- m -
- Map : MgResourceType
- MapDefinition : MgResourceType
- MapInfo : MgCoordinateSystemUnitCode
- MappingService : MgServiceType
- MAPSCL : MgCoordinateSystemErrorCode
- MAX15 : MgCoordinateSystemErrorCode
- Mentor : MgCoordinateSystemCodeFormat
- MEREQU : MgCoordinateSystemErrorCode
- Meter : MgCoordinateSystemUnitCode
- MicroInch : MgCoordinateSystemUnitCode
- Mil : MgCoordinateSystemUnitCode
- Mile : MgCoordinateSystemUnitCode
- Miller : MgCoordinateSystemProjectionCode
- Millimeter : MgCoordinateSystemUnitCode
- Millisec : MgCoordinateSystemUnitCode
- Minute : MgCoordinateSystemUnitCode
- Mndotl : MgCoordinateSystemProjectionCode
- Mndott : MgCoordinateSystemProjectionCode
- Modpc : MgCoordinateSystemProjectionCode
- Mollweid : MgCoordinateSystemProjectionCode
- Molodensky : MgCoordinateSystemGeodeticTransformationMethod
- MRCAT : MgCoordinateSystemErrorCode
- Mrcat : MgCoordinateSystemProjectionCode
- MrcatK : MgCoordinateSystemProjectionCode
- MReg : MgCoordinateSystemGeodeticTransformationMethod
- MSCOEF : MgCoordinateSystemErrorCode
- Mstero : MgCoordinateSystemProjectionCode
- MultiCurvePolygon : MgGeometryType
- MultiCurveString : MgGeometryType
- MultiGeometry : MgGeometryType
- MultiLineString : MgGeometryType
- MultiPoint : MgGeometryType
- MultiPolygon : MgGeometryType