Opening#
| Attribute Name | Data Type | Description | 
|---|---|---|
| no | int | Object number | 
| boundary_lines | List[int] | Boundary Lines No. | 
| parts | List[int] | Parts No. | 
| area | float | Area | A | 
| center_of_opening | Center of opening | |
| center_of_opening_y | float | Center of opening | Y_C | 
| center_of_opening_z | float | Center of opening | Z_C | 
| parent_layer | int | Parent layer | 
| is_locked_by_parent_layer | bool | Locked by parent layer | 
| is_generated | bool | Generated by | 
| generating_object_info | str | Generated by | 
| comment | str | Comment | 
| id_for_export_import | str | |
| metadata_for_export_import | str |