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Positioning node labels

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难度
5/5
预计耗时
一周以上
新手友好度
25/100
Issue 类型
功能
描述清晰度
需要澄清
活跃度
停滞
技术栈
r

调研方向

No file or test is named in the issue. Start by tracing plot.data's layout implementation and the frontend/backend boundary described here, then compare the proposed fake-graph approach in the linked gist with the existing circle and force-directed paths. Done means plot.data calculates and returns usable node-label positions for the frontend.

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描述

Right now our label placement will be just wherever. That's okay maybe but certainly not great.

For some layouts, like the circle layout, we can calculate where the label should be on the frontend. For others, like force-directed, we can't if the backend is doing the laying-out.

In order to place the labels nicely, I've seen a trick that basically does a force layout but pretends the nodes and node labels are all nodes in a fake graph with links only between a node and it's label (code).

We should think about implementing this in plot.data and returning positions of node labels to the frontend.

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