Planimetric- Marauders Map

http://www.newlaunches.com/archives/10_gadgets_we_wish_were_real_instead_of_reel.php

Marauders map is an example of a Planimetric Map.  This map shows only horizontal variations, unlike a topographic map that shows vertical variations as well as horizontal.  Map features in this type of map can show streets, highways, sidewalks, buildings, lakes, rivers; the list goes on and on.  In Harry Potter's world it  showed the various sections of Hogwarts, as well as dots that moved with the movement of certain individuals that Harry was attempting to track!