Shortlist which IFC geometries may be treated as a meshlike object.

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

@@ -747,7 +747,7 @@ def _execute(self, context):
                 obj.select_set(False)
                 continue
 
-            if representation.RepresentationType in ("Tessellation", "Brep"):
+            if tool.Geometry.is_meshlike(representation):
                 if element.HasOpenings:
                     # Mesh elements with openings must disable openings
                     # so that you can edit the original topology.
@@ -837,9 +837,8 @@ def invoke(self, context, event):
 
             if obj.data.BIMMeshProperties.ifc_definition_id:
                 representation = tool.Ifc.get().by_id(obj.data.BIMMeshProperties.ifc_definition_id)
-                if representation.RepresentationType in (
-                    "Tessellation",
-                    "Brep",
+                if tool.Geometry.is_meshlike(
+                    representation
                 ) and obj.data.BIMMeshProperties.mesh_checksum != tool.Geometry.get_mesh_checksum(obj.data):
                     self.edited_objs.append(obj)
                 elif element.HasOpenings:

src/blenderbim/blenderbim/tool/geometry.py

@@ -135,13 +135,13 @@ def get_mesh_checksum(cls, mesh):
         faces = mesh.polygons[:]
 
         # Convert mesh data to bytes
-        data_bytes = b''
+        data_bytes = b""
         for v in vertices:
-            data_bytes += struct.pack('3f', *v.co)
+            data_bytes += struct.pack("3f", *v.co)
         for e in edges:
-            data_bytes += struct.pack('2i', *e.vertices)
+            data_bytes += struct.pack("2i", *e.vertices)
         for f in faces:
-            data_bytes += struct.pack('%di' % len(f.vertices), *f.vertices)
+            data_bytes += struct.pack("%di" % len(f.vertices), *f.vertices)
 
         # Generate hash of mesh data
         hasher = hashlib.sha1()
@@ -261,6 +261,30 @@ def is_edited(cls, obj):
     def is_mapped_representation(cls, representation):
         return representation.RepresentationType == "MappedRepresentation"
 
+    @classmethod
+    def is_meshlike(cls, representation):
+        if representation.RepresentationType in (
+            "AdvancedBrep",
+            "Annotation2D",
+            "BoundingBox",
+            "Brep",
+            "Curve",
+            "Curve2D",
+            "Curve3D",
+            "FillArea",
+            "GeometricCurveSet",
+            "GeometricSet",
+            "Point",
+            "PointCloud",
+            "Surface",
+            "Surface2D",
+            "Surface3D",
+            "SurfaceModel",
+            "Tessellation",
+        ):
+            return True
+        return False
+
     @classmethod
     def is_type_product(cls, element):
         return element.is_a("IfcTypeProduct")