[R-sig-Geo] simple spplot problem (colorkey inside the plotting area)

[Edzer Pebesma]

Dear Rainer,

spplot is a wrapper function around levelplot (for grids, polygons and
lines) or xyplot (for points), both in package lattice.

As the documentation mentions, the key.space argument is only available
for points, where it is passed (as key argument) to xyplot.

I looked up the documentation of ?levelplot (after loading lattice), and
although it does have x and y componenents for the colorkey, it does
explicitly mention that these are not implemented. The only things you
can modify are the key height/width, and the space argument ('bottom',
'left', 'right', 'top'). I do not see a possibility to move the key to
wherever you want.

I cc:'d this message to Deepayan Sarkar, the lattice author, maybe he
has a suggestion where to look next.

On 03/16/2011 10:48 AM, Stowasser Rainer wrote:
> Hy Georg 
> For me it does not work
> 
> Here s the Code
> 
> # Rdata from http://gadm.org/countryies for Austria Bundesländer
> load("AUT_adm1.RData")
> library(sp)
> library(RColorBrewer)
> #percent per Bundesland in the correct order
> proznormal09=c(3.76,6.57,24.52,18.05,6.59,13.94,6.91,3.74,15.91)
> #produce factor
>  bundeslfakt <- as.factor(as.numeric(cut(proznormal09, c(0,4,7,10,13,16,19,100)))
> levels(bundeslfakt) <- c("<4%", "4-7%", "13-16%", "16-19%",">19%")
> gadm$bundeslfakt <-bundeslfakt
> #the plot
> spplot(gadm, "bundeslfakt", col.regions=brewer.pal(5,"Reds"), main="Prozentverteilung nach Herkunftsbundesl\u00E4nder",key.space=list(x=0,y=0,corner=c(0,0)))
> 
> produces a plot with the colorkey on the right side
> key.space is ignored
> 
> I hope you can reproduce the Effect ;-)
> or tell me where I went wrong
> 
> Rainer
> 
> -----Ursprüngliche Nachricht-----
> Von: Georg Ruß [mailto:research at georgruss.de] 
> Gesendet: Dienstag, 15. März 2011 20:08
> An: Stowasser Rainer
> Cc: r-sig-geo at r-project.org
> Betreff: Re: [R-sig-Geo] simple spplot problem (colorkey inside the plotting area)
> 
> On 15/03/11 16:42:15, Stowasser Rainer wrote:
>> I'm using spplot to color regions of Austria
>> Everything works fine
>> But I like to have the colorkey INSIDE the plotting area (in the Bavaria
>> window :-)
>>
>> space just puts it outside (top, bottom, left, right)
>>
>> as the spplot is a lattice object it should be possible
>>
>> I've tried the examples from http://r-spatial.sourceforge.net/gallery/
>> With the key.space=list(x=0.2,y=0.9,corner=c(0,1))
>> But this is simply ignored
> 
> Hi Rainer,
> 
> I'm not sure whether I can help, but as soon as I include a
> "key.space=list(x=0, y=0, corner=c(0,0))" into an spplot call, the color
> key wanders into the plotting rectangle. The (minimal) full call here is:
> 
> print(spplot(sppdf, zcol = i, key.space=list(x=0,y=0.01,corner=c(0,0))))
> 
> (inside the postscript device for producing eps figures)
> 
> If you have, maybe post some code that we can try; or the structure of
> your data frame and some further lines to experiment with.
> 
> Regards,
> Georg.

-- 
Edzer Pebesma
Institute for Geoinformatics (ifgi), University of Münster
Weseler Straße 253, 48151 Münster, Germany. Phone: +49 251
8333081, Fax: +49 251 8339763  http://ifgi.uni-muenster.de
http://www.52north.org/geostatistics      e.pebesma at wwu.de