pntsiz(3G)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.
DESCRIPTIONpntsiz 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.
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