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#
# Filename : external_contour.py
# Author : Stephane Grabli
# Date : 04/08/2005
# Purpose : Draws the external contour of the scene
#
#############################################################################
#
# Copyright (C) : Please refer to the COPYRIGHT file distributed
# with this source distribution.
#
# 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.
#
#############################################################################
from freestyle_init import *
from logical_operators import *
from PredicatesB1D import *
from PredicatesU1D import *
from ChainingIterators import *
from shaders import *
upred = AndUP1D(QuantitativeInvisibilityUP1D(0), ExternalContourUP1D())
Operators.select(upred )
bpred = TrueBP1D();
Operators.bidirectionalChain(ChainPredicateIterator(upred, bpred), NotUP1D(upred))
shaders_list = [
ConstantThicknessShader(3),
ConstantColorShader(0.0, 0.0, 0.0,1)
]
Operators.create(TrueUP1D(), shaders_list)
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