An overview of the Overlay tools

Overlay analysis tools allow you to apply weights to several inputs and combine them into a single output. The most common application for Overlay tools is suitability modeling.

Learn about overlay analysis

Learn about overlay analysis applications

The following table lists the tools that perform overlay analysis, provides a brief description of each, and identifies if the tool works in ArcToolbox, Map Algebra, or ArcObjects.


Tool Description ArcToolbox Map Algebra ArcObjects
Weighted Overlay Overlays several rasters using a common scale and weights each according to its importance. X

Weighted Sum Overlays several rasters by multiplying each by their given weight and summing them together. X