更新代码
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291
src/views/home/echarts/3DpieEcharts.vue
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291
src/views/home/echarts/3DpieEcharts.vue
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<template>
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<div style="height:100%;width:100%" :id="echartsId"></div>
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</template>
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<script setup>
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import * as echarts from "echarts";
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import "echarts-gl";
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import { fa } from "element-plus/es/locale.mjs";
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import { onMounted, toRefs,nextTick, defineProps,ref, reactive } from "vue";
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const props = defineProps({
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echartsId:{
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type:String,
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default:'lineId'
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},
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// 传入数据生成 option
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data:{
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type:Array,
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default:[
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{
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name: "待办",
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value: 2056,
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itemStyle: {
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// color: "#2A71FF"
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echarts: "rgba(44,44,44,0.8)"
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}
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},
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{
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name: "已办",
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value: 4356,
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itemStyle: {
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color: "#00EDFE"
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}
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},
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]
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}
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});
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watch(()=>props.data,val=>{
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nextTick(()=>{
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echartInit()
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})
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},{immediate:true,deep:true})
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const echartInit = () => {
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var myChart = echarts.init(document.getElementById(props.echartsId));
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const series = getPie3D(props.data, 0.8, 240, 28, 26, 0.5);
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series.push({
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name: "pie2d",
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type: "pie",
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label: {
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// show: false,
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opacity: 1,
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fontSize: 14,
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lineHeight: 20,
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textStyle: {
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fontSize: 14,
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color: "#fff"
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}
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},
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labelLine: {
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// show: false,
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length: 20,
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length2: 25
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},
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startAngle: -30, //起始角度，支持范围[0, 360]。
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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
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// radius: ["40%", "60%"],
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center: ["40%", "50%"],
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data: props.data,
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itemStyle: {
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opacity: 0
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}
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});
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// 准备待返回的配置项，把准备好的 legendData、series 传入。
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let option = {
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legend: {
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show: true,
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tooltip: {
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show: true
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},
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orient: "vertical",
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data: props.data.map((item) => item.name),
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// data: ["待办", "已办", "未处理", "忽略"],
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top: "center",
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itemGap: 14,
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itemHeight: 8,
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itemWidth: 17,
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right: "2%",
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textStyle: {
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color: "#fff",
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fontSize: 12
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}
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},
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animation: true,
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tooltip: {
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formatter: (params) => {
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if ( params.seriesName !== "mouseoutSeries" && params.seriesName !== "pie2d" ) {
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return `${ params.seriesName }<br/><span style="display:inline-block;margin-right:5px;border-radius:10px;width:10px;height:10px;background-color:${params.color };"></span>${option.series[params.seriesIndex].pieData.value + "人"}`;
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}
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},
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textStyle: {
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fontSize: 14
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}
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},
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title: {
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x: "center",
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top: "20",
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textStyle: {
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color: "#fff",
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fontSize: 22
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}
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},
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backgroundColor: "rgba(0, 29, 75, 0.65)",
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labelLine: {
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show: true,
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lineStyle: {
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color: "#7BC0CB"
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},
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normal: {
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show: false,
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length: 20,
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length2: 20
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}
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},
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label: {
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show: true,
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position: "outside",
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formatter: "{b} \n{d}%",
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textStyle: {
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color: "#fff",
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fontSize: "14px"
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}
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},
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xAxis3D: {
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min: -1,
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max: 1
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},
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yAxis3D: {
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min: -1,
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max: 1
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},
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zAxis3D: {
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min: -1,
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max: 1
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},
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grid3D: {
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show: false,
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boxHeight: 0.01,
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bottom: "50%",
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left: "-12%",
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// environment: "rgba(255,255,255,0)",// 环境颜色
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viewControl: {
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distance: 180, //圆环的大小 ,值越大换越小
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alpha: 25, //倾斜的角度
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beta: 0, //旋转的角度
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autoRotate: false // 取消自动旋转
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}
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},
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series: series
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};
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// 使用刚指定的配置项和数据显示图表。
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myChart.setOption(option);
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};
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function getParametricEquation( startRatio, endRatio, isSelected, isHovered, k, height ) {
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// 计算
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let midRatio = (startRatio + endRatio) / 2;
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let startRadian = startRatio * Math.PI * 2;
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let endRadian = endRatio * Math.PI * 2;
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let midRadian = midRatio * Math.PI * 2;
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// 如果只有一个扇形，则不实现选中效果。
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if (startRatio === 0 && endRatio === 1) {
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isSelected = false;
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}
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// 通过扇形内径/外径的值，换算出辅助参数 k（默认值 1/3）
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k = typeof k !== "undefined" ? k : 1 / 3;
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// 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）
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let offsetX = isSelected ? Math.cos(midRadian) * 0.1 : 0;
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let offsetY = isSelected ? Math.sin(midRadian) * 0.1 : 0;
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// 计算高亮效果的放大比例（未高亮，则比例为 1）
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let hoverRate = isHovered ? 1.05 : 1;
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// 返回曲面参数方程
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return {
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u: {
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min: -Math.PI,
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max: Math.PI * 3,
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step: Math.PI / 32
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},
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v: {
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min: 0,
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max: Math.PI * 2,
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step: Math.PI / 20
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},
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x: function (u, v) {
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if (u < startRadian) {
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return (offsetX + Math.cos(startRadian) * (1 + Math.cos(v) * k) * hoverRate);
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}
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if (u > endRadian) {
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return (offsetX + Math.cos(endRadian) * (1 + Math.cos(v) * k) * hoverRate);
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}
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return offsetX + Math.cos(u) * (1 + Math.cos(v) * k) * hoverRate;
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},
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y: function (u, v) {
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if (u < startRadian) {
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return (offsetY + Math.sin(startRadian) * (1 + Math.cos(v) * k) * hoverRate);
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}
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if (u > endRadian) {
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return ( offsetY + Math.sin(endRadian) * (1 + Math.cos(v) * k) * hoverRate);
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}
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return offsetY + Math.sin(u) * (1 + Math.cos(v) * k) * hoverRate;
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},
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z: function (u, v) {
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if (u < -Math.PI * 0.5) {
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return Math.sin(u);
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}
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if (u > Math.PI * 2.5) {
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return Math.sin(u);
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}
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return Math.sin(v) > 0 ? 1 * height : -1;
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}
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};
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}
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// 生成模拟 3D 饼图的配置项
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function getPie3D(pieData, internalDiameterRatio) {
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let series = [];
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let sumValue = 0;
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let startValue = 0;
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let endValue = 0;
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let legendData = [];
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let k = typeof internalDiameterRatio !== "undefined" ? (1 - internalDiameterRatio) / (1 + internalDiameterRatio) : 1 / 3;
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// 为每一个饼图数据，生成一个 series-surface 配置
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for (let i = 0; i < pieData.length; i++) {
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sumValue += pieData[i].value;
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let seriesItem = {
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name: typeof pieData[i].name === "undefined" ? `series${i}` : pieData[i].name, type: "surface",
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parametric: true,
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wireframe: { show: false },
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pieData: pieData[i],
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pieStatus: {
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selected: false,
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hovered: false,
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k: k
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}
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};
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if (typeof pieData[i].itemStyle != "undefined") {
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let itemStyle = {};
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typeof pieData[i].itemStyle.color != "undefined" ? (itemStyle.color = pieData[i].itemStyle.color) : null;
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typeof pieData[i].itemStyle.opacity != "undefined" ? (itemStyle.opacity = pieData[i].itemStyle.opacity) : null;
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seriesItem.itemStyle = itemStyle;
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}
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series.push(seriesItem);
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}
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// 使用上一次遍历时，计算出的数据和 sumValue，调用 getParametricEquation 函数，
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// 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。
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for (let i = 0; i < series.length; i++) {
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endValue = startValue + series[i].pieData.value;
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console.log(series[i]);
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series[i].pieData.startRatio = startValue / sumValue;
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series[i].pieData.endRatio = endValue / sumValue;
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series[i].parametricEquation = getParametricEquation(
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series[i].pieData.startRatio,
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series[i].pieData.endRatio,
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false,
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false,
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k,
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series[i].pieData.value
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);
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startValue = endValue;
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legendData.push(series[i].name);
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}
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return series;
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}
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</script>
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<style lang='scss' scoped>
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</style>
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