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- # --------------------------------------------------------------------------
- # BPyImage.py version 0.15
- # --------------------------------------------------------------------------
- # helper functions to be used by other scripts
- # --------------------------------------------------------------------------
- # ***** BEGIN GPL LICENSE BLOCK *****
- #
- # 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 curve2vecs(ob, WORLDSPACE= True):
- '''
- Takes a curve object and retuirns a list of vec lists (polylines)
- one list per curve
-
- This is usefull as a way to get a polyline per curve
- so as not to have to deal with the spline types directly
- '''
- if ob.type != 'Curve':
- raise 'must be a curve object'
-
- me_dummy = Mesh.New()
- me_dummy.getFromObject(ob)
-
- if WORLDSPACE:
- me_dummy.transform(ob.matrixWorld)
-
- # build an edge dict
- edges = {} # should be a set
-
- def sort_pair(i1, i2):
- if i1 > i2: return i2, i1
- else: return i1, i2
-
- for ed in me_dummy.edges:
- edges[sort_pair(ed.v1.index,ed.v2.index)] = None # dummy value
-
- # now set the curves
- first_time = True
-
- current_vecs = []
- vec_list = [current_vecs]
-
- for v in me_dummy.verts:
- if first_time:
- first_time = False
- current_vecs.append(v.co.copy())
- last_index = v.index
- else:
- index = v.index
- if edges.has_key(sort_pair(index, last_index)):
- current_vecs.append( v.co.copy() )
- else:
- current_vecs = []
- vec_list.append(current_vecs)
-
- last_index = index
-
- me_dummy.verts = None
-
- return vec_list
-
-
-