What is Mapoverlay?

[sinelogixtech]

What is Mapoverlay?

[RH-Calvin]

An overlay is a procedure that estimates the attributes of one or more features by superimposing them over other features, and figuring out the extent to which they overlap. You use overlays to estimate the attributes of features in a map layer based on data in another map layer.

[Servers Base]

Storing digital data in multiple "layers" is not unique to GIS, of course; computer-aided design (CAD) packages and even spreadsheets also support layering.
An overlay is a procedure that estimates the attributes of one or more features by superimposing them over other features, and figuring out the extent to which they overlap.
You can use overlays to estimate the attributes of features in a map layer based on data in another map layer.

[shoppingswag]

The Map Overlay and Statistical System, is a GIS software technology. Development of MOSS began in late 1977 and was first deployed for use in 1979. MOSS represents a very early public domain, open source GIS development - predating the better known GRASS by 5 years.