ENTITY b_spline_curve

(* SCHEMA STRUCTURAL_FRAME_SCHEMA; *)

ENTITY b_spline_curve
SUPERTYPE OF ((ONEOF
	(b_spline_curve_with_knots, 
	uniform_curve, 
	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
	WRB1 : ('STRUCTURAL_FRAME_SCHEMA.UNIFORM_CURVE' IN TYPEOF(self)) OR
		 ('STRUCTURAL_FRAME_SCHEMA.QUASI_UNIFORM_CURVE' IN TYPEOF(self)) OR
		 ('STRUCTURAL_FRAME_SCHEMA.BEZIER_CURVE' IN TYPEOF(self)) OR
		 ('STRUCTURAL_FRAME_SCHEMA.B_SPLINE_CURVE_WITH_KNOTS' IN TYPEOF(self));
END_ENTITY;  (*  STEP Part 42 (unchanged in 2nd edition)  *)

Explicit Attributes

Entity b_spline_curve has the following local and inherited explicit attributes:
AttributeTypeDefined By
 namelabel (STRING)representation_item
 degreeINTEGERb_spline_curve
 control_points_listLIST OF cartesian_point (ENTITY)b_spline_curve
 curve_formb_spline_curve_form (ENUM)b_spline_curve
 closed_curveLOGICALb_spline_curve
 self_intersectLOGICALb_spline_curve

Derived Attributes

Entity b_spline_curve has the following local and inherited derived attributes:
AttributeTypeDefined By
 dimdimension_count (INTEGER)geometric_representation_item
 upper_index_on_control_pointsINTEGERb_spline_curve
 control_pointsARRAY 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:
DefinitionTypeReferenced Entity
 acyclic_curve_replica FUNCTION curve
 acyclic_mapped_representation FUNCTION representation_item
 assembly_with_bounding_box ENTITY representation_item
 axis1_placement ENTITY geometric_representation_item
 axis2_placement_2d ENTITY geometric_representation_item
 bounded_curve ENTITY b_spline_curve
 brep_2d ENTITY geometric_representation_item
 build_transformed_set FUNCTION curve
 cartesian_transformation_operator_2d ENTITY geometric_representation_item
 cartesian_transformation_operator_3d ENTITY geometric_representation_item
 composite_curve_segment ENTITY curve
 curve ENTITY bounded_curve
 curve_replica ENTITY curve
 degenerate_pcurve ENTITY geometric_representation_item
 dimension_of FUNCTION geometric_representation_item
 edge_curve ENTITY curve
 element_curve_complex ENTITY curve
 element_surface_profiled ENTITY curve
 fastener_simple_curved ENTITY curve
 feature_volume_curved ENTITY curve
 fixed_reference_swept_surface ENTITY curve
 founded_item_select SELECT representation_item
 geometric_representation_item ENTITY curve
 geometric_set_select SELECT curve
 half_space_2d ENTITY curve
 item_defined_transformation ENTITY representation_item
 item_in_context FUNCTION representation_item
 load_element_distributed_curve ENTITY curve
 load_member_distributed_curve ENTITY curve
 mapped_item ENTITY representation_item
 move ENTITY curve
 offset_curve_2d ENTITY curve
 offset_curve_3d ENTITY curve
 part_prismatic_complex ENTITY curve
 part_prismatic_simple_curved ENTITY curve
 part_sheet_profiled ENTITY curve
 pcurve ENTITY geometric_representation_item
 point_on_curve ENTITY curve
 primitive_2d ENTITY geometric_representation_item
 rational_b_spline_curve ENTITY b_spline_curve
 representation ENTITY representation_item
 representation_item ENTITY geometric_representation_item
 representation_map ENTITY representation_item
 revolved_area_solid ENTITY geometric_representation_item
 revolved_area_solid ENTITY curve
 revolved_area_solid ENTITY representation_item
 revolved_face_solid ENTITY curve
 revolved_face_solid ENTITY geometric_representation_item
 revolved_face_solid ENTITY representation_item
 section_profile_centreline ENTITY curve
 section_profile_edge_defined ENTITY bounded_curve
 select_generic_item SELECT representation_item
 solid_replica ENTITY geometric_representation_item
 surface_curve ENTITY curve
 surface_curve_swept_area_solid ENTITY curve
 surface_curve_swept_face_solid ENTITY curve
 surface_curve_swept_surface ENTITY curve
 surface_of_revolution ENTITY curve
 swept_surface ENTITY curve
 trimmed_curve ENTITY curve
 volume ENTITY geometric_representation_item
 weld_mechanism_prismatic ENTITY curve


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2023-03-25T00:11:38-04:00