See library(grid)
?grid.cap and this page for background: http://developer.r-project.org/Raster/raster-RFC.html On Thu, May 19, 2011 at 2:19 PM, Beutel, Terry S < terry.beu...@deedi.qld.gov.au> wrote: > I'm wondering if anyone is aware of a way to take what is visible in the > R graphics window, pixelate it, and express that pixellation in a > numeric matrix. For example, I am using the following command to create > a black (present) and white (absent) spatial simulation of grass > tussock distribution. > > > > symbols(x=runif(100,-.5,1.5),y=runif(100,-.5,1.5),circles=runif(100)/30, > inches=F,bg=1,xlim=c(0,1),ylim=c(0,1)) > > What I would like to end up with is a 2 dimensional matrix that > indicates presence/absence of grass in any given pixel as per the image > generated from the above graphics plot. > > Thanks > > Terry Beutel > > > > > ********************************DISCLAIMER**************...{{dropped:15}} > > ______________________________________________ > 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. > -- Michael Sumner Institute for Marine and Antarctic Studies, University of Tasmania Hobart, Australia e-mail: mdsum...@gmail.com [[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.
