-id
opts.width          Number required        canvas宽度，单位为px
opts.height         Number required        canvas高度，单位为px
opts.title          Object      (only for ring chart)
opts.title.name       String      标题内容
opts.title.fontSize     Number      标题字体大小（可选，单位为px）
opts.title.color       String      标题颜色（可选）
opts.subtitle        Object     (only for ring chart)
opts.subtitle.name      String      副标题内容
opts.subtitle.fontSize    Number     副标题字体大小（可选，单位为px）
opts.subtitle.color     String     副标题颜色（可选）
opts.animation        Boolean default true     是否动画展示
opts.legend         Boolen default true    是否显示图表下方各类别的标识
opts.type          String required 图表类型，可选值为pie, line, column, area……
opts.categories       Array required    (饼图、圆环图不需要) 数据类别分类
opts.dataLabel        Boolean default true   是否在图表中显示数据内容值
opts.dataPointShape     Boolean default true  是否在图表中显示数据点图形标识
opts.xAxis          Object    X轴配置
opts.xAxis.disableGrid    Boolean default false   不绘制X轴网格
opts.yAxis          Object  Y轴配置
opts.yAxis.format      Function      自定义Y轴文案显示
opts.yAxis.min        Number    Y轴起始值
opts.yAxis.max        Number      Y轴终止值
opts.yAxis.title       String    Y轴title
opts.yAxis.disabled     Boolean default false    不绘制Y轴
opts.series         Array required    数据列表

dataItem           Object
dataItem.data         Array required (饼图、圆环图为Number) 数据
dataItem.color        String 例如#7cb5ec 不传入则使用系统默认配色方案
dataItem.name         String 数据名称
dateItem.format        Function 自定义显示数据内容

new wxCharts({
  animation: true, //是否有动画
  canvasId: 'pieCanvas',
  type: 'pie',
  series: [{
    name: '成交量1',
    data: 15,
  }, {
    name: '成交量2',
    data: 35,
  }, {
    name: '成交量3',
    data: 78,
  }],
  width: windowWidth,
  height: 300,
  dataLabel: true,
 });
}

new wxCharts({
  animation: true,
  canvasId: 'ringCanvas',
  type: 'ring',
  extra: {
    ringWidth: 25,
    pie: {
      offsetAngle: -45
    }
  },
  title: {
    name: '70%',
    color: '#7cb5ec',
    fontSize: 25
  },
  subtitle: {
    name: '收益率',
    color: '#666666',
    fontSize: 15
  },
  series: [{
    name: '成交量1',
    data: 15,
    stroke: false
  }, {
    name: '成交量2',
    data: 35,
     stroke: false
  }, {
    name: '成交量3',
    data: 78,
    stroke: false
  }, {
    name: '成交量4',
    data: 63,
     stroke: false
  }],
  disablePieStroke: true,
  width: windowWidth,
  height: 200,
  dataLabel: false,
  legend: false,
  padding: 0
});

new wxCharts({
  canvasId: 'lineCanvas',
  type: 'line',
  categories: simulationData.categories,
  animation: true,
  background: '#f5f5f5',
  series: [{
    name: '成交量1',
    data: simulationData.data,
    format: function (val, name) {
      return val.toFixed(2) + '万';
    }
  }, {
    name: '成交量2',
    data: [2, 0, 0, 3, null, 4, 0, 0, 2, 0],
    format: function (val, name) {
      return val.toFixed(2) + '万';
    }
  }],
  xAxis: {
    disableGrid: true
  },
  yAxis: {
    title: '成交金额 (万元)',
    format: function (val) {
      return val.toFixed(2);
    },
    min: 0
  },
  width: windowWidth,
  height: 200,
  dataLabel: false,
  dataPointShape: true,
  extra: {
    lineStyle: 'curve'
  }
});

new wxCharts({
  canvasId: 'columnCanvas',
  type: 'column',
  animation: true,
  categories: chartData.main.categories,
  series: [{
    name: '成交量',
    data: chartData.main.data,
    format: function (val, name) {
      return val.toFixed(2) + '万';
    }
  }],
  yAxis: {
    format: function (val) {
      return val + '万';
    },
    title: 'hello',
    min: 0
  },
  xAxis: {
    disableGrid: false,
    type: 'calibration'
  },
  extra: {
    column: {
      width: 15
    }
  },
  width: windowWidth,
  height: 200,
});

new wxCharts({
  canvasId: 'areaCanvas',
  type: 'area',
  categories: ['1', '2', '3', '4', '5', '6'],
  animation: true,
  series: [{
    name: '成交量1',
    data: [32, 45, 0, 56, 33, 34],
    format: function (val) {
      return val.toFixed(2) + '万';
    }
  }, {
   name: '成交量2',
   data: [15, 20, 45, 37, 4, 80],
   format: function (val) {
    return val.toFixed(2) + '万';
   },
  }],
  yAxis: {
    title: '成交金额 (万元)',
    format: function (val) {
      return val.toFixed(2);
    },
    min: 0,
    fontColor: '#8085e9',
    gridColor: '#8085e9',
    titleFontColor: '#f7a35c'
  },
  xAxis: {
    fontColor: '#7cb5ec',
    gridColor: '#7cb5ec'
  },
  extra: {
    legendTextColor: '#cb2431'
  },
  width: windowWidth,
  height: 200
});

new wxCharts({
  canvasId: 'radarCanvas',
  type: 'radar',
  categories: ['1', '2', '3', '4', '5', '6'],
  series: [{
    name: '成交量1',
    data: [90, 110, 125, 95, 87, 122]
  }],
  width: windowWidth,
  height: 200,
  extra: {
    radar: {
      max: 150
    }
  }
});