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dagre布局使用changeData添加数据后，节点位置发生对调 #1314

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hujinbo opened this issue Mar 16, 2020 · 6 comments
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dagre布局使用changeData添加数据后，节点位置发生对调 #1314

hujinbo opened this issue Mar 16, 2020 · 6 comments

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@hujinbo
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hujinbo commented Mar 16, 2020

问题描述：dagre布局，使用changeData添加数据，两次渲染数据前面的节点/边顺序没有改变。第二次的数据是在第一次的基础上追加的（只添加了一个节点和一条边），但是重新渲染后，节点“图表1”和“图表2”的位置发生了对调。
@big-MuMu
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big-MuMu commented Apr 5, 2020

解决了吗

@hujinbo
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hujinbo commented Apr 13, 2020

解决了吗

还没解决

@Yanyan-Wang
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G6 的 dagre 依赖了外部库 https://github.com/dagrejs/dagre
这个库也有提这个问题但是大概是算法机制的原因始终没有解决：dagrejs/dagre#189

该算法会遍历数据生成树，可能是增加了节点之后生成树的遍历顺序有变化，导致了最终结果的差异。

@chenluli chenluli mentioned this issue Jul 24, 2020
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@yingpengsha
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请问有替代方案吗🥺

@x-cold
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x-cold commented Sep 25, 2021

dagrejs/dagre#189 (comment)

@Yanyan-Wang
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Yanyan-Wang commented Nov 24, 2022 •
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新版本 G6 中的 dagre 布局已支持数据增量时尽可能保持原始顺序
3.x -> 4.x 升级指南
http://g6.antv.antgroup.com/manual/faq/upgradeguide
#2525

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5 participants
@x-cold @big-MuMu @hujinbo @Yanyan-Wang @yingpengsha