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Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

            
              <div id="mountNode"></div>
            
          
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              /*
 * Tamplate has default install the newest G6 && G6Plugins as
 * https://unpkg.com/@antv/g6/build/g6.js
 * https://unpkg.com/@antv/g6/build/plugins.js
 * if you can not access this url above you can install By you own
 */

/*
 * 模版已经默认按以下链接安装了最新版 G6 和 G6Plugins
 * https://unpkg.com/@antv/g6/build/g6.js
 * https://unpkg.com/@antv/g6/build/plugins.js
 * 如果你无法访问上述链接,你需要自己手动安装能访问的链接安装 G6 
 */
const MIN_ARROW_SIZE = 3;
G6.registerEdge('customEdge', {
  // 起始(圆形)箭头
  startArrow: {
    path() {
      const r = 5;
      const x = -5;
      const y = 0; 
      return [
        [ 'M', x, y - r ],
        [ 'a', r, r, 0, 1, 1, 0, 2 * r ],
        [ 'a', r, r, 0, 1, 1, 0, -2 * r ],
        [ 'z' ]
      ];
    },
    shorten() {
      return 10;
    },
    style(item) {
      const keyShape = item.getKeyShape();
      const { strokeOpacity, stroke } = keyShape.attr();
      return {
        fillOpacity: strokeOpacity,
        stroke
      };
    }
  },
  // 终止箭头
  endArrow: {
    path(item) {
      const keyShape = item.getKeyShape();
      let lineWidth = keyShape.attr('lineWidth');
      lineWidth = lineWidth > MIN_ARROW_SIZE ? lineWidth : MIN_ARROW_SIZE;
      const width = lineWidth * 10 / 3;
      const halfHeight = lineWidth * 4 / 3;
      const radius = lineWidth * 4;
      return [
      [ 'M', -width, halfHeight ],
      [ 'L', 0, 0 ],
      [ 'L', -width, -halfHeight ],
      [ 'A', radius, radius, 0, 0, 1, -width, halfHeight ],
      [ 'Z' ]
      ];
    },
    shorten(item) {
      const keyShape = item.getKeyShape();
      const lineWidth = keyShape.attr('lineWidth');
      return (lineWidth > MIN_ARROW_SIZE ? lineWidth : MIN_ARROW_SIZE) * 3.1;
    },
    style(item) {
      const keyShape = item.getKeyShape();
      const { strokeOpacity, stroke } = keyShape.attr();
      return {
        fillOpacity: strokeOpacity,
        fill: stroke
      };
    }
   }
});

const data = {
  nodes: [{
    id: 'node1',
    x: 100,
    y: 200
 },{
    id: 'node2',
    x: 300,
    y: 200
 }],
  edges: [{
    id: 'edge1',
    target: 'node2',
    source: 'node1'
 }]
};
const graph = new G6.Graph({
  container: 'mountNode',
  width: 500,
  height: 500
});
graph.edge({
  shape: 'customEdge',
  endArrow: true,
  startArrow: true
});
graph.read(data);

            
          
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