complexType AbstractDatumType

complexType {http://www.opengis.net/gml}AbstractDatumType

Type Heirarchy
{http://www.opengis.net/gml}AbstractGMLType (by restriction)
 {http://www.opengis.net/gml}DefinitionType (by restriction)
  {http://www.opengis.net/gml}AbstractDatumBaseType (by extension)
   {http://www.opengis.net/gml}AbstractDatumType
Derived Types
{http://www.opengis.net/gml}AbstractDatumType
 {http://www.opengis.net/gml}GeodeticDatumType (by extension)
  {http://www.opengis.net/gml}GeodeticDatum (by type)
 {http://www.opengis.net/gml}EngineeringDatumType (by extension)
  {http://www.opengis.net/gml}EngineeringDatum (by type)
 {http://www.opengis.net/gml}TemporalDatumBaseType (by restriction)
  {http://www.opengis.net/gml}TemporalDatumType (by extension)
   {http://www.opengis.net/gml}TemporalDatum (by type)
 {http://www.opengis.net/gml}_Datum (by type)
 {http://www.opengis.net/gml}ImageDatumType (by extension)
  {http://www.opengis.net/gml}ImageDatum (by type)
 {http://www.opengis.net/gml}VerticalDatumType (by extension)
  {http://www.opengis.net/gml}VerticalDatum (by type)
Abstracttrue (This cannot be used in an instance)
Target Namespacehttp://www.opengis.net/gml
Declared Namespacesxmlns:gml=http://www.opengis.net/gml
xmlns=http://www.w3.org/2001/XMLSchema


Source

<complexType name="AbstractDatumType" abstract="true">
    <
annotation>
        <
documentation>A datum specifies the relationship of a coordinate system to the earth, thus creating a coordinate reference system. A datum uses a parameter or set of parameters that determine the location of the origin of the coordinate reference system. Each datum subtype can be associated with only specific types of coordinate systems. This abstract complexType shall not be used, extended, or restricted, in an Application Schema, to define a concrete subtype with a meaning equivalent to a concrete subtype specified in this document.</documentation>
    </
annotation>
    <
complexContent>
        <
extension base="gml:AbstractDatumBaseType">
            <
sequence>
                <
element ref="gml:datumID" minOccurs="0" maxOccurs="unbounded">
                    <
annotation>
                        <
documentation>Set of alternative identifications of this datum. The first datumID, if any, is normally the primary identification code, and any others are aliases.</documentation>
                    </
annotation>
                </
element>
                <
element ref="gml:remarks" minOccurs="0">
                    <
annotation>
                        <
documentation>Comments on this reference system, including source information.</documentation>
                    </
annotation>
                </
element>
                <
element ref="gml:anchorPoint" minOccurs="0"/>
                <
element ref="gml:realizationEpoch" minOccurs="0"/>
                <
element ref="gml:scope" minOccurs="0"/>
            </
sequence>
        </
extension>
    </
complexContent>
</
complexType>


Documentation

A datum specifies the relationship of a coordinate system to the earth, thus creating a coordinate reference system. A datum uses a parameter or set of parameters that determine the location of the origin of the coordinate reference system. Each datum subtype can be associated with only specific types of coordinate systems. This abstract complexType shall not be used, extended, or restricted, in an Application Schema, to define a concrete subtype with a meaning equivalent to a concrete subtype specified in this document.


complexType AbstractDatumType


Stylus Studio XML Schema Library Home
Site Map | Privacy Policy | Terms of Use | Trademarks
Stylus Scoop XML Newsletter:
W3C Member
Stylus Studio®, a product from DataDirect Technologies, is a registered trademark of Progress Software Corporation, in the U.S. and other countries. © 2004-2006 All Rights Reserved.