Added code to change colors of parts rendered in rasterized views (white with black lines)

ahb_raster_view.py

@@ -80,11 +80,32 @@ class RasterView:
 		p = point2d - offset
 		return self.image_x_dir_inv * p.x + self.image_y_dir_inv * p.y + self.image_z_dir_inv * p.z
 	
+	def _flatten_objects_tree(self, obj_list):
+		result = []
+		for obj in obj_list:
+			if obj.TypeId == 'Part::FeaturePython' and hasattr(obj, 'LinkedObject'): # variant link
+				result.extend(self._flatten_objects_tree(obj.Group))
+			elif obj.TypeId in ['App::Link']:
+				result.extend(self._flatten_objects_tree([obj.LinkedObject]))
+			elif obj.TypeId in ['App::Part', 'App::DocumentObjectGroup']:
+				result.extend(self._flatten_objects_tree(obj.Group))
+			elif obj.TypeId in ['Part::Feature', 'Part::FeaturePython', 'PartDesign::Body', 'PartDesign::CoordinateSystem', 'PartDesign::Line', 'Part::Mirroring', 'Part::Cut']:
+				result.append(obj)
+				if hasattr(obj, 'Group'):
+					result.extend(self._flatten_objects_tree(obj.Group))
+			
+		return result
+	
+	def _should_render(self, obj):
+		return obj.TypeId in ['Part::Feature', 'Part::FeaturePython', 'PartDesign::Body', 'Part::Mirroring', 'Part::Cut']
+		
 	def render(self):
 		from pivy import coin
 		import os
 		from PIL import Image, ImageDraw, ImageChops
 		
+		workbench = Gui.getWorkbench("AssemblyHandbookWorkbench") #: :type workbench: AssemblyHandbookWorkbench
+		
 		view = self.source_view
 		
 		self.init_image()
@@ -96,34 +117,85 @@ class RasterView:
 			os.makedirs(dir)
 			
 		doc = App.newDocument('tmp_raster', hidden=False, temp=False)
-		for part in view.XSource:
+			
-			link = doc.addObject('App::Link', part.Name)
+		objects_to_reset = {}
-			link.Label = part.Label
+		try:
-			if part.TypeId == 'App::Link':
+			for part in view.XSource:
-				link.LinkedObject = part.LinkedObject
+				link = doc.addObject('App::Link', part.Name)
-				link.Placement = part.Placement
+				link.Label = part.Label
-			elif part.TypeId == 'Part::FeaturePython' and hasattr(part, 'LinkedObject'): # variant link
+				if part.TypeId == 'App::Link':
-				link.LinkedObject = part.LinkedObject
+					link.LinkedObject = part.LinkedObject
-				link.Placement = part.Placement
+					link.Placement = part.Placement
-			else:
+				elif part.TypeId == 'Part::FeaturePython' and hasattr(part, 'LinkedObject'): # variant link
-				link.LinkedObject = part
+					link.LinkedObject = part.LinkedObject
-				
+					link.Placement = part.Placement
-		docView = Gui.getDocument(doc.Name).mdiViewsOfType('Gui::View3DInventor')[0]
+				else:
-		
+					link.LinkedObject = part
-		cam = docView.getCameraNode()
+					
-		
+				new_part = workbench.techDrawExtensions.isNewPartInView(view, part)
-		rot = coin.SbRotation(coin.SbVec3f(1,0,0), coin.SbVec3f(view.XDirection.x,view.XDirection.y,view.XDirection.z))
+				
-		rot *= coin.SbRotation(coin.SbVec3f(0,0,1), coin.SbVec3f(view.Direction.x,view.Direction.y,view.Direction.z))
+				link.ViewObject.OverrideMaterial = True
-		cam.orientation.setValue(rot)
+				link.ViewObject.ShapeMaterial.DiffuseColor = (0.0, 0.0, 0.0, 0.0) if new_part else (0.5, 0.5, 0.5, 0.0) # this actually changes the line color
-		
+				
-		docView.fitAll()
+				# in current version of freecad, link override material does not allow to override all material properties, for example emissive color, so we have to change material of the linked object
-		
+				for obj in self._flatten_objects_tree([link]):
-		viewVolume = cam.getViewVolume(0.0)
+					if obj in objects_to_reset.keys():
-		self.image_view.Assembly_handbook_ViewVolumeWidth = viewVolume.getWidth()
+						continue
-		self.image_view.Assembly_handbook_ViewVolumeHeight = viewVolume.getHeight()
+					
-		self.image_view.Assembly_handbook_ViewVolumeDepth = viewVolume.getDepth()
+					if self._should_render(obj):
-		
+						objects_to_reset[obj] = (
-		docView.saveImage(self.image_file_name, 4096, 4096, "#ffffff")
+							obj.ViewObject.LineColor,
+							obj.ViewObject.ShapeMaterial.AmbientColor,
+							obj.ViewObject.ShapeMaterial.DiffuseColor,
+							obj.ViewObject.ShapeMaterial.SpecularColor,
+							obj.ViewObject.ShapeMaterial.EmissiveColor,
+							obj.ViewObject.LineWidth
+						)
+						
+						obj.ViewObject.LineColor = (0.0, 0.0, 0.0, 0.0)
+						obj.ViewObject.ShapeMaterial.AmbientColor = (0.0, 0.0, 0.0, 0.0)
+						obj.ViewObject.ShapeMaterial.DiffuseColor = (0.0, 0.0, 0.0, 0.0)
+						obj.ViewObject.ShapeMaterial.SpecularColor = (0.0, 0.0, 0.0, 0.0)
+						obj.ViewObject.ShapeMaterial.EmissiveColor = (1.0, 1.0, 1.0, 0.0)
+						
+						# We need to set two different values otherwise freecad does not always update LineWidth of sub-elements
+						obj.ViewObject.LineWidth = 1.0						
+						obj.ViewObject.LineWidth = 2.0
+					else:
+						objects_to_reset[obj] = (
+							obj.ViewObject.Visibility,
+						)
+						
+						obj.ViewObject.Visibility = False
+					
+			docView = Gui.getDocument(doc.Name).mdiViewsOfType('Gui::View3DInventor')[0]
+			
+			cam = docView.getCameraNode()
+			
+			rot = coin.SbRotation(coin.SbVec3f(1,0,0), coin.SbVec3f(view.XDirection.x,view.XDirection.y,view.XDirection.z))
+			rot *= coin.SbRotation(coin.SbVec3f(0,0,1), coin.SbVec3f(view.Direction.x,view.Direction.y,view.Direction.z))
+			cam.orientation.setValue(rot)
+			
+			docView.fitAll()
+			
+			viewVolume = cam.getViewVolume(0.0)
+			self.image_view.Assembly_handbook_ViewVolumeWidth = viewVolume.getWidth()
+			self.image_view.Assembly_handbook_ViewVolumeHeight = viewVolume.getHeight()
+			self.image_view.Assembly_handbook_ViewVolumeDepth = viewVolume.getDepth()
+			
+			docView.saveImage(self.image_file_name, 4096, 4096, "#ffffff")
+			
+		finally:
+			for obj, props in objects_to_reset.items():
+				if self._should_render(obj):
+					obj.ViewObject.LineColor = props[0]
+					obj.ViewObject.ShapeMaterial.AmbientColor = props[1]
+					obj.ViewObject.ShapeMaterial.DiffuseColor = props[2]
+					obj.ViewObject.ShapeMaterial.SpecularColor = props[3]
+					obj.ViewObject.ShapeMaterial.EmissiveColor = props[4]
+					obj.ViewObject.LineWidth = props[5]
+				else:
+					obj.ViewObject.Visibility = props[0]
 		
 		with Image.open(self.image_file_name) as img:
 			original_size = img.size