mirror of
https://gitee.com/antv/g6.git
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57 lines
1.3 KiB
HTML
57 lines
1.3 KiB
HTML
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<meta http-equiv="X-UA-Compatible" content="ie=edge">
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<title>画廊-函数生成树</title>
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</head>
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<body>
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<div id="mountNode" ></div>
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<p>创意来源：https://www.rosettacode.org/wiki/Fractal_tree#JavaScript</p>
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<script src="../build/g6.js"></script>
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<script>
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const getTreeData = (x1, y1, angle, depth, nodes = [], edges = []) => {
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const deg_to_rad = Math.PI / 180;
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if (depth !== 0){
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const x2 = x1 + (Math.cos(angle * deg_to_rad) * depth * 10.0);
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const y2 = y1 + (Math.sin(angle * deg_to_rad) * depth * 10.0);
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const id1 = G6.Util.guid();
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const id2 = G6.Util.guid();
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nodes.push({
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id: id1,
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x: x1,
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y: y1
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});
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nodes.push({
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id: id2,
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x: x2,
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y: y2
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});
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edges.push({
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source: id1,
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target: id2
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});
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getTreeData(x2, y2, angle - 30, depth - 1, nodes, edges);
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getTreeData(x2, y2, angle + 30, depth - 1, nodes, edges);
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}
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return {
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nodes,
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edges,
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}
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};
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const data = getTreeData(0, 0, -90, 9);
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const graph = new G6.Graph({
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container: 'mountNode',
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fitView: 'autoZoom',
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height: window.innerHeight
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});
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graph.node({
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size: 2
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});
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graph.read(data);
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</script>
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</body>
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</html>
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