Create (TgmGridMap)

pt 

GetXIndexAndFraction (TgmGridMap)

pt 

GetYIndexAndFraction (TgmGridMap)

LengthAlongSurface (TgmGridMap)

MatchToPointlist (TgmGridMap)

NormalAndZ (TgmGridMap)

ProjectPoint (TgmGridMap)

SetArea (TgmGridMap)

SetGridSize (TgmGridMap)

pt 

ValidateGrid (TgmGridMap)

pt 

ValidateGridCell (TgmGridMap)

ZValue (TgmGridMap)