vis.js 网络：节点 z-index

Question

是否有 vis.js 个节点的 CSS z-index 的等价物？

假设我有两种节点（在禁用物理的图形中）：圆形和矩形。我希望矩形在重叠时始终显示在圆上。

Answer 1

回复有点晚，但简短的回答是：否

看到这个问题：https://github.com/almende/vis/issues/3146

Answer 2

根据 mentioned issue, a more precise answer would be: there's no documented way to set z-index (and there's no such concept), but what you can use (with a risk of getting this broken at some update) is nodes are drawn in the same order they are defined. From comment 判断：

I used the following test nodes:

var nodes = [
    {id: 'a', label: 'a', shape: 'dot'},
    {id: 'b', label: 'b', shape: 'dot'},
    {id: 'c', label: 'c', shape: 'dot'},
    {id: 'd', label: 'd', shape: 'dot'}
];

When not selected, these will draw in the node order:

Now, let's change the order:

var nodes = [
    {id: 'c', label: 'c', shape: 'dot'},
    {id: 'b', label: 'b', shape: 'dot'},
    {id: 'd', label: 'd', shape: 'dot'},
    {id: 'a', label: 'a', shape: 'dot'}
];

vis.js 网络：节点 z-index

vis.js network: nodes z-index

vis.js

vis.js-network