gml:referenceFrame

Element information

Namespace: http://www.opengis.net/gml/3.2

Schema document: external/ogc/gml/3.2.1/temporalReferenceSystems.xsd

Properties: Local, Qualified

Content

gml:TimeCalendarEra [0..1]gml:TimeCalendarEra inherits basic properties from gml:DefinitionType and has the following additional properties: - gml:referenceEvent is the name or description of a mythical or historic event which fixes the position of the base scale of the calendar era. This is given as text or using a link to description held elsewhere. - gml:referenceDate specifies the date of the referenceEvent expressed as a date in the given calendar. In most calendars, this date is the origin (i.e., the first day) of the scale, but this is not always true. - gml:julianReference specifies the Julian date that corresponds to the reference date. The Julian day number is an integer value; the Julian date is a decimal value that allows greater resolution. Transforming calendar dates to and from Julian dates provides a relatively simple basis for transforming dates from one calendar to another. - gml:epochOfUse is the period for which the calendar era was used as a basis for dating.

Attributes

Name	Occ	Type	Description	Notes
owns	[0..1]	xsd:boolean		Default value is "false". from group gml:OwnershipAttributeGroup
xlink:type	[0..1]	xsd:string		Fixed value is "simple". from group xlink:simpleLink
xlink:href	[0..1]	xsd:anyURI		from group xlink:simpleLink
xlink:role	[0..1]	xsd:anyURI		from group xlink:simpleLink
xlink:arcrole	[0..1]	xsd:anyURI		from group xlink:simpleLink
xlink:title	[0..1]	xsd:string		from group xlink:simpleLink
xlink:show	[0..1]	Anonymous	The 'show' attribute is used to communicate the desired presentation of the ending resource on traversal from the starting resource; it's value should be treated as follows: new - load ending resource in a new window, frame, pane, or other presentation context replace - load the resource in the same window, frame, pane, or other presentation context embed - load ending resource in place of the presentation of the starting resource other - behavior is unconstrained; examine other markup in the link for hints none - behavior is unconstrained	from group xlink:simpleLink
xlink:actuate	[0..1]	Anonymous	The 'actuate' attribute is used to communicate the desired timing of traversal from the starting resource to the ending resource; it's value should be treated as follows: onLoad - traverse to the ending resource immediately on loading the starting resource onRequest - traverse from the starting resource to the ending resource only on a post-loading event triggered for this purpose other - behavior is unconstrained; examine other markup in link for hints none - behavior is unconstrained	from group xlink:simpleLink
nilReason	[0..1]	gml:NilReasonType		from group gml:AssociationAttributeGroup
gml:remoteSchema	[0..1]	xsd:anyURI		from group gml:AssociationAttributeGroup

Used in

Type gml:TimeCalendarType (Element gml:TimeCalendar)

Sample instance

<gml:referenceFrame>
   <gml:TimeCalendarEra gml:id="ID">
      <gml:metaDataProperty>
         <gml:GenericMetaData>Any text, intermingled with:
            <!--any element-->
         </gml:GenericMetaData>
      </gml:metaDataProperty>
      <gml:description>string</gml:description>
      <gml:descriptionReference/>
      <gml:identifier codeSpace="http://www.example.com/">string</gml:identifier>
      <gml:name>string</gml:name>
      <gml:remarks>string</gml:remarks>
      <gml:referenceEvent>string</gml:referenceEvent>
      <gml:referenceDate>2000-01-01</gml:referenceDate>
      <gml:julianReference>1.0</gml:julianReference>
      <gml:epochOfUse>
         <gml:TimePeriod gml:id="ID">...
         </gml:TimePeriod>
      </gml:epochOfUse>
   </gml:TimeCalendarEra>
</gml:referenceFrame>