public bool FromPlane(const ProjectedPoint &inputPoint,
GeodeticPoint &outputPoint) const
Description
The FromPlane method 'un-projects' a ProjectedPoint to produce the GeodeticPoint on the Datum that corresponds to the input point. The method takes two arguments, the first of which is the ProjectedPoint that should be 'un-projected', and the second of which is the GeodeticPoint that will hold the result. The method returns a boolean value indicating the success of the operation.