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diff --git a/release/scripts/freestyle/style_modules/Functions1D.py b/release/scripts/freestyle/style_modules/Functions1D.py
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+++ b/release/scripts/freestyle/style_modules/Functions1D.py
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+# ##### BEGIN GPL LICENSE BLOCK #####
+#
+#  This program is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU General Public License
+#  as published by the Free Software Foundation; either version 2
+#  of the License, or (at your option) any later version.
+#
+#  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 : Functions1D.py
+#  Authors  : Fredo Durand, Stephane Grabli, Francois Sillion, Emmanuel Turquin 
+#  Date     : 08/04/2005
+#  Purpose  : Functions (functors) to be used for 1D elements
+
+from Freestyle import GetProjectedZF1D, IntegrationType, UnaryFunction1DDouble, integrate
+from Functions0D import pyDensityAnisotropyF0D, pyViewMapGradientNormF0D
+import string 
+
+class pyGetInverseProjectedZF1D(UnaryFunction1DDouble):
+	def __call__(self, inter):
+		func = GetProjectedZF1D()
+		z = func(inter)
+		return (1.0 - z)
+
+class pyGetSquareInverseProjectedZF1D(UnaryFunction1DDouble):
+	def __call__(self, inter):
+		func = GetProjectedZF1D()
+		z = func(inter)
+		return (1.0 - z*z)
+
+class pyDensityAnisotropyF1D(UnaryFunction1DDouble):
+	def __init__(self,level,  integrationType=IntegrationType.MEAN, sampling=2.0):
+		UnaryFunction1DDouble.__init__(self, integrationType)
+		self._func = pyDensityAnisotropyF0D(level)
+		self._integration = integrationType
+		self._sampling = sampling
+	def __call__(self, inter):
+		v = integrate(self._func, inter.pointsBegin(self._sampling), inter.pointsEnd(self._sampling), self._integration)
+		return v
+
+class pyViewMapGradientNormF1D(UnaryFunction1DDouble):
+	def __init__(self,l, integrationType, sampling=2.0):
+		UnaryFunction1DDouble.__init__(self, integrationType)
+		self._func = pyViewMapGradientNormF0D(l)
+		self._integration = integrationType
+		self._sampling = sampling
+	def __call__(self, inter):
+		v = integrate(self._func, inter.pointsBegin(self._sampling), inter.pointsEnd(self._sampling), self._integration)
+		return v