Specify the shape response event
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import { Circle as CircleGeometry } from '@antv/g';
import { CanvasEvent, Circle, ExtensionCategory, Graph, NodeEvent, register } from '@antv/g6';
class LightNode extends Circle {
render(attributes, container) {
super.render(attributes, container);
this.upsert('light', CircleGeometry, { r: 8, fill: '#0f0', cx: 0, cy: -25 }, container);
}
}
register(ExtensionCategory.NODE, 'light', LightNode);
const graph = new Graph({
container: 'container',
data: {
nodes: [
{ id: 'node1', style: { x: 100, y: 150 } },
{ id: 'node2', style: { x: 300, y: 150 } },
],
edges: [{ source: 'node1', target: 'node2' }],
},
node: {
type: 'light',
style: {
size: 100,
labelText: (d) => d.style.labelText || 'Click the Light',
labelPlacement: 'center',
labelBackground: true,
labelBackgroundFill: '#fff',
labelBackgroundFillOpacity: 0.8,
},
},
behaviors: ['drag-element'],
});
graph.render();
graph.on(NodeEvent.CLICK, (event) => {
const { target, originalTarget } = event;
if (originalTarget.className === 'light') {
graph.updateNodeData([{ id: target.id, states: ['selected'], style: { labelText: 'Clicked!' } }]);
graph.draw();
}
});
graph.on(CanvasEvent.CLICK, () => {
const selectedIds = graph.getElementDataByState('node', 'selected').map((node) => node.id);
graph.updateNodeData(selectedIds.map((id) => ({ id, states: [], style: { labelText: 'Click the Light' } })));
graph.draw();
});
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;
}