Chris Blackbourn 721fc9c1c9 UV: implement copy and paste for uv
Implement a new topology-based copy and paste solution for UVs.

Usage notes:

* Open the UV Editor

* Use the selection tools to select a Quad joined to a Triangle joined to another Quad.
* From the menu, choose UV > UV Copy
 * The UV co-ordinates for your quad<=>tri<=>quad are now stored internally

* Use the selection tools to select a different Quad joined to a Triangle joined to a Quad.
* (Optional) From the menu, choose UV > Split > Selection

* From the menu, choose UV > UV Paste
 * The UV co-ordinates for the new selection will be moved to match the stored UVs.

Repeat selection / UV Paste steps as many times as desired.
For performance considerations, see https://en.wikipedia.org/wiki/Graph_isomorphism_problem

In theory, UV Copy and Paste should work with all UV selection modes.
Please report any problems.

A copy has been made of the Graph Isomorphism code from https://github.com/stefanoquer/graphISO
Copyright (c) 2019 Stefano Quer stefano.quer@polito.it GPL v3 or later.

Additional integration code Copyright (c) 2022 by Blender Foundation, GPL v2 or later.

Maniphest Tasks: T77911
Differential Revision: https://developer.blender.org/D16278
2022-11-13 12:48:17 +13:00
2021-10-23 10:49:51 +05:30
2022-11-03 23:41:11 -04:00
2021-03-26 16:15:02 +01:00
2022-06-28 15:56:16 +02:00

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Blender
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Blender is the free and open source 3D creation suite.
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