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样例图片
**解决思路: ** echarts 有方法 可以获取到 节点数量 然后计算数量 根据数量 计算容器高度, 然后重置echarts就可以了
<!--
* @Description:
* @Author: 李大玄
* @Date: 2020-09-10 10:33:16
* @FilePath: /textbot-web-view/Users/lidaxuan/Desktop/echarts.html
-->
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<script src="https://cdn.bootcdn.net/ajax/libs/echarts/5.1.2/echarts.js"></script>
<style>
html,
body {
height: 100%;
width: 100%;
/* background: pink; */
}
#main {
width: 100%;
height: 100%;
}
</style>
</head>
<body>
<div id="main"></div>
<script>
// import * as echarts from 'echarts';
var chartDom = document.getElementById('main');
var myChart = echarts.init(chartDom);
var option;
console.log(myChart);
var data = {
"name": "flare",
"children": [
{
"name": "data",
"children": [
{
"name": "converters",
"children": [
{ "name": "Converters", "value": 721 },
{ "name": "DelimitedTextConverter", "value": 4294 }
]
},
{
"name": "DataUtil",
"value": 3322
}
]
},
{
"name": "display",
"children": [
{ "name": "DirtySprite", "value": 8833 },
{ "name": "LineSprite", "value": 1732 },
{ "name": "RectSprite", "value": 3623 }
]
},
{
"name": "flex",
"children": [
{ "name": "FlareVis", "value": 4116 }
]
},
{
"name": "query",
"children": [
{ "name": "AggregateExpression", "value": 1616 },
{ "name": "And", "value": 1027 },
{ "name": "Arithmetic", "value": 3891 },
{ "name": "Average", "value": 891 },
{ "name": "BinaryExpression", "value": 2893 },
{ "name": "Comparison", "value": 5103 },
{ "name": "CompositeExpression", "value": 3677 },
{ "name": "Count", "value": 781 },
{ "name": "DateUtil", "value": 4141 },
{ "name": "Distinct", "value": 933 },
{ "name": "Expression", "value": 5130 },
{ "name": "ExpressionIterator", "value": 3617 },
{ "name": "Fn", "value": 3240 },
{ "name": "If", "value": 2732 },
{ "name": "IsA", "value": 2039 },
{ "name": "Literal", "value": 1214 },
{ "name": "Match", "value": 3748 },
{ "name": "Maximum", "value": 843 },
{
"name": "methods",
"children": [
{ "name": "add", "value": 593 },
{ "name": "and", "value": 330 },
{ "name": "average", "value": 287 },
{ "name": "count", "value": 277 },
{ "name": "distinct", "value": 292 },
{ "name": "div", "value": 595 },
{ "name": "eq", "value": 594 },
{ "name": "fn", "value": 460 },
{ "name": "gt", "value": 603 },
{ "name": "gte", "value": 625 },
{ "name": "iff", "value": 748 },
{ "name": "isa", "value": 461 },
{ "name": "lt", "value": 597 },
{ "name": "lte", "value": 619 },
{ "name": "max", "value": 283 },
{ "name": "min", "value": 283 },
{ "name": "mod", "value": 591 },
{ "name": "mul", "value": 603 },
{ "name": "neq", "value": 599 },
{ "name": "not", "value": 386 },
{ "name": "or", "value": 323 },
{ "name": "orderby", "value": 307 },
{ "name": "range", "value": 772 },
{ "name": "select", "value": 296 },
{ "name": "stddev", "value": 363 },
{ "name": "sub", "value": 600 },
{ "name": "sum", "value": 280 },
{ "name": "update", "value": 307 },
{ "name": "variance", "value": 335 },
{ "name": "where", "value": 299 },
{ "name": "xor", "value": 354 },
{ "name": "x_x", "value": 264 }
]
},
{ "name": "Minimum", "value": 843 },
{ "name": "Not", "value": 1554 },
{ "name": "Or", "value": 970 },
{ "name": "Query", "value": 13896 },
{ "name": "Range", "value": 1594 },
{ "name": "StringUtil", "value": 4130 },
{ "name": "Sum", "value": 791 },
{ "name": "Variable", "value": 1124 },
{ "name": "Variance", "value": 1876 },
{ "name": "Xor", "value": 1101 }
]
},
{
"name": "scale",
"children": [
{ "name": "IScaleMap", "value": 2105 },
{ "name": "LinearScale", "value": 1316 },
{ "name": "LogScale", "value": 3151 },
{ "name": "OrdinalScale", "value": 3770 },
{ "name": "QuantileScale", "value": 2435 },
{ "name": "QuantitativeScale", "value": 4839 },
{ "name": "RootScale", "value": 1756 },
{ "name": "Scale", "value": 4268 },
{ "name": "ScaleType", "value": 1821 },
{ "name": "TimeScale", "value": 5833 }
]
}
]
};
var option = {
tooltip: {
trigger: 'item',
triggerOn: 'mousemove'
},
textStyle: {
fontSize: '20px'
},
series: [
{
type: 'tree',
id: 0,
name: 'tree1',
data: [data],
top: '10%',
left: '8%',
bottom: '22%',
right: '20%',
symbolSize: 7,
edgeShape: 'polyline',
edgeForkPosition: '63%',
initialTreeDepth: 3,
lineStyle: {
width: 2
},
label: {
backgroundColor: '#fff',
position: 'left',
verticalAlign: 'middle',
align: 'right'
},
leaves: {
label: {
position: 'right',
verticalAlign: 'middle',
align: 'left'
}
},
emphasis: {
focus: 'descendant'
},
expandAndCollapse: true,
animationDuration: 550,
animationDurationUpdate: 750
}
]
};
option && myChart.setOption(option);
//主要就是这里
var container = document.getElementById('main');
var allNode = 0;
var nodes = myChart._chartsViews[0]._data._graphicEls;
console.log(nodes);
for (var i = 0, count = nodes.length; i < count; i++) {
var node = nodes[i];
if (node === undefined)
continue;
allNode++;
}
var height = window.innerHeight;
var currentHeight = 35 * allNode;
var newWidth = Math.max(currentHeight, height);
container.style.width = window.innerWidth + 'px';
container.style.height = newWidth + 'px';
myChart.resize();
</script>
</body>
</html>
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