r.horizon
r.horizon - Horizon angle computation from a digital elevation model.
Raster (r.*)
ParameterRaster|elevin|Name of the input elevation raster map [meters]|False
ParameterNumber|direction|Direction in which you want to know the horizon height|None|None|0.0
ParameterNumber|horizonstep|Angle step size for multidirectional horizon [degrees]|None|None|0.0
ParameterNumber|bufferzone|For horizon rasters, read from the DEM an extra buffer around the present region|None|None|0.0
ParameterNumber|e_buff|For horizon rasters, read from the DEM an extra buffer eastward the present region|None|None|0.0
ParameterNumber|w_buff|For horizon rasters, read from the DEM an extra buffer westward the present region|None|None|0.0
ParameterNumber|n_buff|For horizon rasters, read from the DEM an extra buffer northward the present region|None|None|0.0
ParameterNumber|s_buff|For horizon rasters, read from the DEM an extra buffer southward the present region|None|None|0.0
ParameterNumber|maxdistance|The maximum distance to consider when finding the horizon height|None|None|0.0
ParameterRaster|horizon|Prefix of the horizon raster output maps|False
ParameterString|coord|Coordinate for which you want to calculate the horizon|0,0
ParameterString|dist|Sampling distance step coefficient (0.5-1.5)|1.0
ParameterBoolean|-d|Write output in degrees (default is radians)|False