# 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 : tvertex_remover.py
# Author : Stephane Grabli
# Date : 04/08/2005
# Purpose : Removes TVertices
from freestyle import ChainSilhouetteIterator, ConstantColorShader, IncreasingThicknessShader, \
Operators, QuantitativeInvisibilityUP1D, SamplingShader, TrueUP1D
from logical_operators import NotUP1D
from shaders import pyTVertexRemoverShader
Operators.select(QuantitativeInvisibilityUP1D(0))
Operators.bidirectional_chain(ChainSilhouetteIterator(), NotUP1D(QuantitativeInvisibilityUP1D(0)))
shaders_list = [
IncreasingThicknessShader(3, 5),
ConstantColorShader(0.2, 0.2, 0.2, 1),
SamplingShader(10.0),
pyTVertexRemoverShader(),
]
Operators.create(TrueUP1D(), shaders_list)
# 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 : invisible_lines.py
# Author : Stephane Grabli
# Date : 04/08/2005
# Purpose : Draws all lines whose Quantitative Invisibility
# is different from 0
from freestyle import ChainSilhouetteIterator, ConstantColorShader, ConstantThicknessShader, \
Operators, QuantitativeInvisibilityUP1D, SamplingShader, TrueUP1D
from logical_operators import NotUP1D
upred = NotUP1D(QuantitativeInvisibilityUP1D(0))
Operators.select(upred)
Operators.bidirectional_chain(ChainSilhouetteIterator(), NotUP1D(upred))
shaders_list = [
SamplingShader(5.0),
ConstantThicknessShader(3.0),
ConstantColorShader(0.7, 0.7, 0.7),
]
Operators.create(TrueUP1D(), shaders_list)
# Filename : multiple_parameterization.py
# Author : Stephane Grabli
# Date : 04/08/2005
# Purpose : The thickness and the color of the strokes vary continuously
# independently from occlusions although only
# visible lines are actually drawn. This is equivalent
# to assigning the thickness using a parameterization covering
# the complete silhouette (visible+invisible) and drawing
# the strokes using a second parameterization that only
# covers the visible portions.
from freestyle import ChainSilhouetteIterator, ConstantColorShader, IncreasingColorShader, \
IncreasingThicknessShader, Operators, QuantitativeInvisibilityUP1D, SamplingShader, \
TextureAssignerShader, TrueUP1D
from shaders import pyHLRShader
Operators.select(QuantitativeInvisibilityUP1D(0))
## Chain following the same nature, but without the restriction
## of staying inside the selection (0).
Operators.bidirectional_chain(ChainSilhouetteIterator(0))
shaders_list = [
SamplingShader(20),
IncreasingThicknessShader(1.5, 30),
ConstantColorShader(0.0, 0.0, 0.0),
IncreasingColorShader(1, 0, 0, 1, 0, 1, 0, 1),
TextureAssignerShader(-1),
pyHLRShader(), ## this shader draws only visible portions
]
Operators.create(TrueUP1D(), shaders_list)
# 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 : external_contour_smooth.py
# Author : Stephane Grabli
# Date : 04/08/2005
# Purpose : Draws a smooth external contour
from freestyle import ChainPredicateIterator, ExternalContourUP1D, IncreasingColorShader, \
IncreasingThicknessShader, Operators, QuantitativeInvisibilityUP1D, SamplingShader, \
SmoothingShader, TrueBP1D, TrueUP1D
from logical_operators import AndUP1D, NotUP1D
upred = AndUP1D(QuantitativeInvisibilityUP1D(0), ExternalContourUP1D())
Operators.select(upred)
bpred = TrueBP1D()
Operators.bidirectional_chain(ChainPredicateIterator(upred, bpred),
NotUP1D(upred))
shaders_list = [
SamplingShader(2),
IncreasingThicknessShader(4, 20),
IncreasingColorShader(1.0, 0.0, 0.5, 1, 0.5, 1, 0.3, 1),
SmoothingShader(100, 0.05, 0, 0.2, 0, 0, 0, 1),
]
Operators.create(TrueUP1D(), shaders_list)
# ##### 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 import ChainSilhouetteIterator, Id, IncreasingColorShader, IncreasingThicknessShader, \
Operators, QuantitativeInvisibilityUP1D, SamplingShader, TipRemoverShader, TrueUP1D
from PredicatesU1D import pyIsOccludedByUP1D
from logical_operators import AndUP1D, NotUP1D
from shaders import pyTVertexRemoverShader
# 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)
# accumulate attributes
thickness += it.object.attribute.thickness
#end: while
self.output.write('<path d="{0}" fill="none" stroke="{1}" stroke-width="{2:.2f}" />\n'.format(
path, "black", (thickness.x + thickness.y) / (2 * nVertices)
))
#end: shade
from freestyle import ChainSilhouetteIterator, ConstantColorShader, ConstantThicknessShader, \
Operators, PolygonalizationShader, QuantitativeInvisibilityUP1D, SamplingShader, TrueUP1D
from logical_operators import NotUP1D
Operators.select(QuantitativeInvisibilityUP1D(0))
Operators.bidirectional_chain(ChainSilhouetteIterator(), NotUP1D(QuantitativeInvisibilityUP1D(0)))
shaders_list = [
SamplingShader(2.0),
ConstantThicknessShader(3),
ConstantColorShader(0.0, 0.0, 0.0),
SVGShader(output),
]
Operators.create(TrueUP1D(), shaders_list)
shaders_list = [
SamplingShader(2.0),
ConstantThicknessShader(1),
ConstantColorShader(0.0, 0.0, 0.0),
PolygonalizationShader(8),
SVGShader(output),
]
Operators.create(TrueUP1D(), shaders_list)
# Filename : sketchy_topology_broken.py
# Author : Stephane Grabli
# Date : 04/08/2005
# Purpose : The topology of the strokes is, first, built
# independantly from the 3D topology of objects,
# and, second, so as to chain several times the same ViewEdge.
from ChainingIterators import pySketchyChainingIterator
from freestyle import IncreasingColorShader, IncreasingThicknessShader, Operators, \
QuantitativeInvisibilityUP1D, SamplingShader, SmoothingShader, SpatialNoiseShader, \
TextureAssignerShader, TrueUP1D
from shaders import pyBackboneStretcherNoCuspShader
Operators.select(QuantitativeInvisibilityUP1D(0))
## Chain 3 times each ViewEdge indpendantly from the
## initial objects topology
Operators.bidirectional_chain(pySketchyChainingIterator(3))
shaders_list = [
SamplingShader(4),
SpatialNoiseShader(6, 120, 2, True, True),
IncreasingThicknessShader(4, 10),
SmoothingShader(100, 0.1, 0, 0.2, 0, 0, 0, 1),
pyBackboneStretcherNoCuspShader(20),
#ConstantColorShader(0.0, 0.0, 0.0)
IncreasingColorShader(0.2, 0.2, 0.2, 1, 0.5, 0.5, 0.5, 1),
#IncreasingColorShader(1, 0, 0, 1, 0, 1, 0, 1),
TextureAssignerShader(4),
]
Operators.create(TrueUP1D(), shaders_list)
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),
]
## Use the causal density to avoid cluttering
Operators.create(pyDensityUP1D(8, 0.4, IntegrationType.MEAN), shaders_list)
# 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 : stroke_texture.py
# Author : Stephane Grabli
# Date : 04/08/2005
# Purpose : Draws textured strokes (illustrate the StrokeTextureShader shader)
from freestyle import BezierCurveShader, ChainSilhouetteIterator, ConstantColorShader, \
ConstantThicknessShader, Operators, QuantitativeInvisibilityUP1D, SamplingShader, \
Stroke, StrokeTextureShader, TrueUP1D
from logical_operators import NotUP1D
Operators.select(QuantitativeInvisibilityUP1D(0))
Operators.bidirectional_chain(ChainSilhouetteIterator(), NotUP1D(QuantitativeInvisibilityUP1D(0)))
shaders_list = [
SamplingShader(3),
BezierCurveShader(4),
StrokeTextureShader("washbrushAlpha.bmp", Stroke.DRY_MEDIUM, True),
ConstantThicknessShader(40),
ConstantColorShader(0, 0, 0, 1),
]
Operators.create(TrueUP1D(), shaders_list)
#
# 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 : tipremover.py
# Author : Stephane Grabli
# Date : 04/08/2005
# Purpose : Removes strokes extremities
from freestyle import ChainSilhouetteIterator, ConstantColorShader, ConstantThicknessShader, \
Operators, QuantitativeInvisibilityUP1D, SamplingShader, TipRemoverShader, TrueUP1D
from logical_operators import NotUP1D
Operators.select(QuantitativeInvisibilityUP1D(0))
Operators.bidirectional_chain(ChainSilhouetteIterator(), NotUP1D(QuantitativeInvisibilityUP1D(0)))
shaders_list = [
SamplingShader(5),
ConstantThicknessShader(3),
ConstantColorShader(0, 0, 0),
TipRemoverShader(20),
]
Operators.create(TrueUP1D(), shaders_list)
# 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 : thickness_fof_depth_discontinuity.py
# Author : Stephane Grabli
# Date : 04/08/2005
# Purpose : Assigns to strokes a thickness that depends on the depth discontinuity
from freestyle import ChainSilhouetteIterator, ConstantColorShader, ConstantThicknessShader, \
Operators, QuantitativeInvisibilityUP1D, SamplingShader, TrueUP1D
from logical_operators import NotUP1D
from shaders import pyDepthDiscontinuityThicknessShader
Operators.select(QuantitativeInvisibilityUP1D(0))
Operators.bidirectional_chain(ChainSilhouetteIterator(),
NotUP1D(QuantitativeInvisibilityUP1D(0)))
shaders_list = [
SamplingShader(1),
ConstantThicknessShader(3),
ConstantColorShader(0.0, 0.0, 0.0),
pyDepthDiscontinuityThicknessShader(0.8, 6),
]
Operators.create(TrueUP1D(), shaders_list)
