pntsize(3G)							   pntsize(3G)

NAME    [Toc]    [Back]

     pntsize, pntsizef - specifies size	of points

C SPECIFICATION    [Toc]    [Back]

     void pntsize(n)
     short n;

     void pntsizef(n)
     float n;

PARAMETERS    [Toc]    [Back]

     n	  is the size of the point.  The size is measured in pixels and	is one
	  by default.

DESCRIPTION    [Toc]    [Back]

     pntsize and pntsizef specify the size of a	point.	Mathematical points
     have no size, but to display a point, it must be assigned a size.	The
     center of the displayed point is as close as possible to the mathematical
     point.  If	antialiased point drawing is not enabled, and multisample is
     not enabled, or multisample buffers do not	exist in the current
     framebuffer configuration in the current drawmode,	n indicates the	number
     of	pixels drawn across the	x and y	axes, and is rounded to	the nearest
     integer.  Otherwise, n indicates the point	diameter in units of pixels,
     and is rounded to the nearest supported value.

     Rounding affects only the value of	n that is actually used, not the value
     that is retained.

SEE ALSO    [Toc]    [Back]

     pntsmooth

NOTES    [Toc]    [Back]

     The maximum size of aliased points	is 255.

     IRIS-4D VGX model supports	antialiased point sizes	1.0 and	2.0, and
     aliased point sizes one through 255.  IRIS-4D GT and GTX models support
     antialiased point size 1.0, and aliased point sizes one and two.  IRIS-4D
     G models, Personal	Iris, Iris Entry, Indy,	XL, XS,	XS24, XZ, Elan and
     Extreme systems support only point	size one.

     In	order to select	or pick	a large	point in selecting or picking mode
     respectively, the selecting region	must intersect the displayed point
     center.  This center is the imaginary point of size 1 specified by	the
     same vertex as the	displayed point.  In case of a very large point, you
     may want to consider drawing a filled circle instead.


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