Mapthematics Forums

I’d call it obsolete after my homotopy , letting you blend any two projections. I've read about that one. It's pretty clever, but I do find it a little inelegant due to its lack of symmetry, which prevents a 50% blend of two You know what? I used to agree, but I have wasted far too much time on the...

Provided we do talk about the map I linked to above, it shows – increased spacing of straight parallels towards the poles, – probably equally spaced meridians along the equator (the distance doesn’t seem exactly the same everywhere, but this might be due to the poor accuracy of the drawing), – non-...

Nice find. I did not compare in depth, but this is surely the 等差分纬线多圆锥投影 ( Latitudinally equal-differential polyconic projection ). I’m a bit confused now… No, I’m a bit confused. When I wrote “I did not compare in depth”, I think I meant, “I did not compare even in shallow”, even though I have som...

Nice find. I did not compare in depth, but this is surely the 等差分纬线多圆锥投影 (Latitudinally equal-differential polyconic projection).

— daan

I was hoping someone would notice the irony!

— daan

You are welcome to include links.

I should make a list of things that do not have pseudoscientific claims attached to them. It might be short.

— daan

I assume that it's "pseudo" in the sense that if the underlying data is from an ellipsoid rather than a sphere, it's not truly conformal, only approximately so. This can be a problem if you were actually counting on the Mercator's property of being conformal. I’ve heard this argument befo...

At least I read about him creating another perspective cylindrical that was called the Pseudo-Mercator(the same name applied to Web-Mercator). Slight rant: I don’t know why people refer to it as “pseudoMercator”. There is nothing “pseudo” about it. It’s just the spherical Mercator with a particular...

Most sources give 1998 as the year the National Geographic switched again, from the Robinson projection to the Winkel Tripel. But I came across a page on the National Geographic site which stated that this change happened in their April, 1995 issue. This surprised me. Why the discrepancy? It turned...