Thanks,
On Mar 27, 3:49 am, String <sterling.ud...@googlemail.com> wrote:
> Mike,
>
> Because the map wraps around at the antimeridian (where abs(lon) ==
> 180), polylines (or any data) that span that line behave in ways that
> can be nonintuitive. Basically, there are different possibilities for
> how to wrap such displays, and the one that the Maps API picks often
> doesn't match the one you'd like.
>
> The solution for a polyline is typically to break it into 2 at the
> point where it crosses the antimeridian. Calculate the latitude of
> that crossing point (the math is straightforward), then create two
> polylines, one which goes from your positive-longitude endpoint to
> 179.99999, and the other which goes from -179.99999 to your negative-
> longitude endpoint. You may get some slight visual hiccup right at the
> line, but it's usually minor, and pretty well unavoidable.
>
> The behavior you're seeing with geodesic polylines is because the
> great-circle effect is created by the API breaking the polyline into
> segments itself, and only the antimeridian-crossing segment is
> affected.
>
> HTH,
>
> String
>
> On Mar 27, 1:30 am, Mike <topgun...@hotmail.com> wrote:
>
> > I've been having problems with long polylines across the globe, for
> > example line between these two points:
> > new GLatLng(34.690083, 135.1955112),
> > new GLatLng(32.082325, -81.096515)
>
> > with map.setCenter(new GLatLng(33.386204, -152.9505019), 2);
>
> > when {geodesic:true}: i get a funny arc that turns around sharply at
> > international date line.
> > when {geodesic:false}: i get a straight line that always goes the
> > other way around the globe (unpredictable)
>
> > Also when i use great circle type, after attempting to zoom in/out,
> > the browser freezes. It happens both on IE7 and FF.
>
> > Can anyone help?
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