On Jan 6, 11:45 am, "warden [Andrew Leach - Maps API Guru]"
<[email protected]> wrote:
> On Jan 6, 7:09 pm, marcelo <[email protected]> wrote:
>
>
> There *are* three great circles there, I think: part of the Prime
> Meridian (0,0 to 87,0), part of the Equator (0,0 to 0,180), and part
> of an oblique great circle connecting 87,0 to 0,180.
> Usinghttp://maps.forum.nu/gm_flight_path.htmland points 85,0 to 0,180
> which lie on the map, the line goes around the Pole, on the opposite
> side of the earth from the US [ie across Asia]. It doesn't follow the
> Meridian. That does describe a spherical triangle.
I see the confusion. The spherical triangle defined by three points
has to be the smallest (area wise) such - so going around the equator
is wrong.
If you dont like that argument, change the third point to (45, 180) -
or, to keep marcello happy, (45, 179.999999). Now its obvious that the
line goes over the pole. .
Mark
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