g6/demos/layout-dagre-add-node.html
2020-02-14 11:30:12 +08:00

122 lines
2.4 KiB
HTML

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<title>addItem on Dagre Layout and Update layout</title>
</head>
<body>
<div id="description">Dagre 布局,点击节点新增一个节点,点击空白区域重新布局</div>
<div id="mountNode"></div>
<script src="../build/g6.js"></script>
<script>
const data = {
nodes: [
{
id: '0',
label: '0',
},
{
id: '1',
label: '1',
},
{
id: '2',
label: '2',
},
{
id: '3',
label: '3',
},
{
id: '4',
label: '4',
},
{
id: '5',
label: '5',
},
],
edges: [
{
source: '0',
target: '1',
},
{
source: '0',
target: '2',
},
{
source: '1',
target: '3',
},
{
source: '1',
target: '4',
},
{
source: '2',
target: '5',
},
],
};
const graph = new G6.Graph({
container: 'mountNode',
width: 1000,
height: 600,
modes: {
default: ['drag-canvas', 'drag-node'],
},
layout: {
type: 'dagre',
center: [500, 300],
nodeSize: [40, 20],
nodesep: 50,
ranksep: 50,
rankdir: 'TB',
},
animate: true,
defaultNode: {
size: [40, 20],
color: 'steelblue',
shape: 'rect',
style: {
lineWidth: 2,
fill: '#fff',
},
},
defaultEdge: {
size: 1,
color: '#e2e2e2',
style: {
endArrow: {
path: 'M 4,0 L -4,-4 L -4,4 Z',
d: 4,
},
},
},
});
graph.data(data);
graph.render();
graph.on('node:click', evt => {
graph.addItem('node', {
id: 'newnode',
x: 100,
y: 100,
style: {
fill: 'red',
},
});
});
graph.on('canvas:click', evt => {
graph.updateLayout({
ranksep: 10,
rankdir: 'LR',
});
});
</script>
</body>
</html>