Added small UI to show realizing elements for the connections

Example - https://i.imgur.com/JLDcnbK.png

src/blenderbim/blenderbim/bim/module/geometry/data.py

@@ -114,7 +114,13 @@ class ConnectionsData:
             else:
                 related_element = rel.RelatedElement
 
-            if element.is_a("IfcRelConnectsPathElements"):
+            realizing_elements = []
+            realizing_elements_connection_type = ""
+            if rel.is_a("IfcRelConnectsWithRealizingElements"):
+                realizing_elements.extend(rel.RealizingElements)
+                realizing_elements_connection_type = rel.ConnectionType
+
+            if rel.is_a("IfcRelConnectsPathElements"):
                 related_element_connection_type = rel.RelatedConnectionType
             else:
                 related_element_connection_type = ""
@@ -125,6 +131,8 @@ class ConnectionsData:
                     "is_relating": True,
                     "Name": related_element.Name or "Unnamed",
                     "ConnectionType": related_element_connection_type,
+                    "realizing_elements": realizing_elements,
+                    "realizing_elements_connection_type": realizing_elements_connection_type
                 }
             )
 
@@ -134,7 +142,13 @@ class ConnectionsData:
             else:
                 relating_element = rel.RelatingElement
 
-            if element.is_a("IfcRelConnectsPathElements"):
+            realizing_elements = []
+            realizing_elements_connection_type = ""
+            if rel.is_a("IfcRelConnectsWithRealizingElements"):
+                realizing_elements.extend(rel.RealizingElements)
+                realizing_elements_connection_type = rel.ConnectionType
+
+            if rel.is_a("IfcRelConnectsPathElements"):
                 relating_element_connection_type = rel.RelatingConnectionType
             else:
                 relating_element_connection_type = ""
@@ -145,6 +159,8 @@ class ConnectionsData:
                     "is_relating": False,
                     "Name": relating_element.Name or "Unnamed",
                     "ConnectionType": relating_element_connection_type,
+                    "realizing_elements": realizing_elements,
+                    "realizing_elements_connection_type": realizing_elements_connection_type
                 }
             )
 

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

@@ -146,6 +146,20 @@ class BIM_PT_connections(Panel):
             op = row.operator("bim.remove_connection", icon="X", text="")
             op.connection = connection["id"]
 
+            if connection["realizing_elements"]:
+                row = self.layout.row(align=True)
+                connection_type = connection["realizing_elements_connection_type"]
+                connection_type = f" ({connection_type})" if connection_type else ""
+                row.label(text=f"Realizing elements{connection_type}:")
+                
+                for element in connection["realizing_elements"]:
+                    row = self.layout.row(align=True)
+                    obj = tool.Ifc.get_object(element)
+                    row.label(text=obj.name)
+                    row.operator(
+                        "bim.select_entity", text="", icon="RESTRICT_SELECT_OFF"
+                    ).ifc_id = element.id()
+
 
 class BIM_PT_mesh(Panel):
     bl_label = "Representation Utilities"