xenial (1) psdriver.1grass.gz

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PostScript DISPLAY DRIVER
       PS display driver to create PostScript files.


DESCRIPTION
       The PS driver generates a PostScript file from GRASS display commands.


USAGE
   Environment variables
       The PS driver can be enabled by setting GRASS_RENDER_IMMEDIATE variable, eg.
       export GRASS_RENDER_IMMEDIATE=ps
       Several environment variables affect the operation of the PS driver:

           •   GRASS_RENDER_WIDTH=xxx
               the width of the image map (default is 640).

           •   GRASS_RENDER_HEIGHT=yyy
               the height of the image map (default is 480).

           •   GRASS_RENDER_TRUECOLOR=[TRUE|FALSE]
               sets true-color support. Default is FALSE.

           •   GRASS_RENDER_FILE
               name of output file. If it ends with ".eps" an EPS file will be created.

           •   GRASS_RENDER_PS_PAPER
               sets the screen dimensions and margins to fit a standard paper size, see also GRASS_RENDER_WIDTH,
               GRASS_RENDER_HEIGHT.

           •   GRASS_RENDER_PS_LANDSCAPE
               if TRUE, the screen is rotated 90 degrees counter-clockwise so that  a  "landscape"  screen  fits
               better on "portrait" paper.

           •   GRASS_RENDER_PS_HEADER
               if  FALSE,  the  output  is  appended  to  any existing file, and no prolog or setup sections are
               generated.

           •   GRASS_RENDER_PS_TRAILER
               if FALSE, no trailer section is generated.

   Example
       export GRASS_RENDER_IMMEDIATE=ps
       export GRASS_RENDER_TRUECOLOR=TRUE
       g.region raster=elevation
       d.rast elevation
       d.vect roadsmajor color=red
       This writes a file named map.ps in your current directory.


NOTES
       The resolution of the output files is defined by current region extents.  Use  g.region  -p  to  get  the
       number  of  rows  and  cols  and use the environment variables to set the image size. If you would like a
       larger image, multiply both rows and cols by the same whole number to preserve the aspect ratio.

       GRASS_RENDER_TRUECOLOR requires either PostScript level 2 or level 1 plus the colorimage and  setrgbcolor
       operators (this is the case for colour printers which pre-date level 2 PostScript).

       Masked images (d.rast, d.rgb, d.his -n) require PostScript level 3.


SEE ALSO
        Cairo driver, PNG driver, HTML driver, variables
       d.rast, d.vect, d.mon, d.erase, d.redraw


AUTHOR
       Glynn Clements, 2007

       Last changed: $Date: 2014-12-19 22:55:37 +0100 (Fri, 19 Dec 2014) $

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