1 files changed, 89 insertions, 0 deletions
diff --git a/release/scripts/freestyle/style_modules/sketchy_topology_broken.py b/release/scripts/freestyle/style_modules/sketchy_topology_broken.py
new file mode 100755
index 00000000000..9ec0cffcfec
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+++ b/release/scripts/freestyle/style_modules/sketchy_topology_broken.py
@@ -0,0 +1,89 @@
+#
+#  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.
+#
+#############################################################################  
+#
+#  Copyright (C) : Please refer to the COPYRIGHT file distributed 
+#  with this source distribution. 
+#
+#  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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+#
+#############################################################################
+
+from freestyle_init import *
+from logical_operators import *
+from ChainingIterators import *
+from shaders import *
+
+## Backbone stretcher that leaves cusps intact to avoid cracks
+class pyBackboneStretcherNoCuspShader(StrokeShader):
+	def __init__(self, l):
+		StrokeShader.__init__(self)
+		self._l = l
+	def getName(self):
+		return "pyBackboneStretcherNoCuspShader"
+	def shade(self, stroke):
+		it0 = stroke.strokeVerticesBegin()
+		it1 = StrokeVertexIterator(it0)
+		it1.increment()
+		itn = stroke.strokeVerticesEnd()
+		itn.decrement()
+		itn_1 = StrokeVertexIterator(itn)
+		itn_1.decrement()
+		v0 = it0.getObject()
+		v1 = it1.getObject()
+		if((v0.getNature() & Nature.CUSP == 0) and (v1.getNature() & Nature.CUSP == 0)):
+			p0 = v0.getPoint()
+			p1 = v1.getPoint()
+			d1 = p0-p1
+			d1.normalize()
+			newFirst = p0+d1*float(self._l)
+			v0.setPoint(newFirst)
+		else:
+			print("got a v0 cusp")
+		vn_1 = itn_1.getObject()
+		vn = itn.getObject()
+		if((vn.getNature() & Nature.CUSP == 0) and (vn_1.getNature() & Nature.CUSP == 0)):
+			pn = vn.getPoint()
+			pn_1 = vn_1.getPoint()
+			dn = pn-pn_1
+			dn.normalize()
+			newLast = pn+dn*float(self._l)	
+			vn.setPoint(newLast)
+		else:
+			print("got a vn cusp")
+
+
+Operators.select(QuantitativeInvisibilityUP1D(0))
+## Chain 3 times each ViewEdge indpendantly from the 
+## initial objects topology
+Operators.bidirectionalChain(pySketchyChainingIterator(3))
+shaders_list = 	[
+		SamplingShader(4),
+		SpatialNoiseShader(6, 120, 2, 1, 1), 
+		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)