daanstrebe

62 ms·

1. 1.▲
   by daanstrebe 11y ago

   « laugh » No kidding…
2. 2.▲
   by daanstrebe 11y ago

   Couple of points. * It’s not trigonometry. The inverse of a proper ellipsoidal Mercator has no closed-form solution. * Data generally are in geographic coordinates, not map coordinates. If your data are in map coordinates, then definitely
3. 3.▲
   by daanstrebe 11y ago

   It depends on the extent of the map. For local areas, what you suggest is just fine. At the scale of a continent, it’s problematic, and gets more and more problematic as you zoom out.
4. 4.▲
   by daanstrebe 11y ago

   "Well, personally, I've never been exposed to other projections until 28 years…" That is vanishingly unlikely. These are projections you have practically certainly seen: https://www.mapthematics.com/Projection