You can now add ports to types, and ports are created when placing occurrences of that type

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

@@ -20,7 +20,9 @@ import bpy
 import mathutils
 import ifcopenshell
 import ifcopenshell.api
+import ifcopenshell.util.system
 import ifcopenshell.util.element
+import ifcopenshell.util.placement
 import ifcopenshell.util.representation
 import blenderbim.tool as tool
 import blenderbim.core.type
@@ -81,7 +83,7 @@ class AddTypeInstance(bpy.types.Operator):
         elif material and material.is_a("IfcMaterialLayerSet"):
             if self.generate_layered_element(ifc_class, relating_type):
                 return {"FINISHED"}
-        if relating_type.is_a("IfcFlowSegmentType"):
+        if relating_type.is_a("IfcFlowSegmentType") and not relating_type.RepresentationMaps:
             if mep.MepGenerator(relating_type).generate():
                 return {"FINISHED"}
 
@@ -117,11 +119,9 @@ class AddTypeInstance(bpy.types.Operator):
         collection.objects.link(obj)
         collection_obj = bpy.data.objects.get(collection.name)
         bpy.ops.bim.assign_class(obj=obj.name, ifc_class=instance_class)
+        element = tool.Ifc.get_entity(obj)
         blenderbim.core.type.assign_type(
-            tool.Ifc,
+            tool.Ifc, tool.Type, element=element, type=relating_type
-            tool.Type,
-            element=tool.Ifc.get_entity(obj),
-            type=tool.Ifc.get().by_id(int(props.relating_type)),
         )
 
         if building_obj:
@@ -136,6 +136,17 @@ class AddTypeInstance(bpy.types.Operator):
             if collection_obj and collection_obj.BIMObjectProperties.ifc_definition_id:
                 obj.location[2] = collection_obj.location[2] - min([v[2] for v in obj.bound_box])
 
+        unit_scale = ifcopenshell.util.unit.calculate_unit_scale(tool.Ifc.get())
+        for port in ifcopenshell.util.system.get_ports(relating_type):
+            mat = ifcopenshell.util.placement.get_local_placement(port.ObjectPlacement)
+            mat[0][3] *= unit_scale
+            mat[1][3] *= unit_scale
+            mat[2][3] *= unit_scale
+            port_obj = bpy.data.objects.new("Port", None)
+            port_obj.matrix_world = obj.matrix_world @ mathutils.Matrix(mat)
+            port = tool.System.run_root_assign_class(obj=port_obj, ifc_class="IfcDistributionPort")
+            tool.Ifc.run("system.assign_port", element=element, port=port)
+
         bpy.ops.object.select_all(action="DESELECT")
         obj.select_set(True)
         context.view_layer.objects.active = obj

src/blenderbim/blenderbim/bim/module/system/ui.py

@@ -140,7 +140,9 @@ class BIM_PT_ports(Panel):
         if not context.active_object:
             return False
         element = tool.Ifc.get_entity(context.active_object)
-        if not element or not element.is_a("IfcDistributionElement"):
+        if not element:
+            return False
+        if not element.is_a("IfcDistributionElement") and not element.is_a("IfcDistributionElementType"):
             return False
         return True
 

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

@@ -40,7 +40,8 @@ def get_ports(element):
     results = []
     for rel in getattr(element, "IsNestedBy", []) or []:
         results.extend([o for o in rel.RelatedObjects if o.is_a("IfcDistributionPort")])
-    for rel in element.HasPorts or []:
+    # IFC2X3 only, deprecated in IFC4
+    for rel in getattr(element, "HasPorts", []) or []:
         results.append(rel.RelatingPort)
     return results