search for: postscripttrac

I couldn't run PostScriptTrace() from the package "grImport" without an error. At first the postscript program couldn't be found. however the problem persisted after the full path the postscript program was indicated. I read earlier post on the subject in vain. See the codes and output below. The file "Senega...

...for further manipulation using either base graphics or grid. I downloaded the most recent version of Ghostscript from http://www.cs.wisc.edu/~ghost/ that I could find (v.8.56) for Mac OSX. However, I am apparently quite ignorant about how the required Ghostscript software works. When I run PostScriptTrace after loading the grImport package, I get this response: > PostScriptTrace("/Users/erinberryman/Documents/data.ps") Error in PostScriptTrace("/Users/erinberryman/Documents/data.ps") : status 256 in running command 'gs -q -dBATCH -dNOPAUSE - sDEVICE=pswrite -sOutpu...

...ted the R_GSCMD environment variable pointing to gswin32c.exe. I don't have any experience with Ghostscript, but with the setup described above I can view the postscript file with the following command to the Windows command prompt: gswin32c.exe D:\Sndbx\vasarely.ps However, I can't get the PostScriptTrace() function to work on the same file. Submitting PostScriptTrace("D:/Sndbx/vasarely.ps") gives me the error: Error in PostScriptTrace("D:/Sndbx/vasarely.ps") : status 127 in running command 'gswin32c.exe -q -dBATCH -dNOPAUSE -sDEVICE=pswrite -sOutputFile=C:\Users\Al\AppDa...

Hello, I am trying to import an .eps file created with Adobe Illustrator and plot it in a Quartz window (I am using R 2.11.1 GUI 1.34 Leopard build 32-bit (5589) on MacOSx.5.8). I thought of using the PostScriptTrace() to convert my .eps file to RGML, and then use readPicture to plot the file, but the first step already fails (cf below). I also had a look at the add.image( ) example, which does work on my screen. Ultimately, I would like to plot my picture and let the user click on different parts to...

...to a new location -10 20 10 20 5 10 curveto % curve to a third location 5 10 lineto % line to a fourth location closepath % connect back to the start location 0 setgray % set the drawing colour to black fill % fill the current shape" cat(petal.ps, file="petal.ps") library(grImport) PostScriptTrace("petal.ps") petal <- readPicture("petal.ps.xml") grid.symbols(petal, 1:10/10, 1:10/10, size=0.1) # OK grid.symbols(petal, 1:10/10, 1:10/10, size = seq(0.01, 0.1, length=10)) # Warning and weird shapes sessionInfo() R version 2.13.1 (2011-07-08) Platform: i386-apple-darwin...

Hi, I'd like to fill an existing svg (or png) map with gradient colors. In detail: The file http://commons.wikimedia.org/wiki/File:Karte_%C3%96sterreich_Bundesl%C3%A4nder.svg should be filled with the population density data from this table: http://de.wikipedia.org/wiki/%C3%96sterreich#Verwaltungsgliederung choosing the right color saturation (or whatever). The final result should be something

I am trying to add a copyright disclaimer outside the plot borders of some images I have created. I can use mtext() to add the written portion, but I would like to have the Creative Commons license image (http://en.wikipedia.org/wiki/File:Cc.logo.circle.svg) before the text. I've found that I can plot a .png image inside the plot boundaries using rasterImage() but I can't figure out how to

Hi everyone I'd like to flip grobs (grid graphical objects) along an axis, e.g. flip grobs horizontally or vertically. I couldn't find any hints, neither in the documentation nor by searching the web. Does anybody know how to achieve this? Cheers /thomas

I'd like to paste a zodiac sign on a graph, but it only prints it when I add another unicode ( \u3030) to the desired \u2648 - why? See the examplecode (compare the orange with the skyblue): plot(c(-1,1),c(-4,-2),type="n") text(x=0,y=-3.0,labels="\u2648 \u3030",cex=2.3,col="skyblue") text(x=0,y=-3.2,labels="\u2648",cex=2.3,col="orange")