| Application module: Manifold surface | ISO/TS 10303-1509:2018-11(E) © ISO | 
         (*
ISO/TC 184/SC 4/WG 12 N7837 - ISO/TS 10303-1509 Manifold surface - EXPRESS ARM
Supersedes 
         ISO/TC 184/SC 4/WG 12 N7196
*)
         
SCHEMA Manifold_surface_arm;
         USE FROM
         Topologically_bounded_surface_arm;
            -- ISO/TS 10303-1511
TYPE manifold_surface_shape_representation_item =
         
         
         SELECT
            (Axis_placement_3d, 
    Geometric_placement_operation, 
    Shell_based_surface_model);
         END_TYPE; 
         
ENTITY Manifold_surface_shape_representation
           SUBTYPE OF (Geometric_model);
           SELF\Representation.items : SET[1:?] OF manifold_surface_shape_representation_item;
         
         END_ENTITY;
ENTITY Open_shell
           SUBTYPE OF (Connected_face_set);
         
         END_ENTITY;
ENTITY Shell_based_surface_model
           SUBTYPE OF (Detailed_geometric_model_element);
           boundary : SET[1:?] OF Connected_face_set;
         
         END_ENTITY;
         END_SCHEMA;  -- Manifold_surface_arm
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