# 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)
# 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)
# 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 : nature.py
# Author : Stephane Grabli
# Date : 04/08/2005
# Purpose : Uses the NatureUP1D predicate to select the lines
# of a given type (among Nature.SILHOUETTE, Nature.CREASE, Nature.SUGGESTIVE_CONTOURS,
# Nature.BORDERS).
# The suggestive contours must have been enabled in the
# options dialog to appear in the View Map.
from freestyle import ChainSilhouetteIterator, IncreasingColorShader, \
IncreasingThicknessShader, Nature, Operators, TrueUP1D
from PredicatesU1D import pyNatureUP1D
from logical_operators import NotUP1D
Operators.select(pyNatureUP1D(Nature.SILHOUETTE))
Operators.bidirectional_chain(ChainSilhouetteIterator(),
NotUP1D(pyNatureUP1D(Nature.SILHOUETTE)))
shaders_list = [
IncreasingThicknessShader(3, 10),
IncreasingColorShader(0.0, 0.0, 0.0, 1, 0.8, 0, 0, 1),
]
Operators.create(TrueUP1D(), shaders_list)
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# ##### END GPL LICENSE BLOCK #####
# Filename : sequentialsplit_sketchy.py
# Author : Stephane Grabli
# Date : 04/08/2005
# Purpose : Use the sequential split with two different
# predicates to specify respectively the starting and
# the stopping extremities for strokes
from freestyle import ChainSilhouetteIterator, ConstantColorShader, IncreasingThicknessShader, Nature, \
Operators, QuantitativeInvisibilityUP1D, SpatialNoiseShader, TextureAssignerShader, TrueUP1D
from PredicatesU0D import pyBackTVertexUP0D, pyVertexNatureUP0D
from logical_operators import NotUP1D
upred = QuantitativeInvisibilityUP1D(0)
Operators.select(upred)
Operators.bidirectional_chain(ChainSilhouetteIterator(), NotUP1D(upred))
## starting and stopping predicates:
start = pyVertexNatureUP0D(Nature.NON_T_VERTEX)
stop = pyBackTVertexUP0D()
Operators.sequential_split(start, stop, 10)
shaders_list = [
SpatialNoiseShader(7, 120, 2, True, True),
IncreasingThicknessShader(5, 8),
ConstantColorShader(0.2, 0.2, 0.2, 1),
TextureAssignerShader(4),
]
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 : 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 import ChainSilhouetteIterator, ConstantColorShader, IncreasingThicknessShader, \
Nature, Operators, QuantitativeInvisibilityUP1D, TrueUP1D
from PredicatesU1D import pyNatureUP1D
from logical_operators import AndUP1D, NotUP1D
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)