The type of mapped representations is now shown in the interface, with an asterisk denoting it is mapped.

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

@@ -24,6 +24,41 @@ from mathutils import Vector
 
 def refresh():
     DerivedPlacementsData.is_loaded = False
+    RepresentationsData.is_loaded = False
+
+
+class RepresentationsData:
+    data = {}
+    is_loaded = False
+
+    @classmethod
+    def load(cls):
+        cls.data = {"representations": cls.representations()}
+        cls.is_loaded = True
+
+    @classmethod
+    def representations(cls):
+        results = []
+        element = tool.Ifc.get_entity(bpy.context.active_object)
+        if element.is_a("IfcProduct") and element.Representation:
+            representations = element.Representation.Representations
+        elif element.is_a("IfcTypeProduct"):
+            representations = [rm.MappedRepresentation for rm in element.RepresentationMaps or []]
+        for representation in representations:
+            representation_type = representation.RepresentationType
+            if representation_type == "MappedRepresentation":
+                representation_type = representation.Items[0].MappingSource.MappedRepresentation.RepresentationType
+                representation_type += "*"
+            results.append(
+                {
+                    "id": representation.id(),
+                    "ContextType": representation.ContextOfItems.ContextType,
+                    "ContextIdentifier": representation.ContextOfItems.ContextIdentifier,
+                    "TargetView": representation.ContextOfItems.TargetView,
+                    "RepresentationType": representation_type,
+                }
+            )
+        return results
 
 
 class DerivedPlacementsData:

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

@@ -18,9 +18,8 @@
 
 import bpy
 from bpy.types import Panel
-from ifcopenshell.api.geometry.data import Data
 from blenderbim.bim.ifc import IfcStore
-from blenderbim.bim.module.geometry.data import DerivedPlacementsData
+from blenderbim.bim.module.geometry.data import RepresentationsData, DerivedPlacementsData
 
 
 class BIM_PT_representations(Panel):
@@ -40,33 +39,31 @@ class BIM_PT_representations(Panel):
         return IfcStore.get_file()
 
     def draw(self, context):
+        if not RepresentationsData.is_loaded:
+            RepresentationsData.load()
+
         layout = self.layout
         props = context.active_object.BIMObjectProperties
 
-        if props.ifc_definition_id not in Data.products:
+        if not RepresentationsData.data["representations"]:
-            Data.load(IfcStore.get_file(), props.ifc_definition_id)
-
-        representations = Data.products[props.ifc_definition_id]
-        if not representations:
             layout.label(text="No representations found")
 
         row = layout.row(align=True)
         row.prop(context.scene.BIMProperties, "contexts", text="")
         row.operator("bim.add_representation", icon="ADD", text="")
 
-        for ifc_definition_id in representations:
+        for representation in RepresentationsData.data["representations"]:
-            representation = Data.representations[ifc_definition_id]
             row = self.layout.row(align=True)
-            row.label(text=representation["ContextOfItems"]["ContextType"])
+            row.label(text=representation["ContextType"])
-            row.label(text=representation["ContextOfItems"]["ContextIdentifier"])
+            row.label(text=representation["ContextIdentifier"])
-            row.label(text=representation["ContextOfItems"]["TargetView"])
+            row.label(text=representation["TargetView"])
             row.label(text=representation["RepresentationType"])
             op = row.operator("bim.switch_representation", icon="OUTLINER_DATA_MESH", text="")
             op.should_switch_all_meshes = True
             op.should_reload = True
-            op.ifc_definition_id = ifc_definition_id
+            op.ifc_definition_id = representation["id"]
             op.disable_opening_subtractions = False
-            row.operator("bim.remove_representation", icon="X", text="").representation_id = ifc_definition_id
+            row.operator("bim.remove_representation", icon="X", text="").representation_id = representation["id"]
 
 
 class BIM_PT_mesh(Panel):

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

@@ -80,7 +80,7 @@ class VIEW3D_MT_PIE_bim(bpy.types.Menu):
     def draw(self, context):
         pie = self.layout.menu_pie()
         pie.operator("bim.edit_object_placement")
-        pie.operator("bim.update_representation")
+        pie.operator("bim.update_representation").ifc_representation_class = ""
         pie.operator("bim.pie_add_opening")
         pie.operator("bim.pie_update_container")
         pie.operator("bim.open_pie_class", text="Assign IFC Class")