Dictionary wise, you're correct. I had a total of 8 points with bearings, but no distance vectors, so I was actually trying to solve an inverted resection (intersection) problem. http://en.wikipedia.org/wiki/Resection_(orientation)
Either way, I ended up using FizzyCalc <http://www.fizzymagic.net/Geocaching/FizzyCalc/>to project the first 5 point/bearings by 20 miles and then plotted the intersect points in JOSM. If someone does feel like coding up an intersection/resection surveying plugin for JOSM, it looks like many of the calculations involve Vicenty's Formula <http://en.wikipedia.org/wiki/Vincenty%27s_formulae>. On Mon, Oct 12, 2009 at 6:51 PM, David ``Smith'' <[email protected]>wrote: > On Mon, Oct 12, 2009 at 3:18 PM, Chris Hunter <[email protected]> > wrote: > > Is there a relatively quick way to interpolate a point in JOSM given 2 > other > > points and a magnetic bearing? > > I think you mean, "triangulate" a point. Other than that > clarification, I can't help. I have very little experience with JOSM > but I don't believe such a function exists. On the other hand, if > someone wants to write a simple JOSM plugin to do this task, I can > come up with some pseudocode to accomplish the necessary calculations. > > -- > David "Smith" > a.k.a. Vid the Kid > a.k.a. Bír'd'in > > Does this font make me look fat? > > _______________________________________________ > newbies mailing list > [email protected] > http://lists.openstreetmap.org/listinfo/newbies >
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