altitudeSysDef
altitudeSysDef(altitudeDatumName = NULL, altitudeResolution = NULL, altitudeDistanceUnits = NULL, altitudeEncodingMethod = NULL)
altitudeDatumName | The identification given to the surface taken as the surface of reference from which altitudes are measured. See |
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altitudeResolution | The minimum distance possible between two adjacent altitude values, expressed in Altitude Distance Units of measure. See |
altitudeDistanceUnits | Units in which altitude is measured. See |
altitudeEncodingMethod | The means used to encode the altitudes. See |
a altitudeSysDef list object