getminmax(3G)

NAME
     getminmax -  gets data computed by minmax

C SPECIFICATION
     void getminmax(float *minmax)

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.