sagang_slopeaspectcurvature: QGIS algorithm - Slope, aspect, curvature

In JanCaha/r_package_qgis: An extension of package "qgisprocess" providing direct R functions for QGIS functions

QGIS algorithm - Slope, aspect, curvature

Description

QGIS Algorithm provided by SAGA Next Gen Slope, aspect, curvature (sagang:slopeaspectcurvature). —————- Arguments —————- ELEVATION: Elevation Argument type: raster Acceptable values: - Path to a raster layer SLOPE: Slope Argument type: rasterDestination Acceptable values: - Path for new raster layer ASPECT: Aspect Argument type: rasterDestination Acceptable values: - Path for new raster layer C_GENE: General Curvature Argument type: rasterDestination Acceptable values: - Path for new raster layer C_PROF: Profile Curvature Argument type: rasterDestination Acceptable values: - Path for new raster layer C_PLAN: Plan Curvature Argument type: rasterDestination Acceptable values: - Path for new raster layer C_TANG: Tangential Curvature Argument type: rasterDestination Acceptable values: - Path for new raster layer C_LONG: Longitudinal Curvature Argument type: rasterDestination Acceptable values: - Path for new raster layer C_CROS: Cross-Sectional Curvature Argument type: rasterDestination Acceptable values: - Path for new raster layer C_MINI: Minimal Curvature Argument type: rasterDestination Acceptable values: - Path for new raster layer C_MAXI: Maximal Curvature Argument type: rasterDestination Acceptable values: - Path for new raster layer C_TOTA: Total Curvature Argument type: rasterDestination Acceptable values: - Path for new raster layer C_ROTO: Flow Line Curvature Argument type: rasterDestination Acceptable values: - Path for new raster layer METHOD: Method Default value: 6 Argument type: enum Available values: - 0: (0) maximum slope (Travis et al. 1975) - 1: (1) maximum triangle slope (Tarboton 1997) - 2: (2) least squares fitted plane (Horn 1981, Costa-Cabral & Burgess 1996) - 3: (3) 6 parameter 2nd order polynom (Evans 1979) - 4: (4) 6 parameter 2nd order polynom (Heerdegen & Beran 1982) - 5: (5) 6 parameter 2nd order polynom (Bauer, Rohdenburg, Bork 1985) - 6: (6) 9 parameter 2nd order polynom (Zevenbergen & Thorne 1987) - 7: (7) 10 parameter 3rd order polynom (Haralick 1983) - 8: (8) 10 parameter 3rd order polynom (Florinsky 2009) Acceptable values: - Number of selected option, e.g. '1' - Comma separated list of options, e.g. '1,3' UNIT_SLOPE: Unit Default value: 0 Argument type: enum Available values: - 0: (0) radians - 1: (1) degree - 2: (2) percent rise Acceptable values: - Number of selected option, e.g. '1' - Comma separated list of options, e.g. '1,3' UNIT_ASPECT: Unit Default value: 0 Argument type: enum Available values: - 0: (0) radians - 1: (1) degree Acceptable values: - Number of selected option, e.g. '1' - Comma separated list of options, e.g. '1,3'

Usage

sagang_slopeaspectcurvature(
  ELEVATION = qgisprocess:::qgis_default_value(),
  SLOPE = qgisprocess:::qgis_default_value(),
  ASPECT = qgisprocess:::qgis_default_value(),
  C_GENE = qgisprocess:::qgis_default_value(),
  C_PROF = qgisprocess:::qgis_default_value(),
  C_PLAN = qgisprocess:::qgis_default_value(),
  C_TANG = qgisprocess:::qgis_default_value(),
  C_LONG = qgisprocess:::qgis_default_value(),
  C_CROS = qgisprocess:::qgis_default_value(),
  C_MINI = qgisprocess:::qgis_default_value(),
  C_MAXI = qgisprocess:::qgis_default_value(),
  C_TOTA = qgisprocess:::qgis_default_value(),
  C_ROTO = qgisprocess:::qgis_default_value(),
  METHOD = qgisprocess:::qgis_default_value(),
  UNIT_SLOPE = qgisprocess:::qgis_default_value(),
  UNIT_ASPECT = qgisprocess:::qgis_default_value(),
  ...,
  .complete_output = .complete_output_option(),
  .quiet = .quiet_option(),
  .messages = .message_option()
)

Arguments

ELEVATION	raster - Elevation. Path to a raster layer.
SLOPE	rasterDestination - Slope. Path for new raster layer.
ASPECT	rasterDestination - Aspect. Path for new raster layer.
C_GENE	rasterDestination - General Curvature. Path for new raster layer.
C_PROF	rasterDestination - Profile Curvature. Path for new raster layer.
C_PLAN	rasterDestination - Plan Curvature. Path for new raster layer.
C_TANG	rasterDestination - Tangential Curvature. Path for new raster layer.
C_LONG	rasterDestination - Longitudinal Curvature. Path for new raster layer.
C_CROS	rasterDestination - Cross-Sectional Curvature. Path for new raster layer.
C_MINI	rasterDestination - Minimal Curvature. Path for new raster layer.
C_MAXI	rasterDestination - Maximal Curvature. Path for new raster layer.
C_TOTA	rasterDestination - Total Curvature. Path for new raster layer.
C_ROTO	rasterDestination - Flow Line Curvature. Path for new raster layer.
METHOD	enum of ⁠("(0) maximum slope (Travis et al. 1975)", "(1) maximum triangle slope (Tarboton 1997)", "(2) least squares fitted plane (Horn 1981, Costa-Cabral & Burgess 1996)", "(3) 6 parameter 2nd order polynom (Evans 1979)", "(4) 6 parameter 2nd order polynom (Heerdegen & Beran 1982)", "(5) 6 parameter 2nd order polynom (Bauer, Rohdenburg, Bork 1985)", "(6) 9 parameter 2nd order polynom (Zevenbergen & Thorne 1987)", "(7) 10 parameter 3rd order polynom (Haralick 1983)", "(8) 10 parameter 3rd order polynom (Florinsky 2009)")⁠ - Method. Number of selected option, e.g. '1'. Comma separated list of options, e.g. '1,3'.
UNIT_SLOPE	enum of ⁠("(0) radians", "(1) degree", "(2) percent rise")⁠ - Unit. Number of selected option, e.g. '1'. Comma separated list of options, e.g. '1,3'.
UNIT_ASPECT	enum of ⁠("(0) radians", "(1) degree")⁠ - Unit. Number of selected option, e.g. '1'. Comma separated list of options, e.g. '1,3'.
...	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

• ASPECT - outputRaster - Aspect

• C_CROS - outputRaster - Cross-Sectional Curvature

• C_GENE - outputRaster - General Curvature

• C_LONG - outputRaster - Longitudinal Curvature

• C_MAXI - outputRaster - Maximal Curvature

• C_MINI - outputRaster - Minimal Curvature

• C_PLAN - outputRaster - Plan Curvature

• C_PROF - outputRaster - Profile Curvature

• C_ROTO - outputRaster - Flow Line Curvature

• C_TANG - outputRaster - Tangential Curvature

• C_TOTA - outputRaster - Total Curvature

• SLOPE - outputRaster - Slope

JanCaha/r_package_qgis documentation built on July 6, 2024, 3:05 p.m.