QGIS Algorithm provided by SAGA Next Gen Contour lines (sagang:contourlines). ---------------- Arguments ---------------- GRID: Grid Argument type: raster Acceptable values: - Path to a raster layer CONTOUR: Contour Argument type: vectorDestination Acceptable values: - Path for new vector layer POLYGONS: Polygons Argument type: vectorDestination Acceptable values: - Path for new vector layer VERTEX: Vertex Type Default value: 0 Argument type: enum Available values: - 0: (0) x, y - 1: (1) x, y, z Acceptable values: - Number of selected option, e.g. '1' - Comma separated list of options, e.g. '1,3' SCALE: Interpolation Scale 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 LINE_PARTS: Split Parts 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 POLY_PARTS: Split Polygon Parts 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 ZMIN: Minimum Contour Value 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 ZMAX: Maximum Contour Value Default value: 10000 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 ZSTEP: Equidistance 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

sagang_contourlines(
  GRID = qgisprocess:::qgis_default_value(),
  CONTOUR = qgisprocess:::qgis_default_value(),
  POLYGONS = qgisprocess:::qgis_default_value(),
  VERTEX = qgisprocess:::qgis_default_value(),
  SCALE = qgisprocess:::qgis_default_value(),
  LINE_PARTS = qgisprocess:::qgis_default_value(),
  POLY_PARTS = qgisprocess:::qgis_default_value(),
  ZMIN = qgisprocess:::qgis_default_value(),
  ZMAX = qgisprocess:::qgis_default_value(),
  ZSTEP = qgisprocess:::qgis_default_value(),
  ...,
  .complete_output = .complete_output_option(),
  .quiet = .quiet_option(),
  .messages = .message_option()
)

Arguments

GRID

raster - Grid. Path to a raster layer.

CONTOUR

vectorDestination - Contour. Path for new vector layer.

POLYGONS

vectorDestination - Polygons. Path for new vector layer.

VERTEX

enum of ("(0) x, y", "(1) x, y, z") - Vertex Type. Number of selected option, e.g. '1'. Comma separated list of options, e.g. '1,3'.

SCALE

number - Interpolation Scale. 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.

LINE_PARTS

boolean - Split Parts. 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.

POLY_PARTS

boolean - Split Polygon Parts. 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.

ZMIN

number - Minimum Contour Value. 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.

ZMAX

number - Maximum Contour Value. 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.

ZSTEP

number - Equidistance. 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

  • CONTOUR - outputVector - Contour

  • POLYGONS - outputVector - Polygons