QGIS Algorithm provided by SAGA Next Gen Vertical distance to channel network (sagang:verticaldistancetochannelnetwork). —————- Arguments —————- ELEVATION: Elevation Argument type: raster Acceptable values: - Path to a raster layer CHANNELS: Channel Network Argument type: raster Acceptable values: - Path to a raster layer DISTANCE: Vertical Distance to Channel Network Argument type: rasterDestination Acceptable values: - Path for new raster layer BASELEVEL: Channel Network Base Level Argument type: rasterDestination Acceptable values: - Path for new raster layer THRESHOLD: Tension Threshold Default value: 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 MAXITER: Maximum Iterations 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 NOUNDERGROUND: Keep Base Level below Surface Default value: true Argument type: boolean Acceptable values: - 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

sagang_verticaldistancetochannelnetwork(
  ELEVATION = qgisprocess:::qgis_default_value(),
  CHANNELS = qgisprocess:::qgis_default_value(),
  DISTANCE = qgisprocess:::qgis_default_value(),
  BASELEVEL = qgisprocess:::qgis_default_value(),
  THRESHOLD = qgisprocess:::qgis_default_value(),
  MAXITER = qgisprocess:::qgis_default_value(),
  NOUNDERGROUND = qgisprocess:::qgis_default_value(),
  ...,
  .complete_output = .complete_output_option(),
  .quiet = .quiet_option(),
  .messages = .message_option()
)

Arguments

ELEVATION

raster - Elevation. Path to a raster layer.

CHANNELS

raster - Channel Network. Path to a raster layer.

DISTANCE

rasterDestination - Vertical Distance to Channel Network. Path for new raster layer.

BASELEVEL

rasterDestination - Channel Network Base Level. Path for new raster layer.

THRESHOLD

number - Tension Threshold. 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.

MAXITER

number - Maximum Iterations. 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.

NOUNDERGROUND

boolean - Keep Base Level below Surface. 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.

...

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

  • BASELEVEL - outputRaster - Channel Network Base Level

  • DISTANCE - outputRaster - Vertical Distance to Channel Network