echarts tree 缩放

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我是靠谱客的博主妩媚小蜜蜂，这篇文章主要介绍echarts tree 缩放，现在分享给大家，希望可以做个参考。

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<!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="./echarts-5.2.2.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);
myChart.showLoading();
let originalData = [{
name: 'flare',
children: [
{
name: 'data',
children: [
{
name: 'converters',
children: [
{ name: 'Converters', value: 721 },
{ name: 'DelimitedTextConverter', value: 4294 }
]
},
{
name: 'DataUtil',
value: 3322
}
]
},
{
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: '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: '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: '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 }
]
}
]
}];
let seriesData = originalData
let option = {
tooltip: {
trigger: 'item',
triggerOn: 'mousemove'
},
legend: {
top: '2%',
left: '3%',
orient: 'vertical',
data: [
{
name: 'tree1',
icon: 'rectangle'
}
],
borderColor: '#c23531'
},
dataZoom: {
type: 'inside'
},
series: [
{
type: 'tree',
name: 'tree1',
data: seriesData,
top: '5%',
left: '7%',
bottom: '2%',
right: '60%',
symbolSize: 7,
label: {
position: 'left',
verticalAlign: 'middle',
align: 'right'
},
leaves: {
label: {
position: 'right',
verticalAlign: 'middle',
align: 'left'
}
},
emphasis: {
focus: 'descendant'
},
expandAndCollapse: true,
animationDuration: 550,
animationDurationUpdate: 750,
roam: true
//
开启缩放和平移
}
]
}
myChart.hideLoading();
myChart.setOption(option);
myChart.on('treeroam', (res) => { // 移动or缩放
console.log(res.zoom)
option.series[0].data = originalData.map(node1 => {
return {
...node1,
children: node1.children.map(node2 => {
const leafNodeChildren = this.getLeftNodeChildren(res.zoom, node2.children)
return {
...node2,
children: node2.children
}
})
}
})
console.log(option.series[0].data)
myChart.setOption(option)
});
function getLeftNodeChildren(zoom, leafNodes) {
let nodes = []
if (zoom <= 1) {
nodes.push(leafNodes[0], { name: '……', value: null }, leafNodes[leafNodes.length - 1])
} else {
nodes = leafNodes
}
console.log(nodes)
return nodes
}
</script>
</body>
</html>

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<!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="./echarts-5.2.2.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);
myChart.showLoading();
let originalData = [{
name: 'flare',
children: [
{
name: 'data',
children: [
{
name: 'converters',
children: [
{ name: 'Converters', value: 721 },
{ name: 'DelimitedTextConverter', value: 4294 }
]
},
{
name: 'DataUtil',
value: 3322
}
]
},
{
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: '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: '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: '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 }
]
}
]
}];
let seriesData = originalData
let option = {
tooltip: {
trigger: 'item',
triggerOn: 'mousemove'
},
legend: {
top: '2%',
left: '3%',
orient: 'vertical',
data: [
{
name: 'tree1',
icon: 'rectangle'
}
],
borderColor: '#c23531'
},
dataZoom: {
type: 'inside'
},
series: [
{
type: 'tree',
name: 'tree1',
data: seriesData,
top: '5%',
left: '7%',
bottom: '2%',
right: '60%',
symbolSize: 7,
label: {
position: 'left',
verticalAlign: 'middle',
align: 'right'
},
leaves: {
label: {
position: 'right',
verticalAlign: 'middle',
align: 'left'
}
},
emphasis: {
focus: 'descendant'
},
expandAndCollapse: true,
animationDuration: 550,
animationDurationUpdate: 750,
roam: true
//
开启缩放和平移
}
]
}
myChart.hideLoading();
myChart.setOption(option);
myChart.on('treeroam', (res) => { // 移动or缩放
console.log(res.zoom)
option.series[0].data = originalData.map(node1 => {
return {
...node1,
children: node1.children.map(node2 => {
const leafNodeChildren = this.getLeftNodeChildren(res.zoom, node2.children)
return {
...node2,
children: node2.children
}
})
}
})
console.log(option.series[0].data)
myChart.setOption(option)
});
function getLeftNodeChildren(zoom, leafNodes) {
let nodes = []
if (zoom <= 1) {
nodes.push(leafNodes[0], { name: '……', value: null }, leafNodes[leafNodes.length - 1])
} else {
nodes = leafNodes
}
console.log(nodes)
return nodes
}
</script>
</body>
</html>