[Bf-python] NMesh and edges informations

[Stephane SOPPERA]

Willian Padovani Germano wrote:

> Stephane SOPPERA wrote:
>
>> I still do have a problem: edges informations are lost when 
>> NMesh.update() is used.
>> If no one have time to work on that issue, I can spend some time on 
>> it. But I don't want to work on that if nobody want to review and 
>> commit my developpements. So I'll wait until getting an answer before 
>> starting anything.
>
>
> Hi Stephane,
>
> Proper addition of edges to NMesh means integrating them like done for 
> verts and faces, you know, aka an NMEdge struct.  You're welcome to 
> work on it, it's needed.  It will require grabbing edge info and 
> creating python data from it and, when sending back to Blender, 
> converting the data back to Blender, but the issue is that adding this 
> can't break existing scripts.  And it must also work with or without 
> edge data present in the mesh, of course.
>
> For example: a current script that updates a mesh's vert and face 
> lists but ignores its edge list shouldn't fail.  So maybe it'd be 
> better to add a new flag to mesh.update() to specify that edge info is 
> present, so new scripts can use edges if they need to, but old ones 
> will still work.
>
> Delete / create edges can be done with a single function call in 
> Blender, we can use that for general cases internally and maybe even 
> also wrap the functionality for BPython.
>
> Anyway, we can help coding / discussing these things here.

Willian,

Thanks for you answer.
I have a first API proposal, see the attached HTML file.

I'd like first to have your opinion about it before starting coding 
anything.

Thanks,
Stephane
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