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graph.fromJSON 接口是否可以支持diff部分更新 #4308

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wb-wenbei opened this issue May 16, 2024 · 0 comments
Open

graph.fromJSON 接口是否可以支持diff部分更新 #4308

wb-wenbei opened this issue May 16, 2024 · 0 comments

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@wb-wenbei
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wb-wenbei commented May 16, 2024

功能描述

通过graph.formJson(json)更新图时,每次都是全量重绘,会导致画面闪烁。
示例
是否可以支持一个参数graph.fromJson(json, { diff: true })来更新变动的节点/边。

期望解决方案

调用fromJson(json)时,如果difftrue,则进行如下操作:

  1. 拿到现有graph中的cells列表。
  2. 首先通过cell.id对比出新增和删除的cell,将需要新增和删除的cell进行绘制。
  3. 如果有cell.id相同的cell,则通过diff算法查看cell属性是否变化,如变化,则直接更新cellprops
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