r.horizon Horizon angle computation from a digital elevation model. Raster (r.*) ParameterRaster|elevation|Name of input elevation raster map|False ParameterNumber|direction|Direction in which you want to know the horizon height|0|360|0.0 ParameterNumber|maxdistance|The maximum distance to consider when finding the horizon height|0|None|10000 ParameterString|distance|Sampling distance step coefficient (0.5-1.5)|1.0 ParameterBoolean|-d|Write output in degrees (default is radians)|False OutputRaster|output|Horizon