FUNCTION constraints_composite_curve_on_surface
(c : composite_curve_on_surface) : BOOLEAN;
LOCAL n_segments : INTEGER := SIZEOF(c.segments); END_LOCAL; REPEAT k := 1 TO n_segments; IF (NOT('GEOMETRY_SCHEMA.PCURVE' IN TYPEOF(c\composite_curve.segments[k].parent_curve))) AND (NOT('GEOMETRY_SCHEMA.SURFACE_CURVE' IN TYPEOF(c\composite_curve.segments[k].parent_curve))) AND (NOT('GEOMETRY_SCHEMA.COMPOSITE_CURVE_ON_SURFACE' IN TYPEOF(c\composite_curve.segments[k].parent_curve))) THEN RETURN (FALSE); END_IF; END_REPEAT; RETURN(TRUE); END_FUNCTION; -- constraints_composite_curve_on_surface
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