blender/release/scripts/freestyle/styles/curvature2d.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 : curvature2d.py
# Author : Stephane Grabli
# Date : 04/08/2005
# Purpose : The stroke points are colored in gray levels and depending
# on the 2d curvature value
from freestyle.chainingiterators import ChainSilhouetteIterator
from freestyle.predicates import (
NotUP1D,
QuantitativeInvisibilityUP1D,
TrueUP1D,
)
from freestyle.shaders import (
ConstantThicknessShader,
StrokeTextureShader,
py2DCurvatureColorShader,
)
from freestyle.types import Operators, Stroke
Operators.select(QuantitativeInvisibilityUP1D(0))
Operators.bidirectional_chain(ChainSilhouetteIterator(), NotUP1D(QuantitativeInvisibilityUP1D(0)))
shaders_list = [
StrokeTextureShader("smoothAlpha.bmp", Stroke.OPAQUE_MEDIUM, False),
ConstantThicknessShader(5),
py2DCurvatureColorShader()
]
Operators.create(TrueUP1D(), shaders_list)