Save array of Ints by object on UI list item

Coding Python Support
1

Hello,

I’m writing an addon to save selected vertices (like Quick Select List on Maya), but I’m facing a problem and couldn’t find anything about it after searching on Google and this forum. This is my first addon and I have some knowledge about python.

The problem is that I need to find the correct way to save multiple arrays of integers by object, I’m not sure if I have to use a PropertyGroups because couldn’t find the appropriate one for this scenario, so I try registering an array variable in the Object type… it works; the vertices are saved for each list item but globally (for all mesh objects), does not apply only to selected object; if I select another object and create a new one list item of this object (without assigning vertices), this one has the same array of vertex that was previously assigned to the first object:

bpy.types.Object.qss_vertices = []

I already have an UIList (like Vertex Groups) that is already working for each object so I suppose that I should link that array(s) with the list item but I need a guide to do this. :o

This GIF shows how is already working

PD: Vertex Groups is not the same because if the mesh is modified new vertices are added to the already saved group.

Thanks in advance!

2

Have you tried storing them in hidden string properties? Assigned to each item in list.

3

@Albertofx I tried and it works. Thank you!

I just wonder if this is the right way to do it, there is no a way to keep it as an array and not as a string?

I upload the addon on github: https://github.com/sliker/blender-quick-select-set

Thanks!