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PostScript DISPLAY DRIVER

Table of contents

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:

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

SOURCE CODE

Available at: PostScript DISPLAY DRIVER source code (history)

Latest change: Monday Nov 25 21:48:59 2024 in commit: 370a492900ccb7f04ec9e7da9d2766ce1a3d66b6


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