Fix bug where drawing objects could be added to the wrong context.

src/blenderbim/blenderbim/core/drawing.py

@@ -102,8 +102,14 @@ def add_drawing(ifc, collector, drawing, target_view=None, location_hint=None):
     drawing_name = drawing.ensure_unique_drawing_name("UNTITLED")
     drawing_matrix = drawing.generate_drawing_matrix(target_view, location_hint)
     camera = drawing.create_camera(drawing_name, drawing_matrix)
-    # Not yet refactored
-    element = drawing.run_assign_class_operator(obj=camera, ifc_class="IfcAnnotation", predefined_type="DRAWING")
+    element = drawing.run_root_assign_class(
+        obj=camera,
+        ifc_class="IfcAnnotation",
+        predefined_type="DRAWING",
+        should_add_representation=True,
+        context=drawing.get_body_context(),
+        ifc_representation_class=None,
+    )
     group = ifc.run("group.add_group")
     ifc.run("group.edit_group", group=group, attributes={"Name": drawing_name})
     ifc.run("group.assign_group", group=group, product=element)

src/blenderbim/blenderbim/tool/drawing.py

@@ -104,6 +104,10 @@ class Drawing(blenderbim.core.tool.Drawing):
     def export_text_literal_attributes(cls, obj):
         return blenderbim.bim.helper.export_attributes(obj.BIMTextProperties.attributes)
 
+    @classmethod
+    def get_body_context(cls):
+        return ifcopenshell.util.representation.get_context(tool.Ifc.get(), "Model", "Body", "MODEL_VIEW")
+
     @classmethod
     def get_sheet_filename(cls, document):
         if hasattr(document, "Identification"):
@@ -195,9 +199,18 @@ class Drawing(blenderbim.core.tool.Drawing):
         )
 
     @classmethod
-    def run_assign_class_operator(cls, obj=None, ifc_class=None, predefined_type=None):
-        bpy.ops.bim.assign_class(obj=obj.name, ifc_class=ifc_class, predefined_type=predefined_type)
-        return tool.Ifc.get_entity(obj)
+    def run_root_assign_class(cls, obj=None, ifc_class=None, predefined_type=None, should_add_representation=True, context=None, ifc_representation_class=None):
+        return blenderbim.core.root.assign_class(
+            tool.Ifc,
+            tool.Collector,
+            tool.Root,
+            obj=obj,
+            ifc_class=ifc_class,
+            predefined_type=predefined_type,
+            should_add_representation=should_add_representation,
+            context=context,
+            ifc_representation_class=ifc_representation_class,
+        )
 
     @classmethod
     def update_text_value(cls, obj):

src/blenderbim/test/core/test_drawing.py

@@ -144,8 +144,14 @@ class TestAddDrawing:
         drawing.ensure_unique_drawing_name("UNTITLED").should_be_called().will_return("name")
         drawing.generate_drawing_matrix("target_view", "location_hint").should_be_called().will_return("matrix")
         drawing.create_camera("name", "matrix").should_be_called().will_return("obj")
-        drawing.run_assign_class_operator(
-            obj="obj", ifc_class="IfcAnnotation", predefined_type="DRAWING"
+        drawing.get_body_context().should_be_called().will_return("context")
+        drawing.run_root_assign_class(
+            obj="obj",
+            ifc_class="IfcAnnotation",
+            predefined_type="DRAWING",
+            should_add_representation=True,
+            context="context",
+            ifc_representation_class=None,
         ).should_be_called().will_return("element")
         ifc.run("group.add_group").should_be_called().will_return("group")
         ifc.run("group.edit_group", group="group", attributes={"Name": "name"}).should_be_called()

src/blenderbim/test/tool/test_drawing.py

@@ -149,6 +149,16 @@ class TestExportTextLiteralAttributes(NewFile):
         }
 
 
+class TestGetBodyContext(NewFile):
+    def test_run(self):
+        ifc = ifcopenshell.file()
+        context = ifc.createIfcGeometricRepresentationSubContext(
+            ContextType="Model", ContextIdentifier="Body", TargetView="MODEL_VIEW"
+        )
+        tool.Ifc.set(ifc)
+        assert subject.get_body_context() == context
+
+
 class TestGetSheetFilename(NewFile):
     def test_run(self):
         ifc = ifcopenshell.file()