On Sat, May 29, 2010 at 8:52 PM, Jacob van Etten <jacobvanet...@yahoo.com>wrote:
> Hi Barry, > > What do you mean with a broken OO model? > > It's one of the red flags of Object-oriented programming. You shouldn't test for the class of an object and then do something based on that - you should write methods for those classes so the code gets executed magically by the OO mechanism. So there should be a generic 'projection', and methods projection.BasicRaster and projection.Spatial (in S3 terms). Barry [[alternative HTML version deleted]] _______________________________________________ R-sig-Geo mailing list R-sig-Geo@stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/r-sig-geo