Question

我正在使用vis.js并希望呈现如下图：http://visjs.org/examples/network/nodeStyles/circularImages.html

问题是我不知道如何设置每个节点的图像。在文档中说：

当您为节点提供选项时，您将覆盖全局该属性的选项，以及该属性的组选项如果节点在一个组中。如果您然后将该选项设置为null，则为空将恢复为默认值。

但没有说明如何为特定节点提供选项。

这是我的代码：

<html>
<head>
    <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/vis/4.18.1/vis.min.js"></script>
    <link href="https://cdnjs.cloudflare.com/ajax/libs/vis/4.18.1/vis.min.css" rel="stylesheet" type="text/css" />

    <style type="text/css">
        #mynetwork {
            width: 600px;
            height: 400px;
            border: 1px solid lightgray;
        }
    </style>
</head>
<body>
<div id="mynetwork"></div>

<script type="text/javascript">

    var dot = 'hello {Hey->"I am lost"; 2->3; 5->3;}';
    var parsed = vis.network.convertDot(dot);

    var data = {
      nodes: parsed.nodes,
      edges: parsed.edges
    }

    var options = parsed.options;


    options.nodes = {
      // everything that is here will apply globaly

    }

    var container = document.getElementById('mynetwork');

    var network = new vis.Network(container, data, options);
</script>
</body>
</html>

Answer 1

好的，没关系......似乎我已经找到了答案。似乎使用 Dot 语言不允许用户单独自定义节点。

这个答案对我有帮助：How to set the image size in Vis.js network graph

这就是我所拥有的

<html>
<head>
    <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/vis/4.18.1/vis.min.js"></script>
    <link href="https://cdnjs.cloudflare.com/ajax/libs/vis/4.18.1/vis.min.css" rel="stylesheet" type="text/css" />

    <style type="text/css">
        #mynetwork {
            width: 600px;
            height: 400px;
            border: 1px solid lightgray;
        }
    </style>
</head>
<body>
<div id="mynetwork"></div>

<script type="text/javascript">
var edges = [];
var nodes = [];

nodes.push({
     id: 7,
     shape: 'image',
     image: 'https://yt3.ggpht.com/-v0soe-ievYE/AAAAAAAAAAI/AAAAAAAAAAA/OixOH_h84Po/s900-c-k-no-mo-rj-c0xffffff/photo.jpg',
     label: 'Google',
     widthMin: 20,
     widthMax: 20
 });

 nodes.push({
   id: 1,
   label: 'hello!'
 });

 nodes.push({
   id: 2,
   shape: 'image',
   image: 'https://encrypted-tbn2.gstatic.com/images?q=tbn:ANd9GcSbvJNLcGgzruK47eQfHZrcotFzMF0yeK28jgFUJCXh-36zm3Nz',
   label: 'Maps'

 })

 edges.push({
   from: 2,
   to: 7,
   arrows: 'from'
 })

 edges.push({
     from: 1,
     to: 7,
     length: 100
 });

 var data = {
     nodes: nodes,
     edges: edges
 };

  var options = {};
  var container = document.getElementById('mynetwork');
  network = new vis.Network(container, data, options);

 </script>
 </body>
 </html>

如何为Vis.js中的节点提供选项

1 个答案: