The boundcrs.dat file associates (links) Coordinate Reference Systems to datum transformations.
Datums are defined in datum.dat or epsg.db.
The format that is used by boundcrs.dat is shown below:
CRS_ID,EPSG-CRS-ID,DatumTxID
where:
• CRS_ID is a unique identifier for the map definition lookup key.
• EPSG-CRS-ID is the EPSG identifier for the coordinate reference system.
• DatumTxID is the identifier for a datum transformation. N/A can be entered for no transformation.
Sample
Entries from boundcrs.dat:
[UTM - WGS84] |
UTM-01N,EPSG:32601,WG84 |
UTM-02N,EPSG:32602,WG84 |
UTM-03N,EPSG:32603,WG84 |
UTM-04N,EPSG:32604,WG84 |
UTM-05N,EPSG:32605,WG84 |
UTM-06N,EPSG:32606,WG84 |