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Concatenation Programs

Postscript Concatenation

This pscat program is used to set up appended postscript files for printing to a Postscript printer. Generally, when Postscript output is specified, a printable file is generated. The program may then directly send the file to the printer using the pipe option to the printer device specification. When the"append" option is set, the output file is missing the Postscript header and trailer information necessary for printing. When all plots have been appended to the file, the pscat program may be used to put the header and trailer information back on the file so that it is then printable. The output can be directly spooled to the printer if the wxpps_print environment is set.

HPGL Concatenation

This hpglcat program is used to set up appended HPGL files for printing to a HP laserprinter or plotter or device that accepts PCL5. Generally, when HPGL output is specified, a printable file is generated. The program may then directly send the file to the printer using the pipe option to the printer device specification. When the "append" option is set, the output file is missing the PCL/HPGL header and trailer information necessary for printing. When all plots have been appended to the file, the hpglcat program may be used to put the header and trailer information back on the file so that it is then printable. The output can be directly spooled to the printer if the wxphp_out environment is set.

GIF Concatenation

The gifcat program will concatenate GIF files to produce an animated GIF file. This is handy for use with a web server for animation and looping.  For example:

gifcat -s -o eta_pres_loop.gif \
   eta_pres_init.gif eta_pres_6h.gif eta_pres_12h.gif eta_pres_18h.gif \
   eta_pres_24h.gif eta_pres_30h.gif eta_pres_36h.gif eta_pres_42h.gif \
   eta_pres_48h.gif 

For further information about WXP, email technical-support@weather.unisys.com
Last updated by Dan Vietor on June 7, 1998