A large volume of spatial data exists in raster form,
such as scanned thematic maps, and remotely sensed images.
Classified images, and thematic maps are analyzed using
the raster analysis module. With the help of this module
basic arithmetic functions (like addition, subtraction,etc),
regrouping (class and range) of raster files and various
other operations can be carried out.
This module performs following functions:
Map algebra to
combine multiple maps using arithmetic, logical, and
relational operators, nested if-then conditions etc.
Conditional and
unconditional overlay of maps.
Buffer generation
and distance calculation.
Zonal, focal,
neighborhood operations and Watershed delineation.