<!doctype html>
<meta charset="utf-8">
<title>Dagre D3 Demo: Arrows</title>
<link rel="stylesheet" href="demo.css">
<script src="https://d3js.org/d3.v5.min.js" charset="utf-8"></script>
<script src="../dagre-d3.js"></script>
<style id="css">
body {
font: 300 14px 'Helvetica Neue', Helvetica;
}
.node rect,
.node circle,
.node ellipse {
stroke: #333;
fill: #fff;
stroke-width: 1px;
}
.edgePath path {
stroke: #333;
fill: #333;
stroke-width: 1.5px;
}
.node rect {
background: lightblue;
font-size: 16px;
color: white;
width: 50px;
height: 50px;
}
</style>
<h1>Dagre D3 Demo: Arrows</h1>
<svg width=960 height=600><g/></svg>
<section>
<p>A sample that shows the different arrows available in dagre-d3.
</section>
<script id="js">
// Create a new directed graph
var g = new dagreD3.graphlib.Graph().setGraph({});
g.setGraph({
nodesep: 70,
ranksep: 50,
rankdir: "LR", // 流程方向
marginx: 20,
marginy: 20
});
// 設置節點
g.setNode('p2', { label: 'p'});
g.setNode('p', { label: 'p'});
g.setNode('c', { label: 'c'});
var html = `<div style="color: white;background-color: red;">html</div>`
g.setNode('p1', {
labelType: 'html',
label: html,
rx: 0, // 圓角
ry: 0,
// padding: 0,
});
g.setNode('c1', { label: 'c'});
// 連接線 （start, end, lineStyle）
g.setEdge('c', 'p', {
arrowhead: 'normal',
label: ''
});
g.setEdge('c', 'p2', {
arrowhead: 'normal',
label: ''
});
var svg = d3.select('svg'),
inner = svg.select('g');
// 可以收縮放大
var zoom = d3.zoom().on("zoom", function() {
inner.attr("transform", d3.event.transform);
});
svg.call(zoom);
// 渲染到頁面
var render = new dagreD3.render();
render(inner, g);
var initialScale = 0.75;
svg.call(zoom.transform, d3.zoomIdentity.translate((svg.attr("width") - g.graph().width * initialScale) / 2, 20).scale(initialScale));
svg.attr('height', g.graph().height * initialScale + 40);
</script>
<script src="demo.js"></script>
dagre-d3流程圖
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