ENTITY b_spline_surface

(* SCHEMA feature_based_process_planning; *)

  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: ((('FEATURE_BASED_PROCESS_PLANNING.UNIFORM_SURFACE' IN TYPEOF(
               SELF)) OR (
               'FEATURE_BASED_PROCESS_PLANNING.QUASI_UNIFORM_SURFACE' IN 
               TYPEOF(SELF))) OR (
               'FEATURE_BASED_PROCESS_PLANNING.BEZIER_SURFACE' IN TYPEOF(
               SELF))) OR ('FEATURE_BASED_PROCESS_PLANNING.B_SPLINE_SURFACE_WITH_KNOTS' 
               IN TYPEOF(SELF));
  END_ENTITY; -- b_spline_surface

Explicit Attributes

Entity b_spline_surface has the following local and inherited explicit attributes:

Attribute	Type	Defined By
name	label (STRING)	representation_item
u_degree	INTEGER	b_spline_surface
v_degree	INTEGER	b_spline_surface
control_points_list	LIST OF LIST OF cartesian_point (ENTITY)	b_spline_surface
surface_form	b_spline_surface_form (ENUM)	b_spline_surface
u_closed	LOGICAL	b_spline_surface
v_closed	LOGICAL	b_spline_surface
self_intersect	LOGICAL	b_spline_surface

Derived Attributes

Entity b_spline_surface has the following local and inherited derived attributes:

Attribute	Type	Defined By
dim	dimension_count (INTEGER)	geometric_representation_item
u_upper	INTEGER	b_spline_surface
v_upper	INTEGER	b_spline_surface
control_points	ARRAY OF ARRAY OF cartesian_point (ENTITY)	b_spline_surface

Inverse Attributes

No Inverse Attributes

Supertypes

Entity b_spline_surface inherits from the following supertypes:
  representation_item
    geometric_representation_item
      surface
        bounded_surface

Subtypes

Entity b_spline_surface has the following subtypes:
    b_spline_surface_with_knots*
    bezier_surface*
    quasi_uniform_surface*
    rational_b_spline_surface*
    uniform_surface*
* - Immediate Subtypes

Referenced By

Entity b_spline_surface and its supertypes are referenced by the following definitions:

Definition	Type	Referenced Entity
acyclic_mapped_representation	FUNCTION	representation_item
associated_surface	FUNCTION	surface
axis1_placement	ENTITY	geometric_representation_item
axis2_placement_2d	ENTITY	geometric_representation_item
bounded_surface	ENTITY	b_spline_surface
b_spline_surface_with_knots	ENTITY	b_spline_surface
cartesian_transformation_operator_3d	ENTITY	geometric_representation_item
dimension_of	FUNCTION	geometric_representation_item
face_surface	ENTITY	surface
founded_item_select	SELECT	representation_item
geometric_representation_item	ENTITY	surface
geometric_set_select	SELECT	surface
get_basis_surface	FUNCTION	surface
item_in_context	FUNCTION	representation_item
list_representation_item	AGGREGATE	representation_item
mapped_item	ENTITY	representation_item
pcurve	ENTITY	geometric_representation_item
pcurve	ENTITY	surface
pcurve_or_surface	SELECT	surface
rational_b_spline_surface	ENTITY	b_spline_surface
representation	ENTITY	representation_item
representation_map	ENTITY	representation_item
set_representation_item	AGGREGATE	representation_item
surface	ENTITY	bounded_surface
surface_curve	ENTITY	surface

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