SAGA-GIS Tool Library Documentation (v9.1.2)

Tool Create Virtual Raster (VRT)

The tool allows one to create a virtual dataset (VRT) which is a mosaic of the input raster datasets. Such a VRT can be used for seamless data access to a large number of raster tiles, a typical application is the clipping of raster tiles from such a VRT.


GDAL Version:3.6.2

Following raster formats are currently supported:

IDNameExtension
ECWERDAS Compressed Wavelets (SDK 5.5)ecw
JP2ECWERDAS JPEG2000 (SDK 5.5)jp2
FITSFlexible Image Transport System
HDF4Hierarchical Data Format Release 4hdf
HDF4ImageHDF4 Dataset
HDF5Hierarchical Data Format Release 5
HDF5ImageHDF5 Dataset
BAGBathymetry Attributed Gridbag
KEAKEA Image Format (.kea)kea
netCDFNetwork Common Data Formatnc
PDFGeospatial PDFpdf
VRTVirtual Rastervrt
DERIVEDDerived datasets using VRT pixel functions
GTiffGeoTIFFtif
NITFNational Imagery Transmission Formatntf
RPFTOCRaster Product Format TOC formattoc
ECRGTOCECRG TOC formatxml
HFAErdas Imagine Images (.img)img
SAR_CEOSCEOS SAR Image
CEOSCEOS Image
JAXAPALSARJAXA PALSAR Product Reader (Level 1.1/1.5)
GFFGround-based SAR Applications Testbed File Format (.gff)gff
ELASELAS
ESRICEsri Compact Cache
AIGArc/Info Binary Grid
AAIGridArc/Info ASCII Gridasc
GRASSASCIIGridGRASS ASCII Grid
ISGInternational Service for the Geoidisg
SDTSSDTS Rasterddf
DTEDDTED Elevation Raster
PNGPortable Network Graphicspng
JPEGJPEG JFIFjpg
MEMIn Memory Raster
JDEMJapanese DEM (.mem)mem
GIFGraphics Interchange Format (.gif)gif
BIGGIFGraphics Interchange Format (.gif)gif
ESATEnvisat Image Formatn1
BSBMaptech BSB Nautical Chartskap
XPMX11 PixMap Formatxpm
BMPMS Windows Device Independent Bitmapbmp
DIMAPSPOT DIMAP
AirSARAirSAR Polarimetric Image
RS2RadarSat 2 XML Product
SAFESentinel-1 SAR SAFE Product
PCIDSKPCIDSK Database Filepix
PCRasterPCRaster Raster Filemap
ILWISILWIS Raster Map
SGISGI Image File Format 1.0rgb
SRTMHGTSRTMHGT File Formathgt
LevellerLeveller heightfieldter
TerragenTerragen heightfieldter
ISIS3USGS Astrogeology ISIS cube (Version 3)
ISIS2USGS Astrogeology ISIS cube (Version 2)
PDSNASA Planetary Data System
PDS4NASA Planetary Data System 4xml
VICARMIPL VICAR file
TILEarthWatch .TIL
ERSERMapper .ers Labelleders
JP2OpenJPEGJPEG-2000 driver based on OpenJPEG libraryjp2
L1BNOAA Polar Orbiter Level 1b Data Set
FITFIT Image
GRIBGRIdded Binary (.grb, .grb2)
RMFRaster Matrix Formatrsw
WCSOGC Web Coverage Service
WMSOGC Web Map Service
MSGNEUMETSAT Archive native (.nat)nat
RSTIdrisi Raster A.1rst
GSAGGolden Software ASCII Grid (.grd)grd
GSBGGolden Software Binary Grid (.grd)grd
GS7BGGolden Software 7 Binary Grid (.grd)grd
COSARCOSAR Annotated Binary Matrix (TerraSAR-X)
TSXTerraSAR-X Product
COASPDRDC COASP SAR Processor Rasterhdr
RR Object Data Storerda
MAPOziExplorer .MAP
KMLSUPEROVERLAYKml Super Overlay
WEBPWEBPwebp
RasterliteRasterlitesqlite
MBTilesMBTilesmbtiles
PLMOSAICPlanet Labs Mosaics API
CALSCALS (Type 1)
WMTSOGC Web Map Tile Service
SENTINEL2Sentinel 2
MRFMeta Raster Formatmrf
PNMPortable Pixmap Format (netpbm)
DOQ1USGS DOQ (Old Style)
DOQ2USGS DOQ (New Style)
PAuxPCI .aux Labelled
MFFVexcel MFF Rasterhdr
MFF2Vexcel MFF2 (HKV) Raster
GSCGSC Geogrid
FASTEOSAT FAST Format
BTVTP .bt (Binary Terrain) 1.3 Formatbt
LANErdas .LAN/.GIS
CPGConvair PolGASP
NDFNLAPS Data Format
EIRErdas Imagine Raw
DIPExDIPEx
LCPFARSITE v.4 Landscape File (.lcp)lcp
GTXNOAA Vertical Datum .GTXgtx
LOSLASNADCON .los/.las Datum Grid Shift
NTv2NTv2 Datum Grid Shift
CTable2CTable2 Datum Grid Shift
ACE2ACE2ACE2
SNODASSnow Data Assimilation Systemhdr
KROKOLOR Rawkro
ROI_PACROI_PAC raster
RRASTERR Rastergrd
BYNNatural Resources Canada's Geoid
ARGAzavea Raster Grid format
RIKSwedish Grid RIK (.rik)rik
USGSDEMUSGS Optional ASCII DEM (and CDED)dem
GXFGeoSoft Grid Exchange Formatgxf
NWT_GRDNorthwood Numeric Grid Format .grd/.tabgrd
NWT_GRCNorthwood Classified Grid Format .grc/.tabgrc
ADRGARC Digitized Raster Graphicsgen
SRPStandard Raster Product (ASRP/USRP)img
BLXMagellan topo (.blx)blx
PostGISRasterPostGIS Raster driver
SAGASAGA GIS Binary Grid (.sdat, .sg-grd-z)
XYZASCII Gridded XYZxyz
HF2HF2/HFZ heightfield rasterhf2
OZIOziExplorer Image File
CTGUSGS LULC Composite Theme Grid
ZMapZMap Plus Griddat
NGSGEOIDNOAA NGS Geoid Height Gridsbin
IRISIRIS data (.PPI, .CAPPi etc)ppi
PRFRacurs PHOTOMOD PRFprf
EEDAIEarth Engine Data API Image
DAASAirbus DS Intelligence Data As A Service driver
SIGDEMScaled Integer Gridded DEM .sigdemsigdem
TGATGA/TARGA Image File Formattga
OGCAPIOGCAPI
STACTASpatio-Temporal Asset Catalog Tiled Assetsjson
STACITSpatio-Temporal Asset Catalog Items
GPKGGeoPackagegpkg
CADAutoCAD Driverdwg
PLSCENESPlanet Labs Scenes API
NGWNextGIS Web
GenBinGeneric Binary (.hdr Labelled)
ENVIENVI .hdr Labelled
EHdrESRI .hdr Labelledbil
ISCEISCE raster
ZarrZarr
HTTPHTTP Fetching Wrapper


References


Parameters

 NameTypeIdentifierDescriptionConstraints
OptionsFilesFile pathFILESThe input files.-
Input File ListFile path, CMDFILE_LISTA text file with the full path to an input grid on each line.-
VRT FilenameFile pathVRT_NAMEThe full path and name of the .vrt output file.-
ResamplingChoiceRESAMPLINGThe resampling algorithm used when datasets are queried from the VRT.Available Choices:
[0] nearest
[1] bilinear
[2] cubic
[3] cubic spline
[4] lanczos
[5] average
[6] mode
Default: 0
ResolutionChoiceRESOLUTIONThe method how to compute the output resolution if the resolution of all input files is not the same.Available Choices:
[0] highest
[1] lowest
[2] average
[3] user
Default: 0
CellsizeFloating pointCELLSIZE-Minimum: 0.000000
Default: 1.000000
AlignBooleanALIGNAlign the coordinates of the extent to the cellsize.Default: 1

Command-line

Usage: saga_cmd io_gdal 12 [-FILES <str>] [-FILE_LIST <str>] [-VRT_NAME <str>] [-RESAMPLING <str>] [-RESOLUTION <str>] [-CELLSIZE <double>] [-ALIGN <str>]
  -FILES:<str>      	Files
	File path
  -FILE_LIST:<str>  	Input File List
	File path, CMD
  -VRT_NAME:<str>   	VRT Filename
	File path
  -RESAMPLING:<str> 	Resampling
	Choice
	Available Choices:
	[0] nearest
	[1] bilinear
	[2] cubic
	[3] cubic spline
	[4] lanczos
	[5] average
	[6] mode
	Default: 0
  -RESOLUTION:<str> 	Resolution
	Choice
	Available Choices:
	[0] highest
	[1] lowest
	[2] average
	[3] user
	Default: 0
  -CELLSIZE:<double>	Cellsize
	Floating point
	Minimum: 0.000000
	Default: 1.000000
  -ALIGN:<str>      	Align
	Boolean
	Default: 1