R/grass_r_sunmask_position.R
grass_r_sunmask_position.Rd
QGIS Algorithm provided by GRASS r.sunmask.position (grass:r.sunmask.position). r.sunmask.position - Calculates cast shadow areas from sun position and elevation raster map.
grass_r_sunmask_position(
elevation = qgisprocess:::qgis_default_value(),
altitude = qgisprocess:::qgis_default_value(),
azimuth = qgisprocess:::qgis_default_value(),
east = qgisprocess:::qgis_default_value(),
north = qgisprocess:::qgis_default_value(),
.z = qgisprocess:::qgis_default_value(),
.s = qgisprocess:::qgis_default_value(),
output = qgisprocess:::qgis_default_value(),
GRASS_REGION_PARAMETER = qgisprocess:::qgis_default_value(),
GRASS_REGION_CELLSIZE_PARAMETER = qgisprocess:::qgis_default_value(),
GRASS_RASTER_FORMAT_OPT = qgisprocess:::qgis_default_value(),
GRASS_RASTER_FORMAT_META = qgisprocess:::qgis_default_value(),
...,
.complete_output = .complete_output_option(),
.quiet = .quiet_option(),
.messages = .message_option()
)
raster
- Elevation raster layer (meters). Path to a raster layer.
number
- Altitude of the sun in degrees above the 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
- Azimuth of the sun in degrees from north. 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.
string
- Easting coordinate (point of interest). String 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.
string
- Northing coordinate (point of interest). String 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
- Do not ignore zero elevation. 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: -z.
boolean
- Calculate sun position only and exit. 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: -s.
rasterDestination
- Shadows. Path for new raster layer.
extent
- GRASS GIS 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 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.
string
- Output Rasters format options (createopt). String 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.
string
- Output Rasters format metadata options (metaopt). String 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
.