echarts词云气泡图

1.效果图

2.下载echarts词云扩展

npm i echarts  // echarts库
 
npm i echarts-wordcloud   // 词云复制

3.修改WordCloudView.js

import * as echarts from 'echarts'
 
echarts.extendChartView({
  type: 'wordCloud',
 
  render: function (seriesModel, ecModel, api) {
    const group = this.group
    group.removeAll()
 
    const data = seriesModel.getData()
 
    const gridSize = seriesModel.get('gridSize')
 
    seriesModel.layoutInstance.ondraw = function (text, size, dataIdx, drawn) {
      const itemModel = data.getItemModel(dataIdx)
      const textStyleModel = itemModel.getModel('textStyle')
      const { option: label } = itemModel.getModel('label')
      const labelStyle = itemModel.getModel('labelStyle')
 
      const textEl = new echarts.graphic.Text({
        style: echarts.helper.createTextStyle(textStyleModel),
        scaleX: 1 / drawn.info.mu,
        scaleY: 1 / drawn.info.mu,
        x: (drawn.gx + drawn.info.gw / 2) * gridSize,
        y: (drawn.gy + drawn.info.gh / 2) * gridSize,
        rotation: drawn.rot
      })
      textEl.setStyle({
        x: drawn.info.fillTextOffsetX,
        y: drawn.info.fillTextOffsetY + size * 0.5,
        text: text,
        verticalAlign: 'middle',
        fill: data.getItemVisual(dataIdx, 'style').fill,
        fontSize: size
      })
      const textLabel = new echarts.graphic.Text({
        style: echarts.helper.createTextStyle(labelStyle),
        scaleX: 1 / drawn.info.mu,
        scaleY: 1 / drawn.info.mu,
        x: (drawn.gx + drawn.info.gw / 2) * gridSize,
        y: (drawn.gy + drawn.info.gh / 2) * gridSize,
        rotation: drawn.rot
      })
      textLabel.setStyle({
        x: drawn.info.fillTextOffsetX + size * 0.45,
        y: drawn.info.fillTextOffsetY + size * 0.45,
        // text: label.length > 5 ? label.slice(0, 5) + '...' : label,
        text: label,
        align: 'center',
        verticalAlign: 'middle'
      })
 
      group.add(textEl)
      group.add(textLabel)
 
      data.setItemGraphicEl(dataIdx, textEl)
 
      textEl.ensureState('emphasis').style = echarts.helper.createTextStyle(
        itemModel.getModel(['emphasis', 'textStyle']),
        {
          state: 'emphasis'
        }
      )
      textEl.ensureState('blur').style = echarts.helper.createTextStyle(
        itemModel.getModel(['blur', 'textStyle']),
        {
          state: 'blur'
        }
      )
 
      echarts.helper.enableHoverEmphasis(
        textEl,
        itemModel.get(['emphasis', 'focus']),
        itemModel.get(['emphasis', 'blurScope'])
      )
 
      textEl.stateTransition = {
        duration: seriesModel.get('animation')
          ? seriesModel.get(['stateAnimation', 'duration'])
          : 0,
        easing: seriesModel.get(['stateAnimation', 'easing'])
      }
      // TODO
      textEl.__highDownDispatcher = true
    }
 
    this._model = seriesModel
  },
 
  remove: function () {
    this.group.removeAll()
 
    this._model.layoutInstance.dispose()
  },
 
  dispose: function () {
    this._model.layoutInstance.dispose()
  }
})复制

4.引用

import * as echarts from 'echarts';
import 'echarts-wordcloud';复制

5.核心代码

    var bubbleData = [
        { value: 100, label: "数据分析" },
        { value: 18, label: "安全" },
        { value: 43, label: "5G" },
        { value: 12, label: "算法" },
        { value: 50, label: "技术" },
        { value: 90, label: "AI" },
        { value: 21, label: "前端" },
        { value: 43, label: "政策" },
        { value: 12, label: "大数据" },
        { value: 50, label: "智慧林场" },
        { value: 98, label: "数据分析" },
        { value: 21, label: "安全" },
        { value: 43, label: "5G" },
        { value: 12, label: "算法" },
        { value: 50, label: "技术" },
        { value: 100, label: "AI" },
        { value: 20, label: "前端" },
        { value: 43, label: "政策" },
        { value: 12, label: "大数据" },
        { value: 50, label: "智慧林场" },
        { value: 95, label: "数据分析" },
        { value: 16, label: "安全" },
        { value: 43, label: "5G" },
        { value: 12, label: "算法" },
        { value: 50, label: "技术" },
        { value: 100, label: "AI" },
        { value: 15, label: "前端" },
        { value: 43, label: "政策" },
        { value: 12, label: "大数据" },
        { value: 50, label: "智慧林场" },
      ],
 
    let colorList = [//颜色
          { color: "#5285dc", borderColor: "#B9CEF1" },
          { color: "#4FAA6A", borderColor: "#B8DDC3" },
        ];
    let colorListLen = colorList.length;
 
 
    if (.bubbleData.length > 0) {
          //数据数组
          let countList = this.bubbleData;
          let max = 0;
          let min = this.bubbleData[0].value;
          this.bubbleData.forEach((e, i) => {
            if (e.value >= max) max = e.value;
            if (e.value <= min) min = e.value;
          });
          // 放大规则
          var number = Math.round(max * 0.05);
          countList.forEach((e, i) => {
            e.name = "⬤"; //背景的圆形图案
            let flag = Math.random();
            if (e.value <= min * 2) {
              e.labelStyle = {
                color: "#fff",
                fontSize: 0,
              };
              if (e.value <= min) {
                e.textStyle = {
                  color: colorList[0].color,
                };
              } else {
                e.textStyle = {
                  color: colorList[0].borderColor,
                };
              }
            } else {
              e.labelStyle = {
                color: "#fff",
                fontSize: ((e.value + number) / max) * 14,
              };
              e.textStyle = {
                color: colorList[Math.floor(flag * colorListLen)].color,
                textBorderColor:
                  colorList[Math.floor(flag * colorListLen)].borderColor,
                textBorderWidth: 5,
                textShadowBlur: 5,
                textShadowColor:
                  colorList[Math.floor(flag * colorListLen)].borderColor,
              };
            }
          });
        }
 
    const option = {
          tooltip: {
            show: true,
            formatter: (e) => {
              return `${e.data.label}：${e.data.value}`;
            },
          },
          series: [
            {
              type: "wordCloud",
              // 形状 circle 圆 cardioid  心 diamond 菱形
              // triangle-forward triangle 三角 star五角星
              shape: "circle",
              left: "center",
              width: "100%",
              height: "100%",
              top: 10,
              gridSize: 20,
              sizeRange: [10, 80],
              rotationRange: [0, 0],
              rotationStep: 90,
              drawOutOfBound: true,
              data: .bubbleData,
            },
          ],
        };
 
 
 
 复制