bool ConvertTargetToSource(const CoordPoint &targetPoint, CoordPoint &sourcePoint) const
A method to convert a CoordPoint in the TargetCoordSys to a CoordPoint in the SourceCoordSys. Note that this only handles single transformations. In order to perform more complicated concatenations (such as a vertical and horizontal transform, or a transform that requires an intermediate) you must use ConcatenatedTransform and generate a PointTransformer.