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78 lines
2.5 KiB
HTML
78 lines
2.5 KiB
HTML
<!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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<title>节点背景使用图片</title></head>
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<body>
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<div id="mountNode"></div>
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<script src="../build/g6.js"></script>
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<script>
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/**
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* 本示例演示以下功能：
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* 1、如何使用图片作为节点背景；
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* 2、点击切换节点背景图片。
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*
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*/
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const img = new Image();
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img.src = 'https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1566553535233&di=b0b17eeea7bd7356a6f42ebfd48e9441&imgtype=0&src=http%3A%2F%2Fa2.att.hudong.com%2F64%2F29%2F01300543361379145388299988437_s.jpg';
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// 点击图片节点，切换背景图片
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const img2 = new Image();
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img2.src = 'http://seopic.699pic.com/photo/50055/5642.jpg_wh1200.jpg';
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const data = {
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nodes: [{
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x: 400,
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y: 100,
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shape: 'image',
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id: 'node2',
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img: img.src,
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label: '头像',
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style: {
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cursor: 'pointer'
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},
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labelCfg: {
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position: 'bottom'
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}
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}],
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edges: []
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};
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// 避免拖动过程中闪烁：使用加载已经LOAD好的图片
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img.onload = function() {
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const graph = new G6.Graph({
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container: 'mountNode',
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width: 1000,
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height: 600,
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defaultEdge: {
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color: '#bae7ff'
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},
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modes: {
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default: [ 'drag-node' ],
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}
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});
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graph.data(data);
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graph.render();
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graph.on('node:click', evt => {
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const { target } = evt;
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const type = target.get('type');
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const hasChangeBg = target.get('hasChangeBg');
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if (type === 'image') {
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if (!hasChangeBg) {
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// 点击图片节点时，切换背景图片
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target.attr('img', img2);
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target.attr('imgSrc', 'http://seopic.699pic.com/photo/50055/5642.jpg_wh1200.jpg');
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target.set('hasChangeBg', true);
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} else {
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target.attr('img', img);
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target.attr('imgSrc', 'https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1566553535233&di=b0b17eeea7bd7356a6f42ebfd48e9441&imgtype=0&src=http%3A%2F%2Fa2.att.hudong.com%2F64%2F29%2F01300543361379145388299988437_s.jpg');
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target.set('hasChangeBg', false);
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}
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graph.paint()
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}
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});
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};
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</script>
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</body>
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</html> |