File Geodatabase (FGDB) is a proprietary Esri database format, favoured for more complex uses of GIS datasets in Esri software. This format is often used because it allows for much larger file formats and can provide better performance than Shapefiles. FGDB also accurately represents the data, without introducing quality issues (such as limits to attribute names in Shapefiles).
Supported data types
Koordinates supports the import and export of vector FGDBs. We do not at present support raster or grid FGDB, nor do we support relational FGDBs.
Vector FGDBs can contain multiple feature classes. As defined by Esri, a feature class is a collection of features "each having the same spatial representation, such as points, lines, or polygons, and a common set of attribute columns." When FGDBs are imported into Koordinates, each feature class is treated as an individual vector data layer.
Notes on FGDB exports
- Exports of multiple layers in FGDB are provided in separate FGDB files.
Metadata is inserted into FGDBs, which allows users to query metadata from within their software application. We also provide an .xmls metadata file with each database.
The Koordinates platform uses the EPSG projection database. While FGDB imports can use Esri projections, note that this projection will need to map to an EPSG number within Koordinates.