QGIS Algorithm provided by GRASS r.horizon.height (grass:r.horizon.height). r.horizon.height - Horizon angle computation from a digital elevation model.
grass_r_horizon_height(
elevation = qgisprocess:::qgis_default_value(),
coordinates = qgisprocess:::qgis_default_value(),
direction = qgisprocess:::qgis_default_value(),
step = qgisprocess:::qgis_default_value(),
start = qgisprocess:::qgis_default_value(),
end = qgisprocess:::qgis_default_value(),
bufferzone = qgisprocess:::qgis_default_value(),
e_buff = qgisprocess:::qgis_default_value(),
w_buff = qgisprocess:::qgis_default_value(),
n_buff = qgisprocess:::qgis_default_value(),
s_buff = qgisprocess:::qgis_default_value(),
maxdistance = qgisprocess:::qgis_default_value(),
distance = qgisprocess:::qgis_default_value(),
.d = qgisprocess:::qgis_default_value(),
.c = qgisprocess:::qgis_default_value(),
html = qgisprocess:::qgis_default_value(),
GRASS_REGION_PARAMETER = qgisprocess:::qgis_default_value(),
GRASS_REGION_CELLSIZE_PARAMETER = qgisprocess:::qgis_default_value(),
...,
.complete_output = .complete_output_option(),
.quiet = .quiet_option(),
.messages = .message_option()
)raster - Name of input elevation raster map. Path to a raster layer.
point - Coordinate for which you want to calculate the horizon. Point coordinate as an 'x,y' string, e.g. '1.5,10.1'.
number - Direction in which you want to know the horizon height. A numeric value. field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field. expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression.
number - Angle step size for multidirectional horizon. A numeric value. field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field. expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression.
number - Start angle for multidirectional horizon. A numeric value. field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field. expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression.
number - End angle for multidirectional horizon. A numeric value. field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field. expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression.
number - For horizon rasters, read from the DEM an extra buffer around the present region. A numeric value. field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field. expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression.
number - For horizon rasters, read from the DEM an extra buffer eastward the present region. A numeric value. field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field. expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression.
number - For horizon rasters, read from the DEM an extra buffer westward the present region. A numeric value. field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field. expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression.
number - For horizon rasters, read from the DEM an extra buffer northward the present region. A numeric value. field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field. expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression.
number - For horizon rasters, read from the DEM an extra buffer southward the present region. A numeric value. field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field. expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression.
number - The maximum distance to consider when finding the horizon height. A numeric value. field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field. expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression.
number - Sampling distance step coefficient. A numeric value. field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field. expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression.
boolean - Write output in degrees (default is radians). 1 for true/yes. 0 for false/no. field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field. expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression. Original algorithm parameter name: -d.
boolean - Write output in compass orientation (default is CCW, East=0). 1 for true/yes. 0 for false/no. field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field. expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression. Original algorithm parameter name: -c.
fileDestination - Horizon. Path for new file.
extent - GRASS GIS 7 region extent. A comma delimited string of x min, x max, y min, y max. E.g. '4,10,101,105'. Path to a layer. The extent of the layer is used..
number - GRASS GIS 7 region cellsize (leave 0 for default). A numeric value. field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field. expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression.
further parameters passed to qgisprocess::qgis_run_algorithm()
logical specifying if complete out of qgisprocess::qgis_run_algorithm() should be used (TRUE) or first output (most likely the main) should read (FALSE). Default value is TRUE.
logical specifying if parameter .quiet for qgisprocess::qgis_run_algorithm() Default value is TRUE.
logical specifying if messages from qgisprocess::qgis_run_algorithm() should be printed (TRUE) or not (FALSE). Default value is FALSE.