gdal_retile: QGIS algorithm - Retile

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

QGIS algorithm - Retile

Description

QGIS Algorithm provided by GDAL Retile (gdal:retile). —————- Arguments —————- INPUT: Input files Argument type: multilayer TILE_SIZE_X: Tile width Default value: 256 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 TILE_SIZE_Y: Tile height Default value: 256 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 OVERLAP: Overlap in pixels between consecutive tiles 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 LEVELS: Number of pyramids levels to build 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 SOURCE_CRS: Source coordinate reference system (optional) Argument type: crs Acceptable values: - CRS as an auth ID (e.g. 'EPSG:3111') - CRS as a PROJ4 string (e.g. 'PROJ4:…') - CRS as a WKT string (e.g. 'WKT:…') - Path to a layer. The CRS of the layer is used. RESAMPLING: Resampling method Default value: 0 Argument type: enum Available values: - 0: Nearest Neighbour - 1: Bilinear (2x2 Kernel) - 2: Cubic (4x4 Kernel) - 3: Cubic B-Spline (4x4 Kernel) - 4: Lanczos (6x6 Kernel) Acceptable values: - Number of selected option, e.g. '1' - Comma separated list of options, e.g. '1,3' DELIMITER: Column delimiter used in the CSV file (optional) Default value: ; Argument type: string Acceptable values: - String 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 OPTIONS: Additional creation options (optional) Default value: Argument type: string Acceptable values: - String 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 EXTRA: Additional command-line parameters (optional) Argument type: string Acceptable values: - String 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 DATA_TYPE: Output data type Default value: 5 Argument type: enum Available values: - 0: Byte - 1: Int16 - 2: UInt16 - 3: UInt32 - 4: Int32 - 5: Float32 - 6: Float64 - 7: CInt16 - 8: CInt32 - 9: CFloat32 - 10: CFloat64 - 11: Int8 Acceptable values: - Number of selected option, e.g. '1' - Comma separated list of options, e.g. '1,3' ONLY_PYRAMIDS: Build only the pyramids 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 DIR_FOR_ROW: Use separate directory for each tiles row 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 OUTPUT: Output directory Argument type: folderDestination Acceptable values: - Path for an existing or new folder OUTPUT_CSV: CSV file containing the tile(s) georeferencing information (optional) Argument type: fileDestination Acceptable values: - Path for new file

Usage

gdal_retile(
  INPUT = qgisprocess:::qgis_default_value(),
  TILE_SIZE_X = qgisprocess:::qgis_default_value(),
  TILE_SIZE_Y = qgisprocess:::qgis_default_value(),
  OVERLAP = qgisprocess:::qgis_default_value(),
  LEVELS = qgisprocess:::qgis_default_value(),
  SOURCE_CRS = qgisprocess:::qgis_default_value(),
  RESAMPLING = qgisprocess:::qgis_default_value(),
  DELIMITER = qgisprocess:::qgis_default_value(),
  OPTIONS = qgisprocess:::qgis_default_value(),
  EXTRA = qgisprocess:::qgis_default_value(),
  DATA_TYPE = qgisprocess:::qgis_default_value(),
  ONLY_PYRAMIDS = qgisprocess:::qgis_default_value(),
  DIR_FOR_ROW = qgisprocess:::qgis_default_value(),
  OUTPUT = qgisprocess:::qgis_default_value(),
  OUTPUT_CSV = qgisprocess:::qgis_default_value(),
  ...,
  .complete_output = .complete_output_option(),
  .quiet = .quiet_option(),
  .messages = .message_option()
)

Arguments

INPUT	multilayer - Input files. .
TILE_SIZE_X	number - Tile width. 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.
TILE_SIZE_Y	number - Tile height. 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.
OVERLAP	number - Overlap in pixels between consecutive tiles. 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.
LEVELS	number - Number of pyramids levels to build. 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.
SOURCE_CRS	crs - Source coordinate reference system. CRS as an auth ID (e.g. 'EPSG:3111'). CRS as a PROJ4 string (e.g. 'PROJ4:…'). CRS as a WKT string (e.g. 'WKT:…'). Path to a layer. The CRS of the layer is used..
RESAMPLING	enum of ⁠("Nearest Neighbour", "Bilinear (2x2 Kernel)", "Cubic (4x4 Kernel)", "Cubic B-Spline (4x4 Kernel)", "Lanczos (6x6 Kernel)")⁠ - Resampling method. Number of selected option, e.g. '1'. Comma separated list of options, e.g. '1,3'.
DELIMITER	string - Column delimiter used in the CSV file. String 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.
OPTIONS	string - Additional creation options. String 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.
EXTRA	string - Additional command-line parameters. String 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.
DATA_TYPE	enum of ⁠("Byte", "Int16", "UInt16", "UInt32", "Int32", "Float32", "Float64", "CInt16", "CInt32", "CFloat32", "CFloat64", "Int8")⁠ - Output data type. Number of selected option, e.g. '1'. Comma separated list of options, e.g. '1,3'.
ONLY_PYRAMIDS	boolean - Build only the pyramids. 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.
DIR_FOR_ROW	boolean - Use separate directory for each tiles row. 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.
OUTPUT	folderDestination - Output directory. Path for an existing or new folder.
OUTPUT_CSV	fileDestination - CSV file containing the tile(s) georeferencing information. Path for new file.
...	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

• OUTPUT - outputFolder - Output directory

• OUTPUT_CSV - outputFile - CSV file containing the tile(s) georeferencing information

JanCaha/r_package_qgis documentation built on April 12, 2025, 10:51 a.m.