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Attributes
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Instances
Properties
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Used by
Element gml:AbstractGeneralTransformation
Namespace http://www.opengis.net/gml/3.2
Annotations
gml:AbstractGeneralTransformation is an abstract operation on coordinates that usually includes a change of Datum. The parameters of a coordinate transformation are empirically derived from data containing the coordinates of a series of points in both coordinate reference systems. This computational process is usually "over-determined", allowing derivation of error (or accuracy) estimates for the transformation. Also, the stochastic nature of the parameters may result in multiple (different) versions of the same coordinate transformation. The operationVersion, sourceCRS, and targetCRS proeprty elements are mandatory in a coordinate transformation.
This abstract complex type is expected to be extended for well-known operation methods with many Transformation instances, in Application Schemas that define operation-method-specialized value element names and contents. This transformation uses an operation method with associated parameter values. However, operation methods and parameter values are directly associated with concrete subtypes, not with this abstract type. All concrete types derived from this type shall extend this type to include a "usesMethod" element that references one "OperationMethod" element. Similarly, all concrete types derived from this type shall extend this type to include one or more elements each named "uses...Value" that each use the type of an element substitutable for the "AbstractGeneralParameterValue" element.
Diagram
Diagram index7.tmp#id74 index8.tmp#id68 index9.tmp#id89 index10.tmp#id91 index11.tmp#id95 index12.tmp#id100 index13.tmp#id67 index14.tmp#id66 index7.tmp#id74 index8.tmp#id68 index9.tmp#id89 index10.tmp#id91 index11.tmp#id95 index12.tmp#id100 index119.tmp#id766 index120.tmp#id767 index121.tmp#id765 index122.tmp#id1043 index136.tmp#id1044 index137.tmp#id1116 index240.tmp#id1127 index241.tmp#id1128 index242.tmp#id1237 index243.tmp#id1239 index244.tmp#id1126 index7.tmp#id74 index8.tmp#id68 index9.tmp#id89 index10.tmp#id91 index11.tmp#id95 index12.tmp#id100 index120.tmp#id767 index136.tmp#id1044 index137.tmp#id1116 index240.tmp#id1127 index241.tmp#id1128 index242.tmp#id1237 index243.tmp#id1239 index775.tmp#id1958 index776.tmp#id323
Type gml:AbstractGeneralTransformationType
Type hierarchy
Properties
content: complex
abstract: true
Used by
Model gml:metaDataProperty* , gml:description{0,1} , gml:descriptionReference{0,1} , gml:identifier , gml:name* , gml:remarks{0,1} , gml:domainOfValidity{0,1} , gml:scope+ , gml:operationVersion , gml:coordinateOperationAccuracy* , gml:sourceCRS , gml:targetCRS
Children gml:coordinateOperationAccuracy, gml:description, gml:descriptionReference, gml:domainOfValidity, gml:identifier, gml:metaDataProperty, gml:name, gml:operationVersion, gml:remarks, gml:scope, gml:sourceCRS, gml:targetCRS
Instance
<gml:AbstractGeneralTransformation gml:id="">
  <gml:metaDataProperty about="" xlink:actuate="" xlink:arcrole="" xlink:href="" nilReason="" gml:remoteSchema="" xlink:role="" xlink:show="" xlink:title="" xlink:type="simple">{0,unbounded}</gml:metaDataProperty>
  <gml:description xlink:actuate="" xlink:arcrole="" xlink:href="" nilReason="" gml:remoteSchema="" xlink:role="" xlink:show="" xlink:title="" xlink:type="simple">{0,1}</gml:description>
  <gml:descriptionReference xlink:actuate="" xlink:arcrole="" xlink:href="" nilReason="" owns="false" gml:remoteSchema="" xlink:role="" xlink:show="" xlink:title="" xlink:type="simple">{0,1}</gml:descriptionReference>
  <gml:identifier codeSpace="">{1,1}</gml:identifier>
  <gml:name codeSpace="">{0,unbounded}</gml:name>
  <gml:remarks>{0,1}</gml:remarks>
  <gml:domainOfValidity xlink:actuate="" xlink:arcrole="" xlink:href="" nilReason="" gml:remoteSchema="" xlink:role="" xlink:show="" xlink:title="" xlink:type="simple">{0,1}</gml:domainOfValidity>
  <gml:scope>{1,unbounded}</gml:scope>
  <gml:operationVersion>{1,1}</gml:operationVersion>
  <gml:coordinateOperationAccuracy xlink:actuate="" xlink:arcrole="" xlink:href="" nilReason="" gml:remoteSchema="" xlink:role="" xlink:show="" xlink:title="" xlink:type="simple">{0,unbounded}</gml:coordinateOperationAccuracy>
  <gml:sourceCRS xlink:actuate="" xlink:arcrole="" xlink:href="" nilReason="" gml:remoteSchema="" xlink:role="" xlink:show="" xlink:title="" xlink:type="simple">{1,1}</gml:sourceCRS>
  <gml:targetCRS xlink:actuate="" xlink:arcrole="" xlink:href="" nilReason="" gml:remoteSchema="" xlink:role="" xlink:show="" xlink:title="" xlink:type="simple">{1,1}</gml:targetCRS>
</gml:AbstractGeneralTransformation>
Attributes
QName Type Fixed Default Use Annotation
gml:id ID required
The attribute gml:id supports provision of a handle for the XML element representing a GML Object. Its use is mandatory for all GML objects. It is of XML type ID, so is constrained to be unique in the XML document within which it occurs.
Source
<element name="AbstractGeneralTransformation" type="gml:AbstractGeneralTransformationType" abstract="true" substitutionGroup="gml:AbstractOperation">
  <annotation>
    <documentation>gml:AbstractGeneralTransformation is an abstract operation on coordinates that usually includes a change of Datum. The parameters of a coordinate transformation are empirically derived from data containing the coordinates of a series of points in both coordinate reference systems. This computational process is usually "over-determined", allowing derivation of error (or accuracy) estimates for the transformation. Also, the stochastic nature of the parameters may result in multiple (different) versions of the same coordinate transformation. The operationVersion, sourceCRS, and targetCRS proeprty elements are mandatory in a coordinate transformation. This abstract complex type is expected to be extended for well-known operation methods with many Transformation instances, in Application Schemas that define operation-method-specialized value element names and contents. This transformation uses an operation method with associated parameter values. However, operation methods and parameter values are directly associated with concrete subtypes, not with this abstract type. All concrete types derived from this type shall extend this type to include a "usesMethod" element that references one "OperationMethod" element. Similarly, all concrete types derived from this type shall extend this type to include one or more elements each named "uses...Value" that each use the type of an element substitutable for the "AbstractGeneralParameterValue" element.</documentation>
  </annotation>
</element>
Schema location http://schemas.opengis.net/gml/3.2.1/coordinateOperations.xsd