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See:
          Description
| Class Summary | |
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| NTv2Transformation | An NTv2 Transformation uses a GridShift file to transform ordinates defined in a source CRS based on a given ellipsoid to ordinates in a target CRS based on another ellipsoid. | 
A Transformation can be defined as an mathematical operation which transforms some values into other values using a specified function. In geographic terms this means, that some incoming ordinate in a specified crs, must be transformed into a ordinate valid for some other crs.
The NTv2 transformation allows coordinate transformation with a datum shift by using a Gridshift file.
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