def addComponent(self, shape, name, color): """Add new shape to top assembly of self.doc & return uid""" labels = TDF_LabelSequence() shape_tool = XCAFDoc_DocumentTool_ShapeTool(self.doc.Main()) color_tool = XCAFDoc_DocumentTool_ColorTool(self.doc.Main()) shape_tool.GetShapes(labels) try: rootLabel = labels.Value(1) # First label at root except RuntimeError as e: print(e) return newLabel = shape_tool.AddComponent(rootLabel, shape, True) # Get referrred label and apply color to it refLabel = TDF_Label() # label of referred shape isRef = shape_tool.GetReferredShape(newLabel, refLabel) if isRef: color_tool.SetColor(refLabel, color, XCAFDoc_ColorGen) self.setLabelName(newLabel, name) logger.info('Part %s added to root label', name) shape_tool.UpdateAssemblies() self.doc = self.doc_linter() # This gets color to work self.parse_doc() entry = newLabel.EntryDumpToString() uid = entry + '.0' # this should work OK since it is new return uid
def replaceShape(self, uid, modshape): """Replace referred shape with modshape of component with uid The modified part is a located instance of a referred shape stored at doc root. The user doesn't have access to this root shape. In order to modify this referred shape, the modified instance shape is moved back to the original location at doc root, then saved.""" shape_tool = XCAFDoc_DocumentTool_ShapeTool(self.doc.Main()) color_tool = XCAFDoc_DocumentTool_ColorTool(self.doc.Main()) # shape is stored at label entry '0:1:1:n' n = int(self.label_dict[uid]['ref_entry'].split(':')[-1]) color = self.part_dict[uid]['color'] labels = TDF_LabelSequence() shape_tool.GetShapes(labels) label = labels.Value(n) # nth label at root # If shape instance was moved from its root location to its instance # location, 'unmove' it to relocate it back to the root location. if self.part_dict[uid]['loc']: modshape.Move(self.part_dict[uid]['loc'].Inverted()) # Replace oldshape in self.doc shape_tool.SetShape(label, modshape) color_tool.SetColor(modshape, color, XCAFDoc_ColorGen) shape_tool.UpdateAssemblies() self.parse_doc() # generate new part_dict
def saveStep(self): """Export self.doc to STEP file.""" prompt = 'Choose filename for step file.' fnametuple = QFileDialog.getSaveFileName( None, prompt, './', "STEP files (*.stp *.STP *.step)") fname, _ = fnametuple if not fname: print("Save step cancelled.") return # Reconstruct XCAFDoc related code from stepXD.StepImporter labels = TDF_LabelSequence() shape_tool = XCAFDoc_DocumentTool_ShapeTool(self.doc.Main()) shape_tool.GetShapes(labels) logger.info('Number of labels at root : %i', labels.Length()) try: rootlabel = labels.Value(1) # First label at root except RuntimeError: return name = rootlabel.GetLabelName() logger.info('Name of root label: %s', name) isAssy = shape_tool.IsAssembly(rootlabel) logger.info("First label at root holds an assembly? %s", isAssy) # Modify self.doc by adding active part to rootlabel. #Standard_Boolean expand = Standard_False; //default #TDF_Label aLabel = myAssembly->AddComponent (aShape [,expand]); newLabel = shape_tool.AddComponent(rootlabel, self.activePart, True) #set a name to newlabel (as a reminder using OCAF), use: #TCollection_ExtendedString aName ...; #// contains the desired name for this Label (ASCII) #TDataStd_Name::Set (aLabel, aName); newName = TCollection_ExtendedString( self._nameDict[self.activePartUID]) TDataStd_Name.Set(newLabel, newName) logger.info('Name of new part: %s', newName) #myAssembly->UpdateAssemblies(); shape_tool.UpdateAssemblies() # initialize the STEP exporter step_writer = STEPCAFControl_Writer() # transfer shapes and write file step_writer.Transfer(self.doc) status = step_writer.Write(fname) assert status == IFSelect_RetDone
def change_label_name(self, uid, name): """Change the name of component with uid.""" entry, _ = uid.split('.') entry_parts = entry.split(':') if len(entry_parts) == 4: # first label at root j = 1 k = None elif len(entry_parts) == 5: # part is a component of label at root j = int(entry_parts[3]) # number of label at root k = int(entry_parts[4]) # component number shape_tool = XCAFDoc_DocumentTool_ShapeTool(self.doc.Main()) color_tool = XCAFDoc_DocumentTool_ColorTool(self.doc.Main()) labels = TDF_LabelSequence() # labels at root of self.doc shape_tool.GetShapes(labels) label = labels.Value(j) comps = TDF_LabelSequence() # Components of root_label subchilds = False is_assy = shape_tool.GetComponents(label, comps, subchilds) target_label = comps.Value(k) self.setLabelName(target_label, name) shape_tool.UpdateAssemblies() print(f"Name {name} set for part with uid = {uid}.") self.parse_doc()
class StepAnalyzer(): """A class that analyzes the structure of an OCAF document.""" def __init__(self, document=None, filename=None): """Supply one or the other: document or STEP filename.""" self.uid = 1 self.indent = 0 self.output = "" self.fname = filename if filename: self.doc = self.read_file(filename) elif document: self.doc = document self.shape_tool = XCAFDoc_DocumentTool_ShapeTool(self.doc.Main()) else: print("Supply one or the other: document or STEP filename.") def read_file(self, fname): """Read STEP file and return <TDocStd_Document>.""" # Create the application, empty document and shape_tool doc = TDocStd_Document(TCollection_ExtendedString("STEP")) app = XCAFApp_Application_GetApplication() app.NewDocument(TCollection_ExtendedString("MDTV-XCAF"), doc) self.shape_tool = XCAFDoc_DocumentTool_ShapeTool(doc.Main()) self.shape_tool.SetAutoNaming(True) # Read file and return populated doc step_reader = STEPCAFControl_Reader() step_reader.SetColorMode(True) step_reader.SetLayerMode(True) step_reader.SetNameMode(True) step_reader.SetMatMode(True) status = step_reader.ReadFile(fname) if status == IFSelect_RetDone: step_reader.Transfer(doc) return doc def dump(self): """Return assembly structure in indented outline form. Format of lines: Component Name [entry] => Referred Label Name [entry] Components are shown indented w/r/t line above.""" if self.fname: self.output += f"Assembly structure of file: {self.fname}\n\n" else: self.output += "Assembly structure of doc:\n\n" self.indent = 0 # Find root label of step doc labels = TDF_LabelSequence() self.shape_tool.GetShapes(labels) nbr = labels.Length() rootlabel = labels.Value(1) # First label at root # Get information from root label name = rootlabel.GetLabelName() entry = rootlabel.EntryDumpToString() is_assy = self.shape_tool.IsAssembly(rootlabel) if is_assy: # If 1st label at root holds an assembly, it is the Top Assy. # Through this label, the entire assembly is accessible. # There is no need to explicitly examine other labels at root. self.output += f"{self.uid}\t[{entry}] {name}\t" self.uid += 1 self.indent += 2 top_comps = TDF_LabelSequence() # Components of Top Assy subchilds = False is_assy = self.shape_tool.GetComponents(rootlabel, top_comps, subchilds) self.output += f"Number of labels at root = {nbr}\n" if top_comps.Length(): self.find_components(top_comps) return self.output def find_components(self, comps): """Discover components from comps (LabelSequence) of an assembly. Components of an assembly are, by definition, references which refer to either a shape or another assembly. Components are essentially 'instances' of the referred shape or assembly, and carry a location vector specifing the location of the referred shape or assembly. """ for j in range(comps.Length()): c_label = comps.Value(j + 1) # component label <class 'TDF_Label'> c_name = c_label.GetLabelName() c_entry = c_label.EntryDumpToString() ref_label = TDF_Label() # label of referred shape (or assembly) is_ref = self.shape_tool.GetReferredShape(c_label, ref_label) if is_ref: # just in case all components are not references ref_entry = ref_label.EntryDumpToString() ref_name = ref_label.GetLabelName() indent = "\t" * self.indent self.output += f"{self.uid}{indent}[{c_entry}] {c_name}" self.output += f" => [{ref_entry}] {ref_name}\n" self.uid += 1 if self.shape_tool.IsAssembly(ref_label): self.indent += 1 ref_comps = TDF_LabelSequence() # Components of Assy subchilds = False _ = self.shape_tool.GetComponents(ref_label, ref_comps, subchilds) if ref_comps.Length(): self.find_components(ref_comps) self.indent -= 1
def load_stp_undr_top(self): """Paste step root label under 1st label at self.doc root Add a simple component to the first label at self.doc root. Set the component name to be the name of the step file. Then assign the label of the referred shape to 'targetLabel'. Finally, copy step root label onto 'targetLabel'. This works when copying file 'as1-oc-214.stp' to 0:1:1:2 (n=2) but does not get part color at higher values of n. Also doesn't work with file 'as1_pe_203.stp' loaded at any value of n. ??? """ prompt = 'Select STEP file to import' fnametuple = QFileDialog.getOpenFileName( None, prompt, './', "STEP files (*.stp *.STP *.step)") fname, _ = fnametuple # fname = /path/to/some/filename.ext base = os.path.basename(fname) # filename.ext filename, ext = os.path.splitext(base) logger.debug("Load file name: %s", fname) if not fname: print("Load step cancelled") return # Get the step data tmodel = TreeModel("STEP") step_shape_tool = tmodel.shape_tool step_color_tool = tmodel.color_tool step_reader = STEPCAFControl_Reader() step_reader.SetColorMode(True) step_reader.SetLayerMode(True) step_reader.SetNameMode(True) step_reader.SetMatMode(True) status = step_reader.ReadFile(fname) if status == IFSelect_RetDone: logger.info("Transfer doc to STEPCAFControl_Reader") step_reader.Transfer(tmodel.doc) # Delint tmodel.doc & make new tools step_doc = self.doc_linter(tmodel.doc) step_shape_tool = XCAFDoc_DocumentTool_ShapeTool(step_doc.Main()) step_color_tool = XCAFDoc_DocumentTool_ColorTool(step_doc.Main()) # Get root label of step data step_labels = TDF_LabelSequence() step_shape_tool.GetShapes(step_labels) steprootLabel = step_labels.Value(1) # Make a simple box and add it as a component myBody = BRepPrimAPI_MakeBox(4, 4, 4).Shape() _ = self.addComponent(myBody, filename, Quantity_ColorRGBA()) step_shape_tool.UpdateAssemblies() # Get target label of self.doc labels = TDF_LabelSequence() # labels at root shape_tool = XCAFDoc_DocumentTool_ShapeTool(self.doc.Main()) color_tool = XCAFDoc_DocumentTool_ColorTool(self.doc.Main()) shape_tool.GetShapes(labels) n = labels.Length() # number of labels at root print(n) targetLabel = labels.Value(n) # of ref shape of comp just added # Copy source label to target label self.copy_label(steprootLabel, targetLabel) shape_tool.UpdateAssemblies() # Repair self.doc by cycling through save/load self.doc = self.doc_linter() # Build new self.part_dict & tree view self.parse_doc()
def parse_doc(self): """Generate new part_dict & label_dict. part_dict (dict of dicts) is used primarily for 3D display part_dict = {uid: {'shape': , 'name': , 'color': , 'loc': }} label_dict (dict of dicts) is used primarily for tree view display label_dict = {uid: {'entry': , 'name': , 'parent_uid': , 'ref_entry': , 'is_assy': }} """ # Initialize dictionaries & list self._share_dict = {'0:1:1': 0} # {entry: ser_nbr} self.part_dict = {} self.label_dict = {} # Temporary use during unpacking self.parent_uid_stack = [] # uid of parent (topmost first) self.assy_entry_stack = ['0:1:1'] # [entries of containing assemblies] self.assy_loc_stack = [] # applicable <TopLoc_Location> locations shape_tool = XCAFDoc_DocumentTool_ShapeTool(self.doc.Main()) color_tool = XCAFDoc_DocumentTool_ColorTool(self.doc.Main()) # Find root label of self.doc labels = TDF_LabelSequence() shape_tool.GetShapes(labels) root_label = labels.Value(1) # First label at root nbr = labels.Length() # number of labels at root logger.debug('Number of labels at doc root : %i', nbr) # Get root label information # The first label at root holds an assembly, it is the Top Assy. # Through this label, the entire assembly is accessible. # There is no need to explicitly examine other labels at root. root_name = root_label.GetLabelName() root_entry = root_label.EntryDumpToString() root_uid = self.get_uid_from_entry(root_entry) loc = shape_tool.GetLocation(root_label) # <TopLoc_Location> self.assy_loc_stack.append(loc) self.assy_entry_stack.append(root_entry) self.label_dict = { root_uid: { 'entry': root_entry, 'name': root_name, 'parent_uid': None, 'ref_entry': None, 'is_assy': True } } self.parent_uid_stack.append(root_uid) top_comps = TDF_LabelSequence() # Components of Top Assy subchilds = False is_assy = shape_tool.GetComponents(root_label, top_comps, subchilds) if top_comps.Length(): # if is_assy: logger.debug("") logger.debug("Parsing components of label entry %s)", root_entry) self.parse_components(top_comps, shape_tool, color_tool) else: print("Something is wrong.")
def read_file(self): """Build self.tree (treelib.Tree()) containing CAD data read from a step file. Each node of self.tree contains the following: (Name, UID, ParentUID, {Data}) where the Data keys are: 'a' (isAssy?), 'l' (TopLoc_Location), 'c' (Quantity_Color), 's' (TopoDS_Shape) """ logger.info("Reading STEP file") doc = TDocStd_Document(TCollection_ExtendedString("STEP")) # Create the application app = XCAFApp_Application_GetApplication() app.NewDocument(TCollection_ExtendedString("MDTV-CAF"), doc) # Get root shapes shape_tool = XCAFDoc_DocumentTool_ShapeTool(doc.Main()) shape_tool.SetAutoNaming(True) self.color_tool = XCAFDoc_DocumentTool_ColorTool(doc.Main()) layer_tool = XCAFDoc_DocumentTool_LayerTool(doc.Main()) l_materials = XCAFDoc_DocumentTool_MaterialTool(doc.Main()) step_reader = STEPCAFControl_Reader() step_reader.SetColorMode(True) step_reader.SetLayerMode(True) step_reader.SetNameMode(True) step_reader.SetMatMode(True) status = step_reader.ReadFile(self.filename) if status == IFSelect_RetDone: logger.info("Transfer doc to STEPCAFControl_Reader") step_reader.Transfer(doc) # Test round trip by writing doc back to another file. logger.info("Doing a 'short-circuit' Round Trip test") doctype = type(doc) # <class 'OCC.Core.TDocStd.TDocStd_Document'> logger.info(f"Writing {doctype} back to another STEP file") self.testRTStep(doc) # Save doc to file (for educational purposes) (not working yet) logger.debug("Saving doc to file") savefilename = TCollection_ExtendedString('../doc.txt') app.SaveAs(doc, savefilename) labels = TDF_LabelSequence() color_labels = TDF_LabelSequence() shape_tool.GetShapes(labels) self.shape_tool = shape_tool logger.info('Number of labels at root : %i' % labels.Length()) try: label = labels.Value(1) # First label at root except RuntimeError: return name = self.getName(label) logger.info('Name of root label: %s' % name) isAssy = shape_tool.IsAssembly(label) logger.info("First label at root holds an assembly? %s" % isAssy) if isAssy: # If first label at root holds an assembly, it is the Top Assembly. # Through this label, the entire assembly is accessible. # No need to examine other labels at root explicitly. topLoc = TopLoc_Location() topLoc = shape_tool.GetLocation(label) self.assyLocStack.append(topLoc) entry = label.EntryDumpToString() logger.debug("Entry: %s" % entry) logger.debug("Top assy name: %s" % name) # Create root node for top assy newAssyUID = self.getNewUID() self.tree.create_node(name, newAssyUID, None, { 'a': True, 'l': None, 'c': None, 's': None }) self.assyUidStack.append(newAssyUID) topComps = TDF_LabelSequence() # Components of Top Assy subchilds = False isAssy = shape_tool.GetComponents(label, topComps, subchilds) logger.debug("Is Assembly? %s" % isAssy) logger.debug("Number of components: %s" % topComps.Length()) logger.debug("Is Reference? %s" % shape_tool.IsReference(label)) if topComps.Length(): self.findComponents(label, topComps) else: # Labels at root can hold solids or compounds (which are 'crude' assemblies) # Either way, we will need to create a root node in self.tree newAssyUID = self.getNewUID() self.tree.create_node(os.path.basename(self.filename), newAssyUID, None, { 'a': True, 'l': None, 'c': None, 's': None }) self.assyUidStack = [newAssyUID] for j in range(labels.Length()): label = labels.Value(j + 1) name = self.getName(label) isAssy = shape_tool.IsAssembly(label) logger.debug("Label %i is assembly?: %s" % (j + 1, isAssy)) shape = shape_tool.GetShape(label) color = self.getColor(shape) isSimpleShape = self.shape_tool.IsSimpleShape(label) logger.debug("Is Simple Shape? %s" % isSimpleShape) shapeType = shape.ShapeType() logger.debug("The shape type is: %i" % shapeType) if shapeType == 0: logger.debug( "The shape type is OCC.Core.TopAbs.TopAbs_COMPOUND") topo = TopologyExplorer(shape) #topo = aocutils.topology.Topo(shape) logger.debug("Nb of compounds : %i" % topo.number_of_compounds()) logger.debug("Nb of solids : %i" % topo.number_of_solids()) logger.debug("Nb of shells : %i" % topo.number_of_shells()) newAssyUID = self.getNewUID() for i, solid in enumerate(topo.solids()): name = "P%s" % str(i + 1) self.tree.create_node(name, self.getNewUID(), self.assyUidStack[-1], { 'a': False, 'l': None, 'c': color, 's': solid }) elif shapeType == 2: logger.debug( "The shape type is OCC.Core.TopAbs.TopAbs_SOLID") self.tree.create_node(name, self.getNewUID(), self.assyUidStack[-1], { 'a': False, 'l': None, 'c': color, 's': shape }) elif shapeType == 3: logger.debug( "The shape type is OCC.Core.TopAbs.TopAbs_SHELL") self.tree.create_node(name, self.getNewUID(), self.assyUidStack[-1], { 'a': False, 'l': None, 'c': color, 's': shape }) return True