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2_7_bar_chart.html
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<!--横纵坐标轴互换-->
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
<title>a</title>
<style>
body {
background-color: #FFF
}
</style>
</head>
<body>
<div id="main" style="height:500px;width: 100%; margin-left: 0px;float: left;"></div>
<!-- ECharts单文件引入 -->
<script src="echarts-2/build/dist/echarts.js"></script>
<script src="http://libs.baidu.com/jquery/1.11.1/jquery.min.js"></script>
<script type="text/javascript">
// 路径配置
require.config({
paths: {
echarts: 'echarts-2/build/dist'
}
});
// 使用
require(
[
'echarts',
'echarts/chart/bar', // 使用柱状图就加载bar模块，按需加载
'echarts/chart/line'
],
function (ec) {
// 基于准备好的dom，初始化echarts图表
var myChart = ec.init(document.getElementById('main'));
var json;
$.getJSON("data/airdaily.json", function (datajson) {
optionfun(datajson);
});
function optionfun(json){
option = {
title: {
text: '空气质量变化',
subtext: 'airquality'
},
tooltip: {
trigger: 'axis',
axisPointer : { // 坐标轴指示器，坐标轴触发有效
type : 'shadow' // 默认为直线，可选为：'line' | 'shadow'
}
},
legend: {
data: ['CO','SO2']
},
toolbox: {
show : true,
orient: 'vertical',
x: 'right',
y: 'center',
feature : {
mark : {show: true},
dataView : {show: true, readOnly: false},
magicType : {show: true, type: ['line', 'bar', 'stack', 'tiled']},
restore : {show: true},
saveAsImage : {show: true}
}
},
calculable: true,
xAxis: [
{
type : 'value',
boundaryGap : [0, 0.01]
}
],
yAxis: [
{
type : 'category',
data: (function(){
var data=[];
for(var i=0;i<5;i++){
data.push(json[i].date);
}
return data;
})()
}
],
series: [
{
name: 'CO',
type: 'bar',
itemStyle: {normal: {barBorderRadius:[10, 10, 10, 10],color:'rgba(193,35,43,1)', label:{show:true}}},
data: (function(){
var data=[];
for(var i=0;i<5;i++){
data.push(Number(json[i].CO));
}
return data;
})()
},
{
name: 'SO2',
type: 'bar',
itemStyle: {normal: {barBorderRadius:[10, 10, 10, 10],color:'rgba(181,195,52,1)', label:{show:true,textStyle:{color:'#27727B'}}}},
data: (function(){
var data=[];
for(var i=0;i<5;i++){
data.push(Number(json[i].SO2));//注意json数据值形式为string，否则会导致average无法计算
}
return data;
})()
}
]
};
// 为echarts对象加载数据
myChart.setOption(option);
}
}
);
</script>
</body>
</html>