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gleHelicoid(3GLE)                     GLE                    gleHelicoid(3GLE)

NAME
       gleHelicoid - Generalized torus, spiral with circle contour.

SYNTAX

       void gleHelicoid (gleDouble rToroid,
                         gleDouble up[3],
                         gleDouble startRadius,
                         gleDouble drdTheta,
                         gleDouble startZ,
                         gleDouble dzdTheta,
                         gleDouble startXform[2][3],
                         gleDouble dXformdTheta[2][3],
                         gleDouble startTheta,
                         gleDouble sweepTheta);

ARGUMENTS
       rToroid   circle contour (torus) radius

       startRadius
                 spiral starts in x-y plane

       drdTheta  change in radius per revolution

       startZ    starting z value

       dzdTheta  change in Z per revolution

       startXform
                 starting contour affine transformation

       dXformdTheta
                 tangent change xform per revolution

       startTheta
                 start angle in x-y plane

       sweepTheta
                 degrees to spiral around

DESCRIPTION
       Generalized Torus. Similar to gleSpiral, except contour is a circle.
       Uses gleSpiral to draw.

SEE ALSO
       gleSpiral, gleToroid

AUTHOR
       Linas Vepstas (linas@fc.net)

GLE                                   3.6                    gleHelicoid(3GLE)