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@@ -1,10 +1,439 @@
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<script setup>
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+import { onMounted, ref } from 'vue'
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+import * as echarts from 'echarts'
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+import 'echarts-gl'
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+
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+let chart, option;
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+const pieChart3d = ref()
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+onMounted(() => {
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+ console.log(pieChart3d)
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+ chart = echarts.init(pieChart3d.value);
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+ // 传入数据生成 option
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+ option = getPie3D(
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+ [
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+ {
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+ name: "与管理单位(物业)",
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+ value: 100,
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+ },
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+ {
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+ name: "与管理单位(非物业)",
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+ value: 12,
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+ },
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+ {
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+ name: "居民自主管理",
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+ value: 46,
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+ },
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+ {
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+ name: "街道社区代表",
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+ value: 95,
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+ },
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+ {
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+ name: "其他",
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+ value: 80,
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+ },
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+ {
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+ name: "无管理主体",
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+ value: 62,
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+ }
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+ ],
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+ 0.75
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+ );
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+
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+ // 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。
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+ let hoveredIndex = "";
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+ // 准备重新渲染扇形所需的参数
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+ let isSelected;
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+ let isHovered;
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+ let startRatio;
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+ let endRatio;
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+ let k;
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+
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+ // 监听 mouseover,近似实现高亮(放大)效果
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+ chart.on("mouseover", function (params) {
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+
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+ // 如果触发 mouseover 的扇形当前已高亮,则不做操作
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+ if (hoveredIndex === params.seriesIndex) {
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+ return;
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+
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+ // 否则进行高亮及必要的取消高亮操作
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+ } else {
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+ // 如果当前有高亮的扇形,取消其高亮状态(对 option 更新)
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+ if (hoveredIndex !== "") {
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+ // 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。
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+ isSelected = option.series[hoveredIndex].pieStatus.selected;
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+ isHovered = false;
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+ startRatio = option.series[hoveredIndex].pieData.startRatio;
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+ endRatio = option.series[hoveredIndex].pieData.endRatio;
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+ k = option.series[hoveredIndex].pieStatus.k;
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+
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+ // 对当前点击的扇形,执行取消高亮操作(对 option 更新)
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+ option.series[hoveredIndex].parametricEquation =
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+ getParametricEquation(
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+ startRatio,
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+ endRatio,
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+ isSelected,
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+ isHovered,
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+ k,
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+ option.series[hoveredIndex].pieData.value
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+ );
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+ option.series[hoveredIndex].pieStatus.hovered = isHovered;
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+
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+ // 将此前记录的上次选中的扇形对应的系列号 seriesIndex 清空
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+ hoveredIndex = "";
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+ }
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+
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+ // 如果触发 mouseover 的扇形不是透明圆环,将其高亮(对 option 更新)
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+ if (params.seriesName !== "mouseoutSeries") {
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+ // 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。
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+ isSelected = option.series[params.seriesIndex].pieStatus.selected;
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+ isHovered = true;
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+ startRatio = option.series[params.seriesIndex].pieData.startRatio;
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+ endRatio = option.series[params.seriesIndex].pieData.endRatio;
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+ k = option.series[params.seriesIndex].pieStatus.k;
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+
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+ // 对当前点击的扇形,执行高亮操作(对 option 更新)
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+ option.series[params.seriesIndex].parametricEquation =
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+ getParametricEquation(
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+ startRatio,
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+ endRatio,
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+ isSelected,
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+ isHovered,
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+ k,
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+ option.series[params.seriesIndex].pieData.value + 5
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+ );
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+ option.series[params.seriesIndex].pieStatus.hovered = isHovered;
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+
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+ // 记录上次高亮的扇形对应的系列号 seriesIndex
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+ hoveredIndex = params.seriesIndex;
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+ }
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+
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+ // 使用更新后的 option,渲染图表
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+ chart.setOption(option);
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+ }
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+ });
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+
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+ // 修正取消高亮失败的 bug
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+ chart.on("globalout", function () {
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+ if (hoveredIndex !== "") {
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+ // 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。
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+ isSelected = option.series[hoveredIndex].pieStatus.selected;
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+ isHovered = false;
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+ k = option.series[hoveredIndex].pieStatus.k;
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+ startRatio = option.series[hoveredIndex].pieData.startRatio;
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+ endRatio = option.series[hoveredIndex].pieData.endRatio;
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+
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+ // 对当前点击的扇形,执行取消高亮操作(对 option 更新)
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+ option.series[hoveredIndex].parametricEquation = getParametricEquation(
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+ startRatio,
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+ endRatio,
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+ isSelected,
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+ isHovered,
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+ k,
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+ option.series[hoveredIndex].pieData.value
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+ );
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+ option.series[hoveredIndex].pieStatus.hovered = isHovered;
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+
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+ // 将此前记录的上次选中的扇形对应的系列号 seriesIndex 清空
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+ hoveredIndex = "";
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+ }
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+
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+ // 使用更新后的 option,渲染图表
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+ chart.setOption(option);
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+ });
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+
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+ if (option && typeof option === "object") {
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+ chart.setOption(option);
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+ }
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+
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+})
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+
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+// 生成扇形的曲面参数方程
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+function getParametricEquation(
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+ startRatio,
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+ endRatio,
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+ isSelected,
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+ isHovered,
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+ k,
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+ h
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+) {
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+ // 计算
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+ const midRatio = (startRatio + endRatio) / 2;
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+ const startRadian = startRatio * Math.PI * 2;
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+ const endRadian = endRatio * Math.PI * 2;
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+ const midRadian = midRatio * Math.PI * 2;
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+
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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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+ // eslint-disable-next-line no-param-reassign
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+ isSelected = false;
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+ }
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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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+ // eslint-disable-next-line no-param-reassign
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+ k = typeof k !== "undefined" ? k : 1 / 3;
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+
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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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+ const offsetX = isSelected ? Math.cos(midRadian) * 0.1 : 0;
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+ const offsetY = isSelected ? Math.sin(midRadian) * 0.1 : 0;
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+
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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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+ const hoverRate = isHovered ? 1.05 : 1;
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+
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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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+
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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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+
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+ x(u, v) {
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+ if (u < startRadian) {
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+ return (
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+ offsetX +
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+ Math.cos(startRadian) * (1 + Math.cos(v) * k) * hoverRate
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+ );
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+ }
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+ if (u > endRadian) {
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+ return (
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+ offsetX + Math.cos(endRadian) * (1 + Math.cos(v) * k) * hoverRate
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+ );
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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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+
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+ y(u, v) {
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+ if (u < startRadian) {
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+ return (
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+ offsetY +
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+ Math.sin(startRadian) * (1 + Math.cos(v) * k) * hoverRate
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+ );
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+ }
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+ if (u > endRadian) {
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+ return (
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+ offsetY + Math.sin(endRadian) * (1 + Math.cos(v) * k) * hoverRate
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+ );
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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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+
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+ z(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) * h * 0.1;
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+ }
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+ // 当前图形的高度是Z根据h(每个value的值决定的)
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+ return Math.sin(v) > 0 ? 1 * h * 0.1 : -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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+ const series = [];
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+ // 总和
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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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+ const legendData = [];
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+ const k =
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+ typeof internalDiameterRatio !== "undefined"
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+ ? (1 - internalDiameterRatio) / (1 + internalDiameterRatio)
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+ : 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 += 1) {
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+ sumValue += pieData[i].value;
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+ console.log(pieData[i].name)
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+ const seriesItem = {
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+ name:
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+ typeof pieData[i].name === "undefined"
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+ ? `series${i}`
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+ : pieData[i].name,
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+ type: "surface",
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+ parametric: true,
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+ wireframe: {
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+ show: false,
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+ },
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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,
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+ },
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+ };
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+ if (typeof pieData[i].itemStyle !== "undefined") {
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+ const { itemStyle } = pieData[i];
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+ typeof pieData[i].itemStyle.color !== "undefined"
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+ ? (itemStyle.color = pieData[i].itemStyle.color)
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+ : null;
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+ typeof pieData[i].itemStyle.opacity !== "undefined"
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+ ? (itemStyle.opacity = pieData[i].itemStyle.opacity)
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+ : 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 += 1) {
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+ endValue = startValue + series[i].pieData.value;
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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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+ // ,使除了第一个之外的值都是10
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+ series[i].pieData.value === series[0].pieData.value ? 35 : 10
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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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+ // 准备待返回的配置项,把准备好的 legendData、series 传入。
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+ const option = {
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+ color: [
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+ "#1162fe",
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+ "#3fc865",
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+ "#a8fce3",
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+ "#5ef8c9",
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+ "#5ed3f8",
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+ "#5e92f8"
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+ ],
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+ legend: {
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+ // type: "scroll",
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+ data: legendData,
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+ icon: "roundRect",
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+ orient: 'vertical',
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+ padding: 5,
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+ itemGap: 20,
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+ top: 0,
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+ right: 0,
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+ itemWidth: 10, // 设置宽度
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+ itemHeight: 10, // 设置高度
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+ selectedMode: true,
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+ textStyle: {
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+ color: "#FFFFFF",
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+ fontSize: 14,
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+ lineHeight: 14,
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+ rich: {
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+ a: {
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+ // verticalAlign: "middle",
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+ },
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+ },
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+ padding: [0, 0, -3, 0],
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+ },
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+ },
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+ tooltip: {
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+ formatter: (params) => {
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+ if (params.seriesName !== "mouseoutSeries") {
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+ return `${params.seriesName
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+ }<br/><span style="display:inline-block;margin-right:5px;border-radius:10px;width:10px;height:10px;background-color:${params.color
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+ };"></span>${option.series[params.seriesIndex].pieData.value}`;
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+ }
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+ return "";
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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: "dataMax",
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+ },
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+ grid3D: {
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+ show: false,
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+ boxHeight: 16,
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+ top: "-17%",
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+ left: "-16%",
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+ viewControl: {
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+ // 3d效果可以放大、旋转等,请自己去查看官方配置
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+ alpha: 27,
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+ beta: 70, //旋转角度
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+ rotateSensitivity: 1,
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+ zoomSensitivity: 0,
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+ panSensitivity: 0,
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+ // autoRotate: true,
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+ distance: 150,
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+ },
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+ // 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。
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+ postEffect: {
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+ // 配置这项会出现锯齿,请自己去查看官方配置有办法解决
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+ enable: false,
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+ bloom: {
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+ enable: true,
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+ bloomIntensity: 0.1,
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+ },
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+ SSAO: {
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+ enable: true,
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+ quality: "medium",
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+ radius: 2,
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+ },
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+ },
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+ },
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+ series,
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+ };
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+ return option;
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+}
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</script>
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<template >
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- <div ref=""></div>
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+ <div class="container">
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+ <div ref="pieChart3d" class="chart"></div>
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+ </div>
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</template>
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<style scoped lang='less'>
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+
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+.container {
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+ width: 440px;
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+ height: 264px;
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|
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+ position: relative;
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|
|
+ }
|
|
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+
|
|
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+ .container::after {
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|
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+ content: "";
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|
|
+ position: absolute;
|
|
|
+ width: 290px;
|
|
|
+ height: 198px;
|
|
|
+ background: url("../assets/1.png") no-repeat;
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|
+ background-size: 100% 100%;
|
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|
+ left: calc(50% - 145px);
|
|
|
+ bottom: 1%;
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|
+ left: 0;
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|
|
+ }
|
|
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+
|
|
|
+ .container::before {
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|
|
+ content: attr(data-num);
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|
|
+ position: absolute;
|
|
|
+ font-size: 18px;
|
|
|
+ font-family: YouSheBiaoTiHei;
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|
|
+ color: #ffffff;
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|
|
+ line-height: 42px;
|
|
|
+ text-shadow: 0px 2px 6px rgba(0, 0, 0, 0.5);
|
|
|
+ left: 50%;
|
|
|
+ transform: translate(-50%);
|
|
|
+ top: 30%;
|
|
|
+ }
|
|
|
+
|
|
|
+ .chart {
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|
|
+ width: 440px;
|
|
|
+ height: 100%;
|
|
|
+ position: relative;
|
|
|
+ z-index: 1;
|
|
|
+ }
|
|
|
</style>
|