PostScript DISPLAY DRIVER
PS display driver to create PostScript files.
The PS driver generates a PostScript file from GRASS display commands.
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.
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.
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.
Cairo driver,
PNG driver,
HTML driver,
variables
d.rast,
d.vect,
d.mon,
d.erase,
d.redraw
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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GRASS Development Team,
GRASS GIS 8.5.0dev Reference Manual