ESRI File Geodatabase raster (OpenFileGDB)
New in version 3.7.
Driver short name
Driver built-in by default
This driver is built-in by default
The OpenFileGDB driver provides read access to raster layers of File Geodatabases (.gdb directories) created by ArcGIS 10 and above. The dataset name must be the directory/folder name, and it must end with the .gdb extension.
It can also read directly zipped .gdb directories (with .gdb.zip extension), provided they contain a .gdb directory at their first level.
The driver supports:
reading CRS information
exposing nodata mask band or nodata value
uncompressed, LZ77, JPEG and JPEG2000 compression methods.
exposing value attribute tables as GDAL Raster attribute tables.
This driver supports georeferencing
This driver supports virtual I/O operations (/vsimem/, etc.)
When a File Geodatabase contains several raster layers, the raster layer that must be opened is specified with the following connection string
When opening a dataset with pointing only to the .gdb directory, and if it contains several raster layers, a list of subdatasets is returned by the driver
NONEor numeric nodata value.
In AUTO mode, the driver will expose a dataset nodata mask band, unless the band data type is Float32 or Float64, in which case a nodata value is used.
In MASK mode, the driver will expose a dataset nodata mask band for all data types.
In NONE mode, the driver will not expose a nodata mask band or a nodata value.
When specifying a numeric nodata value (
nanaccepted for Float32 or Float64), it is used as the band nodata value. The nodata value should be selected outside the range of valid values (but within the range of the data type).
xml:definition metadata domains contain the
XML content from the
GDB_Items table related to the raster layer.
List raster layers from a FileGDB
Open a given subdataset:
OpenFileGDB vector documentation page
Thanks to Richard Barnes and his ArcRescue tool for the deciphering of the band_types field which indicates the compression method and the data type.