A follow-up to Patch D623: minor code updates and style cleanup.

release/scripts/freestyle/modules/freestyle/predicates.py

@@ -46,13 +46,13 @@ from _freestyle import (
 # constructs for predicate definition in Python
 from freestyle.types import (
     BinaryPredicate1D,
+    Id,
     IntegrationType,
+    Interface0DIterator,
     Nature,
     TVertex,
     UnaryPredicate0D,
     UnaryPredicate1D,
-    Id,
-    Interface0DIterator,
     )
 from freestyle.functions import (
     Curvature2DAngleF0D,
@@ -160,7 +160,7 @@ class AndUP1D(UnaryPredicate1D):
         self.predicates = predicates
         # there are cases in which only one predicate is supplied (in the parameter editor)
         if len(self.predicates) < 1:
-            raise ValueError("Expected two or more UnaryPredicate1D, got ", len(predicates))
+            raise ValueError("Expected one or more UnaryPredicate1D, got ", len(predicates))
 
     def __call__(self, inter):
         return all(pred(inter) for pred in self.predicates)
@@ -172,7 +172,7 @@ class OrUP1D(UnaryPredicate1D):
         self.predicates = predicates
         # there are cases in which only one predicate is supplied (in the parameter editor)
         if len(self.predicates) < 1:
-            raise ValueError("Expected two or more UnaryPredicate1D, got ", len(predicates))
+            raise ValueError("Expected one or more UnaryPredicate1D, got ", len(predicates))
 
     def __call__(self, inter):
         return any(pred(inter) for pred in self.predicates)

release/scripts/freestyle/modules/freestyle/utils.py

@@ -191,12 +191,21 @@ def iter_material_value(stroke, func, attribute):
     for svert in it:
         material = func(it)
         # main
-        if attribute == 'DIFF':
-            value = rgb_to_bw(*material.diffuse[0:3])
+        if attribute == 'LINE':
+            value = rgb_to_bw(*material.line[0:3])
         elif attribute == 'ALPHA':
-            value = material.diffuse[3]
+            value = material.line[3]
+        elif attribute == 'DIFF':
+            value = rgb_to_bw(*material.diffuse[0:3])
         elif attribute == 'SPEC':
             value = rgb_to_bw(*material.specular[0:3])
+        # line seperate
+        elif attribute == 'LINE_R':
+            value = material.line[0]
+        elif attribute == 'LINE_G':
+            value = material.line[1]
+        elif attribute == 'LINE_B':
+            value = material.line[2]
         # diffuse seperate
         elif attribute == 'DIFF_R':
             value = material.diffuse[0]

release/scripts/freestyle/modules/parameter_editor.py

@@ -207,13 +207,13 @@ class ThicknessBlenderMixIn(ThicknessModifierMixIn):
         v = self.blend(outer + inner, v)
 
         # Part 1: blend
-        if self.position == "CENTER":
+        if self.position == 'CENTER':
             outer = inner = v * 0.5
-        elif self.position == "INSIDE":
+        elif self.position == 'INSIDE':
             outer, inner = 0, v
-        elif self.position == "OUTSIDE":
+        elif self.position == 'OUTSIDE':
             outer, inner = v, 0
-        elif self.position == "RELATIVE":
+        elif self.position == 'RELATIVE':
             outer, inner = v * self.ratio, v - (v * self.ratio)
         else:
             raise ValueError("unknown thickness position: " + position)
@@ -415,10 +415,10 @@ class ColorMaterialShader(ColorRampModifier):
         if not self.use_ramp and self.attribute in attributes:
             for svert in it:
                 material = self.func(it)
-                if self.attribute == 'DIFF':
-                    b = material.diffuse[0:3]
-                elif self.attribute == 'LINE':
+                if self.attribute == 'LINE':
                     b = material.line[0:3] 
+                elif self.attribute == 'DIFF':
+                    b = material.diffuse[0:3]
                 else:
                     b = material.specular[0:3]
                 a = svert.attribute.color
@@ -706,10 +706,10 @@ class DashedLineShader(StrokeShader):
     def shade(self, stroke):
         start = 0.0  # 2D curvilinear length
         visible = True
-        """ The extra 'sampling' term is added below, because the
-        visibility attribute of the i-th vertex refers to the
-        visibility of the stroke segment between the i-th and
-        (i+1)-th vertices. """
+        # The extra 'sampling' term is added below, because the
+        # visibility attribute of the i-th vertex refers to the
+        # visibility of the stroke segment between the i-th and
+        # (i+1)-th vertices.
         sampling = 1.0
         it = stroke.stroke_vertices_begin(sampling)
         pattern_cycle = cycle(self.pattern)