[R-sig-Geo] Error in execution of lattice code

[Edzer Pebesma]

It seems that the R graphics system cannot find the font mentioned. 
Maybe try r-sig-mac for this question?
--
Edzer

Waichler, Scott R wrote:
> The following code runs fine on Linux, but not on my Mac.  The error
> message is given below, after the levelplot() call.  I was able to run
> lattice functions previously on the Mac without any problems.  The only
> change I'm aware of is that my Mac was recently worked on by a system
> administrator to implement some system and security changes.  I don't
> know how that would be related to this problem.  I searched R-help and
> found a similar problem that wasn't answered.
>
>   
>> sessionInfo()
>>     
> R version 2.8.0 (2008-10-20)
> powerpc-apple-darwin8.11.1
>
> locale:
> C
>
> attached base packages:
> [1] stats     graphics  grDevices utils     datasets  methods   base
>
> loaded via a namespace (and not attached):
> [1] tools_2.8.0
>
> library(lattice)
> # code from help(levelplot)
> x <- seq(pi/4, 5 * pi, length = 100)
> y <- seq(pi/4, 5 * pi, length = 100)
> r <- as.vector(sqrt(outer(x^2, y^2, "+")))
> grid <- expand.grid(x=x, y=y)
> grid$z <- cos(r^2) * exp(-r/(pi^3))
> png(file = "junk.png", width=8.5, height=11, units="in", res=75,
> pointsize=12)  # letter
> levelplot(z~x*y, grid, cuts = 50, scales=list(log="e"), xlab="",
>          ylab="", main="Weird Function", sub="with log scales",
>          colorkey = FALSE, region = TRUE)
>
> Error in grid.Call("L_textBounds", as.graphicsAnnot(x$label), x$x, x$y,
> :
>   Polygon edge not found
> In addition: Warning message:
> In grid.Call("L_textBounds", as.graphicsAnnot(x$label), x$x, x$y,  :
>   no font could be found for family "Arial"
>
> dev.off()
>
> Thanks for any help you can provide,
>
> Scott Waichler
> Pacific Northwest National Laboratory
> scott.waichler at pnl.gov
>
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>   

-- 
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.springer.com/978-0-387-78170-9 e.pebesma at wwu.de