QGIS algorithm - Terrain surface classification (iwahashi and pike)

Source: R/sagang_terrainsurfaceclassificationiwahashiandpike.R

QGIS Algorithm provided by SAGA Next Gen Terrain surface classification (iwahashi and pike) (sagang:terrainsurfaceclassificationiwahashiandpike). —————- Arguments —————- DEM: Elevation Argument type: raster Acceptable values: - Path to a raster layer SLOPE: Slope (optional) Argument type: raster Acceptable values: - Path to a raster layer CONVEXITY: Convexity (optional) Argument type: raster Acceptable values: - Path to a raster layer CONV_RECALC: Recalculate Default value: false 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 TEXTURE: Texture (optional) Argument type: raster Acceptable values: - Path to a raster layer TEXT_RECALC: Recalculate Default value: false 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 LANDFORMS: Landforms Argument type: rasterDestination Acceptable values: - Path for new raster layer TYPE: Number of Classes Default value: 2 Argument type: enum Available values: - 0: (0) 8 - 1: (1) 12 - 2: (2) 16 Acceptable values: - Number of selected option, e.g. '1' - Comma separated list of options, e.g. '1,3' CONV_SCALE: Scale (Cells) Default value: 10 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 CONV_KERNEL: Laplacian Filter Kernel Default value: 0 Argument type: enum Available values: - 0: (0) four-neighbourhood - 1: (1) eight-neihbourhood - 2: (2) eight-neihbourhood (distance based weighting) Acceptable values: - Number of selected option, e.g. '1' - Comma separated list of options, e.g. '1,3' CONV_TYPE: Type Default value: 0 Argument type: enum Available values: - 0: (0) convexity - 1: (1) concavity Acceptable values: - Number of selected option, e.g. '1' - Comma separated list of options, e.g. '1,3' CONV_EPSILON: Flat Area Threshold 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 TEXT_SCALE: Scale (Cells) Default value: 10 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 TEXT_EPSILON: Flat Area 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

sagang_terrainsurfaceclassificationiwahashiandpike(
  DEM = qgisprocess:::qgis_default_value(),
  SLOPE = qgisprocess:::qgis_default_value(),
  CONVEXITY = qgisprocess:::qgis_default_value(),
  CONV_RECALC = qgisprocess:::qgis_default_value(),
  TEXTURE = qgisprocess:::qgis_default_value(),
  TEXT_RECALC = qgisprocess:::qgis_default_value(),
  LANDFORMS = qgisprocess:::qgis_default_value(),
  TYPE = qgisprocess:::qgis_default_value(),
  CONV_SCALE = qgisprocess:::qgis_default_value(),
  CONV_KERNEL = qgisprocess:::qgis_default_value(),
  CONV_TYPE = qgisprocess:::qgis_default_value(),
  CONV_EPSILON = qgisprocess:::qgis_default_value(),
  TEXT_SCALE = qgisprocess:::qgis_default_value(),
  TEXT_EPSILON = qgisprocess:::qgis_default_value(),
  ...,
  .complete_output = .complete_output_option(),
  .quiet = .quiet_option(),
  .messages = .message_option()
)

Arguments

DEM

raster - Elevation. Path to a raster layer.

SLOPE

raster - Slope. Path to a raster layer.

CONVEXITY

raster - Convexity. Path to a raster layer.

CONV_RECALC

boolean - Recalculate. 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.

TEXTURE

raster - Texture. Path to a raster layer.

TEXT_RECALC

boolean - Recalculate. 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.

LANDFORMS

rasterDestination - Landforms. Path for new raster layer.

TYPE

enum of ("(0) 8", "(1) 12", "(2) 16") - Number of Classes. Number of selected option, e.g. '1'. Comma separated list of options, e.g. '1,3'.

CONV_SCALE

number - Scale (Cells). 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.

CONV_KERNEL

enum of ("(0) four-neighbourhood", "(1) eight-neihbourhood", "(2) eight-neihbourhood (distance based weighting)") - Laplacian Filter Kernel. Number of selected option, e.g. '1'. Comma separated list of options, e.g. '1,3'.

CONV_TYPE

enum of ("(0) convexity", "(1) concavity") - Type. Number of selected option, e.g. '1'. Comma separated list of options, e.g. '1,3'.

CONV_EPSILON

number - Flat Area 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.

TEXT_SCALE

number - Scale (Cells). 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.

TEXT_EPSILON

number - Flat Area 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.

...

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

  • LANDFORMS - outputRaster - Landforms