Hi I want to use grImport to create a watermark on a plot() using the methods Paul Murrell describes here: http://cran.r-project.org/web/packages/grImport/vignettes/import.pdf (page 28). I can essentially reproduce this manually at the R prompt, and independently I can use grid.picture( ) successfully in a R script, but when I attempt to do do this in my script:
postscript(outputFilename,paper="us") grid.picture(noaalogo,distort=FALSE,width=0.5,x=0.50,y=0.50) grid.rect(gp=gpar(fill=rgb(1,1,1,0.9))) plot(dat,xaxt="n",type="b",ylim=c(y_range[1],y_range[2]),main=labelStr,xlab="Date",ylab="Elevation, NAVD88 (Ft)") dev.off() The picture "noaalogo" is drawn, but either the plot() is obscured or is not drawn at all. In either case, the "watermarking" effect is not happening in my script, but does work as expected, manually, at the R prompt. I'm sure this is a graphics device related issue, but I have not been able to find a solution through my searches. Thank you, Tom -- Thomas E Adams Development & Operations Hydrologist National Weather Service Ohio River Forecast Center 1901 South State Route 134 Wilmington, OH 45177 http://www.erh.noaa.gov/er/ohrfc/ EMAIL: thomas.ad...@noaa.gov VOICE: 937-383-0528 FAX: 937-383-0033 [[alternative HTML version deleted]]
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