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41 lines
1010 B
JavaScript
41 lines
1010 B
JavaScript
/**
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* @fileOverview 栅格布局
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* @author huangtonger@aliyun.com
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*/
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const G6 = require('../../src/index');
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const Util = G6.Util;
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class Layout {
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constructor(options) {
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Util.mix(this, {
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row: 10,
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col: 10,
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marginx: 20,
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marginy: 20,
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width: null,
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height: null
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}, options);
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}
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// 执行布局
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execute() {
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const graph = this.graph;
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const nodes = this.nodes;
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const width = this.width ? this.width : graph.getWidth();
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const height = this.height ? this.height : graph.getHeight();
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const center = this.center ? this.center : {
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x: width / 2,
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y: height / 2
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};
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const row = this.row;
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const col = this.col;
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this.sort && nodes.sort(this.sort);
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for (let i = 0; i < nodes.length; i++) {
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const node = nodes[i];
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node.x = (center.x - width / 2) + i % row / row * width + this.marginx;
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node.y = (center.y - height / 2) + parseInt(i / col) / col * height + this.marginy;
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}
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}
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}
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module.exports = Layout;
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