FUNCTION msf_curve_check

(* SCHEMA technical_data_packaging; *)

  FUNCTION msf_curve_check(
               cv: representation_item
      ): BOOLEAN;
    IF SIZEOF(['TECHNICAL_DATA_PACKAGING.BOUNDED_CURVE',
        'TECHNICAL_DATA_PACKAGING.CONIC',
        'TECHNICAL_DATA_PACKAGING.CURVE_REPLICA',
        'TECHNICAL_DATA_PACKAGING.LINE',
        'TECHNICAL_DATA_PACKAGING.OFFSET_CURVE_3D'] * TYPEOF(cv)) > 1 THEN
      RETURN(FALSE);
    END_IF;
    IF (('TECHNICAL_DATA_PACKAGING.B_SPLINE_CURVE' IN TYPEOF(cv)) AND (cv\
        b_spline_curve.self_intersect = FALSE)) OR (cv\b_spline_curve.
        self_intersect = UNKNOWN) THEN
      RETURN(TRUE);
    ELSE
      IF SIZEOF(['TECHNICAL_DATA_PACKAGING.CONIC',
          'TECHNICAL_DATA_PACKAGING.LINE'] * TYPEOF(cv)) = 1 THEN
        RETURN(TRUE);
      ELSE
        IF 'TECHNICAL_DATA_PACKAGING.CURVE_REPLICA' IN TYPEOF(cv) THEN
          RETURN(msf_curve_check(cv\curve_replica.parent_curve));
        ELSE
          IF ('TECHNICAL_DATA_PACKAGING.OFFSET_CURVE_3D' IN TYPEOF(cv)) 
              AND ((cv\offset_curve_3d.self_intersect = FALSE) OR (cv\
              offset_curve_3d.self_intersect = UNKNOWN)) AND (NOT (
              'TECHNICAL_DATA_PACKAGING.POLYLINE' IN TYPEOF(cv\
              offset_curve_3d.basis_curve))) THEN
            RETURN(msf_curve_check(cv\offset_curve_3d.basis_curve));
          ELSE
            IF 'TECHNICAL_DATA_PACKAGING.PCURVE' IN TYPEOF(cv) THEN
              RETURN(msf_curve_check(cv\pcurve.reference_to_curve\
                  representation.items[1]) AND msf_surface_check(cv\pcurve.
                  basis_surface));
            ELSE
              IF 'TECHNICAL_DATA_PACKAGING.SURFACE_CURVE' IN TYPEOF(cv)
                   THEN
                IF msf_curve_check(cv\surface_curve.curve_3d) THEN
                  REPEAT i := 1 TO SIZEOF(cv\surface_curve.
                      associated_geometry) BY 1;
                    IF 'TECHNICAL_DATA_PACKAGING.SURFACE' IN TYPEOF(cv\
                        surface_curve.associated_geometry[i]) THEN
                      IF NOT msf_surface_check(cv\surface_curve.
                          associated_geometry[i]) THEN
                        RETURN(FALSE);
                      END_IF;
                    ELSE
                      IF 'TECHNICAL_DATA_PACKAGING.PCURVE' IN TYPEOF(cv\
                          surface_curve.associated_geometry[i]) THEN
                        IF NOT msf_curve_check(cv\surface_curve.
                            associated_geometry[i]) THEN
                          RETURN(FALSE);
                        END_IF;
                      END_IF;
                    END_IF;
                  END_REPEAT;
                  RETURN(TRUE);
                END_IF;
              ELSE
                IF 'TECHNICAL_DATA_PACKAGING.POLYLINE' IN TYPEOF(cv) THEN
                  IF SIZEOF(cv\polyline.points) >= 3 THEN
                    RETURN(TRUE);
                  END_IF;
                END_IF;
              END_IF;
            END_IF;
          END_IF;
        END_IF;
      END_IF;
    END_IF;
    RETURN(FALSE);

  END_FUNCTION; -- msf_curve_check

Referenced By

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2012-03-27T17:18:35-04:00