fix #4051: filter to only show IfcProfileDefs that are attached to IfcMaterialProfiles

src/bonsai/bonsai/bim/module/profile/operator.py

@@ -37,7 +37,14 @@ class LoadProfiles(bpy.types.Operator):
         props = context.scene.BIMProfileProperties
         props.profiles.clear()
 
+        filter_material_profiles = props.is_filtering_material_profiles
+
         for profile in tool.Ifc.get().by_type("IfcProfileDef"):
+            if filter_material_profiles:
+                inverse_references = tool.Ifc.get().get_inverse(profile)
+                related_material_profiles = [ref for ref in inverse_references if ref.is_a('IfcMaterialProfile')]
+                if not related_material_profiles:
+                    continue
             if not profile.ProfileName:
                 continue
             new = props.profiles.add()

src/bonsai/bonsai/bim/module/profile/prop.py

@@ -66,6 +66,14 @@ class BIMProfileProperties(PropertyGroup):
     active_arbitrary_profile_id: IntProperty(name="Active Arbitrary Profile Id")
     profile_attributes: CollectionProperty(name="Profile Attributes", type=Attribute)
     profile_classes: EnumProperty(items=get_profile_classes, name="Profile Classes")
+    is_filtering_material_profiles: bpy.props.BoolProperty(
+        name="Filter Material Profiles",
+        default=False,
+        description="Check to only show IfcProfileDefs attached to IfcMaterialProfiles",
+        update=lambda self, context: bpy.ops.bim.load_profiles() 
+    )
+
+
 
 
 def generate_thumbnail_for_active_profile():

src/bonsai/bonsai/bim/module/profile/ui.py

@@ -83,6 +83,10 @@ class BIM_PT_profiles(Panel):
             self.props,
             "active_profile_index",
         )
+        
+        row = self.layout.row()
+        row.prop(self.props, "is_filtering_material_profiles", text="Filter Material Profiles")
+
         if active_profile:
             if active_profile.ifc_class in (
                 "IfcArbitraryClosedProfileDef",