b_spline_curve_with_knots

EXPRESS specification:

ENTITY b_spline_curve_with_knots
SUBTYPE OF ( | b_spline_curve);
knot_multiplicities | : | LIST [2:?] OF INTEGER;
knots | : | LIST [2:?] OF parameter_value;
knot_spec | : | knot_type;
DERIVE
upper_index_on_knots | : | INTEGER := SIZEOF(knots);
WHERE
WRB2 | : | constraints_param_b_spline(degree, upper_index_on_knots, upper_index_on_control_points, knot_multiplicities, knots);
WRB3 | : | SIZEOF(knot_multiplicities) = upper_index_on_knots;
END_ENTITY;

References (1):

Name | Type | Referred through | Express-G
b_spline_curve | Entity |
Subtype
| No Diagram

Inheritance graph

ENTITY b_spline_curve_with_knots;
ENTITY representation_item;
name | : | label;
ENTITY geometric_representation_item;
DERIVE
dim | : | dimension_count := dimension_of(SELF);
ENTITY curve;
ENTITY bounded_curve;
ENTITY b_spline_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 [0:100] OF cartesian_point := list_to_array(control_points_list, 0, upper_index_on_control_points);
ENTITY b_spline_curve_with_knots;
knot_multiplicities | : | LIST [2:?] OF INTEGER;
knots | : | LIST [2:?] OF parameter_value;
knot_spec | : | knot_type;
DERIVE
upper_index_on_knots | : | INTEGER := SIZEOF(knots);
END_ENTITY;