效果图

58Echarts - 饼图(Pie with Scrollable Legend)_初始化

源代码

<!DOCTYPE html>
<html>

<head>
<meta charset="utf-8">
<title>ECharts</title>
<!-- 引入 echarts.js -->
<script src="js/echarts.min.js"></script>
</head>

<body>
<!-- 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'));
var option;
var data = genData(50);

option = {
title: {
text: '同名数量统计',
subtext: '纯属虚构',
x: 'center'
},
tooltip: {
trigger: 'item',
formatter: "{a} <br/>{b} : {c} ({d}%)"
},
legend: {
type: 'scroll',
orient: 'vertical',
right: 10,
top: 20,
bottom: 20,
data: data.legendData,

selected: data.selected
},
series: [{
name: '姓名',
type: 'pie',
radius: '55%',
center: ['40%', '50%'],
data: data.seriesData,
itemStyle: {
emphasis: {
shadowBlur: 10,
shadowOffsetX: 0,
shadowColor: 'rgba(0, 0, 0, 0.5)'
}
}
}]
};

function genData(count) {
var nameList = [
'赵', '钱', '孙', '李', '周', '吴', '郑', '王', '冯', '陈', '褚', '卫', '蒋', '沈', '韩', '杨', '朱', '秦', '尤', '许', '何', '吕', '施', '张', '孔', '曹', '严', '华', '金', '魏', '陶', '姜', '戚', '谢', '邹', '喻', '柏', '水', '窦', '章', '云', '苏', '潘', '葛', '奚', '范', '彭', '郎', '鲁', '韦', '昌', '马', '苗', '凤', '花', '方', '俞', '任', '袁', '柳', '酆', '鲍', '史', '唐', '费', '廉', '岑', '薛', '雷', '贺', '倪', '汤', '滕', '殷', '罗', '毕', '郝', '邬', '安', '常', '乐', '于', '时', '傅', '皮', '卞', '齐', '康', '伍', '余', '元', '卜', '顾', '孟', '平', '黄', '和', '穆', '萧', '尹', '姚', '邵', '湛', '汪', '祁', '毛', '禹', '狄', '米', '贝', '明', '臧', '计', '伏', '成', '戴', '谈', '宋', '茅', '庞', '熊', '纪', '舒', '屈', '项', '祝', '董', '梁', '杜', '阮', '蓝', '闵', '席', '季', '麻', '强', '贾', '路', '娄', '危'
];
var legendData = [];
var seriesData = [];
var selected = {};
for(var i = 0; i < 50; i++) {
name = Math.random() > 0.65 ?
makeWord(4, 1) + '·' + makeWord(3, 0) :
makeWord(2, 1);
legendData.push(name);
seriesData.push({
name: name,
value: Math.round(Math.random() * 100000)
});
selected[name] = i < 6;
}

return {
legendData: legendData,
seriesData: seriesData,
selected: selected
};

function makeWord(max, min) {
var nameLen = Math.ceil(Math.random() * max + min);
var name = [];
for(var i = 0; i < nameLen; i++) {
name.push(nameList[Math.round(Math.random() * nameList.length - 1)]);
}
return name.join('');
}
}

myChart.setOption(option);
</script>
</body>

</html>