Cairo driver: Difference between revisions

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  d.out.file -c sf_cairo format=png size=800,800
  d.out.file -c sf_cairo format=png size=800,800
A more complicated example using ''d.out.file'':
d.erase
d.vect -c fields type=area
d.vect streams color=aqua fcolor=aqua type=area,line
d.vect roads where="label ~ 'light-duty road'" color=grey
d.vect roads where="label ~ 'unimproved'" color=orange
d.vect roads where="label ~ 'secondary highway'" color=100:100:100  width=2
d.vect roads where="label ~ 'primary highway'" color=50:50:50 width=2
d.vect railroads col=red width=2
d.vect roads where="label = 'interstate'" color=black width=3
d.vect archsites icon=extra/fancy_compass size=40
d.out.file -c sf_c1 form=png --o

Revision as of 09:35, 22 November 2007

Cairo display driver

(under development)

based on this grass-dev thread:

http://thread.gmane.org/gmane.comp.gis.grass.devel/22786

To compile GRASS 6.3 with Cairo support, make sure you have the cairo.h include file (in Debian/Etch it's in the libcairo2-dev package)

Then build grass with:

make USE_CAIRO=1

Examples

Example using the driver directly:

export GRASS_TRUECOLOR=TRUE
export GRASS_CAIROFILE=spearfish.png
export GRASS_WIDTH=800
export GRASS_HEIGHT=800

d.mon start=cairo
d.rast map=elevation.10m
d.vect map=streams width=1 color=blue fcolor=aqua type=area,line
d.vect map=roads width=2
d.mon stop=cairo


Example using d.out.file:

d.mon x0
d.rast map=elevation.10m
d.vect map=streams width=1 color=blue fcolor=aqua type=area,line
d.vect map=roads width=2

d.out.file -c sf_cairo format=png size=800,800

A more complicated example using d.out.file:

d.erase
d.vect -c fields type=area
d.vect streams color=aqua fcolor=aqua type=area,line
d.vect roads where="label ~ 'light-duty road'" color=grey
d.vect roads where="label ~ 'unimproved'" color=orange
d.vect roads where="label ~ 'secondary highway'" color=100:100:100   width=2
d.vect roads where="label ~ 'primary highway'" color=50:50:50 width=2
d.vect railroads col=red width=2
d.vect roads where="label = 'interstate'" color=black width=3
d.vect archsites icon=extra/fancy_compass size=40

d.out.file -c sf_c1 form=png --o