Abstract: A computer receives a set of Cartesian data and a set of geodetic data. A set of control points may be generated. A plurality of sets of Cartesian coordinates for each control point may be determined, wherein each set of coordinates corresponds to a Cartesian system. A deviation is determined for a combination that includes a control point and a Cartesian system. For each set of Cartesian coordinates associated with the Cartesian system that is included in the combination, and further associated with a control point not in the combination, the set of coordinates is modified according to the deviation. A cumulative deviation is determined for a plurality of combinations by determining a sum of distances of each set of modified Cartesian coordinates from the coordinates of the corresponding point in the Cartesian data. A combination associated with a minimum cumulative deviation is identified.

Abstract: A computer receives a set of Cartesian data and a set of geodetic data relating to a geographic area. A set of control points is generated, each control point being associated with a coordinate expressed in terms of latitude and longitude, and with a corresponding point in the Cartesian data. A plurality of sets of Cartesian coordinates is determined for each of the control points, each of the sets of Cartesian coordinates for one of the control points corresponding to a Cartesian system. A deviation is determined for a combination that includes a control point and a Cartesian system, the deviation being a difference between coordinates for the point in the Cartesian data and the set of Cartesian coordinates for the control point. For each set of Cartesian coordinates associated with the Cartesian system that is included in the combination, but further associated with a control point not in the combination, the set of Cartesian coordinates is modified according to the deviation.