you can now filter structural loads based on name and inverse references

src/blenderbim/blenderbim/bim/module/structural/__init__.py

@@ -43,6 +43,7 @@ classes = (
     operator.DisableEditingStructuralLoad,
     operator.RemoveStructuralLoad,
     operator.EditStructuralLoad,
+    operator.ToggleFilterStructuralLoads,
     prop.StructuralAnalysisModel,
     prop.StructuralActivity,
     prop.StructuralLoad,

src/blenderbim/blenderbim/bim/module/structural/operator.py

@@ -761,13 +761,29 @@ class LoadStructuralLoads(bpy.types.Operator):
     bl_label = "Load Structural Loads"
 
     def execute(self, context):
+        self.file = IfcStore.get_file()
         props = context.scene.BIMStructuralProperties
         while len(props.structural_loads) > 0:
             props.structural_loads.remove(0)
-        for ifc_definition_id, structural_loads in Data.structural_loads.items():
-            new = props.structural_loads.add()
-            new.ifc_definition_id = ifc_definition_id
-            new.name = structural_loads["Name"] or "Unnamed"
+        if props.filtered_structural_loads:
+            names = [structural_load["Name"] or "Unnamed" for _, structural_load in Data.structural_loads.items()]
+            for ifc_definition_id, structural_load in Data.structural_loads.items():
+                if (
+                    names.count(structural_load["Name"] or "Unnamed") > 1
+                    and len(self.file.get_inverse(self.file.by_id(ifc_definition_id))) < 2
+                ):
+                    continue
+                new = props.structural_loads.add()
+                new.ifc_definition_id = ifc_definition_id
+                new.name = structural_load["Name"] or "Unnamed"
+                new.number_of_inverse_references = len(self.file.get_inverse(self.file.by_id(ifc_definition_id)))
+
+        else:
+            for ifc_definition_id, structural_load in Data.structural_loads.items():
+                new = props.structural_loads.add()
+                new.ifc_definition_id = ifc_definition_id
+                new.name = structural_load["Name"] or "Unnamed"
+                new.number_of_inverse_references = len(self.file.get_inverse(self.file.by_id(ifc_definition_id)))
         props.is_editing_loads = True
         bpy.ops.bim.disable_editing_structural_load()
         return {"FINISHED"}
@@ -859,3 +875,16 @@ class EditStructuralLoad(bpy.types.Operator):
         Data.load(IfcStore.get_file())
         bpy.ops.bim.load_structural_loads()
         return {"FINISHED"}
+
+
+class ToggleFilterStructuralLoads(bpy.types.Operator):
+    bl_idname = "bim.toggle_filter_structural_loads"
+    bl_label = "Toggle Filter Structural Loads"
+
+    def execute(self, context):
+        props = context.scene.BIMStructuralProperties
+        props.filtered_structural_loads = not props.filtered_structural_loads
+        bpy.ops.bim.load_structural_loads()
+        return {"FINISHED"}
+
+

src/blenderbim/blenderbim/bim/module/structural/prop.py

@@ -112,6 +112,7 @@ class StructuralActivity(PropertyGroup):
 class StructuralLoad(PropertyGroup):
     name: StringProperty(name="Name")
     ifc_definition_id: IntProperty(name="IFC Definition ID")
+    number_of_inverse_references: IntProperty(name="Number of Inverse References")
 
 
 class BIMStructuralProperties(PropertyGroup):
@@ -137,12 +138,15 @@ class BIMStructuralProperties(PropertyGroup):
     )
     load_group_activities: CollectionProperty(name="Load Group Activities", type=StructuralActivity)
     active_load_group_activity_index: IntProperty(name="Active Load Group Activity Index")
+
     structural_loads: CollectionProperty(name="Structural Loads", type=StructuralLoad)
     active_structural_load_index: IntProperty(name="Active Structural Load Index")
     active_structural_load_id: IntProperty(name="Active Structural Load Id")
     is_editing_loads: BoolProperty(name="Is Editing Loads", default=False)
     structural_load_types: EnumProperty(items=getStructuralLoadTypes, name="Structural Load Types")
     structural_load_attributes: CollectionProperty(name="Structural Load Attributes", type=Attribute)
+    filtered_structural_loads: BoolProperty(name="Filtered Structural Loads", default=False)
+
 
 
 class BIMObjectStructuralProperties(PropertyGroup):

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

@@ -453,11 +453,18 @@ class BIM_PT_structural_loads(Panel):
         self.props = context.scene.BIMStructuralProperties
 
         row = self.layout.row(align=True)
-        row.label(text="{} Structural Loads Found".format(len(Data.structural_loads)), icon="GHOST_ENABLED")
+        row.label(text="{} Structural Loads Found".format(len(Data.structural_loads)), icon="ANIM_DATA")
         if self.props.is_editing_loads:
+            row.operator(
+                "bim.toggle_filter_structural_loads",
+                text="FILTER - OFF" if not self.props.filtered_structural_loads else "FILTER - ON",
+                icon="FILTER",
+            )
+            row.operator("bim.disable_structural_load_editing_ui", text="", icon="SCREEN_BACK")
+
+            row = self.layout.row(align=True)
             row.prop(self.props, "structural_load_types", text="")
             row.operator("bim.add_structural_load", text="", icon="ADD").ifc_class = self.props.structural_load_types
-            row.operator("bim.disable_structural_load_editing_ui", text="", icon="CANCEL")
         else:
             row.operator("bim.load_structural_loads", text="", icon="GREASEPENCIL")