[Proj] Re: Newbie Polar stereographic question
john star
starjohn at hotmail.com
Thu Jul 13 02:12:52 EDT 2006
Hi Gerald!
Thanks, I understand now that in libproj, the plane MUST be orthogonal
to the earth, and there is no support for this plane to be "inside" the
earth..
Is there a way to use the library for this case ? by playing with parameters
(btw,
what are the rest of parameters like lat_ts and k?), or it is just not
supported ?
Best Regards
John
>Basically. The source point of all the rays is the "antipod" of the point
>of tangency of the projection plane. That is at a point -lat_0,-lon_0.
I should say lon_0+180
>Thus the ray from the ray source to lat_0, lon_0 passes through the center
>of the earth. And the plane of the projection is orthogonal to this ray.
>
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