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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 : suggestive.py
- # Author : Stephane Grabli
- # Date : 04/08/2005
- # Purpose : Draws the suggestive contours.
- # ***** The suggestive contours must be enabled
- # in the options dialog *****
- from freestyle.chainingiterators import ChainSilhouetteIterator
- from freestyle.predicates import (
- AndUP1D,
- NotUP1D,
- QuantitativeInvisibilityUP1D,
- TrueUP1D,
- pyNatureUP1D,
- )
- from freestyle.shaders import (
- ConstantColorShader,
- IncreasingThicknessShader,
- )
- from freestyle.types import Nature, Operators
- upred = AndUP1D(pyNatureUP1D(Nature.SUGGESTIVE_CONTOUR), QuantitativeInvisibilityUP1D(0))
- Operators.select(upred)
- Operators.bidirectional_chain(ChainSilhouetteIterator(), NotUP1D(upred))
- shaders_list = [
- IncreasingThicknessShader(1, 3),
- ConstantColorShader(0.2, 0.2, 0.2, 1),
- ]
- Operators.create(TrueUP1D(), shaders_list)
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