Hi, > I'm forwarding our correspondence with Vaclav, maybe someone could have any > thoughts. In the situation presented on the screenshots, there was three > bearings building a triang. Then adding the fourth bearing (the point on the > nord) doesn't change the polygon geometry, but moves the location as it's > computed as a center of gravity. For me it's the best solution, but maybe > anyone have better ideas?
the math (for three or more bearings) can be pretty complicated, see for example the paragraph "3 or more receiving stations" in White and Garrot "Analysis of Wildlife Radio-Tracking Data". So I guess that in this early stage of development of the plugin the centre of gravity is acceptable. > I'm not sure if this is relevant. I thought other > software packages what other sw packages (open source or not) do offer triangulation tools? > 2) arithmetic > mean of x and y; 3) drop the farthest point and > recalculate the remaining ; 4) drop the point > that changes the area greatly and recalculate; 5) > use the median of x and y as the location; and other methods they all seem cool features to be added sometimes during the next stages of development. I believe that Borys is already keeping a sort of "to do" list :) cheers -- Giovanni -- _______________________________________________ AniMov mailing list [email protected] http://lists.faunalia.it/cgi-bin/mailman/listinfo/animov
