实现一个柱状图,这个柱状图的高度在不停的刷新,效果如下:
官网是没有动态刷新的示例的,由于需要我查看了其源码,并根据之前示例做出了动态柱状图的效果,希望对同学们有用!
看一下代码:
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<%@ page language= "java" import= "java.util.*" pageEncoding= "UTF-8" %> <html> <head> <title>Highcharts Example</title> <script language= "javascript" type= "text/javascript" src= "jquery.min.js" ></script> <script language= "javascript" type= "text/javascript" src= "highcharts.js" ></script> <script language= "javascript" type= "text/javascript" src= "exporting.js" ></script> <script type= "text/javascript" > var chart; $(document).ready( function () { chart = new Highcharts.Chart({ chart: { renderTo: 'container' , type: 'column' , events: { load: function () { // set up the updating of the chart each second var series = this .series[0]; setInterval( function () { var data = []; data.push([ 'Apples' , Math.random()]); data.push([ 'Oranges' , Math.random()]); data.push([ 'Pears' , Math.random()]); data.push([ 'Grapes' , Math.random()]); data.push([ 'Bananas' , Math.random()]); series.setData(data); }, 2000); } } }, title: { text: '<b>Java小强制作</b>' }, xAxis: { categories: [ 'Apples' , 'Oranges' , 'Pears' , 'Grapes' , 'Bananas' ] }, yAxis: { min: 0, title: { text: '当前产值' }, stackLabels: { enabled: true , style: { fontWeight: 'bold' , color: (Highcharts.theme && Highcharts.theme.textColor) || 'gray' } } }, legend: { align: 'right' , x: -100, verticalAlign: 'top' , y: 20, floating: true , backgroundColor: (Highcharts.theme && Highcharts.theme.legendBackgroundColorSolid) || 'white' , borderColor: '#CCC' , borderWidth: 1, shadow: false }, tooltip: { formatter: function () { return '<b>' + this .x + '</b><br/>' + this .series.name + ': ' + this .y + '<br/>' + 'Total: ' + this .point.stackTotal; } }, plotOptions: { column: { stacking: 'normal' , dataLabels: { enabled: true , color: (Highcharts.theme && Highcharts.theme.dataLabelsColor) || 'white' } } }, series: [{ name: 'John' , data: [5, 3, 4, 7, 2] }] }); }); </script> </head> <body> <div id= "container" style= "width: 800px;height: 400px" ></div> </body> </html> |
同样,绘制这个图需要的也是双维数组,我尝试了几个方法,使用 series.setData(data); 可是实现数据的重新指定!
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。
原文链接:https://www.iteye.com/blog/cuisuqiang-1555452