faces.tris.to.quad: Convert tris faces to quad faces by simple merging.

In freesurferformats: Read and Write 'FreeSurfer' Neuroimaging File Formats

Convert tris faces to quad faces by simple merging.

Description

This is experimental. Note that it can only work if the number of 'tris_faces' is even, as two consecutive tris-faces will be merged into one quad face. We could set the index to NA in that case, but I do not know how FreeSurfer handles this, so we do not guess.

Usage

faces.tris.to.quad(tris_faces)

Arguments

tris_faces

*nx3* integer matrix, the indices of the vertices making up the *n* tris faces.

Value

n/2x4 integer matrix, the indices of the vertices making up the *n* quad faces.

Note

This function does not implement proper remeshing of tri-meshes to quad-meshes. Use a proper mesh library if you need that.

freesurferformats documentation built on May 29, 2024, 5:29 a.m.