ST_Roughness

Name

ST_Roughness — Returns a raster with the calculated "roughness" of a DEM.

Synopsis

raster ST_Roughness ( raster rast , integer nband , raster customextent , text pixeltype="32BF" , boolean interpolate_nodata=FALSE ) ;

Description

Calculates the "roughness" of a DEM, by subtracting the maximum from the minimum for a given area.

Availability: 2.1.0

Examples

-- needs examples