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.TH G128 1 "Ultrasonics Laboratory"
.SH NAME
g128 - Generate 128 x 128 Picture from Quadrants
.SH SYNOPSIS
g128
.SH DESCRIPTION
This program reads the four quadrants of a picture 
from the files
.B pic.r.[1234].
These four files are combined into a single
128 x 128 picture in the file
.B pic.r.
Each of the input files should be a
64 x 64 array of single precision floating point
numbers.
.SH FILES
.TP 8
pic.r.1
upper right input quadrant
.TP 8
pic.r.2
upper left input quadrant
.TP 8
pic.r.3
lower left input quadrant
.TP 8
pic.r.4
lower right input quadrant
.TP
pic.r
output file (128 x 128)
.SH DIAGNOSTICS
An error is printed if any of the files can not be opened.
.SH BUGS
There is no way to change the input or the output files
or to change the size of each quadrant.