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Direction of flow along an edge in a network.
| Constant | Value | Description | 
|---|---|---|
| esriFDIndeterminate | 3 | The flow direction is indeterminate. | 
| esriFDWithFlow | 1 | The flow direction is in the direction of digitization. | 
| esriFDAgainstFlow | 2 | The flow direction is opposite the direction of digitization. | 
| esriFDUninitialized | 0 | The flow direction is uninitialized. |