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2_3_bar_chart.html
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<!--温度计式图表-->
<!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','O3'],
},
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: 'category',
boundaryGap: true,
data: (function(){
var data=[];
for(var i=0;i<10;i++){
data.push(json[i].date);
}
return data;
})()
}
],
yAxis: [
{
type: 'value',
axisLabel: {
formatter: '{value} ug/cm3'
}
}
],
series: [
{
name: 'CO',
type: 'bar',
stack: 'sum',
barCategoryGap: '50%',
itemStyle: {
normal: {
color: 'tomato',
barBorderColor: 'tomato',
barBorderWidth: 6,
barBorderRadius:0,
label : {
show: true,
position: 'insideTop'
}
}
},
data: (function(){
var data=[];
for(var i=0;i<10;i++){
data.push(Number(json[i].CO));
}
return data;
})()
},
{
name: 'O3',
type: 'bar',
stack: 'sum',
itemStyle: {
normal: {
color: '#fff',
barBorderColor: 'tomato',
barBorderWidth: 6,
barBorderRadius:0,
label : {
show: true,
position: 'top',
formatter: function (params) {
for (var i = 0, l = option.xAxis[0].data.length; i < l; i++) {
if (option.xAxis[0].data[i] == params.name) {
return Number(option.series[0].data[i] + params.value).toFixed(3);
}
}
},
textStyle: {
color: 'tomato'
}
}
}
},
data: (function(){
var data=[];
for(var i=0;i<10;i++){
data.push(Number(json[i].O3)*5);
}
return data;
})()
},
]
};
// 为echarts对象加载数据
myChart.setOption(option);
}
}
);
</script>
</body>
</html>