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A filter for lists of coordinate systems.
| Constant | Value | Description | 
|---|---|---|
| esriFilterGCS | 1 | Show only geographic coordinate systems. | 
| esriFilterPCS | 2 | Show only projected coordinate systems | 
| esriFilterHCS | 3 | Show horizontal coordinate systems (geographic and projected). | 
| esriFilterVCS | 8 | Show only vertical coordinate systems. |