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Maplex Constrain Offset Enumeration.
| Constant | Value | Description | 
|---|---|---|
| esriMaplexNoConstraint | 0 | Label aligned horizontally to map page. | 
| esriMaplexAboveLine | 1 | Label aligned to graticule. | 
| esriMaplexBelowLine | 2 | Label aligned by expression. | 
| esriMaplexLeftOfLine | 3 | Label aligned to feature direction. | 
| esriMaplexRightOfLine | 4 | Label aligned to feature direction and constrained to left. |