nga:DirectionDatumCodeSimpleType

simpleType DirectionDatumCodeSimpleType in namespace http://release.niem.gov/niem/codes/nga_datum/4.0/

Definition

A data type for a reference direction as determined by the means by which it is established (e.g., by the direction of a geographic or magnetic pole of the Earth).

Diagram

Enumerations

Value	Definition
geodetic	Referenced to the direction of the geographic North Pole.
Magnetic	Referenced to the direction of the magnetic North Pole.
militaryGrid	Referenced to the direction of "north" in a military grid established by a suitable map-projection, for example Universal Transverse Mercator (UTM).
Relative	Referenced to a direction established by the context of use (for example: the heading of a vessel).

XML Schema

<xs:simpleType name="DirectionDatumCodeSimpleType">

<xs:annotation>

<xs:documentation>

A data type for a reference direction as determined by the means by which it is established (e.g., by the direction of a geographic or magnetic pole of the Earth).

</xs:documentation>

</xs:annotation>

<xs:restriction base="xs:token">

<xs:enumeration value="geodetic">

<xs:annotation>

<xs:documentation>

Referenced to the direction of the geographic North Pole.

</xs:documentation>

</xs:annotation>

</xs:enumeration>

<xs:enumeration value="Magnetic">

<xs:annotation>

<xs:documentation>

Referenced to the direction of the magnetic North Pole.

</xs:documentation>

</xs:annotation>

</xs:enumeration>

<xs:enumeration value="militaryGrid">

<xs:annotation>

<xs:documentation>

Referenced to the direction of "north" in a military grid established by a suitable map-projection, for example Universal Transverse Mercator (UTM).

</xs:documentation>

</xs:annotation>

</xs:enumeration>

<xs:enumeration value="Relative">

<xs:annotation>

<xs:documentation>

Referenced to a direction established by the context of use (for example: the heading of a vessel).

</xs:documentation>

</xs:annotation>

</xs:enumeration>

</xs:restriction>

</xs:simpleType>