| Name | Description | |
|---|---|---|
  | Create | Creates a projection transformation from two spatial references and an extent of interest. Automatically selects a geographic transformation for the projection. |
| CreateEx | Creates a projection transformation from two spatial references and the given datum transformation. |
| CreateWithVertical | Creates a projection transformation from two spatial references each having a vertical coordinate system, and possibly an extent of interest. Automatically selects a hv (horizontal/vertical) datum transformation for the projection. |
| FindTransformations | Gets a list of applicable transformations to use when projecting geometries from the input spatial reference to the output spatial reference. |
| GetInverse | Creates an inverse ProjectionTransformation instance. The inverse has swapped input and output spatial references and has an inverted CompositeGeographicTransformation. |