• echarts画热力图


    安装echarts

    npm install echarts -S

    封装全局组件:

    @/utils/myCharts.js
    import * as echarts from 'echarts';
    // 图表统一放在此处
    const install = function (Vue) {
      Object.defineProperties(Vue.prototype, {
        $chart: {
          get() {
            return {
              // 热力图
              hotPicture: function (id, data) {
                console.log(data,"data")
                let realData = data.data.map(item => {
                  return [item[0],item[1],item[2].sum || "-"]
                })
                console.log(realData,"realData");
                this.chart = echarts.init(document.getElementById(id));
                this.chart.clear();
                const optionData = {
                  title: {
                      text: '热力图',
                      left: 'center',
                      textStyle: {
                          fontWeight: 'normal',
                      },
                  },
                  dataZoom: [
                    {
                      show: true,
                      realtime: true,
                      start: 0,
                      marginTop: 10,
                      end: 100,
                      // bottom: -10
                    },
                  ],
                  tooltip: {//提示
                    position: 'bottom',
                    formatter:(params) => {
                      var arr = data.data.filter(item => {
                        return item[0] == params.value[0];
                      });
                      var sourseItem = arr.find(item => {
                        return params.value[1] == item[1];
                      })
                      console.log(sourseItem,"sourseItem");
                      var htmlStr = '<div style="height: auto;max-height: 240px;overflow-y: auto;font-size:12px;">';
                      for (var i = 0; i < sourseItem[2].behavior.length; i++) {
                        var option  = sourseItem[2].behavior[i];
                        console.log(option,"option");
                        htmlStr += '<div style="color: #666;">' + '<span style="font-weight:600;">' + option.name + '</span>' + ':' + '<span>'  + option.num + '</span>' + '</div>';
                      }
                      htmlStr += '</div>'
                      return htmlStr;
                    }
                  },
                  grid: {
                      height: '50%',
                      top: '10%'
                  },
                  xAxis: {
                      type: 'category',
                      data: data.times,
                      splitArea: {
                          show: true
                      }
                  },
                  yAxis: {
                      type: 'category',
                      data: data.names,
                      splitArea: {
                          show: true
                      }
                  },
                  visualMap: {
                    min: 0,
                    max: 10,//多少次达到颜色最重
                    calculable: true,
                    orient: 'horizontal',
                    left: 'center',
                    bottom: '15%',
                    type: 'continuous',//默认  还有piecewise
                    // pieces: [{//piecewise配置对应的颜色区间
                    //   gt: 0,
                    //   lte: 10,
                    //   color: '#008143'
                    // }, {
                    //     gt: 10,
                    //     lte: 20,
                    //     color: '#8D0020'
                    // },]
                  },
                  series: [{
                      name: '提示标题',
                      type: 'heatmap',//热力图类型
                      data: realData,//数据
                      label: {
                          show: true
                      },
                      emphasis: {
                          itemStyle: {
                              shadowBlur: 10,//阴影的模糊度
                              shadowColor: 'rgba(0, 0, 0, 0.5)',//鼠标晃过某一项时的阴影样式
                          }
                      }
                  }]
                };
                this.chart.setOption(optionData);
                setTimeout(() =>{
                  window.onresize = ()=>{
                    this.chart.resize();
                  }
                },200)
              },
            }//return
          }
        }
      })
    }
    
    export default {
      install
    }

    main.js引入

    import myCharts from "@/utils/myCharts.js";
    Vue.use(myCharts);//封装的echarts组件

    调用:

    <template>
      <div>
        <div id="hotPicture" style=" 100%;height:500px;"></div>
      </div>
    </template>
    
    <script>
      export default {
        data(){
          return {
            data:{
              times:['03-01', '03-02', '03-03', '03-04', '03-05', '03-06', '03-07',
                '03-08', '03-09', '03-10',
              ],//X轴数据-日期
              names:['姓名1', '姓名2', '姓名3','姓名4', '姓名5', '姓名6', '姓名7'],//y轴数据-姓名
              data:[
                [0,1,{sum:5,behavior:[{name:"搜索",num:1},{name:"回复",num:4}]}],// 3/1,姓名2,5次
                [1,2,{sum:9,behavior:[{name:"搜索",num:1},{name:"回复",num:8}]}],// 3/2,姓名3,,9次
                [9,6,{sum:2,behavior:[{name:"搜索",num:1},{name:"回复",num:1}]}],// 3/10,姓名7,2次
                [8,5,{sum:20,behavior:[{name:"搜索",num:10},{name:"回复",num:10}]}],// 3/9,姓名6,20次
              ],
            }
          }
        },
        mounted(){
          this.$chart.hotPicture("hotPicture",this.data)
        }
      }
    </script>

    效果:

     新配置:

    //热力图
              hotPicture: function (id, data) {
                console.log(data,"data")
                let realData = data.data.map(item => {
                  return [item[0],item[1],item[2].sum || "-"]
                });
                this.chart = echarts.init(document.getElementById(id));
                this.chart.clear();
                const optionData = {
                  // title: {
                  //     text: '热力图',
                  //     left: 'center',
                  //     textStyle: {
                  //         fontWeight: 'normal',
                  //     },
                  // },
                  dataZoom: [
                    {
                      show: true,
                      realtime: true,
                      start: 0,
                      marginTop: 10,
                      end: 100,
                      height:0,//缩放区域高度
                      moveHandleSize:20,//滑块宽度
                      handleSize:40,//缩放手柄宽度
                    },
                    {
                      type: 'slider',
                      yAxisIndex: 0,
                      filterMode: 'none',
                      zoomLock:false,//显示值不能扩大,是固定值(20)
                      startValue: 0, // 从头开始。
                      endValue:19, // 一次性展示20个
                      right:40,
                      top:60,
                      0,//缩放区域宽度
                      moveHandleSize:20,//滑块宽度
                      handleSize:40,//缩放手柄宽度
                    },
                  ],
                  tooltip: {//提示
                    position: 'bottom',
                    backgroundColor: 'rgba(0,0,0,.5)',
                    formatter:(params) => {
                      var arr = data.data.filter(item => {
                        return item[0] == params.value[0];
                      });
                      var sourseItem = arr.find(item => {
                        return params.value[1] == item[1];
                      })
                      // console.log(sourseItem,"sourseItem");
                      var htmlStr = '<div style="height: auto;max-height: 240px;overflow-y: auto;font-size:12px;">';
                      htmlStr += '<div style="color: #fff;">' + '<span style="font-weight:600;">' + vue.$t('operationFrequency') + '</span>' + ':' + '<span>'  + sourseItem[2].sum + '</span>' + '</div>';
                      for (var i = 0; i < sourseItem[2].behavior.length; i++) {
                        var option  = sourseItem[2].behavior[i];
                        htmlStr += '<div style="color: #fff;">' + '<span style="font-weight:600;">' + vue.$t(option.name) + '</span>' + ':' + '<span>'  + option.num + '</span>' + '</div>';
                      }
                      htmlStr += '</div>'
                      return htmlStr;
                    }
                  },
                  grid: {
                      height: '470',
                      top: '60',
                      bottom:'70',
                      right:'60'
                  },
                  xAxis: {
                      type: 'category',
                      data: data.times,
                      splitArea: {
                          show: true
                      }
                  },
                  yAxis: {
                      type: 'category',
                      data: data.names.map(item => {return item.replace(/?d+$/,"")}),
                      splitArea: {
                          show: true
                      }
                  },
                  visualMap: {
                    min: 0,
                    max: 10,//多少次达到颜色最重
                    calculable: true,
                    orient: 'horizontal',
                    right: '60',
                    top: 'top',
                    type: 'continuous',//默认  还有piecewise
                    // pieces: [{//piecewise配置对应的颜色区间
                    //   gt: 0,
                    //   lte: 10,
                    //   color: '#008143'
                    // }, {
                    //     gt: 10,
                    //     lte: 20,
                    //     color: '#8D0020'
                    // },]
                    inRange: {
                      color: ['#EBF1FF', '#C2D4FF', '#99B4FF','#7092FF','#486EFF','#324ED9'],
                      // symbolSize: [30, 100]
                    },
                  },
                  series: [{
                      name: '提示标题',
                      type: 'heatmap',//热力图类型
                      data: realData,//数据
                      label: {
                          show: true,
                      },
                      emphasis: {
                          itemStyle: {
                              shadowBlur: 10,//阴影的模糊度
                              shadowColor: 'rgba(0, 0, 0, 0.5)',//鼠标晃过某一项时的阴影样式
                          }
                      }
                  }]
                };
                this.chart.setOption(optionData);
                // this.chart.resize({height:(data.names.length * 20) + 316});
                this.chart.resize();
                setTimeout(() =>{
                  window.onresize = ()=>{
                    // this.chart.resize({height:(data.names.length * 20) + 316});
                    this.chart.resize();
                  }
                },200)
              },

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  • 原文地址:https://www.cnblogs.com/fqh123/p/14517587.html
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