<complexType name="TransformationType">
<annotation>
<documentation>A concrete general-purpose 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. </documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractGeneralTransformationType">
<sequence>
<element name="usesMethod" type="gml:OperationMethodRefType">
<annotation>
<documentation>Association to the operation method used by this transformation operation. </documentation>
</annotation>
</element>
<element name="usesValue" type="gml:ParameterValueType" minOccurs="0" maxOccurs="unbounded">
<annotation>
<documentation>Unordered list of composition associations to the set of parameter values used by this transformation operation. </documentation>
</annotation>
</element>
</sequence>
</extension>
</complexContent>
</complexType>
|