#  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)
Example #4
0
#  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 : apriori_and_causal_density.py
#  Author   : Stephane Grabli
#  Date     : 04/08/2005
#  Purpose  : Selects the lines with high a priori density and 
#             subjects them to the causal density so as to avoid 
#             cluttering

from freestyle import ChainPredicateIterator, ConstantColorShader, ConstantThicknessShader, IntegrationType, \
    Operators, QuantitativeInvisibilityUP1D, TrueBP1D
from PredicatesU1D import pyDensityUP1D, pyHighViewMapDensityUP1D
from logical_operators import AndUP1D, NotUP1D

upred = AndUP1D(QuantitativeInvisibilityUP1D(0), pyHighViewMapDensityUP1D(0.3, IntegrationType.LAST))
Operators.select(upred)
bpred = TrueBP1D()
Operators.bidirectional_chain(ChainPredicateIterator(upred, bpred), NotUP1D(QuantitativeInvisibilityUP1D(0)))
shaders_list = [
    ConstantThicknessShader(2),
    ConstantColorShader(0, 0, 0, 1),
    ]
Operators.create(pyDensityUP1D(1, 0.1, IntegrationType.MEAN), shaders_list)
Example #5
0
#  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 : qi1.py
#  Author   : Stephane Grabli
#  Date     : 04/08/2005
#  Purpose  : Draws lines hidden by one surface.
#             *** Quantitative Invisibility must have been
#             enabled in the options dialog to use this style module ****

from freestyle import ChainSilhouetteIterator, ConstantColorShader, ConstantThicknessShader, \
    Operators, QuantitativeInvisibilityUP1D, SamplingShader, TrueUP1D
from logical_operators import NotUP1D

Operators.select(QuantitativeInvisibilityUP1D(1))
Operators.bidirectional_chain(ChainSilhouetteIterator(),
                              NotUP1D(QuantitativeInvisibilityUP1D(1)))
shaders_list = [
    SamplingShader(5.0),
    ConstantThicknessShader(3),
    ConstantColorShader(0.5, 0.5, 0.5, 1)
]
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 : sketchy_topology_preserved.py
#  Author   : Stephane Grabli
#  Date     : 04/08/2005
#  Purpose  : The topology of the strokes is built
#             so as to chain several times the same ViewEdge.
#             The topology of the objects is preserved

from ChainingIterators import pySketchyChainSilhouetteIterator
from freestyle import ConstantColorShader, IncreasingThicknessShader, Operators, \
    QuantitativeInvisibilityUP1D, SamplingShader, SmoothingShader, SpatialNoiseShader, \
    TextureAssignerShader, TrueUP1D

upred = QuantitativeInvisibilityUP1D(0)
Operators.select(upred)
Operators.bidirectional_chain(pySketchyChainSilhouetteIterator(3, True))
shaders_list = [
    SamplingShader(4),
    SpatialNoiseShader(20, 220, 2, True, True),
    IncreasingThicknessShader(4, 8),
    SmoothingShader(300, 0.05, 0, 0.2, 0, 0, 0, 0.5),
    ConstantColorShader(0.6, 0.2, 0.0),
    TextureAssignerShader(4),
]
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 : occluded_by_specific_object.py
#  Author   : Stephane Grabli
#  Date     : 04/08/2005
#  Purpose  : Draws only the lines that are occluded by a given object

from freestyle import ChainSilhouetteIterator, ConstantColorShader, ConstantThicknessShader, \
    Id, Operators, QuantitativeInvisibilityUP1D, SamplingShader, TrueUP1D
from PredicatesU1D import pyIsInOccludersListUP1D
from logical_operators import AndUP1D, NotUP1D

## the id of the occluder (use SHIFT+click on the ViewMap to
## retrieve ids)
id = Id(3, 0)
upred = AndUP1D(NotUP1D(QuantitativeInvisibilityUP1D(0)),
                pyIsInOccludersListUP1D(id))
Operators.select(upred)
Operators.bidirectional_chain(ChainSilhouetteIterator(), NotUP1D(upred))
shaders_list = [
    SamplingShader(5),
    ConstantThicknessShader(3),
    ConstantColorShader(0.3, 0.3, 0.3, 1),
]
Operators.create(TrueUP1D(), shaders_list)