QGIS Algorithm provided by GDAL Build virtual raster (gdal:buildvirtualraster). —————- Arguments —————- INPUT: Input layers Argument type: multilayer RESOLUTION: Resolution Default value: 0 Argument type: enum Available values: - 0: Average - 1: Highest - 2: Lowest Acceptable values: - Number of selected option, e.g. '1' - Comma separated list of options, e.g. '1,3' SEPARATE: Place each input file into a separate band 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 PROJ_DIFFERENCE: Allow projection difference 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 ADD_ALPHA: Add alpha mask band to VRT when source raster has none 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 ASSIGN_CRS: Override projection for the output file (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 algorithm 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) - 5: Average - 6: Mode Acceptable values: - Number of selected option, e.g. '1' - Comma separated list of options, e.g. '1,3' SRC_NODATA: Nodata value(s) for input bands (space separated) (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 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 OUTPUT: Virtual Argument type: rasterDestination Acceptable values: - Path for new raster layer

gdal_buildvirtualraster(
  INPUT = qgisprocess:::qgis_default_value(),
  RESOLUTION = qgisprocess:::qgis_default_value(),
  SEPARATE = qgisprocess:::qgis_default_value(),
  PROJ_DIFFERENCE = qgisprocess:::qgis_default_value(),
  ADD_ALPHA = qgisprocess:::qgis_default_value(),
  ASSIGN_CRS = qgisprocess:::qgis_default_value(),
  RESAMPLING = qgisprocess:::qgis_default_value(),
  SRC_NODATA = qgisprocess:::qgis_default_value(),
  EXTRA = qgisprocess:::qgis_default_value(),
  OUTPUT = qgisprocess:::qgis_default_value(),
  ...,
  .complete_output = .complete_output_option(),
  .quiet = .quiet_option(),
  .messages = .message_option()
)

Arguments

INPUT

multilayer - Input layers. .

RESOLUTION

enum of ("Average", "Highest", "Lowest") - Resolution. Number of selected option, e.g. '1'. Comma separated list of options, e.g. '1,3'.

SEPARATE

boolean - Place each input file into a separate band. 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.

PROJ_DIFFERENCE

boolean - Allow projection difference. 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.

ADD_ALPHA

boolean - Add alpha mask band to VRT when source raster has none. 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.

ASSIGN_CRS

crs - Override projection for the output file. 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)", "Average", "Mode") - Resampling algorithm. Number of selected option, e.g. '1'. Comma separated list of options, e.g. '1,3'.

SRC_NODATA

string - Nodata value(s) for input bands (space separated). 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.

OUTPUT

rasterDestination - Virtual. Path for new raster layer.

...

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 - outputRaster - Virtual