Am 10.09.11 14:47, schrieb Christian Schmitt: > Curtis Olson wrote: > >> I won't say this is perfect in all areas ... some areas have stray data >> points or noise in the terrain data that confuses things. There's always >> a chance of a mismatch between airport location terrain location so that >> we >> are trying to put the airport on not quite the right underlying terrain. >> My thoughts for future extensions of this code would be to allow for >> creating specific tuning parameters for airports that didn't behave well >> with the default parameters. > > An nice example where a high slope leads to bad results would be LFLJ, > however, it is possible in such cases to use the --max-slope option in > genapts. > > Chris >
After an import of apt.dat for a taxiway area of 10 x 10 degrees I get about 60'000 of areas (or "holes") smaller than 1x1 meter. Ok, you can say this is "reality" by accident, because no artificial surface can be calculated perfectly, and this faults makes it more sexy then everything else. But ... unfortunately, you wont see it at all. Now, cleaning the 2d polygons by grass with common tools like rmarea reduce the imported data about 50 percent. Just for illustration, here is an examples of a (probably) visually edited taxiway with taxidraw: http://maptest.fgx.ch/screens/taxidraw.png I am sure that this very small hole you see here will produce a lot of lag. My personal conclusion here is I really do not fear when we get more points soon emulating curves. When this small areas and holes disappear, we will probably get a lot of resources back. Personally I think we should stop people using taxidraw for taxiway editing, at least for patching lines together to get polygons. Cheers, Yves ------------------------------------------------------------------------------ Malware Security Report: Protecting Your Business, Customers, and the Bottom Line. Protect your business and customers by understanding the threat from malware and how it can impact your online business. http://www.accelacomm.com/jaw/sfnl/114/51427462/ _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
