Proportional World Map
As you think of Proportional World Map, exactly what you thinking of? In essence a map is a representation of a topology or function. Pertaining to example a formula such as X=2Y maps a worth of Y to each value of A. Of course everybody knows that mathematicians are weird and sometimes hard to understand but they have you ever seen a schematic map of a subway (underground railway) system? Have you ever ever seen the same network of rails specified on a more "normal" Proportional World Map of metropolis in which it is located? Different Proportional World Map of the extremely same thing can look quite different.
As you make a Proportional World Map of the flat area - a "plan" or "elevation" - things are quite simple, but when you make an effort to map a larger area, like the surface of an whole planet, things can get quite complicated if you need your map to be toned. It really is all very well to make an earth, but try turning the of that globe into a set Proportional World Map! Yikes!
However you start it, you finish program edge-effects. As I write this post I am actually included in programming map-generating programs designed to generate maps of fictional landscapes. I happen to be examining the map-generators that are included in the free, open-source (GNU GPL licensed) strategy game, FreeCiv. Edge results are extremely apparent in such maps. The Proportional World Map are basically rectangular, but you can choose to acquire them act like cylinders by "wrapping" left to right or top to lower part, or you may also have "wrap" in both guidelines. Most often people make a decision on "wrap" only still left to right, and prevent the best and bottom with "polar regions". Such basic "wrapping" makes for quite extreme distortion though if you test it with a real Proportional World Map worldwide!