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- <script setup>
- import { onMounted, ref, watch } from "vue";
- import * as echarts from "echarts";
- import "echarts-gl";
- const props = defineProps({
- glxsList: Array,
- })
- let chart, option;
- const pieChart3d = ref();
- function initChart() {
- chart = echarts.init(pieChart3d.value);
- option = getPie3D(props.glxsList.map(item => ({
- ...item,
- label: {
- show: true
- }
- })),
- 0.75
- );
- // 监听鼠标事件,实现饼图选中效果(单选),近似实现高亮(放大)效果。
- let hoveredIndex = "";
- // 准备重新渲染扇形所需的参数
- let isSelected;
- let isHovered;
- let startRatio;
- let endRatio;
- let k;
- // 监听 mouseover,近似实现高亮(放大)效果
- chart.on("mouseover", function (params) {
- // 如果触发 mouseover 的扇形当前已高亮,则不做操作
- if (hoveredIndex === params.seriesIndex) {
- return;
- // 否则进行高亮及必要的取消高亮操作
- } else {
- // 如果当前有高亮的扇形,取消其高亮状态(对 option 更新)
- if (hoveredIndex !== "") {
- // 从 option.series 中读取重新渲染扇形所需的参数,将是否高亮设置为 false。
- isSelected = option.series[hoveredIndex].pieStatus.selected;
- isHovered = false;
- startRatio = option.series[hoveredIndex].pieData.startRatio;
- endRatio = option.series[hoveredIndex].pieData.endRatio;
- k = option.series[hoveredIndex].pieStatus.k;
- // 对当前点击的扇形,执行取消高亮操作(对 option 更新)
- option.series[hoveredIndex].parametricEquation = getParametricEquation(
- startRatio,
- endRatio,
- isSelected,
- isHovered,
- k,
- option.series[hoveredIndex].pieData.value
- );
- option.series[hoveredIndex].pieStatus.hovered = isHovered;
- // 将此前记录的上次选中的扇形对应的系列号 seriesIndex 清空
- hoveredIndex = "";
- }
- // 如果触发 mouseover 的扇形不是透明圆环,将其高亮(对 option 更新)
- if (params.seriesName !== "mouseoutSeries") {
- // 从 option.series 中读取重新渲染扇形所需的参数,将是否高亮设置为 true。
- isSelected = option.series[params.seriesIndex].pieStatus.selected;
- isHovered = true;
- startRatio = option.series[params.seriesIndex].pieData.startRatio;
- endRatio = option.series[params.seriesIndex].pieData.endRatio;
- k = option.series[params.seriesIndex].pieStatus.k;
- // 对当前点击的扇形,执行高亮操作(对 option 更新)
- option.series[params.seriesIndex].parametricEquation =
- getParametricEquation(
- startRatio,
- endRatio,
- isSelected,
- isHovered,
- k,
- option.series[params.seriesIndex].pieData.value + 5
- );
- option.series[params.seriesIndex].pieStatus.hovered = isHovered;
- // 记录上次高亮的扇形对应的系列号 seriesIndex
- hoveredIndex = params.seriesIndex;
- }
- // 使用更新后的 option,渲染图表
- chart.setOption(option);
- }
- });
- // 修正取消高亮失败的 bug
- chart.on("globalout", function () {
- if (hoveredIndex !== "") {
- // 从 option.series 中读取重新渲染扇形所需的参数,将是否高亮设置为 true。
- isSelected = option.series[hoveredIndex].pieStatus.selected;
- isHovered = false;
- k = option.series[hoveredIndex].pieStatus.k;
- startRatio = option.series[hoveredIndex].pieData.startRatio;
- endRatio = option.series[hoveredIndex].pieData.endRatio;
- // 对当前点击的扇形,执行取消高亮操作(对 option 更新)
- option.series[hoveredIndex].parametricEquation = getParametricEquation(
- startRatio,
- endRatio,
- isSelected,
- isHovered,
- k,
- option.series[hoveredIndex].pieData.value
- );
- option.series[hoveredIndex].pieStatus.hovered = isHovered;
- // 将此前记录的上次选中的扇形对应的系列号 seriesIndex 清空
- hoveredIndex = "";
- }
- // 使用更新后的 option,渲染图表
- chart.setOption(option);
- });
- if (option && typeof option === "object") {
- chart.setOption(option);
- }
- }
- onMounted(() => {
- initChart();
- });
- watch(() => props.glxsList, () => {
- initChart();
- })
- // 生成扇形的曲面参数方程
- function getParametricEquation(
- startRatio,
- endRatio,
- isSelected,
- isHovered,
- k,
- h
- ) {
- // 计算
- const midRatio = (startRatio + endRatio) / 2;
- const startRadian = startRatio * Math.PI * 2;
- const endRadian = endRatio * Math.PI * 2;
- const 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) {
- // eslint-disable-next-line no-param-reassign
- 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)
- // eslint-disable-next-line no-param-reassign
- 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)
- const offsetX = isSelected ? Math.cos(midRadian) * 0.1 : 0;
- const 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)
- const 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(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(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(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 : -1;
- },
- };
- }
- // 生成模拟 3D 饼图的配置项
- function getPie3D(pieData, internalDiameterRatio) {
- const series = [];
- // 总和
- let sumValue = 0;
- let startValue = 0;
- let endValue = 0;
- const legendData = [];
- const k =
- typeof internalDiameterRatio !== "undefined"
- ? (1 - internalDiameterRatio) / (1 + internalDiameterRatio)
- : 1 / 3;
- let labelSeries = {
- id: 'labelSeries',
- type: 'bar3D',
- barSize: [0, 0],
- data: [],
- label: {
- show: true,
- formatter: function (params) {
- return `${params.value[3]}`;
- },
- color: '#fff',
- fontSize: '18px'
- }
- };
- // 为每一个饼图数据,生成一个 series-surface 配置
- for (let i = 0; i < pieData.length; i += 1) {
- sumValue += pieData[i].value;
- // console.log(pieData[i].name);
- const seriesItem = {
- name:
- typeof pieData[i].name === "undefined" ? `series${i}` : pieData[i].name,
- type: "surface",
- parametric: true,
- wireframe: {
- show: false,
- },
- pieData: pieData[i],
- pieStatus: {
- selected: false,
- hovered: false,
- k,
- }
- };
- if (typeof pieData[i].itemStyle !== "undefined") {
- const { itemStyle } = pieData[i];
- 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 += 1) {
- 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,
- // ,使除了第一个之外的值都是10
- series[i].pieData.value
- );
- startValue = endValue;
- legendData.push(series[i].name);
- // 判断增加 label 效果 @20210613
- if (pieData[i].label && pieData[i].label.show) {
- let labelRadian = (series[i].pieData.startRatio + series[i].pieData.endRatio) * Math.PI;
- labelSeries.data.push({
- name: series[i].name,
- value: [Math.cos(labelRadian), Math.sin(labelRadian), 1.2, series[i].pieData.value],
- itemStyle: {
- opacity: 1,
- },
- });
- }
- }
- // 将 labelSeries 添加进去 @20210613
- series.push(labelSeries);
- // 准备待返回的配置项,把准备好的 legendData、series 传入。
- const option = {
- color: ["#1162fe", "#3fc865", "#FF7A00", "#5ef8c9", "#5ed3f8", "#5e92f8"],
- legend: {
- data: ["有管理单位(物业)", "有管理单位(非物业)", "居民自主管理", "街道社区代管", "其他管理形式", "无管理主体"],
- icon: "roundRect",
- orient: "vertical",
- padding: 5,
- itemGap: 20,
- top: "4%",
- right: 0,
- itemWidth: 10, // 设置宽度
- itemHeight: 10, // 设置高度
- selectedMode: true,
- textStyle: {
- color: "#FFFFFF",
- fontSize: 14,
- lineHeight: 14,
- rich: {
- a: {
- // verticalAlign: "middle",
- },
- },
- padding: [0, 0, -3, 0],
- },
- },
- tooltip: {
- formatter: (params) => {
- if (params.seriesName !== "mouseoutSeries") {
- 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}`;
- }
- return "";
- },
- },
- title: [
- {
- text: "单位:栋",
- top: 8,
- left: 10,
- textStyle: {
- fontSize: 12,
- color: "#5ed3f8",
- },
- },
- ],
- xAxis3D: {
- min: -1,
- max: 1,
- },
- yAxis3D: {
- min: -1,
- max: 1,
- },
- zAxis3D: {
- min: -1,
- max: 'dataMax',
- },
- grid3D: {
- show: false,
- boxHeight: 15,
- top: "-17%",
- left: "-16%",
- viewControl: {
- // 3d效果可以放大、旋转等,请自己去查看官方配置
- alpha: 27,
- beta: 70, //旋转角度
- rotateSensitivity: 1,
- zoomSensitivity: 0,
- panSensitivity: 0,
- distance: 150,
- },
- // 后处理特效可以为画面添加高光、景深、环境光遮蔽(SSAO)、调色等效果。可以让整个画面更富有质感。
- postEffect: {
- // 配置这项会出现锯齿,请自己去查看官方配置有办法解决
- enable: false,
- bloom: {
- enable: true,
- bloomIntensity: 0.1,
- },
- SSAO: {
- enable: true,
- quality: "medium",
- radius: 2,
- },
- },
- },
- series,
- };
- return option;
- }
- </script>
- <template>
- <div class="container">
- <div ref="pieChart3d" class="chart"></div>
- </div>
- </template>
- <style scoped lang="less">
- .container {
- width: 440px;
- height: 264px;
- position: relative;
- }
- .container::after {
- content: "";
- position: absolute;
- width: 290px;
- height: 198px;
- background: url("../assets/images/1.png") no-repeat;
- background-size: 100% 100%;
- left: calc(50% - 145px);
- bottom: 1%;
- left: 0;
- }
- .container::before {
- content: attr(data-num);
- position: absolute;
- font-size: 18px;
- font-family: YouSheBiaoTiHei;
- color: #ffffff;
- line-height: 42px;
- text-shadow: 0px 2px 6px rgba(0, 0, 0, 0.5);
- left: 50%;
- transform: translate(-50%);
- top: 30%;
- }
- .chart {
- width: 440px;
- height: 100%;
- position: relative;
- z-index: 1;
- }
- </style>
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