[R-sig-Geo] plot() and Jpeg() increase font size and resolution

[Alexander.Herr at csiro.au]

Dear list,

I am having troubles increasing the fontize when plotting a
variogram{gstat} and its model (vgm) with plot and using jpeg(). Also
the resolution in the jpeg call does not work. I am using R2.4 on
Mandriva 10.2 linux.

I can change fontsize with cex.axis in a normal plot, so I presume it
has to do with plotting the variogram model. Any help on how to increase
the font size and resolution would be appreciated?

R-calls:
v1<-variogram(log(z)~x+y, loc=coordinates(shp1),data=shp1)
m1<-vgm(0.0175, "Gau", 200000,0.052)

jpeg(file="LOTPLAN_variogram_mod.jpg", bg="white", res=300,
pointsize=16, width=1200, height=1200, quality=100)

 plot(v1,plot.number=F, model=m1, ylim=c(0.04,0.08), col="black",
cex.axis=1.5)

dev.off()

Thanks Herry

Dr Alexander Herr
Spatial and statistical analyst
CSIRO, Sustainable Ecosystems
Davies Laboratory,
University Drive, Douglas, QLD 4814 
Private Mail Bag, Aitkenvale, QLD 4814
 
Phone/www 
(07) 4753 8510; 4753 8650(fax)
Home: http://herry.ausbats.org.au
Webadmin ABS: http://ausbats.org.au
Sustainable Ecosystems: http://www.cse.csiro.au/