Differential D163 Diff 474 release/scripts/freestyle/styles/haloing.py

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release/scripts/freestyle/styles/haloing.py

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				# ##### 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
				#
				# ##### END GPL LICENSE BLOCK #####

				# Filename : haloing.py
				# Author : Stephane Grabli
				# Date : 04/08/2005
				# Purpose : This style module selects the lines that
				# are connected (in the image) to a specific
				# object and trims them in order to produce
				# a haloing effect around the target shape

				from freestyle.chainingiterators import ChainSilhouetteIterator
				from freestyle.predicates import (
				AndUP1D,
				NotUP1D,
				QuantitativeInvisibilityUP1D,
				TrueUP1D,
				pyIsOccludedByUP1D,
				)
				from freestyle.shaders import (
				IncreasingColorShader,
				IncreasingThicknessShader,
				SamplingShader,
				TipRemoverShader,
				pyTVertexRemoverShader,
				)
				from freestyle.types import Id, Operators


				# id corresponds to the id of the target object
				# (accessed by SHIFT+click)
				id = Id(3,0)
				upred = AndUP1D(QuantitativeInvisibilityUP1D(0), pyIsOccludedByUP1D(id))
				Operators.select(upred)
				Operators.bidirectional_chain(ChainSilhouetteIterator(), NotUP1D(upred))
				shaders_list = [
				IncreasingThicknessShader(3, 5),
				IncreasingColorShader(1,0,0, 1,0,1,0,1),
				SamplingShader(1.0),
				pyTVertexRemoverShader(),
				TipRemoverShader(3.0),
				]
				Operators.create(TrueUP1D(), shaders_list)