基于Vue的3D饼图

先看效果：
再看代码：

<template><div class="container"><div style="height: 100%;width: 100%;" id="bingtu3D"></div></div></template>
<script>
import "echarts-liquidfill";
import 'echarts-gl';
import * as echarts from "echarts";export default {mounted () {this.BingTu3D()},methods: {BingTu3D(){const myCharts = echarts.init(document.getElementById('bingtu3D'));function getParametricEquation(startRatio, endRatio, isSelected, isHovered, k,height) {// 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);}return Math.sin(v) > 0 ? 1*height : -1;}};}// 生成模拟 3D 饼图的配置项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;// 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}};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);}// // 补充一个透明的圆环，用于支撑高亮功能的近似实现。series.push({name: 'mouseoutSeries',type: 'surface',parametric: true,wireframe: {show: false,},itemStyle: {opacity: 0.1,color: '#E1E8EC',},parametricEquation: {u: {min: 0,max: Math.PI * 2,step: Math.PI / 20,},v: {min: 0,max: Math.PI,step: Math.PI / 20,},x: function (u, v) {return ((Math.sin(v) * Math.sin(u) + Math.sin(u)) / Math.PI) * 2;},y: function (u, v) {return ((Math.sin(v) * Math.cos(u) + Math.cos(u)) / Math.PI) * 2;},z: function (u, v) {return Math.cos(v) > 0 ? -0.5 : -5;},},});// 补充一个透明的圆环，用于支撑高亮功能的近似实现。series.push({name: 'mouseoutSeries',type: 'surface',parametric: true,wireframe: {show: false,},itemStyle: {opacity: 0.1,color: '#E1E8EC',},parametricEquation: {u: {min: 0,max: Math.PI * 2,step: Math.PI / 20,},v: {min: 0,max: Math.PI,step: Math.PI / 20,},x: function (u, v) {return ((Math.sin(v) * Math.sin(u) + Math.sin(u)) / Math.PI) * 2;},y: function (u, v) {return ((Math.sin(v) * Math.cos(u) + Math.cos(u)) / Math.PI) * 2;},z: function (u, v) {return Math.cos(v) > 0 ? -5 : -7;},},});series.push({name: 'mouseoutSeries',type: 'surface',parametric: true,wireframe: {show: false,},itemStyle: {opacity: 0.1,color: '#E1E8EC',},parametricEquation: {u: {min: 0,max: Math.PI * 2,step: Math.PI / 20,},v: {min: 0,max: Math.PI,step: Math.PI / 20,},x: function (u, v) {return ((Math.sin(v) * Math.sin(u) + Math.sin(u)) / Math.PI) * 2.2;},y: function (u, v) {return ((Math.sin(v) * Math.cos(u) + Math.cos(u)) / Math.PI) * 2.2;},z: function (u, v) {return Math.cos(v) > 0 ? -7 : -7;},},});return series;}// 传入数据生成 optionconst optionsData = [{name: 'name1',value: 95,itemStyle: {//   opacity: 0.5,color: '#dc3545',},},{name: 'name2',value: 5,itemStyle: {//   opacity: 0.5,color: '#efb72c',},},{name: 'name3',value: 60,itemStyle: {//   opacity: 0.5,color: '#00b2ff',},},];const series = getPie3D(optionsData, 0.8, 240, 28, 26, 0.5);series.push({name: 'pie2d',type: 'pie',label: {show:true,opacity: 1,lineHeight: 20,textStyle: {fontSize: 16,color:'#fff'},},labelLine: {length: 30,length2: 60,},startAngle: -30, //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: ['20%', '50%'],center: ['50%', '50%'],data: optionsData,itemStyle: {opacity: 0,},});// 准备待返回的配置项，把准备好的 legendData、series 传入。const option = {legend: {tooltip: {show: true,},data: ['name1', 'name2', 'name3'],bottom: '1%',right:'10%',textStyle: {color: '#fff',fontSize: 16,},},animation: true,// tooltip: {//   formatter: params => {//     if (params.seriesName !== 'mouseoutSeries' && params.seriesName !== 'pie2d') {//       return `${params.seriesName}<br/><span style="display:inline-block;margin-right:5px;border-radius:5px;width:10px;height:10px;background-color:${params.color};"></span>${option.series[params.seriesIndex].pieData.value }`;//     }//   },//   textStyle : {//     fontSize : 16//   },// },title: {x: 'center',top: '20',},// backgroundColor: '#333',label: {show: true,position: 'outside',formatter: '{b} \n{c} {d}%',},xAxis3D: {min: -1,max: 1,},yAxis3D: {min: -1,max: 1,},zAxis3D: {min: -1,max: 1,},grid3D: {show: false,boxHeight: 0.5,bottom: '50%',viewControl:{distance:180,alpha:25,beta:60,autoRotate: false, // 自动旋转},},series: series,};// 绘制图表myCharts.setOption(option)//自适应大小window.onresize = () => {myCharts.resize()}},}
}
</script>
<style lang="less" scoped>
/*正文开始*/
.container{width:1920px;height:900px;background-color: #5b81ee;
}
body {width: 1920px;overflow: hidden;height: 1080px;
}
</style>