529 lines
17 KiB
Vue
529 lines
17 KiB
Vue
<template>
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<div class="water-eval-container">
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<div class="cityGreenLand-charts" id="cityGreenLand-charts" :style="`width:${width};height:${height}px`">
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</div>
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</div>
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</template>
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<script>
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import echarts from 'echarts'
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// import 'echarts-gl';
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export default {
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name: "cityGreenLand",
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components: {},
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props: {
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pieData: {
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type: Array,
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default: () => {
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return [{
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name: '市级协会',
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value: 62,
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itemStyle: {
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color: '#01f9cc',
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}
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}, {
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name: '测试透明',
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value: 1,
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itemStyle: {
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color: 'rgba(0,0,0,0)'
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}
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}, {
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name: '县市级协会',
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value: 27,
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itemStyle: {
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color: '#02adf2'
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}
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}, {
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name: '测试透明',
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value: 1,
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itemStyle: {
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color: 'rgba(0,0,0,0)',
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}
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}, {
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name: '各县市区',
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value: 2,
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itemStyle: {
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color: '#fcbc01'
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}
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}, {
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name: '测试透明',
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value: 1,
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itemStyle: {
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color: 'rgba(0,0,0,0)'
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}
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}]
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}
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},
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basicConfig: {
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type: Object,
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default: () => {
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return {
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top: 10,
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right: 10,
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left: 'auto',
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bottom: 'auto',
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showLegend: false, //是否显示图例
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transparent: 0.95, //宽度
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pieOpacity: 1, //饼的透明度
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needInterval: true, //是否需要间隔
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interNum: 3, //间隔距离
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}
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}
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},
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height: {
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type: Number,
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default: 400,
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},
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width: {
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type: String,
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default: '100%'
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}
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},
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watch: {
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pieData: {
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handler(newVal) {
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if (newVal && newVal.length) {
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this.optionData = JSON.parse(JSON.stringify(newVal));
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}
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},
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immediate: true
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}
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},
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data() {
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return {
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optionData: []
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}
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},
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mounted() {
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this.$nextTick(function() {
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this.init();
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});
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},
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methods: {
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init() {
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//构建3d饼状图
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let myChart = echarts.init(document.getElementById('cityGreenLand-charts'));
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// 传入数据生成 option
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// let data=[];
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// if(this.basicConfig.needInterval){
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// this.optionData.map(item=>{
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// if(item.value > this.basicConfig.interNum){
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// itme.cusValue=item.value - this.basicConfig.interNum
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// }
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// })
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// }
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this.option = this.getPie3D(this.optionData, this.basicConfig.transparent, this.basicConfig.pieOpacity);
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//console.log(this.option.series)
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myChart.setOption(this.option);
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//是否需要label指引线，如果要就添加一个透明的2d饼状图并调整角度使得labelLine和3d的饼状图对齐，并再次setOption
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// this.option.series.push({
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// name: 'pie2d',
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// type: 'pie',
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// labelLine:{
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// show: false
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// },
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// label: {
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// show: false
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// },
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// startAngle: -20 , //起始角度，支持范围[0, 360]。
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// clockwise: true,//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: ['20%', '50%'],
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// center: ['50%', '50%'],
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// data: this.optionData,
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// itemStyle:{
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// opacity:0
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// }
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// });
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// myChart.setOption(this.option);
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this.bindListen(myChart);
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},
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getPie3D(pieData, internalDiameterRatio, opacity) {
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//internalDiameterRatio:透明的空心占比
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let that = this;
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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 legendBfb = [];
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let k = 1 - internalDiameterRatio;
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// pieData.sort((a, b) => {
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// return (b.value - a.value);
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// });
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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,
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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: k
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},
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center: ['20%', '50%'],
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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 :
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null;
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typeof pieData[i].itemStyle.opacity != 'undefined' ? itemStyle.opacity = pieData[i].itemStyle
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.opacity : null;
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itemStyle.normal = {
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borderWidth: 500,
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borderColor: 'red',
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color: typeof pieData[i].itemStyle.color != 'undefined' ? itemStyle.color = pieData[i]
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.itemStyle.color : opacity,
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opacity: typeof pieData[i].itemStyle.opacity != 'undefined' ? itemStyle.opacity = pieData[
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i].itemStyle.opacity : opacity,
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};
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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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legendData = [];
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legendBfb = [];
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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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series[i].pieData.startRatio = startValue / sumValue;
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series[i].pieData.endRatio = endValue / sumValue;
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series[i].parametricEquation = this.getParametricEquation(series[i].pieData.startRatio, series[i]
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.pieData.endRatio,
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false, false, k, series[i].pieData.value);
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startValue = endValue;
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let bfb = that.fomatFloat(series[i].pieData.value / sumValue, 4);
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legendData.push({
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name: series[i].name,
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value: bfb
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});
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legendBfb.push({
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name: series[i].name,
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value: bfb
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});
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}
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let boxHeight = this.getHeight3D(series, 10); //通过传参设定3d饼/环的高度，26代表26px
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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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data: legendData,
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orient: 'verital',
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right: this.basicConfig.right,
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top: this.basicConfig.top,
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left: this.basicConfig.left,
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bottom: this.basicConfig.bottom,
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itemGap: 10,
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textStyle: {
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color: '#A1E2FF',
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},
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show: this.basicConfig.showLegend,
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icon: "rect",
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formatter: function(param) {
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let item = legendBfb.filter(item => item.name == param)[0];
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let bfs = that.fomatFloat(item.value * 100, 2) + "%";
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return `${item.name} ${bfs}`;
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}
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},
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labelLine: {
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normal: {
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position: 'inner',
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show: false
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},
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emphasis: {
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show: true
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}
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// show: false,
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// lineStyle: {
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// color: '#7BC0CB'
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// }
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},
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label: {
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normal: {
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show: false
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},
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emphasis: {
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show: true
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}
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// show: true,
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// position: 'outside',
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// rich: {
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// b: {
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// color: '#7BC0CB',
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// fontSize: 12,
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// lineHeight: 20
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// },
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// c: {
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// fontSize: 16,
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// },
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// },
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// formatter: '{b|{b} \n}{c|{c}}{b| 亩}',
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},
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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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let bfb = ((option.series[params.seriesIndex].pieData.endRatio - option.series[
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params.seriesIndex].pieData.startRatio) *
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100).toFixed(2);
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return `${params.seriesName}<br/>` +
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`<span style="display:inline-block;margin-right:5px;border-radius:10px;width:10px;height:10px;background-color:${params.color};"></span>` +
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`${ bfb }%`;
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}
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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: boxHeight, //圆环的高度
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viewControl: { //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: 30, //角度
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distance: 150, //调整视角到主体的距离，类似调整zoom
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rotateSensitivity: 0, //设置为0无法旋转
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zoomSensitivity: 0, //设置为0无法缩放
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panSensitivity: 0, //设置为0无法平移
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autoRotate: true //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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return option;
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},
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//获取3d丙图的最高扇区的高度
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getHeight3D(series, height) {
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series.sort((a, b) => {
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return (b.pieData.value - a.pieData.value);
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})
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return height * 25 / series[0].pieData.value;
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},
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// 生成扇形的曲面参数方程，用于 series-surface.parametricEquation
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getParametricEquation(startRatio, endRatio, isSelected, isHovered, k, h) {
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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 : Math.cos(midRadian) * 0.01;
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let offsetY = isSelected ? Math.sin(midRadian) * 0.1 : Math.sin(midRadian) * 0.01;
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// let offsetX = Math.cos(midRadian) * 0.1;
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// let offsetY = Math.sin(midRadian) * 0.1;
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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) * h * .1;
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}
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return Math.sin(v) > 0 ? 1 * h * .1 : -1;
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}
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};
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},
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fomatFloat(num, n) {
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var f = parseFloat(num);
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if (isNaN(f)) {
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return false;
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}
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f = Math.round(num * Math.pow(10, n)) / Math.pow(10, n); // n 幂
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var s = f.toString();
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var rs = s.indexOf('.');
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//判定如果是整数，增加小数点再补0
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if (rs < 0) {
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rs = s.length;
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s += '.';
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}
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while (s.length <= rs + n) {
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s += '0';
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}
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return s;
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},
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bindListen(myChart) {
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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 that = this;
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let selectedIndex = '';
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let hoveredIndex = '';
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// 监听点击事件，实现选中效果（单选）
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myChart.on('click', function(params) {
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// 从 option.series 中读取重新渲染扇形所需的参数，将是否选中取反。
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let isSelected = !that.option.series[params.seriesIndex].pieStatus.selected;
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let isHovered = that.option.series[params.seriesIndex].pieStatus.hovered;
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let k = that.option.series[params.seriesIndex].pieStatus.k;
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let startRatio = that.option.series[params.seriesIndex].pieData.startRatio;
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let endRatio = that.option.series[params.seriesIndex].pieData.endRatio;
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// 如果之前选中过其他扇形，将其取消选中（对 option 更新）
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if (selectedIndex !== '' && selectedIndex !== params.seriesIndex) {
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that.option.series[selectedIndex].parametricEquation = that.getParametricEquation(that
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.option.series[
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selectedIndex].pieData
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.startRatio, that.option.series[selectedIndex].pieData.endRatio, false, false, k,
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that.option.series[
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selectedIndex].pieData
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.value);
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that.option.series[selectedIndex].pieStatus.selected = false;
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}
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// 对当前点击的扇形，执行选中/取消选中操作（对 option 更新）
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that.option.series[params.seriesIndex].parametricEquation = that.getParametricEquation(
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startRatio, endRatio,
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isSelected,
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isHovered, k, that.option.series[params.seriesIndex].pieData.value);
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that.option.series[params.seriesIndex].pieStatus.selected = isSelected;
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// 如果本次是选中操作，记录上次选中的扇形对应的系列号 seriesIndex
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isSelected ? selectedIndex = params.seriesIndex : null;
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// 使用更新后的 option，渲染图表
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myChart.setOption(that.option);
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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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myChart.on('mouseover', function(params) {
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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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// 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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// 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 = that.option.series[hoveredIndex].pieStatus.selected;
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isHovered = false;
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startRatio = that.option.series[hoveredIndex].pieData.startRatio;
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endRatio = that.option.series[hoveredIndex].pieData.endRatio;
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k = that.option.series[hoveredIndex].pieStatus.k;
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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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that.option.series[hoveredIndex].parametricEquation = that.getParametricEquation(
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startRatio, endRatio,
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isSelected,
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isHovered, k, that.option.series[hoveredIndex].pieData.value);
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that.option.series[hoveredIndex].pieStatus.hovered = isHovered;
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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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// 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' && params.seriesName !== 'pie2d') {
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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 = that.option.series[params.seriesIndex].pieStatus.selected;
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||
isHovered = true;
|
||
startRatio = that.option.series[params.seriesIndex].pieData.startRatio;
|
||
endRatio = that.option.series[params.seriesIndex].pieData.endRatio;
|
||
k = that.option.series[params.seriesIndex].pieStatus.k;
|
||
// 对当前点击的扇形，执行高亮操作（对 option 更新）
|
||
that.option.series[params.seriesIndex].parametricEquation = that.getParametricEquation(
|
||
startRatio, endRatio,
|
||
isSelected, isHovered, k, that.option.series[params.seriesIndex].pieData
|
||
.value + 5);
|
||
that.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
|
||
myChart.setOption(that.option);
|
||
}
|
||
});
|
||
// 修正取消高亮失败的 bug
|
||
myChart.on('globalout', function() {
|
||
// 准备重新渲染扇形所需的参数
|
||
let isSelected;
|
||
let isHovered;
|
||
let startRatio;
|
||
let endRatio;
|
||
let k;
|
||
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 = that.option.series[hoveredIndex].pieStatus.selected;
|
||
isHovered = false;
|
||
k = that.option.series[hoveredIndex].pieStatus.k;
|
||
startRatio = that.option.series[hoveredIndex].pieData.startRatio;
|
||
endRatio = that.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）
|
||
that.option.series[hoveredIndex].parametricEquation = that.getParametricEquation(
|
||
startRatio, endRatio,
|
||
isSelected,
|
||
isHovered, k, that.option.series[hoveredIndex].pieData.value);
|
||
that.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
|
||
myChart.setOption(that.option);
|
||
});
|
||
}
|
||
}
|
||
}
|
||
</script>
|
||
<style lang="scss">
|
||
.water-eval-container {
|
||
width: 100%;
|
||
height: 100%;
|
||
margin-top: 0 !important;
|
||
}
|
||
</style>
|
||
|
||
.highcharts-tooltip {
|
||
font-size: 37px;
|
||
}
|
||
</style>
|