search for: gdaldrivers

I started to use the rgdal package in order to work with DEM files. Since these files are based on non-rectangular quads, there are lots of NA-values in the corresponding datasets. Does anybody know how to remove the NA-values from an object of class GDALDataset in order to get a rectangular dataset? Also, the function saveDataset doesn't seem to work for these kind of data (or at least for

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Dear list Has anyone got a recipie at hand to import .bil files into R? From what I understand the .bil files I got contain layered matricies which I would lke to make available in R as an array or list. GIS people seem to be familiar with the .bil format but I am not using any GIS software and would prefer to deal with the data in R. I use the latest version of R on Mac OSX 10.5.8.

R-geographers... I'm trying to solve a problem to implement a line-by-line tiled processing using RGDAL (read 1 line of an image, process the one line, write one line of the image to a binary file). Everything except for the final step I'm able to do using a combination of RGDAL and r-base commands. Below is the basic structure, the input file "elev" can be any image file