Am 09.09.11 19:33, schrieb Curtis Olson: > In addition, there is a fairly sophisticated (and I think cool) step where > we fit a natural curved surface across the airport elevation and used the > curved surface instead of raw SRTM points. This eliminates the "noise" in > the raw data and gives the airport surface a natural looking slope and > correct hills and valleys (in most cases.)
Hi Curt Thank you very much taking time for this. Now this is very interesting, a curved surface with a natural looking slope and correct hills. Can you point me to an example for this ? I guess my current examples like KSFO and EHAM etc. do only provide really flat areas. I did not see any small hills and valleys in FlightGear unless I saw the some "artificial shaders" from Frederic Bouvier Hm, indeed, for the moment I was only looking to the two dimensional triangles and saw that genapts (or terragear) is calculating some small areas and probably "unnecessary" triangles like here at KSFO http://maptest.fgx.ch/screens/wired.png There are also a lot of duplicate items, or it looks like in the wire-frame view, but maybe this items are just very close to each other ... Anyway, how do you get the "natural" curved surface without height data ? How are you interpolating between points ? I will try to understand this. Of course, I should not be that lazy and should have a look to the genapts or terragear code instead, right ;-) Generally I see that I miss some points here with airport generation and it is very different from generating shapes for a map. Cheers, Yves ------------------------------------------------------------------------------ Why Cloud-Based Security and Archiving Make Sense Osterman Research conducted this study that outlines how and why cloud computing security and archiving is rapidly being adopted across the IT space for its ease of implementation, lower cost, and increased reliability. Learn more. http://www.accelacomm.com/jaw/sfnl/114/51425301/ _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
