82 lines
1.6 KiB
Vue
82 lines
1.6 KiB
Vue
<template>
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<div ref="chartDom" style="width:600px;height:400px;"></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 { nextTick, onMounted, onUnmounted, ref, watch } from "vue";
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import { listCircularDiagram } from "@/api/sidebar/reportAnalytics.js";
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import { defineProps } from "vue";
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const props = defineProps({
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data: {
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type: Array,
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required: true,
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default: () => []
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}
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});
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//创建一个响应式引用来保存DOM元素
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const chartDom = ref(null);
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let chartInstance = null;
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var option = {
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title: {
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text: "巡检人统计情况",
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left: "left"
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},
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tooltip: {
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trigger: "item"
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},
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// legend: {
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// orient: "vertical",
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// left: "left"
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// },
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series: [
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{
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type: "pie",
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radius: ["40%", "70%"],
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data: [
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],
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emphasis: {
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itemStyle: {
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shadowBlur: 10,
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shadowOffsetX: 0,
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shadowColor: "rgba(0, 0, 0, 0.5)"
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}
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}
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}
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]
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};
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//监听到有新值传入，调用函数重新渲染
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watch(() => props.data, (newData) => {
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if (chartInstance && newData) {
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option.series[0].data = newData;
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freshEchart();
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}
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}, { deep: true });
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onMounted(async () => {
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await nextTick(); //确保dow已经渲染完成
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chartInstance = echarts.init(chartDom.value);
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freshEchart();
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});
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const freshEchart = () => {
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option.series[0].data=props.data;
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chartInstance && chartInstance.clear();
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chartInstance.setOption(option);
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};
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// 销毁ECharts实例
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onUnmounted(() => {
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if (chartInstance != null && chartInstance.dispose) {
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chartInstance.dispose();
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}
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});
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</script>
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<style>
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</style> |