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20011005: Postscript driver and size...

>From: Christian Page <address@hidden>
>Organization: UCAR/Unidata
>Keywords: 200110050803.f95832117210

>
>Hi,
>
>I saw in earlier support messages that the PSC driver only supports 8.5x11 and
>11x17 paper size. I am creating postscript images then convert them to gif usi
> ng
>convert (ImageMagick). See an example at
>http://meteocentre.com/analyse/local/mtl.gif
>
>I fighted with the DEVICE parameter to get an exact same output using TIFF or
>GIF drivers without any success, I would like to produce an image like that bu
> t
>smaller. Is it possible to do? Using -geometry in convert is not an option sin
> ce
>all text, labels and station plots are then too small to read...
>
>Christian Page
>UQAM
>
>

Christian,

The PS driver supports 8.5x11" and 11x17" in the prologue because most
postscript printers that support multiple trays recognize those
sizes in order to select the paper tray. Our printer for example has a little 
tab on the tray that lets the printer know what size tray/paper it has
in each feeder.

Your mtl.gif is 758x422. You say you want smaller.

You can adjust both the TEXT size as well as the symbol sizes to get
readable results with the drivers as you shrink the size down.

For example, I get what I consider very readable results with the GIF 
driver using the following in SFMAP:

SFPARM   = skyc;tmpf;wsym:.6;smsl;ptnd:.6;dwpf;stid;;vsby;brbk:.6
TEXT     = .7/1/1/hw
DEVICE   = gif|sfmap.gif|700;400
FILTER   = .8

The key I find is getting the symbol sizes a little smaller (such as .6 as
shown above) in order to keep them from cluttering the image. The GIF
size above a 700x400 would be smaller than what I find on your page.

Steve Chiswell