Hi everyone, My data consists of a system of nearly 75000 roads, available as a shapefile. When I plot the road system, by adding the individual roads with 'lines' and store it as a pdf-file with 'pdf' I get a file of size 13 MB. This is way too large to add it in my LaTeX-document, because there will be some more graphics of this type. Now I'm curious to learn wheter there is a possibility in R to shrink the file size of this graphic? I merely need it in a resolution so that it looks "smooth" when printed out. I don't know much about the storage of R graphics, but maybe there is a way to change the way the file is stored perhaps as a pixel image? Thank you very much in advance! Any tips are appreciated much! Regards Roman -- View this message in context: http://r.789695.n4.nabble.com/Shrink-file-size-of-pdf-graphics-tp3536042p3536042.html Sent from the R help mailing list archive at Nabble.com.
This was answered on this list a few days ago. See https://stat.ethz.ch/pipermail/r-help/2011-May/278029.html On Thu, 19 May 2011, Layman123 wrote:> Hi everyone, > > My data consists of a system of nearly 75000 roads, available as a > shapefile. When I plot the road system, by adding the individual roads with > 'lines' and store it as a pdf-file with 'pdf' I get a file of size 13 MB. > This is way too large to add it in my LaTeX-document, because there will be > some more graphics of this type. > Now I'm curious to learn wheter there is a possibility in R to shrink the > file size of this graphic? I merely need it in a resolution so that it looks > "smooth" when printed out. I don't know much about the storage of R > graphics, but maybe there is a way to change the way the file is stored > perhaps as a pixel image?Of course! What does ?Devices show on your unstated system and unstated R version? Most likely it will contain something like ? ?png? PNG bitmap device ? ?jpeg? JPEG bitmap device ? ?bmp? BMP bitmap device ? ?tiff? TIFF bitmap device ? ?bitmap? bitmap pseudo-device via ?Ghostscript? (if available).> Thank you very much in advance! Any tips are appreciated much!Tip: follow the footer of this message and do your homework before posting.> Regards > Roman > > ______________________________________________ > R-help at 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, ripley at 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, UK Fax: +44 1865 272595
On 19/05/2011 11:14 AM, Layman123 wrote:> Hi everyone, > > My data consists of a system of nearly 75000 roads, available as a > shapefile. When I plot the road system, by adding the individual roads with > 'lines' and store it as a pdf-file with 'pdf' I get a file of size 13 MB. > This is way too large to add it in my LaTeX-document, because there will be > some more graphics of this type. > Now I'm curious to learn wheter there is a possibility in R to shrink the > file size of this graphic? I merely need it in a resolution so that it looks > "smooth" when printed out. I don't know much about the storage of R > graphics, but maybe there is a way to change the way the file is stored > perhaps as a pixel image?There are several possibilities. You can use a bitmapped device (e.g. png()) to save the image; pdflatex can include those. You can compress the .pdf file using an external tool like pdftk (or do it internally in R 2.14.x, coming soon). There are probably others... Duncan Murdoch