在vue中使用Echarts利用watch做动态数据渲染操作
依旧直接上代码～
首先安装引入Echarts，我是直接把Echarts挂到VUE全局变量上了
//引入echartsimport Vue from ’vue’;import echarts from ’echarts’;Vue.prototype.$echarts = echarts;
<template> <div class='demo-container'> <div ref='chart_wrap' class='chart_wrap'></div> </div></template><script>export default { name: 'demo', computed: {}, data() { return { seriesData: [] }; }, created() {}, mounted() { this.initCharts(); setTimeout(() => { this.seriesData.push({ name: '销量', type: 'bar', data: [5, 20, 36, 10, 10, 20] }); }, 5000); }, watch: { seriesData(val, oldVal) { console.log(1111, val, oldVal); this.setOptions(val); } }, methods: { initCharts() { this.chart = this.$echarts.init(this.$refs.chart_wrap); this.setOptions(); }, setOptions(series) { console.log(22222,this.chart,series); this.chart.setOption({ title: { text: 'ECharts 入门示例' }, tooltip: {}, legend: { data: ['销量'] }, xAxis: { data: ['衬衫', '羊毛衫', '雪纺衫', '裤子', '高跟鞋', '袜子'] }, yAxis: {}, series: series }); } }};</script><style rel='stylesheet/scss' lang='scss' scoped>.chart_wrap { height: 400px;}</style>
补充知识：echarts-循环生成图
1、问题背景
利用for循环生产多个气泡图，并且每个气泡都可以点击
2、实现源码
<!DOCTYPE html><html><head><meta charset='UTF-8'><title>echarts-循环生成图</title><link rel='shortcut icon' href='https://www.haobala.com/js/echarts-2.2.7/doc/asset/ico/favicon.png'><script type='text/javascript' src='https://www.haobala.com/js/echarts-2.2.7/doc/asset/js/jquery.min.js' ></script><script type='text/javascript' src='https://www.haobala.com/js/echarts-2.2.7/doc/example/www2/js/echarts-all.js' ></script><style>body,html,#div-chart{width: 99%;height: 100%;font-family: '微软雅黑';font-size: 12px;}.chart{width: 1200px;height: 100px;}</style><script>$(document).ready(function(){buildChart();buildChartJS();});function buildChart(){$('#div-chart').empty();var chart = '';for(var i=0;i<8;i++){chart += '<div id=’chart'+i+'’ class=’chart’></div>'; }$('#div-chart').append(chart);}function buildChartJS(){for(var i=0;i<8;i++){var chart = document.getElementById(’chart’+i); var echart = echarts.init(chart); var option = { legend: { data:[’scatter1’], show:false }, splitLine:{ show:false }, grid:{ borderWidth:0 }, xAxis : [ { show:false, type : ’value’, splitNumber: 2, scale: true, axisLine:{ show:false }, splitLine:{ show:false }, axisTick:{ show:false } } ], yAxis : [ { show:false, type : ’value’, splitNumber: 2, scale: true, axisLine:{ show:false }, splitLine:{ show:false } } ], series : [ { name:’scatter1’, type:’scatter’, symbol: ’emptyCircle’, symbolSize: 20, itemStyle : { normal: { color:’#0068B7’, label:{ show: true, position: ’inside’, textStyle : { fontSize : 26, fontFamily : ’微软雅黑’, color:’#0068B7’ } } } }, data: randomDataArray() } ]}; function eConsole(param) { alert(param.value); console.dir(param); } echart.on('click', eConsole);echart.setOption(option); }}function randomDataArray() { var d = []; var arr = [3,5,7,9,10,1,2,4,8,6]; var len = 10; for(var i=0;i<len;i++) { d.push([i+1,0,arr[i],]); } return d;}</script></head><body><div id='div-chart'></div></body></html>
3、实现结果
以上这篇在vue中使用Echarts利用watch做动态数据渲染操作就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持好吧啦网。
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