g6/demos/custom-tree-graph.html
2019-03-15 17:22:17 +08:00

127 lines
3.0 KiB
HTML

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<div id="mountNode"></div>
<button id="download">点击下载图片</button>
<script src="assets/hierarchy.js"></script>
<script src="../build/g6.js"></script>
<script src="./assets/jquery-3.2.1.min.js"></script>
<script>
const COLLAPSE_ICON = function(x, y, r) {
return [
[ 'M', x, y ],
[ 'a', r, r, 0, 1, 0, r * 2, 0],
[ 'a', r, r, 0, 1, 0, -r * 2, 0],
[ 'M', x + 2, y ],
[ 'L', x + 2 * r - 2, y]
];
}
const EXPAND_ICON = function(x, y, r) {
return [
[ 'M', x, y ],
[ 'a', r, r, 0, 1, 0, r * 2, 0],
[ 'a', r, r, 0, 1, 0, -r * 2, 0],
[ 'M', x + 2, y ],
[ 'L', x + 2 * r - 2, y],
[ 'M', x + r, y - r + 2 ],
[ 'L', x + r, y + r - 2 ]
]
};
G6.registerNode('tree-node', {
drawShape(cfg, group) {
const rect = group.addShape('rect', {
attrs: { fill: '#fff', stroke: '#666' }
});
const content = cfg.id.replace(/(.{19})/g,'$1\n');
const text = group.addShape('text', {
attrs: {
text: content,
x: 0,
y: 0,
textAlign: 'left',
textBaseline: 'middle',
fill: '#666'
}
});
const bbox = text.getBBox();
const hasChildren = cfg.data.children && cfg.data.children.length > 0;
if (hasChildren) {
group.addShape('marker', {
attrs: {
x: bbox.maxX + 6,
y: bbox.minX + bbox.height / 2 - 6,
r: 6,
symbol: COLLAPSE_ICON,
stroke: '#666',
lineWidth: 2
},
className: 'collapse-icon'
});
}
rect.attr({
x: bbox.minX - 4,
y: bbox.minY - 6,
width: bbox.width + ( hasChildren ? 26 : 8),
height: bbox.height + 12});
return rect;
}
}, 'single-shape');
const graph = new G6.TreeGraph({
container: 'mountNode',
width: 800,
height: 600,
modes: {
default: [{
type: 'collapse-expand',
onChange(item, collapsed) {
const data = item.get('model').data;
const icon = item.get('group').findByClassName('collapse-icon');
if (collapsed) {
icon.attr('symbol', EXPAND_ICON);
} else {
icon.attr('symbol', COLLAPSE_ICON);
}
data.collapsed = collapsed;
return true;
}
}, 'drag-canvas']
},
defaultNode: {
shape: 'tree-node',
anchorPoints: [ [0, 0.5], [1, 0.5] ],
},
defaultEdge: {
shape: 'cubic-horizontal'
},
edgeStyle: {
default: {
stroke: '#A3B1BF'
}
},
layout: data => {
return Hierarchy.compactBox(data, {
direction: 'LR',
getId(d) { return d.id; },
getHeight() { return 16; },
getWidth() { return 16; },
getVGap() { return 20; },
getHGap() { return 80; }
});
}
});
$.getJSON('./assets/data/modeling-methods.json', data => {
graph.data(data);
graph.render();
graph.fitView();
});
document.getElementById('download').addEventListener('click', () => {
graph.downloadImage();
});
</script>
</body>
</html>