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)
# 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 : uniformpruning_zsort.py
# Authors : Fredo Durand, Stephane Grabli, Francois Sillion, Emmanuel Turquin
# Date : 08/04/2005
from freestyle import ChainSilhouetteIterator, ConstantColorShader, ConstantThicknessShader, IntegrationType, \
Operators, QuantitativeInvisibilityUP1D, SamplingShader, Stroke, StrokeTextureShader
from PredicatesB1D import pyZBP1D
from PredicatesU1D import pyDensityUP1D
Operators.select(QuantitativeInvisibilityUP1D(0))
Operators.bidirectional_chain(ChainSilhouetteIterator())
#Operators.sequential_split(pyVertexNatureUP0D(Nature.VIEW_VERTEX), 2)
Operators.sort(pyZBP1D())
shaders_list = [
StrokeTextureShader("smoothAlpha.bmp", Stroke.OPAQUE_MEDIUM, False),
ConstantThicknessShader(3),
SamplingShader(5.0),
ConstantColorShader(0, 0, 0, 1),
]
Operators.create(pyDensityUP1D(2, 0.05, IntegrationType.MEAN, 4), shaders_list)
#Operators.create(pyDensityFunctorUP1D(8, 0.03, pyGetInverseProjectedZF1D(), 0, 1, IntegrationType.MEAN), shaders_list)
def __init__(self, wsize, threshold, integration=IntegrationType.MEAN, sampling=2.0):
UnaryPredicate1D.__init__(self)
self._wsize = wsize
self._threshold = threshold
self._integration = integration
self._func = DensityF1D(self._wsize, self._integration, sampling)
self._func2 = DensityF1D(self._wsize, IntegrationType.MAX, sampling)
def __call__(self, inter):
c = self._func(inter)
m = self._func2(inter)
if c < self._threshold:
return 1
if m > 4*c:
if c < 1.5*self._threshold:
return 1
return 0
Operators.select(QuantitativeInvisibilityUP1D(0))
Operators.bidirectional_chain(ChainSilhouetteIterator(),NotUP1D(QuantitativeInvisibilityUP1D(0)))
Operators.select(pyHigherLengthUP1D(40))
## selects lines having a high anisotropic a priori density
Operators.select(pyHighDensityAnisotropyUP1D(0.3,4))
Operators.sort(pyLengthBP1D())
shaders_list = [
SamplingShader(2.0),
ConstantThicknessShader(2),
ConstantColorShader(0.2,0.2,0.25,1),
]
## uniform culling
Operators.create(pyDensityUP1D(3.0,2.0e-2, IntegrationType.MEAN, 0.1), shaders_list)
