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You can represent size or shape correctly, not both. Anyone who uses the Gall-Peters projection is a cop.
by astrodust 8y ago
You can represent size or shape correctly, not both.
Anyone who uses the Gall-Peters projection is a cop.
- rm_-rf_slash 8y agoObligatory XKCD https://www.xkcd.com/977/ https://www.xkcd.com/977/
- hackme1234 8y agoYour username is obsolete in Ubuntu. It simply gives an error message.
- Ajedi32 8y agoGoogle decided to go with "A Globe".
- deathanatos 8y agoAt low zoom levels. Given the behavior of the poles (they're not viewable; the south is also a black hole…), I suspect that there's a very smoothly done transition to web mercator for the higher zoom levels.
- gefh 8y agoCorrect. At high zooms, the trig required in the spherical math becomes inaccurate, so we fade back to simple web mercator.
- astrodust 8y agoCartography wouldn't be able to use all these cheap tricks if the poles were habitable territory. Can you imagine the distortion on a map of a small town located at the pole if Mercator was used?
- sp332 8y agoYou can get pretty close though. Like a Dymaxion map (shown in sibling's XKCD link) or one of those orange-peel maps if you have enough little slices. Edit: better Dymaxion link https://en.wikipedia.org/wiki/Dymaxion_map https://en.wikipedia.org/wiki/Dymaxion_map It's made of triangles that you can rearrange, which isn't really shown in the xkcd.
- LeoPanthera 8y ago> You can represent size or shape correctly, not both. You can if you don't mind having a non-rectangular map border. https://en.wikipedia.org/wiki/Dymaxion_map https://en.wikipedia.org/wiki/Dymaxion_map
- polishTar 8y agoDymaxion maps are still deformed, just not as much as most other projections.