Multivisibility on terrains
Given a terrain modeled by a TIN and a set of objects placed on or above the terrain, we are interested on determining which points of the terrain are visible from: at least one object, all the objects, a given number of objects, …

Terrain

Points with the same color are visible
from the same number of objects (in violet).
from the same number of objects (in violet).

Red points are visible from at least one
object (in violet).
object (in violet).
Multivisibility studies are used to optimally design mobile phone networks, place watcher towers on terrains, ...

