gmnmx(3G)gmnmx(3G)NAME
gmnmx - gets data computed by minmax
FORTRAN SPECIFICATION
subroutine hstgrm(hist )
PARAMETERS
minmax is the destination for the minmax data specified with minmax.
Minmax must have at least 2 x (number of components per pixel)
elements.
DESCRIPTION
getminmax returns the minimum and maximum values from the graphics system
to the CPU memory. The ordering of the components within the array is
determined by pixmode(PM_INPUT_FORMAT,format). For example, for format
of PM_RGB, the returned float array looks like {red_min, red_max,
green_min, green_max, blue_min, blue_max}. Note that this is
inconsistent with gethistogram. The returned minimum and maximum values
may be negative and positive infinity if no pixel transfer operation
occured after a MINMAX_INIT. The returned values are always floating
point values regardless of input types.
SEE ALSO
histogram minmax gethistogram pixeltransfer pixelmap pixmode
NOTES
getminmax only works on RealityEngine systems running 5.0.1 or greater.
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