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# SPDX-License-Identifier: GPL-2.0-or-later
# Filename : blueprint_squares.py
# Author : Emmanuel Turquin
# Date : 04/08/2005
# Purpose : Produces a blueprint using square contour strokes
from freestyle.chainingiterators import ChainPredicateIterator
from freestyle.predicates import (
AndUP1D,
ContourUP1D,
NotUP1D,
QuantitativeInvisibilityUP1D,
SameShapeIdBP1D,
TrueUP1D,
pyHigherLengthUP1D,
)
from freestyle.shaders import (
ConstantThicknessShader,
IncreasingColorShader,
pyBluePrintSquaresShader,
pyPerlinNoise1DShader,
)
from freestyle.types import Operators
upred = AndUP1D(QuantitativeInvisibilityUP1D(0), ContourUP1D())
bpred = SameShapeIdBP1D()
Operators.select(upred)
Operators.bidirectional_chain(ChainPredicateIterator(upred, bpred), NotUP1D(upred))
Operators.select(pyHigherLengthUP1D(200))
shaders_list = [
ConstantThicknessShader(8),
pyBluePrintSquaresShader(2, 20),
pyPerlinNoise1DShader(0.07, 10, 8),
IncreasingColorShader(0.6, 0.3, 0.3, 0.7, 0.6, 0.3, 0.3, 0.3),
ConstantThicknessShader(4),
]
Operators.create(TrueUP1D(), shaders_list)
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