GPS coordinates in the format of WGS84 are quite common. I need to transform them into Gauss-Krüger coordinates but I have no idea how to do that. The only things I know are that it is not easy and I have to use the Helmert-transformation.
I usually work with r-project and would therefore prefer to work with a r-package to solve my problem. Is there a package which could handle that?
Is it actually necessary to transform the "GPS coordinates" in order to create a hillshade map with different "landmarks" according to the coordinates? Is there any open source software to create a map and then mark the positions based on the coordinates?