New faces created by close_holes filter set all new faces with wedge uv at 0.5

[SuX97]

I have a mesh with per-wedge UV and a associated texture image. After applying close_holes filter, some new faces is added to close holes, however the material and per-wedge UV set for those faces is not correct, I find the UVs of the newly add faces are set to be [0.5, 0.5](the center point of the image), and assigned a new material, while I actually want to get the uv by interpolating the uv of the nearby faces, and using the original material. How to fix this? Thanks!

[alemuntoni]

Well, the filter does not do what you are asking (it is not its scope), and as far as I know, there is no filter that allows to interpolate uvs in meshlab and pymeshlab. Therefore, you need to do it manually (or look for some other library that can do it for you).
At least, newly created faces generated by the filter are selected in the mesh, therefore you know what faces have uvs that must be re-computed.