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import { BaseEdge, ExtensionCategory, Graph, register } from '@antv/g6';
class PolylineEdge extends BaseEdge {
getKeyPath(attributes) {
const [sourcePoint, targetPoint] = this.getEndpoints(attributes);
return [
['M', sourcePoint[0], sourcePoint[1]],
['L', targetPoint[0] / 2 + (1 / 2) * sourcePoint[0], sourcePoint[1]],
['L', targetPoint[0] / 2 + (1 / 2) * sourcePoint[0], targetPoint[1]],
['L', targetPoint[0], targetPoint[1]],
];
}
}
register(ExtensionCategory.EDGE, 'custom-polyline', PolylineEdge);
const graph = new Graph({
container: 'container',
data: {
nodes: [
{ id: 'node-0', style: { x: 100, y: 100, ports: [{ key: 'right', placement: [1, 0.5] }] } },
{ id: 'node-1', style: { x: 250, y: 200, ports: [{ key: 'left', placement: [0, 0.5] }] } },
],
edges: [{ source: 'node-0', target: 'node-1' }],
},
edge: {
type: 'custom-polyline',
style: {
startArrow: true,
endArrow: true,
stroke: '#F6BD16',
},
},
behaviors: ['drag-element'],
});
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;
}