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Provides access to members that control approximation for geodata transforms.
| Name | Description | |
|---|---|---|
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Approximation | Indicates if approximation is on or off. | 
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GridSize | The approximation grid size in pixels in output space. | 
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RecalculateTolerance | Indicates if the tolerance can be recalculated based on input cellsize. | 
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Tolerance | The approximation error tolerance in distance in input space. | 
| Classes | Description | 
|---|---|
| ApproximationXform | A transformation that approximates other transformations. | 
| CoordinateXform | A coordinate transform class. | 
IGeodataXformApproximation is used to set the properties when creating an ApproximationXform