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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)

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