NAME

window - makes an image file a sub-section of itself

SYNOPSIS

window fits_file box= [outfile=]

DESCRIPTION

This routine replaces the file in the command line with only those rows and columns specified box.

OPTIONS

box= limits the region over which the calculation applies. See discussion box specification.

outfile= specifies that a a new image, consisting only of the rows and columns within the box, is created and called by the given name; in this case, the image in file1.fits is left unmodified. The fits header is copied and NAXIS1 and NAXIS2 are modified to reflect the new size. Also the World Coordinate System,if it exists, is adjusted.

EXAMPLE

window alphalyr box=10,20,100,200
Cuts the file alphalyr.fits down to contain only those rows and columns starting at row=10, col=20 and having 100 rows and 200 columns on a side. All data outside of the box is deleted.

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