<?xml version="1.0" encoding="CP1252"?>
<!DOCTYPE task SYSTEM "grass-interface.dtd">
<task name="r.horizon">
	<label>
		Horizon angle computation from a digital elevation model.
	</label>
	<description>
		Computes horizon angle height from a digital elevation model. The module has two different modes of operation:  1. Computes the entire horizon around a single point whose coordinates are given with the 'coord' option. The horizon height (in radians). 2. Computes one or more raster maps of the horizon height in a single direction.  The input for this is the angle (in degrees), which is measured  counterclockwise with east=0, north=90 etc. The output is the horizon height in radians.
	</description>
	<keywords>
		ráster
	</keywords>
	<parameter name="elevin" type="string" required="yes" multiple="no">
		<description>
			Nombre del mapa ráster de elevación de entrada [metros]
		</description>
		<gisprompt age="old" element="cell" prompt="raster" />
		<guisection>
			Opciones de entrada
		</guisection>
	</parameter>
	<parameter name="direction" type="float" required="no" multiple="no">
		<description>
			Direction in which you want to know the horizon height
		</description>
		<guisection>
			Opciones de entrada
		</guisection>
	</parameter>
	<parameter name="horizonstep" type="float" required="no" multiple="no">
		<description>
			Angle step size for multidirectional horizon [degrees]
		</description>
		<guisection>
			Opciones de entrada
		</guisection>
	</parameter>
	<parameter name="bufferzone" type="float" required="no" multiple="no">
		<description>
			For horizon rasters, read from the DEM an extra buffer around the present region
		</description>
		<guisection>
			Opciones de entrada
		</guisection>
	</parameter>
	<parameter name="e_buff" type="float" required="no" multiple="no">
		<description>
			For horizon rasters, read from the DEM an extra buffer eastward the present region
		</description>
		<guisection>
			Opciones de entrada
		</guisection>
	</parameter>
	<parameter name="w_buff" type="float" required="no" multiple="no">
		<description>
			For horizon rasters, read from the DEM an extra buffer westward the present region
		</description>
		<guisection>
			Opciones de entrada
		</guisection>
	</parameter>
	<parameter name="n_buff" type="float" required="no" multiple="no">
		<description>
			For horizon rasters, read from the DEM an extra buffer northward the present region
		</description>
		<guisection>
			Opciones de entrada
		</guisection>
	</parameter>
	<parameter name="s_buff" type="float" required="no" multiple="no">
		<description>
			For horizon rasters, read from the DEM an extra buffer southward the present region
		</description>
		<guisection>
			Opciones de entrada
		</guisection>
	</parameter>
	<parameter name="maxdistance" type="float" required="no" multiple="no">
		<description>
			The maximum distance to consider when finding the horizon height
		</description>
		<guisection>
			Opciones de entrada
		</guisection>
	</parameter>
	<parameter name="horizon" type="string" required="no" multiple="no">
		<description>
			Prefix of the horizon raster output maps
		</description>
		<gisprompt age="old" element="cell" prompt="raster" />
		<guisection>
			Opciones de salida
		</guisection>
	</parameter>
	<parameter name="coord" type="float" required="no" multiple="no">
		<description>
			Coordinate for which you want to calculate the horizon
		</description>
		<keydesc>
			<item order="1">east</item>
			<item order="2">north</item>
		</keydesc>
		<guisection>
			Opciones de salida
		</guisection>
	</parameter>
	<parameter name="dist" type="float" required="no" multiple="no">
		<description>
			Sampling distance step coefficient (0.5-1.5)
		</description>
		<default>
			1.0
		</default>
		<guisection>
			Opciones de salida
		</guisection>
	</parameter>
	<flag name="d">
		<description>
			Write output in degrees (default is radians)
		</description>
	</flag>
	<flag name="verbose">
		<description>
			Salida detallada del módulo.
		</description>
	</flag>
	<flag name="quiet">
		<description>
			Salida del módulo "silenciosa".
		</description>
	</flag>
</task>
