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Orbit Vector File Tiled
An Orbit Vector Tiled file (*.ovt) is Orbit's native tiled vector file storage format.
An OVT stores spatial objects (geometry), attribute information and indexes on both components.
Structure
An Orbit Vector Tiled file has similar data structure capabilities as the Orbit Vector File, additionally both its spatial and attribute component are indexed.
Reason to use
The OVT is optimized for fast viewing and querying of vector data. The format is platform independent. The dataset is read only, both spatial and attribute component cannot be edited.
An OVT is extremely powerful in combination with dataset scale range limits to handle fastly large vector resources with minimum memory and cpu requirements.
Create and Update
- Create by export datasets, see Dataset Context Menu
- Create by xport selection, see Object Inspector
- Update : An OVT is read only, to edit export to OVF, updated and export back to OVT.
Legend and Georeference
The resource can be accompanied by an Orbit Legend File and Orbit Resource Descriptor.