The temporal schema for GML 3.1 provides constructs for handling time-varying spatial data.This schema reflects a partial implementation of the model described in ISO 19108:2002.Copyright (c) 2002-2005 OGC, All Rights Reserved.For conditions, see OGC Software Notice http://www.opengeospatial.org/about/?page=ipr
<element name="timePosition" type="gml:TimePositionType"><annotation><documentation>Direct representation of a temporal position</documentation></annotation></element>
Database handle for the object. It is of XML type ID, so is constrained to be unique in the XML document within which it occurs. An external identifier for the object in the form of a URI may be constructed using standard XML and XPointer methods. This is done by concatenating the URI for the document, a fragment separator, and the value of the id attribute.
Source
<element name="_TimeObject" type="gml:AbstractTimeObjectType" abstract="true" substitutionGroup="gml:_GML"><annotation><documentation xml:lang="en">This abstract element acts as the head of the substitution group for temporal primitives and complexes.</documentation></annotation></element>
Database handle for the object. It is of XML type ID, so is constrained to be unique in the XML document within which it occurs. An external identifier for the object in the form of a URI may be constructed using standard XML and XPointer methods. This is done by concatenating the URI for the document, a fragment separator, and the value of the id attribute.
Source
<element name="_TimePrimitive" type="gml:AbstractTimePrimitiveType" abstract="true" substitutionGroup="gml:_TimeObject"><annotation><documentation xml:lang="en">This abstract element acts as the head of the substitution group for temporal primitives.</documentation></annotation></element>
Reference to an XML Schema fragment that specifies the content model of the propertys value. This is in conformance with the XML Schema Section 4.14 Referencing Schemas from Elsewhere.
The 'actuate' attribute is used to communicate the desired timingof 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 loadingthe starting resourceonRequest - traverse from the starting resource to the endingresource only on a post-loading event triggered forthis purposeother - behavior is unconstrained; examine other markup in linkfor hintsnone - behavior is unconstrained
The 'show' attribute is used to communicate the desired presentationof the ending resource on traversal from the starting resource; it'svalue should be treated as follows:new - load ending resource in a new window, frame, pane, or otherpresentation contextreplace - load the resource in the same window, frame, pane, orother presentation contextembed - load ending resource in place of the presentation of thestarting resourceother - behavior is unconstrained; examine other markup in thelink for hintsnone - behavior is unconstrained
This abstract element acts as the head of the substitution group for temporal complexes.Temporal complex is an aggregation of temporal primitives as its components,represents a temporal geometric complex and a temporal topology complex.N.B. Temporal geometric complex is not defined in this schema.
Database handle for the object. It is of XML type ID, so is constrained to be unique in the XML document within which it occurs. An external identifier for the object in the form of a URI may be constructed using standard XML and XPointer methods. This is done by concatenating the URI for the document, a fragment separator, and the value of the id attribute.
Source
<element name="_TimeComplex" type="gml:AbstractTimeComplexType" abstract="true" substitutionGroup="gml:_TimeObject"><annotation><documentation xml:lang="en">This abstract element acts as the head of the substitution group for temporal complexes. Temporal complex is an aggregation of temporal primitives as its components, represents a temporal geometric complex and a temporal topology complex. N.B. Temporal geometric complex is not defined in this schema.</documentation></annotation></element>
Database handle for the object. It is of XML type ID, so is constrained to be unique in the XML document within which it occurs. An external identifier for the object in the form of a URI may be constructed using standard XML and XPointer methods. This is done by concatenating the URI for the document, a fragment separator, and the value of the id attribute.
Source
<element name="_TimeGeometricPrimitive" type="gml:AbstractTimeGeometricPrimitiveType" abstract="true" substitutionGroup="gml:_TimePrimitive"><annotation><documentation xml:lang="en">This abstract element acts as the head of the substitution group for temporal geometric primitives.</documentation></annotation></element>
Database handle for the object. It is of XML type ID, so is constrained to be unique in the XML document within which it occurs. An external identifier for the object in the form of a URI may be constructed using standard XML and XPointer methods. This is done by concatenating the URI for the document, a fragment separator, and the value of the id attribute.
Database handle for the object. It is of XML type ID, so is constrained to be unique in the XML document within which it occurs. An external identifier for the object in the form of a URI may be constructed using standard XML and XPointer methods. This is done by concatenating the URI for the document, a fragment separator, and the value of the id attribute.
Reference to an XML Schema fragment that specifies the content model of the propertys value. This is in conformance with the XML Schema Section 4.14 Referencing Schemas from Elsewhere.
The 'actuate' attribute is used to communicate the desired timingof 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 loadingthe starting resourceonRequest - traverse from the starting resource to the endingresource only on a post-loading event triggered forthis purposeother - behavior is unconstrained; examine other markup in linkfor hintsnone - behavior is unconstrained
The 'show' attribute is used to communicate the desired presentationof the ending resource on traversal from the starting resource; it'svalue should be treated as follows:new - load ending resource in a new window, frame, pane, or otherpresentation contextreplace - load the resource in the same window, frame, pane, orother presentation contextembed - load ending resource in place of the presentation of thestarting resourceother - behavior is unconstrained; examine other markup in thelink for hintsnone - behavior is unconstrained
Reference to an XML Schema fragment that specifies the content model of the propertys value. This is in conformance with the XML Schema Section 4.14 Referencing Schemas from Elsewhere.
The 'actuate' attribute is used to communicate the desired timingof 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 loadingthe starting resourceonRequest - traverse from the starting resource to the endingresource only on a post-loading event triggered forthis purposeother - behavior is unconstrained; examine other markup in linkfor hintsnone - behavior is unconstrained
The 'show' attribute is used to communicate the desired presentationof the ending resource on traversal from the starting resource; it'svalue should be treated as follows:new - load ending resource in a new window, frame, pane, or otherpresentation contextreplace - load the resource in the same window, frame, pane, orother presentation contextembed - load ending resource in place of the presentation of thestarting resourceother - behavior is unconstrained; examine other markup in thelink for hintsnone - behavior is unconstrained
This element is an instance of the primitive xsd:duration simple type toenable use of the ISO 8601 syntax for temporal length (e.g. P5DT4H30M).It is a valid subtype of TimeDurationType according to section 3.14.6,rule 2.2.4 in XML Schema, Part 1.
<element name="duration" type="duration"><annotation><documentation xml:lang="en">This element is an instance of the primitive xsd:duration simple type to enable use of the ISO 8601 syntax for temporal length (e.g. P5DT4H30M). It is a valid subtype of TimeDurationType according to section 3.14.6, rule 2.2.4 in XML Schema, Part 1.</documentation></annotation></element>
<element name="timeInterval" type="gml:TimeIntervalLengthType"><annotation><documentation>This element is a valid subtype of TimeDurationType according to section 3.14.6, rule 2.2.4 in XML Schema, Part 1.</documentation></annotation></element>
Reference to an XML Schema fragment that specifies the content model of the propertys value. This is in conformance with the XML Schema Section 4.14 Referencing Schemas from Elsewhere.
The 'actuate' attribute is used to communicate the desired timingof 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 loadingthe starting resourceonRequest - traverse from the starting resource to the endingresource only on a post-loading event triggered forthis purposeother - behavior is unconstrained; examine other markup in linkfor hintsnone - behavior is unconstrained
The 'show' attribute is used to communicate the desired presentationof the ending resource on traversal from the starting resource; it'svalue should be treated as follows:new - load ending resource in a new window, frame, pane, or otherpresentation contextreplace - load the resource in the same window, frame, pane, orother presentation contextembed - load ending resource in place of the presentation of thestarting resourceother - behavior is unconstrained; examine other markup in thelink for hintsnone - behavior is unconstrained
Direct representation of a temporal position.Indeterminate time values are also allowed, as described in ISO 19108. The indeterminatePositionattribute can be used alone or it can qualify a specific value for temporal position (e.g. before2002-12, after 1019624400).For time values that identify position within a calendar, the calendarEraName attribute providesthe name of the calendar era to which the date is referenced (e.g. the Meiji era of the Japanese calendar).
<complexType name="TimePositionType" final="#all"><annotation><documentation xml:lang="en">Direct representation of a temporal position. Indeterminate time values are also allowed, as described in ISO 19108. The indeterminatePosition attribute can be used alone or it can qualify a specific value for temporal position (e.g. before 2002-12, after 1019624400). For time values that identify position within a calendar, the calendarEraName attribute provides the name of the calendar era to which the date is referenced (e.g. the Meiji era of the Japanese calendar).</documentation></annotation><simpleContent><extension base="gml:TimePositionUnion"><attribute name="frame" type="anyURI" use="optional" default="#ISO-8601"/><attribute name="calendarEraName" type="string" use="optional"/><attribute name="indeterminatePosition" type="gml:TimeIndeterminateValueType" use="optional"/></extension></simpleContent></complexType>
The ISO 19108:2002 hierarchy of subtypes for temporal position are collapsedby defining a union of XML Schema simple types for indicating temporal position relativeto a specific reference system.Dates and dateTime may be indicated with varying degrees of precision.dateTime by itself does not allow right-truncation, except for fractions of seconds.When used with non-Gregorian calendars based on years, months, days,the same lexical representation should still be used, with leading zeros added if theyear value would otherwise have fewer than four digits.An ordinal position may be referenced via URI identifying the definition of an ordinal era.A time coordinate value is indicated as a decimal (e.g. UNIX time, GPS calendar).
Diagram
Type
union of(gml:CalDate, time, dateTime, anyURI, decimal)
<simpleType name="TimePositionUnion"><annotation><documentation xml:lang="en">The ISO 19108:2002 hierarchy of subtypes for temporal position are collapsed by defining a union of XML Schema simple types for indicating temporal position relative to a specific reference system. Dates and dateTime may be indicated with varying degrees of precision. dateTime by itself does not allow right-truncation, except for fractions of seconds. When used with non-Gregorian calendars based on years, months, days, the same lexical representation should still be used, with leading zeros added if the year value would otherwise have fewer than four digits. An ordinal position may be referenced via URI identifying the definition of an ordinal era. A time coordinate value is indicated as a decimal (e.g. UNIX time, GPS calendar).</documentation></annotation><union memberTypes="gml:CalDate time dateTime anyURI decimal"/></simpleType>
Database handle for the object. It is of XML type ID, so is constrained to be unique in the XML document within which it occurs. An external identifier for the object in the form of a URI may be constructed using standard XML and XPointer methods. This is done by concatenating the URI for the document, a fragment separator, and the value of the id attribute.
Source
<complexType name="AbstractTimeObjectType" abstract="true"><annotation><documentation xml:lang="en">The abstract supertype for temporal objects.</documentation></annotation><complexContent><extension base="gml:AbstractGMLType"/></complexContent></complexType>
Database handle for the object. It is of XML type ID, so is constrained to be unique in the XML document within which it occurs. An external identifier for the object in the form of a URI may be constructed using standard XML and XPointer methods. This is done by concatenating the URI for the document, a fragment separator, and the value of the id attribute.
Reference to an XML Schema fragment that specifies the content model of the propertys value. This is in conformance with the XML Schema Section 4.14 Referencing Schemas from Elsewhere.
The 'actuate' attribute is used to communicate the desired timingof 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 loadingthe starting resourceonRequest - traverse from the starting resource to the endingresource only on a post-loading event triggered forthis purposeother - behavior is unconstrained; examine other markup in linkfor hintsnone - behavior is unconstrained
The 'show' attribute is used to communicate the desired presentationof the ending resource on traversal from the starting resource; it'svalue should be treated as follows:new - load ending resource in a new window, frame, pane, or otherpresentation contextreplace - load the resource in the same window, frame, pane, orother presentation contextembed - load ending resource in place of the presentation of thestarting resourceother - behavior is unconstrained; examine other markup in thelink for hintsnone - behavior is unconstrained
Reference to an XML Schema fragment that specifies the content model of the propertys value. This is in conformance with the XML Schema Section 4.14 Referencing Schemas from Elsewhere.
The 'actuate' attribute is used to communicate the desired timingof 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 loadingthe starting resourceonRequest - traverse from the starting resource to the endingresource only on a post-loading event triggered forthis purposeother - behavior is unconstrained; examine other markup in linkfor hintsnone - behavior is unconstrained
The 'show' attribute is used to communicate the desired presentationof the ending resource on traversal from the starting resource; it'svalue should be treated as follows:new - load ending resource in a new window, frame, pane, or otherpresentation contextreplace - load the resource in the same window, frame, pane, orother presentation contextembed - load ending resource in place of the presentation of thestarting resourceother - behavior is unconstrained; examine other markup in thelink for hintsnone - behavior is unconstrained
Database handle for the object. It is of XML type ID, so is constrained to be unique in the XML document within which it occurs. An external identifier for the object in the form of a URI may be constructed using standard XML and XPointer methods. This is done by concatenating the URI for the document, a fragment separator, and the value of the id attribute.
Source
<complexType name="AbstractTimeComplexType" abstract="true"><annotation><documentation xml:lang="en">The abstract supertype for temporal complexes.</documentation></annotation><complexContent><extension base="gml:AbstractTimeObjectType"/></complexContent></complexType>
Complex Type gml:AbstractTimeGeometricPrimitiveType
Namespace
http://www.opengis.net/gml
Annotations
The abstract supertype for temporal geometric primitives.A temporal geometry must be associated with a temporal reference system via URI.The Gregorian calendar with UTC is the default reference system, following ISO8601. Other reference systems in common use include the GPS calendar and theJulian calendar.
Database handle for the object. It is of XML type ID, so is constrained to be unique in the XML document within which it occurs. An external identifier for the object in the form of a URI may be constructed using standard XML and XPointer methods. This is done by concatenating the URI for the document, a fragment separator, and the value of the id attribute.
Source
<complexType name="AbstractTimeGeometricPrimitiveType" abstract="true"><annotation><documentation xml:lang="en">The abstract supertype for temporal geometric primitives. A temporal geometry must be associated with a temporal reference system via URI. The Gregorian calendar with UTC is the default reference system, following ISO 8601. Other reference systems in common use include the GPS calendar and the Julian calendar.</documentation></annotation><complexContent><extension base="gml:AbstractTimePrimitiveType"><attribute name="frame" type="anyURI" use="optional" default="#ISO-8601"/></extension></complexContent></complexType>
Reference to an XML Schema fragment that specifies the content model of the propertys value. This is in conformance with the XML Schema Section 4.14 Referencing Schemas from Elsewhere.
The 'actuate' attribute is used to communicate the desired timingof 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 loadingthe starting resourceonRequest - traverse from the starting resource to the endingresource only on a post-loading event triggered forthis purposeother - behavior is unconstrained; examine other markup in linkfor hintsnone - behavior is unconstrained
The 'show' attribute is used to communicate the desired presentationof the ending resource on traversal from the starting resource; it'svalue should be treated as follows:new - load ending resource in a new window, frame, pane, or otherpresentation contextreplace - load the resource in the same window, frame, pane, orother presentation contextembed - load ending resource in place of the presentation of thestarting resourceother - behavior is unconstrained; examine other markup in thelink for hintsnone - behavior is unconstrained
Database handle for the object. It is of XML type ID, so is constrained to be unique in the XML document within which it occurs. An external identifier for the object in the form of a URI may be constructed using standard XML and XPointer methods. This is done by concatenating the URI for the document, a fragment separator, and the value of the id attribute.
Reference to an XML Schema fragment that specifies the content model of the propertys value. This is in conformance with the XML Schema Section 4.14 Referencing Schemas from Elsewhere.
The 'actuate' attribute is used to communicate the desired timingof 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 loadingthe starting resourceonRequest - traverse from the starting resource to the endingresource only on a post-loading event triggered forthis purposeother - behavior is unconstrained; examine other markup in linkfor hintsnone - behavior is unconstrained
The 'show' attribute is used to communicate the desired presentationof the ending resource on traversal from the starting resource; it'svalue should be treated as follows:new - load ending resource in a new window, frame, pane, or otherpresentation contextreplace - load the resource in the same window, frame, pane, orother presentation contextembed - load ending resource in place of the presentation of thestarting resourceother - behavior is unconstrained; examine other markup in thelink for hintsnone - behavior is unconstrained
Database handle for the object. It is of XML type ID, so is constrained to be unique in the XML document within which it occurs. An external identifier for the object in the form of a URI may be constructed using standard XML and XPointer methods. This is done by concatenating the URI for the document, a fragment separator, and the value of the id attribute.
This type extends the built-in xsd:decimal simple type to allow floating-pointvalues for temporal length. According to the ISO 11404 model you have to usepositiveInteger together with appropriate values for radix and factor. Theresolution of the time interval is to one radix ^(-factor) of the specifiedtime unit (e.g. unit="second", radix="10", factor="3" specifies a resolutionof milliseconds). It is a subtype of TimeDurationType.
<complexType name="TimeIntervalLengthType" final="#all"><annotation><documentation xml:lang="en">This type extends the built-in xsd:decimal simple type to allow floating-point values for temporal length. According to the ISO 11404 model you have to use positiveInteger together with appropriate values for radix and factor. The resolution of the time interval is to one radix ^(-factor) of the specified time unit (e.g. unit="second", radix="10", factor="3" specifies a resolution of milliseconds). It is a subtype of TimeDurationType.</documentation></annotation><simpleContent><extension base="decimal"><attribute name="unit" type="gml:TimeUnitType" use="required"/><attribute name="radix" type="positiveInteger" use="optional"/><attribute name="factor" type="integer" use="optional"/></extension></simpleContent></complexType>
<simpleType name="TimeUnitType"><annotation><documentation xml:lang="en">Standard units for measuring time intervals (see ISO 31-1).</documentation></annotation><union><simpleType><restriction base="string"><enumeration value="year"/><enumeration value="day"/><enumeration value="hour"/><enumeration value="minute"/><enumeration value="second"/></restriction></simpleType><simpleType><restriction base="string"><pattern value="other:\w{2,}"/></restriction></simpleType></union></simpleType>
Reference to an XML Schema fragment that specifies the content model of the propertys value. This is in conformance with the XML Schema Section 4.14 Referencing Schemas from Elsewhere.
The 'actuate' attribute is used to communicate the desired timingof 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 loadingthe starting resourceonRequest - traverse from the starting resource to the endingresource only on a post-loading event triggered forthis purposeother - behavior is unconstrained; examine other markup in linkfor hintsnone - behavior is unconstrained
The 'show' attribute is used to communicate the desired presentationof the ending resource on traversal from the starting resource; it'svalue should be treated as follows:new - load ending resource in a new window, frame, pane, or otherpresentation contextreplace - load the resource in the same window, frame, pane, orother presentation contextembed - load ending resource in place of the presentation of thestarting resourceother - behavior is unconstrained; examine other markup in thelink for hintsnone - behavior is unconstrained
Calendar dates may be indicated with varying degrees of precision,using year, year-month, date.When used with non-Gregorian calendars based on years, months, days,the same lexical representation should still be used, with leading zeros added if theyear value would otherwise have fewer than four digits.time is used for a position that recurs daily (see clause 5.4.4.2 of ISO 19108:2002).
Diagram
Type
union of(date, gYearMonth, gYear)
Source
<simpleType name="CalDate"><annotation><documentation xml:lang="en">Calendar dates may be indicated with varying degrees of precision, using year, year-month, date. When used with non-Gregorian calendars based on years, months, days, the same lexical representation should still be used, with leading zeros added if the year value would otherwise have fewer than four digits. time is used for a position that recurs daily (see clause 5.4.4.2 of ISO 19108:2002).</documentation></annotation><union memberTypes="date gYearMonth gYear"/></simpleType>
<group name="timeLength"><annotation><documentation>This model group is provided as an alternative to the abstract susbstitutionGroup head _timeLength. ISO 19136 comment 411</documentation></annotation><choice><element ref="gml:duration"/><element ref="gml:timeInterval"/></choice></group>
