Material profile set usages are now supported. Hooray! Thanks Jesusbill!

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

@@ -318,6 +318,10 @@ class EnableEditingAssignedMaterial(bpy.types.Operator):
             material_set_class = "IfcMaterialLayerSet"
         elif product_data["type"] == "IfcMaterialProfileSet":
             material_set_data = Data.profile_sets[product_data["id"]]
+        elif product_data["type"] == "IfcMaterialProfileSetUsage":
+            profile_set_usage = Data.profile_set_usages[product_data["id"]]
+            material_set_data = Data.profile_sets[profile_set_usage["ForProfileSet"]]
+            material_set_class = "IfcMaterialProfileSet"
         elif product_data["type"] == "IfcMaterialList":
             material_set_data = Data.lists[product_data["id"]]
         else:
@@ -409,7 +413,7 @@ class EnableEditingMaterialSetItem(bpy.types.Operator):
             material_set_item_data = Data.constituents[self.material_set_item]
         elif product_data["type"] == "IfcMaterialLayerSet" or product_data["type"] == "IfcMaterialLayerSetUsage":
             material_set_item_data = Data.layers[self.material_set_item]
-        elif product_data["type"] == "IfcMaterialProfileSet":
+        elif product_data["type"] == "IfcMaterialProfileSet" or product_data["type"] == "IfcMaterialProfileSetUsage":
             material_set_item_data = Data.profiles[self.material_set_item]
         else:
             material_set_item_data = {}
@@ -542,7 +546,7 @@ class EditMaterialSetItem(bpy.types.Operator):
                 },
             )
             Data.load_layers()
-        elif product_data["type"] == "IfcMaterialProfileSet":
+        elif product_data["type"] == "IfcMaterialProfileSet" or product_data["type"] == "IfcMaterialProfileSetUsage":
             profile_attributes = {}
             for attribute in props.material_set_item_profile_attributes:
                 if attribute.data_type == "string":

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

@@ -70,6 +70,7 @@ def getMaterialTypes(self, context):
             "IfcMaterialLayerSet",
             "IfcMaterialLayerSetUsage",
             "IfcMaterialProfileSet",
+            "IfcMaterialProfileSetUsage",
             "IfcMaterialList",
         ]
         if IfcStore.get_file().schema == "IFC2X3":

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

@@ -82,6 +82,13 @@ class BIM_PT_object_material(Panel):
                 self.set_items = self.material_set_data["MaterialProfiles"] or []
                 self.set_data = Data.profiles
                 self.set_item_name = "profile"
+            elif self.product_data["type"] == "IfcMaterialProfileSetUsage":
+                self.material_set_usage = Data.profile_set_usages[self.product_data["id"]]
+                self.material_set_id = self.material_set_usage["ForProfileSet"]
+                self.material_set_data = Data.profile_sets[self.material_set_id]
+                self.set_items = self.material_set_data["MaterialProfiles"] or []
+                self.set_data = Data.profiles
+                self.set_item_name = "profile"
             elif self.product_data["type"] == "IfcMaterialList":
                 self.material_set_id = self.product_data["id"]
                 self.material_set_data = Data.lists[self.material_set_id]

src/ifcopenshell-python/ifcopenshell/api/material/assign_material.py

@@ -24,18 +24,28 @@ class Usecase:
         elif self.settings["type"] == "IfcMaterialProfileSet":
             material_set = self.file.create_entity(self.settings["type"])
             self.create_material_association(material_set)
+        elif self.settings["type"] == "IfcMaterialProfileSetUsage":
+            material_set = self.file.create_entity("IfcMaterialProfileSet")
+            material_set_usage = self.create_profile_set_usage(material_set)
+            self.create_material_association(material_set_usage)
         elif self.settings["type"] == "IfcMaterialList":
             material_set = self.file.create_entity(self.settings["type"])
             material_set.Materials = [self.settings["material"]]
             self.create_material_association(material_set)
 
     def create_layer_set_usage(self, material_set):
-        return self.file.create_entity("IfcMaterialLayerSetUsage", **{
+        return self.file.create_entity(
-            "ForLayerSet": material_set,
+            "IfcMaterialLayerSetUsage",
-            "LayerSetDirection": "AXIS2" if self.settings["product"].is_a("IfcWall") else "AXIS3",
+            **{
-            "DirectionSense": "POSITIVE",
+                "ForLayerSet": material_set,
-            "OffsetFromReferenceLine": 0
+                "LayerSetDirection": "AXIS2" if self.settings["product"].is_a("IfcWall") else "AXIS3",
-        })
+                "DirectionSense": "POSITIVE",
+                "OffsetFromReferenceLine": 0,
+            }
+        )
+
+    def create_profile_set_usage(self, material_set):
+        return self.file.create_entity("IfcMaterialProfileSetUsage", **{"ForProfileSet": material_set})
 
     def assign_ifc_material(self):
         rel = self.get_rel_associates_material(self.settings["material"])

src/ifcopenshell-python/ifcopenshell/api/material/data.py

@@ -6,8 +6,10 @@ class Data:
     materials = {}
     constituent_sets = {}
     constituents = {}
+    layer_sets_usages = {}
     layer_sets = {}
     layers = {}
+    profile_set_usages = {}
     profile_sets = {}
     profiles = {}
     lists = {}
@@ -23,6 +25,7 @@ class Data:
         cls.layer_set_usages = {}
         cls.layer_sets = {}
         cls.layers = {}
+        cls.profile_set_usages = {}
         cls.profile_sets = {}
         cls.profiles = {}
         cls.lists = {}
@@ -41,6 +44,7 @@ class Data:
         cls.load_layers()
         cls.load_layer_usages()
         cls.load_profiles()
+        cls.load_profile_usages()
         cls.load_lists()
         cls.is_loaded = True
 
@@ -68,6 +72,11 @@ class Data:
         cls.layer_set_usages = {}
         cls.load_element("IfcMaterialLayerSetUsage", cls.layer_set_usages)
 
+    @classmethod
+    def load_profile_usages(cls):
+        cls.profile_set_usages = {}
+        cls.load_element("IfcMaterialProfileSetUsage", cls.profile_set_usages)
+
     @classmethod
     def load_profiles(cls):
         cls.profile_sets = {}
@@ -109,6 +118,4 @@ class Data:
     @classmethod
     def load_association(cls, association, product_id):
         material_select = association.RelatingMaterial
-        if material_select.is_a("IfcMaterialProfileSetUsage"):  # TODO: implement usages
-            material_select = material_select.ForProfileSet
         cls.products[product_id] = {"type": material_select.is_a(), "id": material_select.id()}