Mesh Layout

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Source

import { addPanel } from '/demo-runtime.ts';

import { Graph } from '@antv/g6';

function getData(size = 10) {
  const nodes = Array.from({ length: size * size }, (_, i) => ({ id: `${i}` }));
  const edges = [];
  for (let y = 0; y < size; ++y) {
    for (let x = 0; x < size; ++x) {
      if (y > 0) edges.push({ source: `${(y - 1) * size + x}`, target: `${y * size + x}` });
      if (x > 0) edges.push({ source: `${y * size + (x - 1)}`, target: `${y * size + x}` });
    }
  }
  return { nodes, edges };
}

const graph = new Graph({
  data: getData(),
  layout: {
    type: 'd3-force',
    manyBody: {
      strength: -30,
    },
    link: {
      strength: 1,
      distance: 20,
      iterations: 10,
    },
  },
  node: {
    style: {
      size: 10,
      fill: '#000',
    },
  },
  edge: {
    style: {
      stroke: '#000',
    },
  },
  behaviors: [{ type: 'drag-element-force' }, 'zoom-canvas'],
});

graph.render();

addPanel((gui) => {
  gui.add({ msg: 'Try to drag nodes' }, 'msg').name('Tips').disable();
});

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;
}