vue中使用3d饼图

效果图：

使用步骤

1.引入库

安装echarts

在package.json文件中添加

 "dependencies": {
 	"echarts": "^5.1.2"
 	"echarts-gl": "^1.1.0",
 	//  "echarts-gl": "^2.0.8"
 },

如图

main.js中引入

import Vue from 'vue'
import * as echarts from 'echarts'
import 'echarts-gl' // 3d图表库
 
Vue.prototype.$echarts = echarts

2.使用

完整代码如下（示例）：

HTML代码

<template>
  <div class="main">
    <div class="container">
      <div ref="myChart" class="myChart"></div>
      <div class="bottom-img"></div>
    </div>
  </div>
</template>

js脚本代码

<script>
import "echarts-gl";
export default {
  data() {
    return {
      myChart: null,
      seriesData: [],
    };
  },
  mounted() {
    this.getList();
    window.addEventListener("resize", () => {
      this.reloadChart();
    });
  },
  methods: {
    getList() {
      this.seriesData = [
        {
          name: "canshu1",
          value: 58,
        },
        {
          name: "canshu2",
          value: 3,
        },
        {
          name: "canshu3",
          value: 15,
        },
        {
          name: "canshu4",
          value: 30,
        },
      ];
      this.initChart(this.seriesData);
    },
    initChart(data) {
      if (data.length == 0) return;
      this.myChart = this.$echarts.init(this.$refs.myChart);
      let colors = [
        "RGBA(36, 154, 163, 1)",
        "RGBA(245, 169, 64, 1)",
        "RGBA(240, 136, 64, 1)",
        "RGBA(123, 198, 239, 1)",
        "RGBA(245, 169, 64, 1)",
        "RGBA(240, 136, 64, 1)",
        "RGBA(123, 198, 239, 1)",
      ];
      const getPie3D = (pieData, internalDiameterRatio) => {
        //internalDiameterRatio:透明的空心占比
        let series = [];
        let sumValue = 0;
        let startValue = 0;
        let endValue = 0;
        let k = 1 - internalDiameterRatio;
        pieData.sort((a, b) => {
          return b.value - a.value;
        });
        // 为每一个饼图数据，生成一个 series-surface 配置
        for (let i = 0; i < pieData.length; i++) {
          sumValue += pieData[i].value;
          let seriesItem = {
            name:
              typeof pieData[i].name === "undefined"
                ? `series${i}`
                : pieData[i].name,
            type: "surface",
            parametric: true,
            wireframe: {
              show: false,
            },
            pieData: pieData[i],
            pieStatus: {
              selected: false,
              hovered: false,
              k: k,
            },
            radius: "20%",
            center: ["10%", "20%"],
          };
          if (typeof colors[i] != "undefined") {
            let itemStyle = {};
            typeof colors[i] != "undefined"
              ? (itemStyle.color = colors[i])
              : null;
            seriesItem.itemStyle = itemStyle;
          }

          series.push(seriesItem);
        }
        // 使用上一次遍历时，计算出的数据和 sumValue，调用 getParametricEquation 函数，
        // 向每个 series-surface 传入不同的参数方程 series-surface.parametricEquation，也就是实现每一个扇形。

        for (let i = 0; i < series.length; i++) {
          endValue = startValue + series[i].pieData.value;
          series[i].pieData.startRatio = startValue / sumValue;
          series[i].pieData.endRatio = endValue / sumValue;
          series[i].parametricEquation = getParametricEquation(
            series[i].pieData.startRatio,
            series[i].pieData.endRatio,
            false,
            false,
            k,
            series[i].pieData.value
          );
          startValue = endValue;
        }
        // let boxHeight = getHeight3D(series, 15); //通过传参设定3d饼/环的高度，26代表26px
        // 准备待返回的配置项，把准备好的 legendData、series 传入。
        let option = {
          labelLine: {
            show: true,
            lineStyle: {
              color: "#7BC0CB",
            },
          },
          legend: {
            orient: "vertical",
            top: "center",
            right: this.fontSize(0.1),
            data: data,
            icon: "circle",
            itemWidth: this.fontSize(0.13), //矩形宽度
            itemHeight: this.fontSize(0.13), //矩形高度
            formatter: (res) => {
              let str = "";
              series.forEach((ele) => {
                if (res == ele.name) {
                  let bfb = (
                    (ele.pieData.endRatio - ele.pieData.startRatio) *
                    100
                  ).toFixed(2);
                  if (bfb == "NaN") {
                    str =
                      "{e|" +
                      ele.pieData.name +
                      "}" +
                      "{a|" +
                      ele.pieData.value +
                      "  " +
                      0 +
                      "%}";
                  } else {
                    str =
                      "{e|" +
                      ele.pieData.name +
                      "} " +
                      "{a| " +
                      ele.pieData.value +
                      "}{b|  " +
                      bfb +
                      "%}";
                  }
                }
              });
              return str;
            },
            textStyle: {
              color: "#fff",
              fontSize: this.fontSize(0.35),
              padding: [5, 0],
              rich: {
                a: {
                  fontSize: this.fontSize(0.35),
                  color: "#00DCF6",
                  // width: this.fontSize(0.5),
                },
                b: {
                  fontSize: this.fontSize(0.35),
                  color: "#00DCF6",
                  // width: this.fontSize(0.85),
                },
                e: {
                  fontSize: this.fontSize(0.35),
                  // width: this.fontSize(1.0),
                },
              },
            },
          },
          label: {
            show: false,
            formatter: "",
          },
          tooltip: {
            show: true,
            formatter: (params) => {
              if (
                params.seriesName !== "mouseoutSeries" &&
                params.seriesName !== "pie2d"
              ) {
                let bfb = (
                  (option.series[params.seriesIndex].pieData.endRatio -
                    option.series[params.seriesIndex].pieData.startRatio) *
                  100
                ).toFixed(2);
                return (
                  `${params.seriesName}<br/>` +
                  `<span style="display:inline-block;margin-right:5px;border-radius:10px;width:10px;height:10px;background-color:${params.color};"></span>` +
                  `${bfb}%`
                );
              }
            },
          },
          xAxis3D: {
            min: -1,
            max: 1,
          },
          yAxis3D: {
            min: -1,
            max: 1,
          },
          zAxis3D: {
            min: -1,
            max: 1,
          },
          grid3D: {
            show: false,
            boxHeight: 10, //圆环的高度
            left: -this.fontSize(2.2),
            top: -this.fontSize(0.1), //3d饼图的位置
            viewControl: {
              //3d效果可以放大、旋转等，请自己去查看官方配置
              alpha: 25, //角度
              distance: 200, //调整视角到主体的距离，类似调整zoom
              rotateSensitivity: 0, //设置为0无法旋转
              zoomSensitivity: 0, //设置为0无法缩放
              panSensitivity: 0, //设置为0无法平移
              autoRotate: false, //自动旋转
            },
          },
          series: series,
        };
        return option;
      };

      //获取3d丙图的最高扇区的高度
      // const getHeight3D = (series, height) => {
      //   series.sort((a, b) => {
      //     return b.pieData.value - a.pieData.value;
      //   });
      //   return (height * this.fontSize(1)) / series[0].pieData.value;
      // };

      // 生成扇形的曲面参数方程，用于 series-surface.parametricEquation
      const getParametricEquation = (
        startRatio,
        endRatio,
        isSelected,
        isHovered,
        k,
        h
      ) => {
        // 计算
        let midRatio = (startRatio + endRatio) / 2;
        let startRadian = startRatio * Math.PI * 2;
        let endRadian = endRatio * Math.PI * 2;
        let midRadian = midRatio * Math.PI * 2;
        // 如果只有一个扇形，则不实现选中效果。
        if (startRatio === 0 && endRatio === 1) {
          isSelected = false;
        }
        // 通过扇形内径/外径的值，换算出辅助参数 k（默认值 1/3）
        k = typeof k !== "undefined" ? k : 1 / 3;
        // 计算选中效果分别在 x 轴、y 轴方向上的位移（未选中，则位移均为 0）
        let offsetX = isSelected ? Math.cos(midRadian) * 0.1 : 0;
        let offsetY = isSelected ? Math.sin(midRadian) * 0.1 : 0;
        // 计算高亮效果的放大比例（未高亮，则比例为 1）
        let hoverRate = isHovered ? 1.05 : 1;
        // 返回曲面参数方程
        return {
          u: {
            min: -Math.PI,
            max: Math.PI * 3,
            step: Math.PI / 32,
          },
          v: {
            min: 0,
            max: Math.PI * 2,
            step: Math.PI / 20,
          },
          x: function(u, v) {
            if (u < startRadian) {
              return (
                offsetX +
                Math.cos(startRadian) * (1 + Math.cos(v) * k) * hoverRate
              );
            }
            if (u > endRadian) {
              return (
                offsetX +
                Math.cos(endRadian) * (1 + Math.cos(v) * k) * hoverRate
              );
            }
            return offsetX + Math.cos(u) * (1 + Math.cos(v) * k) * hoverRate;
          },
          y: function(u, v) {
            if (u < startRadian) {
              return (
                offsetY +
                Math.sin(startRadian) * (1 + Math.cos(v) * k) * hoverRate
              );
            }
            if (u > endRadian) {
              return (
                offsetY +
                Math.sin(endRadian) * (1 + Math.cos(v) * k) * hoverRate
              );
            }
            return offsetY + Math.sin(u) * (1 + Math.cos(v) * k) * hoverRate;
          },
          z: function(u, v) {
            if (u < -Math.PI * 0.5) {
              return Math.sin(u);
            }
            if (u > Math.PI * 2.5) {
              return Math.sin(u) * h * 0.1;
            }
            return Math.sin(v) > 0 ? 1 * h * 0.1 : -1;
          },
        };
      };
      let option = getPie3D(data, 0.8);
      //是否需要label指引线，如果要就添加一个透明的2d饼状图并调整角度使得labelLine和3d的饼状图对齐，并再次setOption
      option.series.push({
        name: "pie2d",
        type: "pie",
        labelLine: {
          show: false,
          length: 15,
          length2: 15,
        },
        startAngle: -this.fontSize(0.3), //起始角度，支持范围[0, 360]。
        clockwise: false, //饼图的扇区是否是顺时针排布。上述这两项配置主要是为了对齐3d的样式
        radius: [this.fontSize(1.3) + "%", this.fontSize(1.4) + "%"],
        center: [this.fontSize(1.5) + "%", this.fontSize(1.8) + "%"], //指示线的位置
        data: data,
        itemStyle: {
          opacity: 0,
        },
      });
      this.myChart.setOption(option);
    },
    // 字体自适应。
    fontSize(res) {
      const clientWidth =
        window.innerWidth ||
        document.documentElement.clientWidth ||
        document.body.clientWidth;
      if (!clientWidth) return;
      const fontSize = 40 * (clientWidth / 1920);
      return res * fontSize;
    },
  },

  //重新加载图表
  reloadChart() {
    this.disposeChart();
    this.initChart(this.seriesData);
  },
  //销毁图表以及重置各个数据
  disposeChart() {
    if (this.myChart) {
      this.myChart.dispose();
    }
  },

  beforeDestroy() {
    this.disposeChart();
  },
};
</script>

css样式代码

<style lang="scss" scoped>
.main {
  width: 100%;
  height: 100%;
  position: relative;

  .container {
    width: calc(100% - 0.3rem);
    margin: 0 auto;
    height: 100%;
    position: relative;
    .myChart {
      width: 100%;
      height: 100%;
      z-index: 9;
    }
    .bottom-img {
      width: 6.6rem;
      height: 3.1rem;
      background: url(~@/assets/images/bottom_right.png) no-repeat;
      background-size: 100% 100%;
      // margin-top: -2.5rem;
      position: relative;
      top: -4.5rem;
      left: 0.13rem;
    }
  }
}
</style>

结尾

如有疑问欢迎留言