Exports now automatically detect curve representations

src/ifcblenderexport/blenderbim/bim/export_ifc.py

@@ -1086,7 +1086,7 @@ class IfcParser():
             'is_point_cloud': self.is_point_cloud(obj),
             'is_structural': self.is_structural(obj),
             'is_text': isinstance(mesh, bpy.types.TextCurve),
-            'is_wireframe': mesh.BIMMeshProperties.is_wireframe if hasattr(mesh, 'BIMMeshProperties') else False,
+            'is_wireframe': self.is_wireframe_mesh(mesh),
             'is_native': mesh.BIMMeshProperties.is_native if hasattr(mesh, 'BIMMeshProperties') else False,
             'is_swept_solid': mesh.BIMMeshProperties.is_swept_solid if hasattr(mesh, 'BIMMeshProperties') else False,
             'is_generated': False,
@@ -1094,6 +1094,13 @@ class IfcParser():
             'attributes': {'Name': mesh.name}
         }
 
+    def is_wireframe_mesh(self, mesh):
+        if isinstance(mesh, bpy.types.Mesh) and not mesh.polygons:
+            return True
+        if isinstance(mesh, bpy.types.Curve) and not mesh.bevel_object and not mesh.bevel_depth:
+            return True
+        return False
+
     def is_mesh_context_sensitive(self, name):
         return '/' in name \
             and ( \

src/ifcblenderexport/blenderbim/bim/prop.py

@@ -1290,7 +1290,6 @@ class RepresentationItem(PropertyGroup):
 
 
 class BIMMeshProperties(PropertyGroup):
-    is_wireframe: BoolProperty(name="Is Wireframe")
     is_native: BoolProperty(name="Is Native", default=False)
     is_swept_solid: BoolProperty(name="Is Swept Solid")
     swept_solids: CollectionProperty(name="Swept Solids", type=SweptSolid)

src/ifcblenderexport/blenderbim/bim/ui.py

@@ -589,8 +589,6 @@ class BIM_PT_mesh(Panel):
         row = layout.row()
         row.prop(props, 'is_parametric')
         row = layout.row()
-        row.prop(props, 'is_wireframe')
-        row = layout.row()
         row.prop(props, 'is_native')
         row = layout.row()
         row.prop(props, 'is_swept_solid')