An overview of Spatial Analyst classes (arcpy.sa)

Spatial Analyst classes are primarily used for defining parameters for Spatial Analyst tools that may have varying numbers of arguments depending on the parameter type selected (for example, the neighborhood type) or when the number of entries in the parameters can vary depending on the specific situation (for example, a reclass table). By using classes for parameters, you can access and programmatically change any of the individual entries in the parameter.

The following table presents the general functional groups for the Spatial Analyst classes. The classes that define the various options for a parameter are grouped together.

Fuzzy Membership	Defines the membership function for fuzzy logic analysis.
Horizontal Factor	Identifies the horizontal factor for the Path Distance tools.
Kriging Models	Develops the model for creating surfaces with kriging.
Neighborhood	Defines the input neighborhood for a series of tools.
Overlay	Creates the input tables for the Weighted Overlay and Weighted Sum tools.
Radius	Identifies a radius for the IDW and Kriging tools.
Remap	Defines various remap tables used in reclassification.
Time	Identifies the time interval to use in the solar radiation tools.
Topo Input	Defines the input to the Topo to Raster tool.
Transformation Functions	Defines the transformation functions for the Rescale by Function tool.
Vertical Factor	Identifies the vertical factor for the Path Distance tools.