Faces and vertices lists?

Coding Python Support
1

How do i get a list with the faces in a mesh, and a list of vertices in each face?

Thank you!!

p.s. i’m looking throught several scripts, but the hierarchy it’s a bit confusing to me!

2

something like this should work:


import Blender
from Blender import *

ob = Object.GetSelected()[0]

obdata = ob.getData()

# total number of faces
totfaces = len(obdata.faces)
# total number of verts
totverts = len(obdata.verts)

# list with face indices
idx = []
for i in range(totfaces):
	idx.append(i)

# vertex coordinates
vco, vertidx = [], []
for i in idx:
	Ve,fvertidx = [], []

	fa = obdata.faces[i]

	for v in fa.v:

		Ve.append(v.co)
		fvertidx.append(v.index)


	vertidx.append(fvertidx)
	vco.append(Ve)

print vco
print ""
print vertidx

which returns the following for the default cube


[[[1.0000, 1.0000, -1.0000], [1.0000, -1.0000, -1.0000], [-1.0000, -1.0000, -1.0000], [-1.0000, 1.0000, -1.0000]], [[1.0000, 1.0000, 1.0000], [-1.0000, 1.0000, 1.0000], [-1.0000, -1.0000, 1.0000], [1.0000, -1.0000, 1.0000]], [[1.0000, 1.0000, -1.0000], [1.0000, 1.0000, 1.0000], [1.0000, -1.0000, 1.0000], [1.0000, -1.0000, -1.0000]], [[1.0000, -1.0000, -1.0000], [1.0000, -1.0000, 1.0000], [-1.0000, -1.0000, 1.0000], [-1.0000, -1.0000, -1.0000]], [[-1.0000, -1.0000, -1.0000], [-1.0000, -1.0000, 1.0000], [-1.0000, 1.0000, 1.0000], [-1.0000, 1.0000, -1.0000]], [[1.0000, 1.0000, 1.0000], [1.0000, 1.0000, -1.0000], [-1.0000, 1.0000, -1.0000], [-1.0000, 1.0000, 1.0000]]]

[[0, 1, 2, 3], [4, 7, 6, 5], [0, 4, 5, 1], [1, 5, 6, 2], [2, 6, 7, 3], [4, 0, 3, 7]]

The first list gives per face the coordinates of the vertices of that face and the second one gives the index of the verts per face

greetings,

wim

3

Thank you very, very, very much!!! :smiley: :smiley: