How to access transform matrix?

[danwbean]

How can I access the transform matrix from a filter that rotates, translates or scales?

result = ms.compute_matrix_by_principal_axis(pointsflag=False, freeze=False)

Filters similar to above return None rather that the matrix.

[danwbean]

I found it... It is an attribute of the Mesh object. The typo in 'trasform' rather than transform tripped me up

mesh.trasform_matrix()

Docs:
trasform_matrix(self: pmeshlab.Mesh) → numpy.ndarray[numpy.float64[4, 4]]
Returns the 4x4 trasform matrix associated to the mesh.

[alemuntoni]

Thanks for reporting this! I'll fix and it will be available in the next pymeshlab version!