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javascript - d3.js 强制有向图不起作用

问题描述

每当我尝试启动我的代码时，我都会在开发控制台中收到以下错误。以下错误：

    Error: missing: 1 3d-force-graph:5:22166
    TypeError: r.attributes.position is undefine

此处看到的错误代码的实时版本： https ://s3.amazonaws.com/mnas/index.html

实际代码在这里：

<!DOCTYPE html>
<meta charset="utf-8">
<head>
  <style> body { margin: 0; } </style>
   <script src="//unpkg.com/3d-force-graph"></script>
  <!--<script src="3d-force-graph.js"></script>-->
</head>

<body>
  <div id="3d-graph"></div>

  <script>
    const elem = document.getElementById('3d-graph');
    const Graph = ForceGraph3D()
      (elem)
    .graphData({"nodes":[{ "name": "Myriel","group":  1 },{ "name": "Napoleon","group":  1 }], links: [ { "source":  1,  "target":  2,  "value":  1 }]})
        .nodeLabel('id')
        .nodeAutoColorBy('group')
        .onNodeHover(node => elem.style.cursor = node ? 'pointer' : null)
     .onNodeClick(node => {
          // Aim at node from outside it
          const distance = 40;
          const distRatio = 1 + distance/Math.hypot(node.x, node.y, node.z);

          Graph.cameraPosition(
            { x: node.x * distRatio, y: node.y * distRatio, z: node.z * distRatio }, // new position
            node, // lookAt ({ x, y, z })
            3000  // ms transition duration
          );
        });
  </script>
</body>

这是以下代码的一个分支： https ://github.com/vasturiano/3d-force-graph/blob/master/example/click-to-focus/index.html

我唯一改变的是我替换了 jsonUrl 方法，以便我可以传递静态数据。

我已经尝试通过 Dev Console 进行调试，但似乎无法找出问题所在。

任何帮助表示赞赏。

标签： javascriptd3.jsthree.jsanalyticsvisualization

解决方案

您缺少“id”属性

<!DOCTYPE html>
<meta charset="utf-8">
<head>
  <style> body { margin: 0; } </style>
   <script src="//unpkg.com/3d-force-graph"></script>
  <!--<script src="3d-force-graph.js"></script>-->
</head>

<body>
  <div id="3d-graph"></div>

  <script>
    const elem = document.getElementById('3d-graph');
    const Graph = ForceGraph3D()
      (elem)
    .graphData({"nodes":[{ "name": "Myriel","group":  1, "id" : 1},{ "name": "Napoleon","group":  1, "id": 2 }], links: [ { "source":  1,  "target":  2,  "value":  1 }]})
        .nodeLabel('name')
        .nodeAutoColorBy('group')
        .onNodeHover(node => elem.style.cursor = node ? 'pointer' : null)
     .onNodeClick(node => {
          // Aim at node from outside it
          const distance = 40;
          const distRatio = 1 + distance/Math.hypot(node.x, node.y, node.z);

          Graph.cameraPosition(
            { x: node.x * distRatio, y: node.y * distRatio, z: node.z * distRatio }, // new position
            node, // lookAt ({ x, y, z })
            3000  // ms transition duration
          );
        });
  </script>
</body>

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