g6/demos/layout-dagre-add-node.html
2019-10-22 15:43:11 +08:00

118 lines
2.3 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>