pntsiz(3G)

NAME
     pntsiz, pntszf - specifies size of points

FORTRAN 77 SPECIFICATION
     subroutine pntsiz(n)
     integer*4 n

     subroutine pntszf(n)
     real n

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

DESCRIPTION
     pntsiz and pntszf 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
     pntsmo

NOTES
     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.