vue3之echarts3D环柱图

效果：

核心代码：

<template><div class="container"><div ref="chartRef" class="charts"></div></div>
</template><script lang="ts" setup>
import * as echarts from 'echarts';
import 'echarts-gl';
import { reactive, onMounted, ref } from 'vue';const chartRef = ref(null);
let myChart: any = null;
let option: any = null;let dataList = reactive({charts: [{name: '设备故障',count: 239,color: '#218DFF',},{name: '智能识别',count: 239,color: '#2FFF88',},{name: '保修工单',count: 239,color: '#FFCE2F',},{name: '设备报警',count: 239,color: '#17EDFF ',},],
});const getParametricEquation = (startRatio: any,endRatio: any,isSelected: any,isHovered: boolean,k: any,h: any,
) => {// 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;// 通过扇形内径/外径的值，换算出辅助参数 k（默认值 1/3）k = 1 / 10;// 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;let index = 0;if (h === 0) {index = 6;h = 1;} else if (h === 1) {index = 4;} else if (h === 2) {index = 1;}// 计算高亮效果的放大比例（未高亮，则比例为 1）let hoverRate = 1.7;// 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(u: any, v: any) {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(u: any, v: any) {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(u: any, v: any) {if (u < -Math.PI * 0.5) {return Math.sin(u);}if (u > Math.PI * 2.5) {return 0;}return Math.sin(v) > 0 ? h * index : -4;},};
};
// 生成模拟 3D 饼图的配置项
const getPie3D = (pieData: any, internalDiameterRatio: any) => {let series = [];let sumValue = 0;let startValue = 0;let endValue = 0;let legendData: any = [];let k = typeof internalDiameterRatio !== 'undefined'? (1 - internalDiameterRatio) / (1 + internalDiameterRatio): 1 / 2;// 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: any = {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,},};if (typeof pieData[i].itemStyle != 'undefined') {let itemStyle: any = {};(typeof pieData[i].itemStyle.color as any) != '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。let linesSeries: any = [];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,i,);startValue = endValue;}series = series.concat(linesSeries);// 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,},parametricEquation: {u: {min: 0,max: Math.PI * 2,step: Math.PI / 20,},v: {min: 0,max: Math.PI * 2,step: Math.PI / 20,},x(u: any, v: any) {return Math.sin(v) * Math.sin(u) + Math.sin(u);},y(u: any, v: any) {return Math.sin(v) * Math.cos(u) + Math.cos(u);},z(u: any, v: any) {return Math.cos(v) > 0 ? 0.3 : -0.3;},},});// 准备待返回的配置项，把准备好的 legendData、series 传入。let option = {// animation: false,legend: {data: legendData,},xAxis3D: {min: -1,max: 1,},yAxis3D: {min: -1,max: 1,},zAxis3D: {min: -1,max: 1,},grid3D: {show: false,boxHeight: 9,left: 8,top: -30,viewControl: {// 3d效果可以放大、旋转等，请自己去查看官方配置alpha: 22,rotateSensitivity: 0,zoomSensitivity: 0,panSensitivity: 0,autoRotate: false,},},series,};return option;
};// 3D
const initCharts = () => {if (chartRef.value) {myChart = echarts.init(chartRef.value);}const options:Array<any> = [];dataList.charts.forEach((item) => {options.push({value: item.count + 0,itemStyle: {color: item.color,},});});// 传入数据生成 optionoption = getPie3D(options,0.89,);myChart.setOption(option);return true;
};
onMounted(() => {initCharts();
});</script><style lang="scss" scoped>
.container {width: 791px;height: 168px;position: relative;.charts {position: absolute;width: 50%;height: 100%;left: 195px;}
}
</style>