QGIS Algorithm provided by SAGA Next Gen Upslope area (sagang:upslopearea). ---------------- Arguments ---------------- TARGET: Target Area (optional) Argument type: raster Acceptable values: - Path to a raster layer TARGET_PT_X: Target X coordinate Default value: 0 Argument type: number Acceptable values: - 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 TARGET_PT_Y: Target Y coordinate Default value: 0 Argument type: number Acceptable values: - 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 ELEVATION: Elevation Argument type: raster Acceptable values: - Path to a raster layer SINKROUTE: Sink Routes (optional) Argument type: raster Acceptable values: - Path to a raster layer AREA: Upslope Area Argument type: rasterDestination Acceptable values: - Path for new raster layer METHOD: Method Default value: 2 Argument type: enum Available values: - 0: (0) Deterministic 8 - 1: (1) Deterministic Infinity - 2: (2) Multiple Flow Direction - 3: (3) Multiple Triangular Flow Directon - 4: (4) Multiple Maximum Downslope Gradient Based Flow Directon Acceptable values: - Number of selected option, e.g. '1' - Comma separated list of options, e.g. '1,3' CONVERGE: Convergence Default value: 1.1 Argument type: number Acceptable values: - 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

sagang_upslopearea(
  TARGET = qgisprocess:::qgis_default_value(),
  TARGET_PT_X = qgisprocess:::qgis_default_value(),
  TARGET_PT_Y = qgisprocess:::qgis_default_value(),
  ELEVATION = qgisprocess:::qgis_default_value(),
  SINKROUTE = qgisprocess:::qgis_default_value(),
  AREA = qgisprocess:::qgis_default_value(),
  METHOD = qgisprocess:::qgis_default_value(),
  CONVERGE = qgisprocess:::qgis_default_value(),
  ...,
  .complete_output = .complete_output_option(),
  .quiet = .quiet_option(),
  .messages = .message_option()
)

Arguments

TARGET

raster - Target Area. Path to a raster layer.

TARGET_PT_X

number - Target X coordinate. 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.

TARGET_PT_Y

number - Target Y coordinate. 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.

ELEVATION

raster - Elevation. Path to a raster layer.

SINKROUTE

raster - Sink Routes. Path to a raster layer.

AREA

rasterDestination - Upslope Area. Path for new raster layer.

METHOD

enum of ("(0) Deterministic 8", "(1) Deterministic Infinity", "(2) Multiple Flow Direction", "(3) Multiple Triangular Flow Directon", "(4) Multiple Maximum Downslope Gradient Based Flow Directon") - Method. Number of selected option, e.g. '1'. Comma separated list of options, e.g. '1,3'.

CONVERGE

number - Convergence. 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()

.complete_output

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.

.quiet

logical specifying if parameter .quiet for qgisprocess::qgis_run_algorithm() Default value is TRUE.

.messages

logical specifying if messages from qgisprocess::qgis_run_algorithm() should be printed (TRUE) or not (FALSE). Default value is FALSE.

Details

Outputs description

  • AREA - outputRaster - Upslope Area