PyMeshLab - Target Length abs Filter script - Isotropic Explicit Remeshing

Question

I would like to remesh my model using filter called "Remeshing: Isotropic Explicit Remeshing". In that filter, I'd like to adjust the target length. There are two types of target length, abs and %. But in the filter script available in PyMeshLab, there is only filter script for target length in terms of %. I don't want to adjust the percentage as I want to apply the same script for different size of models, where abs target length (in world unit format) will make more similar edge length rather than % form.

Is there anyway I can write the script for target length in abs form?

Answer 1

I think that documentation for remeshing_isotropic_explicit_remeshing is not very clear. I'm supposing you are using current version of pymeshlab (21.10)

if you pass a float value as parameter, it should be interpreted as an absolute value. You can force this behavior using arguments of type pymeshlab.AbsoluteValue(x). If you need to interpreter arguments as percentage value, use pymeshlab.Percentage(x). You can find an example here

import pymeshlab

ms = pymeshlab.MeshSet()
ms.load_new_mesh('bunny10k.ply')

#Apply absolute value 3 as argument
ms.remeshing_isotropic_explicit_remeshing(targetlen = pymeshlab.AbsoluteValue(3))
ms.save_current_mesh('output1.ply')

ms.load_new_mesh('bunny10k.ply')
#Apply percentage 3% as argument
ms.remeshing_isotropic_explicit_remeshing(targetlen = pymeshlab.Percentage(3))
ms.save_current_mesh('output2.ply')