Hello,

I am generating .png images using the Cairo package in a for loop (looping on the number of zones, number of zones equals the number of plots to create based on different zone data). When I run the R script the .png files are created but they are all black? If I comment out the for loop and force my zones to equal one the png file is created correctly? Is there an issue with generating .png files within a for loop?

Create .png commands within for loop:

CairoPNG(paste(t.g), width=800, height=600, pointsize=12, bg="white")
   xyplot(areasqmi ~ value, x.p, groups=dur,
   main=(t.n), ylab=expression("Area(mi" ^ 2 * ")"),
   xlab="Maximum Average Depth of Percipitation (inches)",
   scales=list(y=list(log=TRUE)), ylim=c(1,1000000), type='l',
   auto.key=list(space='right'))
dev.off()

--
---------------------------------
Douglas M. Hultstrand, MS
Senior Hydrometeorologist
Metstat, Inc. Windsor, Colorado
voice: 970.686.1253
email: dmhul...@metstat.com
web: http://www.metstat.com

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