Spatial Data File
Spatial Data File (SDF) is a single-user geodatabase file format developed by Autodesk. The file format is the native spatial data storage format for several of Autodesk GIS programs MapGuide and AutoCAD Map 3D. The format can be created and manipulated using an OSGeo FDO Provider for SDF,[1] which is open source software.
The SDF format design uses low-level storage components of SQLite using a flat binary serialization (binary large objects). However, the relational aspects are not present, thus the format cannot be opened with any software designed specifically for SQLite. The format supports multiple feature classes per file and multiple geometry properties per feature class. Each geometry property is indexed using an R-tree. It is optimized for fast spatial reading of large datasets in single-writer multiple-reader scenarios.[2]
References
- ^ "FDO Provider for SDF". Open Source Geospatial Foundation. December 29, 2006.
- ^ Bray, Robert (2008). "Chapter 7: MapGuide Open Source". Open Source Approaches in Spatial Data Handling. Advances in Geographic Information Science. Vol. Volume 2. Springer Berlin Heidelberg. pp. 131–152. doi:10.1007/978-3-540-74831-1.
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