alternative rendering method (rasterization) ; wip

ahb_cmd_new_step.py

@@ -64,6 +64,7 @@ class AHB_New_Step:
 		view = doc.addObject('TechDraw::DrawViewPart', 'View')
 		view.Perspective = False
 		view.addProperty("App::PropertyString", "Assembly_handbook_PreviousStepView", "Assembly_handbook")
+		view.addProperty("App::PropertyBool", "Assembly_handbook_RasterView", "Assembly_handbook")
 		if prev_view is None:
 			try:
 				workbench.techDrawExtensions.setCurrentViewDirection(view)

ahb_techdraw_extensions.py

@@ -94,112 +94,172 @@ class TechDrawExtensions:
 		for view in to_repaint:
 			#print("Repainting " + view.Name)
 			
+			page = self.getViewPage(view)
+			
 			view_cache = self.getViewCache(view)
 			view_cache.reset()
 			
 			doc = view.Document
 			
-			fast_rendering = False
+			if not 'Assembly_handbook_RasterView' in view.PropertiesList:
-			#try:
+				view.addProperty("App::PropertyBool", "Assembly_handbook_RasterView", "Assembly_handbook")
-			#	fast_rendering = view.Assembly_handbook_FastRendering
-			#except:
-			#	pass
 			
-			if view.CoarseView:
+			if view.Assembly_handbook_RasterView:
-				fast_rendering = True
+				print("Rasterizing view " + view.Label + "...")
+				imageName = view.Label + "_raster"
+				image = doc.getObject(imageName)
+				if image is None:
+					image = doc.addObject('TechDraw::DrawViewImage', view.Label + "_raster")
 				
-			selected_balloons = []
+				if not image in page.Views:
-			for obj in Gui.Selection.getSelection():
+					page.addView(image) 
-				if obj.TypeId == 'TechDraw::DrawViewBalloon' and obj.SourceView == view and 'Assembly_handbook_Source' in obj.PropertiesList:
-					selected_balloons.append(obj)
 				
-			#view.clearGeomFormats() # for an unknown reason, this will crash freecad
+				new_views_list = page.Views
+				new_views_list.remove(image)
+				view_idx = new_views_list.index(view)
+				new_views_list.insert(view_idx, image)
+				page.Views = new_views_list
 				
-			if not fast_rendering:
+				image_file_name = doc.FileName.replace('.FCStd', '') + '_raster/' + view.Name + '.png'
-				is_first_part = True
+				self.rasterizeView(view, image_file_name)
+				image.ImageFile = image_file_name # TODO: see if it's possible to set a relative path
+				image.recompute()
+			else:
+				fast_rendering = False
+				#try:
+				#	fast_rendering = view.Assembly_handbook_FastRendering
+				#except:
+				#	pass
 				
-				parts_to_paint = []
+				if view.CoarseView:
+					fast_rendering = True
 				
-				# repaint parts that are highlighted by selection
+				selected_balloons = []
-				if self.enable_selected_part_highlight:
+				for obj in Gui.Selection.getSelection():
-					for balloon in selected_balloons:
+					if obj.TypeId == 'TechDraw::DrawViewBalloon' and obj.SourceView == view and 'Assembly_handbook_Source' in obj.PropertiesList:
-						part = self.getBalloonSourcePart(balloon)
+						selected_balloons.append(obj)
-						if part in view.XSource:
+				
+				#view.clearGeomFormats() # for an unknown reason, this will crash freecad
+				
+				if not fast_rendering:
+					is_first_part = True
+				
+					parts_to_paint = []
+				
+					# repaint parts that are highlighted by selection
+					if self.enable_selected_part_highlight:
+						for balloon in selected_balloons:
+							part = self.getBalloonSourcePart(balloon)
+							if part in view.XSource:
+								parts_to_paint.append(part)
+							
+					# repaint parts that are new in this step (thick line)
+					prev_view = None
+					if 'Assembly_handbook_PreviousStepView' in view.PropertiesList:
+						prev_view = doc.getObject(view.Assembly_handbook_PreviousStepView)
+					for part in view.XSource:
+						if (prev_view is None or part not in prev_view.XSource) and part not in parts_to_paint:
 							parts_to_paint.append(part)
 				
-				# repaint parts that are new in this step (thick line)
+					# make sure the list is not empty, so that we reset all lines
-				prev_view = None
+					if len(parts_to_paint) == 0:
-				if 'Assembly_handbook_PreviousStepView' in view.PropertiesList:
+						parts_to_paint.append(None)
-					prev_view = doc.getObject(view.Assembly_handbook_PreviousStepView)
-				for part in view.XSource:
-					if (prev_view is None or part not in prev_view.XSource) and part not in parts_to_paint:
-						parts_to_paint.append(part)
 					
-				# make sure the list is not empty, so that we reset all lines
+					for part in parts_to_paint:
-				if len(parts_to_paint) == 0:
+						default_line_thickness = 0.05
-					parts_to_paint.append(None)
+						line_thickness = default_line_thickness
 						
-				for part in parts_to_paint:
+						default_color = (0.0, 0.0, 0.0) if fast_rendering else (0.5, 0.5, 0.5)
-					default_line_thickness = 0.05
+						color = default_color
-					line_thickness = default_line_thickness
 						
-					default_color = (0.0, 0.0, 0.0) if fast_rendering else (0.5, 0.5, 0.5)
+						if part is not None:
-					color = default_color
+							part_view = workbench.partsCache.getPart2DView(view, part)
 							
-					if part is not None:
+							center = self.computePartCenter(view, part)
-						part_view = workbench.partsCache.getPart2DView(view, part)
 						
-						center = self.computePartCenter(view, part)
+							if self.isNewPartInView(view, part):
+								line_thickness = 0.2
+								color = (0, 0, 0)
 							
-						if self.isNewPartInView(view, part):
+							if self.enable_selected_part_highlight:			
-							line_thickness = 0.2
+								for balloon in selected_balloons:
-							color = (0, 0, 0)
+									if part == self.getBalloonSourcePart(balloon):
+										color = (0.0, 0.85, 0.0) # selection highlighting
 						
-						if self.enable_selected_part_highlight:			
+						# iterate edges of actual view and highlight matching edges
-							for balloon in selected_balloons:
+						for edgeIdx in range(10000):
-								if part == self.getBalloonSourcePart(balloon):
+							hasEdge = False
-									color = (0.0, 0.85, 0.0) # selection highlighting
+							try:
+								edge = view.getEdgeByIndex(edgeIdx)
+								hasEdge = True
+							except:
+								pass
+							if not hasEdge:
+								break
 							
-					# iterate edges of actual view and highlight matching edges
+							is_edge_of_part = False
-					for edgeIdx in range(10000):
+							if part is not None and (not hasattr(edge.Curve, 'Degree') or edge.Curve.Degree == 1) and len(edge.Vertexes) == 2:
-						hasEdge = False
+								edgeData = [
-						try:
+									edge.Vertexes[0].X - center.x,
-							edge = view.getEdgeByIndex(edgeIdx)
+									edge.Vertexes[0].Y - center.y,
-							hasEdge = True
+									edge.Vertexes[1].X - center.x,
-						except:
+									edge.Vertexes[1].Y - center.y
-							pass
+								]
-						if not hasEdge:
+								v0 = App.Vector(edgeData[0], edgeData[1])
-							break
+								v1 = App.Vector(edgeData[2], edgeData[3])
 								
-						is_edge_of_part = False
+								for line in part_view.cached_lines:
-						if part is not None and (not hasattr(edge.Curve, 'Degree') or edge.Curve.Degree == 1) and len(edge.Vertexes) == 2:
+									l0 = App.Vector(line[0], line[1])
-							edgeData = [
+									l1 = App.Vector(line[2], line[3])
-								edge.Vertexes[0].X - center.x,
+									#d = abs(edgeData[0] - line[0]) + abs(edgeData[1] - line[1]) + abs(edgeData[2] - line[2]) + abs(edgeData[3] - line[3])
-								edge.Vertexes[0].Y - center.y,
+									d = v0.distanceToLineSegment(l0, l1).Length + v1.distanceToLineSegment(l0, l1).Length
-								edge.Vertexes[1].X - center.x,
+									if d < 0.01:
-								edge.Vertexes[1].Y - center.y
+										is_edge_of_part = True
-							]
+										break
-							v0 = App.Vector(edgeData[0], edgeData[1])
-							v1 = App.Vector(edgeData[2], edgeData[3])
 									
-							for line in part_view.cached_lines:
+							if is_edge_of_part:
-								l0 = App.Vector(line[0], line[1])
+								view.formatGeometricEdge(edgeIdx,1,line_thickness,color,True)
-								l1 = App.Vector(line[2], line[3])
+							elif is_first_part:
-								#d = abs(edgeData[0] - line[0]) + abs(edgeData[1] - line[1]) + abs(edgeData[2] - line[2]) + abs(edgeData[3] - line[3])
+								# reset edge format
-								d = v0.distanceToLineSegment(l0, l1).Length + v1.distanceToLineSegment(l0, l1).Length
+								view.formatGeometricEdge(edgeIdx,1,default_line_thickness,default_color,True)
-								if d < 0.01:
-									is_edge_of_part = True
-									break
 						
-						if is_edge_of_part:
+						is_first_part = False
-							view.formatGeometricEdge(edgeIdx,1,line_thickness,color,True)
-						elif is_first_part:
-							# reset edge format
-							view.formatGeometricEdge(edgeIdx,1,default_line_thickness,default_color,True)
 				
-					is_first_part = False
+						view.requestPaint()
 	
-					view.requestPaint()
+	def rasterizeView(self, view, image_file_name):
+		from pivy import coin
+		import os
+		
+		print('Rasterizing ' + view.Label + " to " + image_file_name + "...")
+		
+		dir = os.path.dirname(image_file_name)
+		if not os.path.exists(dir):
+			os.makedirs(dir)
+		
+		doc = App.newDocument('tmp_raster', hidden=False, temp=False)
+		for part in view.XSource:
+			link = doc.addObject('App::Link', part.Name)
+			link.Label = part.Label
+			if part.TypeId == 'App::Link':
+				link.LinkedObject = part.LinkedObject
+				link.Placement = part.Placement
+			else:
+				link.LinkedObject = part
+				
+		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()
+		
+		docView.saveImage(image_file_name, 4096, 4096, "#ffffff")
+		
+		App.closeDocument(doc.Name)
 	
 	def updateBalloonCursor(self, view):
 		selected_balloons = []
@@ -227,7 +287,7 @@ class TechDrawExtensions:
 		if doc != Gui.ActiveDocument.Document:
 			raise Exception("Current view is not for the same document as TechDraw view " + view.Name)
 		activeView = Gui.ActiveDocument.ActiveView
-		if str(type(activeView)) != "<class 'View3DInventorPy'>":
+		if str(type(activeView)) not in ["<class 'View3DInventorPy'>", "<class 'Gui.View3DInventor'>"]:
 			raise Exception("Current view is not a 3D view")
 		
 		cam = activeView.getCameraNode()
@@ -408,8 +468,11 @@ class TechDrawExtensions:
 		return None
 	
 	def forceRedrawPage(self, page, callback = None):
+		needPageUpdate = False
 		for view in page.Views:
 			if view.TypeId == 'TechDraw::DrawViewPart' and 'Assembly_handbook_PreviousStepView' in view.PropertiesList:
+				if 'Assembly_handbook_RasterView' not in view.PropertiesList or not view.Assembly_handbook_RasterView:
+					needPageUpdate = True
 				self.refreshView(view)
 			elif view.TypeId == 'TechDraw::DrawViewBalloon':
 				if view.ViewObject.Visibility:
@@ -425,7 +488,7 @@ class TechDrawExtensions:
 					view.ViewObject.Visibility = True
 					view.ViewObject.Visibility = False
 		
-		if page.KeepUpdated:
+		if page.KeepUpdated or not needPageUpdate:
 			for view in page.Views:
 				if view.TypeId != 'TechDraw::DrawViewPart':
 					view.recompute()