You can now parametrically create profile / layer based objects of any type, no longer limited to walls, slabs, etc.

src/blenderbim/blenderbim/bim/module/model/product.py

@@ -23,21 +23,22 @@ class AddTypeInstance(bpy.types.Operator):
     def _execute(self, context):
         tprops = context.scene.BIMTypeProperties
         ifc_class = self.ifc_class or tprops.ifc_class
-        relating_type = self.relating_type or tprops.relating_type
-        if not ifc_class or not relating_type:
+        relating_type_id = self.relating_type or tprops.relating_type
+        if not ifc_class or not relating_type_id:
             return {"FINISHED"}
         self.file = IfcStore.get_file()
         instance_class = ifcopenshell.util.type.get_applicable_entities(ifc_class, self.file.schema)[0]
-        if ifc_class == "IfcWallType":
-            obj = wall.DumbWallGenerator(self.file.by_id(int(relating_type))).generate()
+        relating_type = self.file.by_id(int(relating_type_id))
+        material = ifcopenshell.util.element.get_material(relating_type)
+        if material.is_a("IfcMaterialProfileSet"):
+            obj = profile.DumbProfileGenerator(relating_type).generate()
             if obj:
                 return {"FINISHED"}
-        elif ifc_class == "IfcSlabType":
-            obj = slab.DumbSlabGenerator(self.file.by_id(int(relating_type))).generate()
-            if obj:
-                return {"FINISHED"}
-        elif ifc_class in ["IfcColumnType", "IfcBeamType", "IfcMemberType"]:
-            obj = profile.DumbProfileGenerator(self.file.by_id(int(relating_type))).generate()
+        elif material.is_a("IfcMaterialLayerSet"):
+            if ifc_class in ["IfcSlabType", "IfcRoofType", "IfcRampType", "IfcPlateType"]:
+                obj = slab.DumbSlabGenerator(relating_type).generate()
+            else:
+                obj = wall.DumbWallGenerator(relating_type).generate()
             if obj:
                 return {"FINISHED"}
         # A cube

src/blenderbim/blenderbim/bim/module/model/profile.py

@@ -137,25 +137,17 @@ class DumbProfileGenerator:
         if self.collection_obj and self.collection_obj.BIMObjectProperties.ifc_definition_id:
             obj.location[2] = self.collection_obj.location[2]
         self.collection.objects.link(obj)
-        if self.relating_type.is_a("IfcColumnType"):
-            obj.name = "Column"
-            bpy.ops.bim.assign_class(
-                obj=obj.name, ifc_class="IfcColumn", predefined_type="COLUMN", should_add_representation=False
-            )
-        elif self.relating_type.is_a("IfcBeamType"):
-            obj.name = "Beam"
+
+        ifc_classes = ifcopenshell.util.type.get_applicable_entities(self.relating_type.is_a(), self.file.schema)
+        # Standard cases are deprecated, so let's cull them
+        ifc_class = [c for c in ifc_classes if "StandardCase" not in c][0]
+        obj.name = ifc_class[3:]
+        bpy.ops.bim.assign_class(obj=obj.name, ifc_class=ifc_class, should_add_representation=False)
+
+        if self.relating_type.is_a() in ["IfcBeamType", "IfcMemberType"]:
             obj.rotation_euler[0] = math.pi / 2
             obj.rotation_euler[2] = math.pi / 2
-            bpy.ops.bim.assign_class(
-                obj=obj.name, ifc_class="IfcBeam", predefined_type="BEAM", should_add_representation=False
-            )
-        elif self.relating_type.is_a("IfcMemberType"):
-            obj.name = "Member"
-            obj.rotation_euler[0] = math.pi / 2
-            obj.rotation_euler[2] = math.pi / 2
-            bpy.ops.bim.assign_class(
-                obj=obj.name, ifc_class="IfcMember", predefined_type="MEMBER", should_add_representation=False
-            )
+
         element = self.file.by_id(obj.BIMObjectProperties.ifc_definition_id)
         bpy.ops.bim.assign_type(relating_type=self.relating_type.id(), related_object=obj.name)
         profile_set_usage = ifcopenshell.util.element.get_material(element)

src/blenderbim/blenderbim/bim/module/model/slab.py

@@ -211,8 +211,6 @@ class AddSlabOpening(bpy.types.Operator):
         if not slab_obj.BIMObjectProperties.ifc_definition_id:
             return {"FINISHED"}
         slab = IfcStore.get_file().by_id(slab_obj.BIMObjectProperties.ifc_definition_id)
-        if not slab.is_a("IfcSlab"):
-            return {"FINISHED"}
         local_location = slab_obj.matrix_world.inverted() @ context.scene.cursor.location
         raycast = slab_obj.closest_point_on_mesh(local_location, distance=0.01)
         if not raycast[0]:
@@ -280,7 +278,12 @@ class DumbSlabGenerator:
         modifier.use_even_offset = True
         modifier.offset = 1
         modifier.thickness = self.depth
-        obj.name = "Slab"
+
+        ifc_classes = ifcopenshell.util.type.get_applicable_entities(self.relating_type.is_a(), self.file.schema)
+        # Standard cases are deprecated, so let's cull them
+        ifc_class = [c for c in ifc_classes if "StandardCase" not in c][0]
+
+        obj.name = ifc_class[3:]
         obj.location = self.location
         if self.collection_obj and self.collection_obj.BIMObjectProperties.ifc_definition_id:
             obj.location[2] = self.collection_obj.location[2] - self.depth
@@ -289,8 +292,7 @@ class DumbSlabGenerator:
         self.collection.objects.link(obj)
         bpy.ops.bim.assign_class(
             obj=obj.name,
-            ifc_class="IfcSlab",
-            predefined_type="FLOOR",
+            ifc_class=ifc_class,
             ifc_representation_class="IfcExtrudedAreaSolid/IfcArbitraryProfileDefWithVoids",
         )
         bpy.ops.bim.assign_type(relating_type=self.relating_type.id(), related_object=obj.name)

src/blenderbim/blenderbim/bim/module/model/wall.py

@@ -57,8 +57,6 @@ class AddWallOpening(bpy.types.Operator):
         if not wall_obj.BIMObjectProperties.ifc_definition_id:
             return {"FINISHED"}
         wall = IfcStore.get_file().by_id(wall_obj.BIMObjectProperties.ifc_definition_id)
-        if not wall.is_a("IfcWall"):
-            return {"FINISHED"}
         local_location = wall_obj.matrix_world.inverted() @ context.scene.cursor.location
         raycast = wall_obj.closest_point_on_mesh(local_location, distance=0.01)
         if not raycast[0]:
@@ -773,17 +771,24 @@ class DumbWallGenerator:
         ]
         mesh = bpy.data.meshes.new(name="Wall")
         mesh.from_pydata(verts, [], faces)
-        obj = bpy.data.objects.new("Wall", mesh)
+
+        ifc_classes = ifcopenshell.util.type.get_applicable_entities(self.relating_type.is_a(), self.file.schema)
+        # Standard cases are deprecated, so let's cull them
+        ifc_class = [c for c in ifc_classes if "StandardCase" not in c][0]
+
+        obj = bpy.data.objects.new(ifc_class[3:], mesh)
         obj.location = self.location
         obj.rotation_euler[2] = self.rotation
         if self.collection_obj and self.collection_obj.BIMObjectProperties.ifc_definition_id:
             obj.location[2] = self.collection_obj.location[2]
         self.collection.objects.link(obj)
+
         bpy.ops.bim.assign_class(
             obj=obj.name,
-            ifc_class="IfcWall",
+            ifc_class=ifc_class,
             ifc_representation_class="IfcExtrudedAreaSolid/IfcArbitraryClosedProfileDef",
         )
+
         bpy.ops.bim.assign_type(relating_type=self.relating_type.id(), related_object=obj.name)
         element = self.file.by_id(obj.BIMObjectProperties.ifc_definition_id)
         pset = ifcopenshell.api.run("pset.add_pset", self.file, product=element, name="EPset_Parametric")

src/blenderbim/generate_demo_library.py

@@ -17,6 +17,14 @@ class LibraryGenerator:
         self.create_layer_type("IfcWallType", "DEMO200", 0.2)
         self.create_layer_type("IfcWallType", "DEMO300", 0.3)
 
+        self.create_layer_type("IfcCoveringType", "DEMO20", 0.02)
+        self.create_layer_type("IfcRampType", "DEMO200", 0.2)
+
+        profile = self.file.create_entity(
+            "IfcCircleProfileDef", ProfileType="AREA", Radius=0.3
+        )
+        self.create_profile_type("IfcPileType", "DEMO1", profile)
+
         self.create_layer_type("IfcSlabType", "DEMO150", 0.2)
         self.create_layer_type("IfcSlabType", "DEMO250", 0.3)
 

src/ifcopenshell-python/ifcopenshell/util/type.py

@@ -12,13 +12,14 @@ with open(os.path.join(cwd, "entity_to_type_map_2x3.json")) as f:
 with open(os.path.join(cwd, "entity_to_type_map_4.json")) as f:
     entity_to_type_map["IFC4"] = json.load(f)
 
-type_to_entity_map["IFC2X3"] = {
-    value: [key] for key in entity_to_type_map["IFC2X3"] for value in entity_to_type_map["IFC2X3"][key]
-}
-
-type_to_entity_map["IFC4"] = {
-    value: [key] for key in entity_to_type_map["IFC4"] for value in entity_to_type_map["IFC4"][key]
-}
+for schema in ["IFC2X3", "IFC4"]:
+    type_to_entity_map[schema] = {}
+    for element, element_types in entity_to_type_map[schema].items():
+        for element_type in element_types:
+            type_to_entity_map[schema].setdefault(element_type, []).append(element)
+    # TODO: this method just fails for IFC2X3 because 2X3 type mapping is just so broken.
+    # Uncomment the following line to see how bad it is.
+    # print(type_to_entity_map[schema])
 
 
 def get_applicable_types(ifc_class, schema="IFC4"):