Why not plot directly to a bitmapped format, using bmp() or png()? That way you can create a large 'display region' when you open the device.
BTW, I guess you are on Windows but you did not say so: bmp() only exists on Windows. On Wed, 30 May 2007, Felicity Jones wrote: > > Dear R wizards, > > I am seeking advice on graphics in R. Specifically, how to manipulate > the size and save a plot I have produced using the LDheatmap library. > I confess I am relatively new to graphics in R, but I would greatly > appreciate any suggestions you may have. > > LDheatmap produces a coloured triangular matrix of pairwise > associations between 600 genetic markers in my dataset. Initially the > graphical output was confined to the computer screen, such that each > pairwise marker association was displayed as approximately 1 pixel > (too small for me to interpret). > > I have successfully managed to play with the LDheatmap function to > enlarge the size of viewport by changing the following code in > LDheatmap > > #From > > heatmapVP <- viewport(width = unit(0.8, "snpc"), height = unit(0.8, "snpc"), > name=vp.name) > > #To > heatmapVP <- viewport(width = unit(25, "inches"), height = unit(25, > "inches"), name=vp.name) > > This produces a much larger plot (so big that the majority is not seen > on the screen). I would like to save the entire thing so that I can > import it into photoshop or some other image software. > > My problem is that when I save using the R graphics console > (File->Save As->bmp), it only saves the section I can see on the > screen. Any suggestions on how to save the whole plot or manipulate > the plot so I get higher resolution would be much appreciated. > > Thanks for your help in advance, > > Felicity. > Dr Felicity Jones > Department of Developmental Biology > Stanford University School of Medicine > Beckman Center > 279 Campus Drive > Stanford CA 94305-5329 > USA -- Brian D. Ripley, [EMAIL PROTECTED] 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 ______________________________________________ R-help@stat.math.ethz.ch 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.