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#!BPY
"""
Name: 'UVs from unselected adjacent'
Blender: 242
Group: 'UVCalculation'
Tooltip: 'Assign UVs to selected faces from surrounding unselected faces.'
"""
__author__ = "Campbell Barton"
__url__ = ("blender", "elysiun")
__version__ = "1.0 2006/02/07"
__bpydoc__ = """\
This script sets the UV mapping and image of selected faces from adjacent unselected faces.
Use this script in face select mode for texturing between textured faces.
"""
# ***** BEGIN GPL LICENSE BLOCK *****
#
# Script copyright (C) Campbell J Barton
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
# ***** END GPL LICENCE BLOCK *****
# --------------------------------------------------------------------------
from Blender import *
def mostUsedImage(imageList): # Returns the image most used in the list.
if not imageList:
return None
elif len(imageList) < 3:
return imageList[0]
# 3+ Images, Get the most used image for surrounding faces.
imageCount = {}
for image in imageList:
if image:
image_key= image.name
else:
image_key = None
try:
imageCount[image_key]['imageCount'] +=1 # an extra user of this image
except:
imageCount[image_key] = {'imageCount':1, 'blenderImage':image} # start with 1 user.
# Now a list of tuples, (imageName, {imageCount, image})
imageCount = imageCount.items()
try: imageCount.sort(key=lambda a: a[1])
except: imageCount.sort(lambda a,b: cmp(a[1], b[1]))
return imageCount[-1][1]['blenderImage']
def main():
scn = Scene.GetCurrent()
ob = scn.objects.active
if ob == None or ob.type != 'Mesh':
Draw.PupMenu('ERROR: No mesh object in face select mode.')
return
me = ob.getData(mesh=1)
if not me.faceUV:
Draw.PupMenu('ERROR: No mesh object in face select mode.')
return
SELECT_FLAG = Mesh.FaceFlags.SELECT
HIDE_FLAG = Mesh.FaceFlags.HIDE
def use_face(f_flag):
if f_flag & HIDE_FLAG: return False
elif f_flag & SELECT_FLAG: return True
else: return False
selfaces = [f for f in me.faces if use_face(f.flag)]
unselfaces = [f for f in me.faces if not use_face(f.flag)]
# Gather per Vert UV and Image, store in vertUvAverage
vertUvAverage = [[[],[]] for i in xrange(len(me.verts))]
for f in unselfaces: # Unselected faces only.
fuv = f.uv
for i,v in enumerate(f):
vertUvAverage[v.index][0].append(fuv[i])
vertUvAverage[v.index][1].append(f.image)
# Average per vectex UV coords
for vertUvData in vertUvAverage:
uvList = vertUvData[0]
if uvList:
# Convert from a list of vectors into 1 vector.
vertUvData[0] = reduce(lambda a,b: a+b, uvList, Mathutils.Vector(0,0)) * (1.0/len(uvList))
else:
vertUvData[0] = None
# Assign to selected faces
TEX_FLAG = Mesh.FaceModes['TEX']
for f in selfaces:
uvlist = []
imageList = []
for i,v in enumerate(f):
uv, vImages = vertUvAverage[v.index]
uvlist.append( uv )
imageList.extend(vImages)
if None not in uvlist:
# all the faces images used by this faces vert. some faces will be added twice but thats ok.
# Get the most used image and assign to the face.
image = mostUsedImage(imageList)
f.uv = uvlist
if image:
f.image = image
f.mode |= TEX_FLAG
Window.RedrawAll()
if __name__ == '__main__':
main()
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