search for: getpixmapgd

Hi all, I just downloaded windows binaries of RGDAL (from http://www.stats.ox.ac.uk/pub/RWin/bin/windows/contrib/2.1/) and installed. I ran the example R_HOME\library\rgdal\R-ex\getPixmapGDAL.R and everything seemed to work as expected. However I got the following warning message: DLL attempted to change FPU control word from 8001f to 9001f The R-help (?dyn.load) describes the problem as: ************************************ External code must not change the floating point contr...

...AL and placing in a pixmap object. As an example use the logo.jpg file that comes with the RGDAL package: #Read the file logo <- system.file("pictures/logo.jpg", package="rgdal")[1] x <- new("GDALReadOnlyDataset", logo) #Create the pixmap object xGrey <- getPixmapGDAL(x) Now I would like to read individual pixel values and store them in a separate vector. However I have not found a straight-forward way to do this. I thought that something like: x <- xGrey[1,1] would return the pixel value, but it seems to return a pixmap object with dimension 1x1 (i...