GeoGridPosition
GeoGridPosition[{x,y},proj] represents a point {x,y} in a planimetric cartographic grid using the projection proj.
GeoGridPosition[{x,y,h},proj] represents a point {x,y,h} in a cartographic grid with height h with respect to the reference ellipsoid.
GeoGridPosition[{{x1,y1},{x2,y2},…},proj] represents an array of cartographic grid positions.
GeoGridPosition[{x,y,h},proj,datum] represents a point in a cartographic grid obtained by projection from data in the given datum.
GeoGridPosition[entity,proj] returns the cartographic grid position of the specified geographical entity.
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