Prevent Overlap in d3-force Layout
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import { Graph } from '@antv/g6';
fetch('https://gw.alipayobjects.com/os/antvdemo/assets/data/relations.json')
.then((res) => res.json())
.then((data) => {
const nodes = data.nodes;
// randomize the node size
nodes.forEach((node) => {
node.size = Math.random() * 30 + 5;
});
const graph = new Graph({
container: 'container',
autoFit: 'center',
data,
node: {
style: {
size: (d) => d.size,
lineWidth: 1,
},
},
layout: {
type: 'd3-force',
collide: {
// Prevent nodes from overlapping by specifying a collision radius for each node.
radius: (d) => d.size / 2,
},
},
behaviors: ['drag-element-force'],
});
graph.render();
});
import { Graph } from '@antv/g6';
import GUI from 'lil-gui';
export function addPanel(renderPanel: (gui: GUI) => void) {
const gui = new GUI({ container: document.body });
gui.title('Control');
Object.assign(gui.domElement.style, { position: 'absolute', top: '0', right: '0', zIndex: '10' });
renderPanel(gui);
addEventListener('pagehide', () => gui.destroy(), { once: true });
}
export async function createGraph(
options: ConstructorParameters<typeof Graph>[0],
size: { width?: number; height?: number } = {},
renderPanel?: (gui: GUI, graph: Graph) => void,
) {
const container = document.createElement('div');
Object.assign(container.style, {
width: '100%',
maxWidth: `${size.width || 600}px`,
height: `${size.height || 400}px`,
});
document.getElementById('container')!.append(container);
const graph = new Graph({ ...size, ...options, width: container.clientWidth, container, autoResize: true });
addEventListener('pagehide', () => graph.destroy(), { once: true });
await graph.render();
if (renderPanel) addPanel((gui) => renderPanel(gui, graph));
return container;
}