[R] Using grImport to create a watermark
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]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Using grImport to create a watermark
I suspect you need a device supporting translucency: PostScript does not and hence postscript() cannot. Try the pdf() device (and convert the output if you need it). On 28/12/2012 17:23, Thomas Adams - NOAA Federal wrote: 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 On what OS and what device: see the posting guide 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 __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Brian D. Ripley, rip...@stats.ox.ac.uk Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UKFax: +44 1865 272595 __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Using grImport to create a watermark
Prof Ripley, I see that now; I can get the transparency to work, but even with using pdf() my plot still does not draw if I first use: 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))) Regards, Tom On Fri, Dec 28, 2012 at 1:55 PM, Prof Brian Ripley rip...@stats.ox.ac.ukwrote: I suspect you need a device supporting translucency: PostScript does not and hence postscript() cannot. Try the pdf() device (and convert the output if you need it). On 28/12/2012 17:23, Thomas Adams - NOAA Federal wrote: 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.pdfhttp://cran.r-project.org/web/packages/grImport/vignettes/import.pdf(page 28). I can essentially reproduce this manually at the R prompt, and On what OS and what device: see the posting guide 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 __** R-help@r-project.org mailing list https://stat.ethz.ch/mailman/**listinfo/r-helphttps://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/** posting-guide.html http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Brian D. Ripley, rip...@stats.ox.ac.uk Professor of Applied Statistics, http://www.stats.ox.ac.uk/~**ripley/http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UKFax: +44 1865 272595 __** R-help@r-project.org mailing list https://stat.ethz.ch/mailman/**listinfo/r-helphttps://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/** posting-guide.html http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- 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]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
