Provided by: wcslib-tools_6.2-2_amd64
wcsgrid - Extract FITS WCS keywords and plot graticule
wcsgrid [-a<alt>] [-d<pgdev>] [-h<hdu>] [<fitsfile>]
wcsgrid extracts the WCS keywords for an image from the specified FITS file and uses pgsbox() to plot a 2-D coordinate graticule for each alternate representation found. The FITS file may be specified according to the syntax understood by cfitsio, for example "file.fits.gz+1" refers to the first extension of a gzip'd FITS file. Use "-" or omit the file name for input from stdin.
-a<alt> Plot a graticule only for the alternate representation specified (ignored if there is only one). -d<pgdev> PGPLOT device type (default XWINDOW, use "?" for list). -h<hdu> Move to HDU number (1-relative) which is expected to contain an image array. (Useful for input from stdin.)