标签:append ++ head back null end 标签 echart jquery
echarts.js 官方地址:http://echarts.baidu.com/examples/
使用方法:
1、头部引入
<script src="echarts.min.js"></script>
2、基础应用(
<!-- 为ECharts准备一个具备大小(宽高)的Dom -->
<div id="main" style="width: 600px;height:400px;"></div>
<script type="text/javascript">
// 基于准备好的dom,初始化echarts实例
var myChart = echarts.init(document.getElementById(‘main‘));
// 指定图表的配置项和数据
var option = {
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: [{
name: ‘销量‘,
type: ‘bar‘,
data: [5, 20, 36, 10, 10, 20]
}]
};
// 使用刚指定的配置项和数据显示图表。
myChart.setOption(option);
</script>
3、地图的使用
//引入山西的js文件
<script src="js/province/shanxi.js" type="text/javascript" charset="utf-8"></script>
具体代码如下:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<script src="js/jquery.js" type="text/javascript" charset="utf-8"></script>
<script src="js/echarts.min.js" type="text/javascript" charset="utf-8"></script>
<script src="js/province/shanxi.js" type="text/javascript" charset="utf-8"></script>
<title>山西地图</title>
</head>
<body>
<div id="main" style="width: 1200px;height:900px;"></div>
</body>
<script type="text/javascript">
//container 为div的id
var dom = document.getElementById("main");
//得到echarts的实例对象
var myChart = echarts.init(dom);
initEcharts(‘山西‘);
function initEcharts(pName) {
//关键是配置项
var option = {
series: [{
name: ‘网点个数‘,
//series[i]-map:系列列表。每个系列通过 type 决定自己的图表类型,此处是地图类型
type: ‘map‘,
mapType: pName,
//地图区域的多边形 图形样式,有 normal 和 emphasis 两个状态
itemStyle: {
//normal 是图形在默认状态下的样式;
normal: {
show: true,
areaColor: "#CECECE",
borderColor: "#FCFCFC",
borderWidth: "1"
},
//emphasis 是图形在高亮状态下的样式,比如在鼠标悬浮或者图例联动高亮时。
emphasis: {
show: true,
areaColor: "#C8A5DF",
}
},
//图形上的文本标签,可用于说明图形的一些数据信息
label: {
normal: {
show: true
},
emphasis: {
show: true
}
},
}],
title: {
text: pName,
left: ‘center‘
}
};
//使用刚指定的配置项和数据显示图表。
myChart.setOption(option);
}
//定义全国省份的数组
var provinces = [‘datong‘, ‘shuozhou‘, ‘xinzhou‘, ‘lvliang‘, ‘taiyuan‘, ‘yangquan‘, ‘jinzhong‘, ‘linfen‘, ‘changzhi‘, ‘jincheng‘, ‘yuncheng‘];
var provincesText = [‘大同市‘, ‘朔州市‘, ‘忻州市‘, ‘吕梁市‘, ‘太原市‘, ‘阳泉市‘, ‘晋中市‘, ‘临汾市‘, ‘长治市‘, ‘晋城市‘, ‘运城市‘ ];
myChart.on(‘click‘, function(param) {
//console.log(param);
//遍历取到provincesText 中的下标 去拿到对应的省js
for (var i = 0; i < provincesText.length; i++) {
if (param.name == provincesText[i]) {
//显示对应省份的方法
showProvince(provincesText[i],provinces[i]);
break;
}
}
});
//展示对应的省
function showProvince(pText,pName) {
loadBdScript(‘$‘ + pName + ‘JS‘, ‘js/province/‘ + pName + ‘.js‘, function() {
//初始化echarts
initEcharts(pText);
});
}
//加载对应的JS
function loadBdScript(scriptId, url, callback) {
var script = document.createElement("script")
script.type = "text/javascript";
if (script.readyState) { //IE
script.onreadystatechange = function() {
if (script.readyState == "loaded" || script.readyState == "complete") {
script.onreadystatechange = null;
callback();
}
};
} else { //Others
script.onload = function() {
callback();
};
}
script.src = url;
script.id = scriptId;
document.getElementsByTagName("head")[0].appendChild(script);
};
</script>
</html>
标签:append ++ head back null end 标签 echart jquery
原文地址:https://www.cnblogs.com/sg-yys/p/13049490.html