vue实现3D饼图（echart三维饼图）

效果如图：

1、图表依赖：echartjs、echart-gl

npm install echarts

npm install echarts-gl

2、DOM

  
  <div class="m-warning">
    <div class="warning-pie" id="pieChart">div>
  div>

3、JS引入，与处理
①引入

import echarts from 'echarts'
import 'echarts-gl'

②处理

  export default {
    components: {},
    data() {
      return {}
    },
    mounted() { //加载完DOM渲染
      this.handlePieChart();
    },
    methods: {
      /*
      *预警情况饼图
       */
      handlePieChart(){
				// let myMidd = this.$echarts.init(document.getElementById('bzt1'))
        var echarts = require('echarts');
        var myChart = echarts.init(document.getElementById('pieChart'));
				function getParametricEquation(startRatio, endRatio, isSelected, isHovered, k, height) {
					// 计算
					// console.log("getParametricEquation")
					let midRatio = (startRatio + endRatio) / 2;
					let startRadian = startRatio * Math.PI * 2;
					let endRadian = endRatio * Math.PI * 2;
					let midRadian = midRatio * Math.PI * 2;

					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);
							}
							return Math.sin(v) > 0 ? 1 * height : -1;
						}
					};
				}

				// 3D饼图的配置项，同echarjs的series
				function getPie3D(pieData, internalDiameterRatio) {
					let series = [];
					let sumValue = 0;
					let startValue = 0;
					let endValue = 0;
					let legendData = [];
					let k = typeof internalDiameterRatio !== 'undefined' ? (1 - internalDiameterRatio) / (1 + internalDiameterRatio) :
						1 / 3;

					// 3个饼图参数
					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
							},
               label: {
                    normal: {
                       position: 'inner',
                       show : false
                    }
                  },
              labelLine: {
                normal: {
                  lineStyle: {
                    color: 'rgba(255, 255, 255, 0.3)'
                  },
                  smooth: 0.2,
                  length: 50,
                  length2:100,
                }
              },
							pieData: pieData[i],
							pieStatus: {
								selected: false,
								hovered: false,
								k: k
							}
						};
						if (typeof pieData[i].itemStyle != 'undefined') {
							let itemStyle = {};
							typeof pieData[i].itemStyle.color != 'undefined' ? itemStyle.color = pieData[i].itemStyle.color : null;
							typeof pieData[i].itemStyle.opacity != 'undefined' ? itemStyle.opacity = pieData[i].itemStyle.opacity : 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;
						console.log(series[i]);
						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;
						legendData.push(series[i].name);
					}
					// 准备待返回的配置项，把准备好的 legendData、series 传入。
					let option = {
						tooltip: {
							formatter: params => {
								if (params.seriesName !== 'mouseoutSeries') {
									return `${params.seriesName}
${params.color};">${option.series[params.seriesIndex].pieData.value}`;
								}
							}
						},
						legend: {
							data: legendData,
				            itemWidth:15,//色标图宽
				            itemHeight:7,//色标图高
				            orient: 'vertical',//垂直显示  
				            top:5,
				            right:60,
				            itemGap:25,//色标间隔
							textStyle: {
								color: '#fff',
								fontSize: 14 
							}
						},
						xAxis3D: {
							min: -1,
							max: 1
						},
						yAxis3D: {
							min: -1,
							max: 1
						},
						zAxis3D: {
							min: -1,
							max: 1
						},
						grid3D: {
							show: false,
							boxHeight: 20,
							top: '-30',
                            left:'-70',
							bottom: '80%',
							environment: "auto", 
							viewControl: {
								distance: 200,//远近
								alpha: 25,//饼图X轴旋转
								beta: 0,//饼图Y轴旋转
							},

						},
						series: series
					};
					return option
				}

				let option = getPie3D([{
						name: 'SOS',
						value: 3,
						itemStyle: {
							opacity: 1,
							color: 'rgba(228,220,65,1)',
						}
					}, 
          {
						name: '掉线',
						value: 1,
						itemStyle: {
							opacity: 1,
							color: 'rgba(77,157,229,1)',
						}
					}, 
          {
						name: '脱岗',
						value: 1,
						itemStyle: {
							opacity: 1,
							color: 'rgba(94,209,213,1)',
						}
					}

				], 2);
				myChart.setOption(option)
			}
    }
}

4、css3

  .m-warning {
    width: 450px;
    height: 270px;
    overflow: hidden;
    float: right;
    margin:60px 0 0 60px;
    .warning-pie{ 
      width:450px;
      height: 210px;
      }
  }

完整可运行、可预览代码：

https://www.zeropo.com.cn/dashujumuban/112.html

以上，谢谢观看！