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

[Alexander.Herr at csiro.au]

Thanks to Edzer and Roger,
I can now plot with increased font sizes. However, jpeg still does not
reproduce these, nor does it show up in high quality. What I would like
to do is produce some highresolution jpegs.

Any help would be appreciated

Thanx
Herry


R2.4 on Mandriva 10.2 linux.

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/
--------------------------------------------


-----Original Message-----
From: Edzer J. Pebesma [mailto:e.pebesma at geo.uu.nl] 
Sent: Friday, November 24, 2006 5:37 PM
To: Herr, Alexander Herr - Herry (CSE, Townsville)
Cc: r-help at stat.math.ethz.ch; r-sig-geo at stat.math.ethz.ch
Subject: Re: [R-sig-Geo] plot() and Jpeg() increase font size and
resolution

plotting variograms in gstat is done through xyplot in lattice; you'll
find where it gets it's defaults by

library(lattice)
trellis.par.get()
?trellis.par.set
--
Edzer

Alexander.Herr at csiro.au wrote:
>  
> 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/
>
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>