News for hackers. Stuff that matters.

A comment on Mollweide map projection and Newton's method.

Re:Mollweide map projection and Newton's method by 01HNNWZ0MV43FF on Thursday September 25, 2025 @05:46AM (#45370938)
> If you were looking at the earth from a distance, the face you’re looking at would correspond to a circle in the middle of the Mollweide map.

That doesn't look like the image. If you're looking at Earth from a distance, there will be foreshortening that squishes the meridians together. But the meridians look almost evenly spaced except for the far left and right edges of the ellipse.

[ Parent | on HN ]
Re:Mollweide map projection and Newton's method by tobr on Thursday September 25, 2025 @06:28AM (#45371239)
It sounded very weird to me too. Perspective projection isn’t equal area. But I think he’s probably not trying to say that the projection would be identical, just that a circle in the center corresponds to one half of the globe.
[ Parent | on HN ]
Re:Mollweide map projection and Newton's method by johndcook on Thursday September 25, 2025 @08:48AM (#45372114)
Yes. Thanks.
[ Parent | on HN ]