# 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 : split_at_highest_2d_curvature.py
# Author : Stephane Grabli
# Date : 04/08/2005
# Purpose : Draws the visible lines (chaining follows same nature lines)
# (most basic style module)
from freestyle import ChainSilhouetteIterator, ConstantThicknessShader, IncreasingColorShader, \
Operators, QuantitativeInvisibilityUP1D, TextureAssignerShader, TrueUP1D
from Functions0D import pyInverseCurvature2DAngleF0D
from PredicatesU0D import pyParameterUP0D
from PredicatesU1D import pyHigherLengthUP1D
from logical_operators import NotUP1D
Operators.select(QuantitativeInvisibilityUP1D(0))
Operators.bidirectional_chain(ChainSilhouetteIterator(),
NotUP1D(QuantitativeInvisibilityUP1D(0)))
func = pyInverseCurvature2DAngleF0D()
Operators.recursive_split(func, pyParameterUP0D(0.4, 0.6),
NotUP1D(pyHigherLengthUP1D(100)), 2)
shaders_list = [
ConstantThicknessShader(10),
IncreasingColorShader(1, 0, 0, 1, 0, 1, 0, 1),
TextureAssignerShader(3),
]
Operators.create(TrueUP1D(), shaders_list)
#
# 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 : split_at_highest_2d_curvature.py
# Author : Stephane Grabli
# Date : 04/08/2005
# Purpose : Draws the visible lines (chaining follows same nature lines)
# (most basic style module)
from freestyle import ChainSilhouetteIterator, ConstantThicknessShader, IncreasingColorShader, \
Operators, QuantitativeInvisibilityUP1D, TextureAssignerShader, TrueUP1D
from Functions0D import pyInverseCurvature2DAngleF0D
from PredicatesU0D import pyParameterUP0D
from PredicatesU1D import pyHigherLengthUP1D
from logical_operators import NotUP1D
Operators.select(QuantitativeInvisibilityUP1D(0))
Operators.bidirectional_chain(ChainSilhouetteIterator(), NotUP1D(QuantitativeInvisibilityUP1D(0)))
func = pyInverseCurvature2DAngleF0D()
Operators.recursive_split(func, pyParameterUP0D(0.4, 0.6), NotUP1D(pyHigherLengthUP1D(100)), 2)
shaders_list = [
ConstantThicknessShader(10),
IncreasingColorShader(1, 0, 0, 1, 0, 1, 0, 1),
TextureAssignerShader(3),
]
Operators.create(TrueUP1D(), shaders_list)
ConstantThicknessShader, IntegrationType, Operators, QuantitativeInvisibilityUP1D, \
SamplingShader, TextureAssignerShader, TipRemoverShader
from Functions0D import pyInverseCurvature2DAngleF0D
from PredicatesB1D import pyLengthBP1D
from PredicatesU0D import pyParameterUP0D
from PredicatesU1D import pyDensityUP1D, pyHigherLengthUP1D, pyHigherNumberOfTurnsUP1D
from logical_operators import NotUP1D
from shaders import pyNonLinearVaryingThicknessShader, pySamplingShader
Operators.select(QuantitativeInvisibilityUP1D(0))
Operators.bidirectional_chain(ChainSilhouetteIterator(),
NotUP1D(QuantitativeInvisibilityUP1D(0)))
## Splits strokes at points of highest 2D curavture
## when there are too many abrupt turns in it
func = pyInverseCurvature2DAngleF0D()
Operators.recursive_split(func, pyParameterUP0D(0.2, 0.8),
NotUP1D(pyHigherNumberOfTurnsUP1D(3, 0.5)), 2)
## Keeps only long enough strokes
Operators.select(pyHigherLengthUP1D(100))
## Sorts so as to draw the longest strokes first
## (this will be done using the causal density)
Operators.sort(pyLengthBP1D())
shaders_list = [
pySamplingShader(10),
BezierCurveShader(30),
SamplingShader(50),
ConstantThicknessShader(10),
pyNonLinearVaryingThicknessShader(4, 25, 0.6),
TextureAssignerShader(6),
ConstantColorShader(0.2, 0.2, 0.2, 1.0),
TipRemoverShader(10),
]
