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> Hi, gempak support staff, > > I was wondering if I can use gdplot to plot GIF file in white background? > Also, can I make bigger GIF file? Thank you very much for your help. > > Huiya > > -- > Hui-Ya Chuang > Research Meteorologist > NOAA /NCEP /EMC > 301.763.8000 x7219 > > Hui-Ya, You can control the size of the GIF file by setting the xsize;ysize values in the DEVICE parameter, eg: DEVICE = gf|outfile.gif|1200;1000 The background color can be set by either: 1) in a program at the GEMPAK prompt type: COLORS = 101=white before typing "run" to open the deive driver. Color index 101 is the background index as mentioned in the online help for COLORS (eg "phelp color"). 2) copy $GEMTBL/colors/coltbl.xwp to your local working directory and change the first color index from black to white before running the GEMPAK program which opens the GIF device. In the Unidata GEMPAK distribution, I provide a file $GEMTBL/colors/coltbl.xwp_white which is configured as mentioned above: ! COLTBL.XWP ! ! XWP and XW color table for white background ! !Color name Abrev Red Green Blue X color name WHITE WHI 255 255 255 white VANILLA VAN 255 228 220 bisque1 RED RED 255 0 0 red <etc.> Creating a symbolic link from that this color table to coltbl.xwp in the working directory provides a simple method for generating white backgrounds from a script. Steve Chiswell Unidata User Support Ticket Details =================== Ticket ID: TZD-265839 Department: Support GEMPAK Priority: Normal Status: Closed