ENTITY b_spline_surface

(* SCHEMA step_ship_schema; *)

ENTITY b_spline_surface
  SUPERTYPE OF (ONEOF (b_spline_surface_with_knots,uniform_surface,
      quasi_uniform_surface,bezier_surface) ANDOR
      rational_b_spline_surface)
  SUBTYPE OF (bounded_surface);
    u_degree            : INTEGER;
    v_degree            : INTEGER;
    control_points_list : LIST [2:?] OF LIST [2:?] OF cartesian_point;
    surface_form        : b_spline_surface_form;
    u_closed            : LOGICAL;
    v_closed            : LOGICAL;
    self_intersect      : LOGICAL;
  DERIVE
    u_upper        : INTEGER := SIZEOF(control_points_list) - 1;
    v_upper        : INTEGER := SIZEOF(control_points_list[1]) - 1;
    control_points : ARRAY [0:u_upper] OF ARRAY [0:v_upper] OF
                         cartesian_point := make_array_of_array(
                        control_points_list,0,u_upper,0,v_upper);
  WHERE
    wr1: ((('STEP_SHIP_SCHEMA.UNIFORM_SURFACE' IN TYPEOF(SELF))
             OR ('STEP_SHIP_SCHEMA.QUASI_UNIFORM_SURFACE' IN
             TYPEOF(SELF))) OR ('STEP_SHIP_SCHEMA.BEZIER_SURFACE'
             IN TYPEOF(SELF))) OR (
             'STEP_SHIP_SCHEMA.B_SPLINE_SURFACE_WITH_KNOTS' IN
             TYPEOF(SELF));
END_ENTITY;

Explicit Attributes

Derived Attributes

Inverse Attributes

Supertypes

Subtypes

Referenced By

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