smartmeter-app/echarts-for-weixin-master/pages/multiCharts/index.js

import * as echarts from '../../ec-canvas/echarts';

Page({
  onShareAppMessage: function (res) {
    return {
      title: 'ECharts 可以在微信小程序中使用啦！',
      path: '/pages/index/index',
      success: function () { },
      fail: function () { }
    }
  },
  data: {
    ecBar: {
      onInit: function (canvas, width, height, dpr) {
        const barChart = echarts.init(canvas, null, {
          width: width,
          height: height,
          devicePixelRatio: dpr // new
        });
        canvas.setChart(barChart);
        barChart.setOption(getBarOption());

        return barChart;
      }
    },

    ecScatter: {
      onInit: function (canvas, width, height, dpr) {
        const scatterChart = echarts.init(canvas, null, {
          width: width,
          height: height,
          devicePixelRatio: dpr // new
        });
        canvas.setChart(scatterChart);
        scatterChart.setOption(getScatterOption());

        return scatterChart;
      }
    }
  },

  onReady() {
  }
});


function getBarOption() {
  return {
    tooltip: {
      trigger: 'axis',
      axisPointer: {            // 坐标轴指示器，坐标轴触发有效
        type: 'shadow'        // 默认为直线，可选为：'line' | 'shadow'
      }
    },
    legend: {
      data: ['热度', '正面', '负面']
    },
    grid: {
      left: 20,
      right: 20,
      bottom: 15,
      top: 40,
      containLabel: true
    },
    xAxis: [
      {
        type: 'value',
        axisLine: {
          lineStyle: {
            color: '#999'
          }
        },
        axisLabel: {
          color: '#666'
        }
      }
    ],
    yAxis: [
      {
        type: 'category',
        axisTick: { show: false },
        data: ['汽车之家', '今日头条', '百度贴吧', '一点资讯', '微信', '微博', '知乎'],
        axisLine: {
          lineStyle: {
            color: '#999'
          }
        },
        axisLabel: {
          color: '#666'
        }
      }
    ],
    series: [
      {
        name: '热度',
        type: 'bar',
        label: {
          normal: {
            show: true,
            position: 'inside'
          }
        },
        data: [300, 270, 340, 344, 300, 320, 310]
      },
      {
        name: '正面',
        type: 'bar',
        stack: '总量',
        label: {
          normal: {
            show: true
          }
        },
        data: [120, 102, 141, 174, 190, 250, 220]
      },
      {
        name: '负面',
        type: 'bar',
        stack: '总量',
        label: {
          normal: {
            show: true,
            position: 'left'
          }
        },
        data: [-20, -32, -21, -34, -90, -130, -110]
      }
    ]
  };
}

function getScatterOption() {

  var data = [];
  var data2 = [];

  for (var i = 0; i < 10; i++) {
    data.push(
      [
        Math.round(Math.random() * 100),
        Math.round(Math.random() * 100),
        Math.round(Math.random() * 40)
      ]
    );
    data2.push(
      [
        Math.round(Math.random() * 100),
        Math.round(Math.random() * 100),
        Math.round(Math.random() * 100)
      ]
    );
  }

  var axisCommon = {
    axisLabel: {
      textStyle: {
        color: '#C8C8C8'
      }
    },
    axisTick: {
      lineStyle: {
        color: '#fff'
      }
    },
    axisLine: {
      lineStyle: {
        color: '#C8C8C8'
      }
    },
    splitLine: {
      lineStyle: {
        color: '#C8C8C8',
        type: 'solid'
      }
    }
  };

  return {
    backgroundColor: '#eee',
    xAxis: axisCommon,
    yAxis: axisCommon,
    legend: {
      data: ['aaaa', 'bbbb']
    },
    visualMap: {
      show: false,
      max: 100,
      inRange: {
        symbolSize: [20, 70]
      }
    },
    series: [{
      type: 'scatter',
      name: 'aaaa',
      data: data
    },
    {
      name: 'bbbb',
      type: 'scatter',
      data: data2
    }
    ],
    animationDelay: function (idx) {
      return idx * 50;
    },
    animationEasing: 'elasticOut'
  };
}