Deformation map

The topography of a built surface

Deformation maps are a visual representation of the elevation of the floor at any point. 



Not only are these useful for uneven floors, but also exterior walls to show any deflections, as shown below.



Reading the same as land topography maps, they can show you the high and low points throughout a building's floors, how much concrete will be required to level, and even the impact of the weight on your structural system.