ENTITY b_spline_curve

(* SCHEMA integrated_cnc_schema; *)

ENTITY b_spline_curve
  SUPERTYPE OF (ONEOF(uniform_curve, b_spline_curve_with_knots, 
      quasi_uniform_curve, bezier_curve) ANDOR rational_b_spline_curve)
  SUBTYPE OF (bounded_curve);
    degree              : INTEGER;
    control_points_list : LIST [2:?] OF cartesian_point;
    curve_form          : b_spline_curve_form;
    closed_curve        : LOGICAL;
    self_intersect      : LOGICAL;
  DERIVE
    upper_index_on_control_points : INTEGER := SIZEOF(control_points_list) 
                                       - 1;
    control_points                : ARRAY [0:upper_index_on_control_points]
                                        OF cartesian_point := list_to_array
                                       (control_points_list, 0, 
                                       upper_index_on_control_points);
  WHERE
    WR1: ((('INTEGRATED_CNC_SCHEMA.UNIFORM_CURVE' IN TYPEOF(SELF)) OR (
              'INTEGRATED_CNC_SCHEMA.QUASI_UNIFORM_CURVE' IN TYPEOF(SELF)))
               OR ('INTEGRATED_CNC_SCHEMA.BEZIER_CURVE' IN TYPEOF(SELF))) 
              OR ('INTEGRATED_CNC_SCHEMA.B_SPLINE_CURVE_WITH_KNOTS' IN 
              TYPEOF(SELF));
END_ENTITY; -- 10303-42: geometry_schema

Explicit Attributes

Entity b_spline_curve has the following local and inherited explicit attributes:

Attribute	Type	Defined By
name	label (STRING)	representation_item
degree	INTEGER	b_spline_curve
control_points_list	LIST OF cartesian_point (ENTITY)	b_spline_curve
curve_form	b_spline_curve_form (ENUM)	b_spline_curve
closed_curve	LOGICAL	b_spline_curve
self_intersect	LOGICAL	b_spline_curve

Derived Attributes

Entity b_spline_curve has the following local and inherited derived attributes:

Attribute	Type	Defined By
dim	dimension_count (INTEGER)	geometric_representation_item
upper_index_on_control_points	INTEGER	b_spline_curve
control_points	ARRAY OF cartesian_point (ENTITY)	b_spline_curve

Inverse Attributes

No Inverse Attributes

Supertypes

Entity b_spline_curve inherits from the following supertypes:
  representation_item
    geometric_representation_item
      curve
        bounded_curve

Subtypes

Entity b_spline_curve has the following subtypes:
    b_spline_curve_with_knots*
    bezier_curve*
    quasi_uniform_curve*
    rational_b_spline_curve*
    uniform_curve*
* - Immediate Subtypes

Referenced By

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

Definition	Type	Referenced Entity
acyclic_curve_replica	FUNCTION	curve
acyclic_mapped_representation	FUNCTION	representation_item
axis1_placement	ENTITY	geometric_representation_item
axis2_placement_2d	ENTITY	geometric_representation_item
bounded_curve	ENTITY	b_spline_curve
cartesian_transformation_operator_3d	ENTITY	geometric_representation_item
composite_curve_segment	ENTITY	curve
curve_replica	ENTITY	curve
degenerate_pcurve	ENTITY	geometric_representation_item
dimension_of	FUNCTION	geometric_representation_item
edge_curve	ENTITY	curve
founded_item_select	SELECT	representation_item
gbsf_check_curve	FUNCTION	b_spline_curve
gbsf_check_curve	FUNCTION	representation_item
geometric_representation_item	ENTITY	curve
geometric_set_select	SELECT	curve
get_tool_body_item	FUNCTION	representation_item
item_defined_transformation	ENTITY	representation_item
item_in_context	FUNCTION	representation_item
list_representation_item	AGGREGATE	representation_item
mapped_item	ENTITY	representation_item
msf_curve_check	FUNCTION	representation_item
msf_curve_check	FUNCTION	b_spline_curve
nmsf_curve_check	FUNCTION	b_spline_curve
nmsf_curve_check	FUNCTION	representation_item
offset_curve_3d	ENTITY	curve
pcurve	ENTITY	geometric_representation_item
point_on_curve	ENTITY	curve
rational_b_spline_curve	ENTITY	b_spline_curve
representation	ENTITY	representation_item
representation_item_relationship	ENTITY	representation_item
representation_map	ENTITY	representation_item
set_representation_item	AGGREGATE	representation_item
surface_curve	ENTITY	curve
surface_of_revolution	ENTITY	curve
surface_of_revolution	ENTITY	representation_item
surface_of_revolution	ENTITY	geometric_representation_item
swept_surface	ENTITY	curve
trimmed_curve	ENTITY	curve
valid_geometrically_bounded_wf_curve	FUNCTION	curve
valid_wireframe_edge_curve	FUNCTION	curve
verify_ballnose_endmill_dimensions	FUNCTION	representation_item
verify_bullnose_endmill_dimensions	FUNCTION	representation_item

[Top Level Definitions]

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