On Sat, Jul 17, 2010 at 13:11, Friedrich Romstedt <friedrichromst...@gmail.com> wrote: > 2010/7/14 Ionut Sandric <sandricio...@yahoo.com>: >> By raster data I mean classified slope gradient (derived from a dem), >> landuse-landcover, lithology etc. A crosstabulation analysis will give me a >> table with the common areas for each class from each raster and this will go >> into other analysis. I can do it with other softwares (like ArcGIS DEsktop >> etc), but I would like to have all with numpy or to build something on top >> of numpy > > I'm afraid also Zach does not understand what you are talking about > ... So my first question (please bear with me) would be: What's a dem?
Digital Elevation Map. > (n/a in my dictionary) And sorry for the cross-talk on the other > first post by you ... > > And by slope gradient you mean second derivative? No, the first derivative. "Slope gradient" is a reasonably common, albeit somewhat redundant, idiom meaning the gradient of an elevation map. -- Robert Kern "I have come to believe that the whole world is an enigma, a harmless enigma that is made terrible by our own mad attempt to interpret it as though it had an underlying truth." -- Umberto Eco _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
