Curve Routines.

curvebasis(basis)

Define a basis matrix for a curve.

    Fortran:
         subroutine curvebasis(basis)
         real basis(4,4)
    C:
         curvebasis(basis)
              float     basis[4][4];

    Pascal:
         procedure CurveBasis(basis: Matrix44_t)

curveprecision(nsegs)

Define the number of line segments used to draw a curve.

    Fortran:
         subroutine curveprecision(nsegs)
         integer nsegs
    C:
         curveprecision(nsegs)
              int  nsegs;

    Pascal:
         procedure CurvePrecision(nsegs: integer)

rcurve(geom)

Draw a rational curve.

    Fortran:
         subroutine rcurve(geom)
         real geom(4,4)
    C:
         rcurve(geom)
              float     geom[4][4];

    Pascal:
         procedure Rcurve(geom: Matrix44_t)

curve(geom)

Draw a curve.

    Fortran:
         subroutine curve(geom)
         real geom(3,4)
    C:
         curve(geom)
              float     geom[4][3];

    Pascal:
         procedure Curve(geom: Matrix43_t)

curven(n, geom)

Draw n - 3 overlapping curve segments. Note: n must be at least 4.

    Fortran:
         subroutine curven(n, geom)
         integer n
         real geom(3,n)
    C:
         curven(n, geom)
              int  n;
              float     geom[][3];

    Pascal:
         procedure Curven(n: integer; geom: GeomMat_t)