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Annotations
Attributes
Diagrams
Properties
Source
Used by
Element gml:AffinePlacementType / gml:location
Namespace http://www.opengis.net/gml
Annotations
The location property gives 
 the target of the parameter space origin. This is the vector  
(x0, y0, z0) in the formulae above.
Diagram
Diagram index118.tmp#id57 index8.tmp#id58 index203.tmp#id56
Type gml:DirectPositionType
Type hierarchy
Properties
content: complex
Attributes
QName Type Fixed Default Use Annotation
axisLabels gml:NCNameList optional
Ordered list of labels for all the axes of this CRS. The gml:axisAbbrev value should be used for these axis 
labels, after spaces and forbiddden characters are removed. When the srsName attribute is included, this attribute is optional. 
When the srsName attribute is omitted, this attribute shall also be omitted.
srsDimension positiveInteger optional
The "srsDimension" is the length of coordinate sequence (the number of entries in the list). This dimension is 
specified by the coordinate reference system. When the srsName attribute is omitted, this attribute shall be omitted.
srsName anyURI optional
In general this reference points to a CRS instance of gml:CoordinateReferenceSystemType 
(see coordinateReferenceSystems.xsd). For well known references it is not required that the CRS description exists at the 
location the URI points to. If no srsName attribute is given, the CRS must be specified as part of the larger context this 
geometry element is part of, e.g. a geometric element like point, curve, etc. It is expected that this attribute will be specified 
at the direct position level only in rare cases.
uomLabels gml:NCNameList optional
Ordered list of unit of measure (uom) labels for all the axes of this CRS. The value of the string in the 
gml:catalogSymbol should be used for this uom labels, after spaces and forbiddden characters are removed. When the 
axisLabels attribute is included, this attribute shall also be included. When the axisLabels attribute is omitted, this attribute 
shall also be omitted.
Source
<element name="location" type="gml:DirectPositionType">
  <annotation>
    <documentation>The location property gives the target of the parameter space origin. This is the vector (x0, y0, z0) in the formulae above.</documentation>
  </annotation>
</element>
Schema location http://schemas.opengis.net/gml/3.1.1/base/geometryPrimitives.xsd
Element gml:AffinePlacementType / gml:refDirection
Namespace http://www.opengis.net/gml
Annotations
The attribute refDirection gives the    
target directions for the co-ordinate basis vectors of the  
parameter space. These are the columns of the matrix in the 
formulae given above. The number of directions given shall be 
inDimension. The dimension of the directions shall be 
outDimension.
Diagram
Diagram index118.tmp#id57 index8.tmp#id58 index119.tmp#id198
Type gml:VectorType
Type hierarchy
Properties
content: complex
maxOccurs: unbounded
Attributes
QName Type Fixed Default Use Annotation
axisLabels gml:NCNameList optional
Ordered list of labels for all the axes of this CRS. The gml:axisAbbrev value should be used for these axis 
labels, after spaces and forbiddden characters are removed. When the srsName attribute is included, this attribute is optional. 
When the srsName attribute is omitted, this attribute shall also be omitted.
srsDimension positiveInteger optional
The "srsDimension" is the length of coordinate sequence (the number of entries in the list). This dimension is 
specified by the coordinate reference system. When the srsName attribute is omitted, this attribute shall be omitted.
srsName anyURI optional
In general this reference points to a CRS instance of gml:CoordinateReferenceSystemType 
(see coordinateReferenceSystems.xsd). For well known references it is not required that the CRS description exists at the 
location the URI points to. If no srsName attribute is given, the CRS must be specified as part of the larger context this 
geometry element is part of, e.g. a geometric element like point, curve, etc. It is expected that this attribute will be specified 
at the direct position level only in rare cases.
uomLabels gml:NCNameList optional
Ordered list of unit of measure (uom) labels for all the axes of this CRS. The value of the string in the 
gml:catalogSymbol should be used for this uom labels, after spaces and forbiddden characters are removed. When the 
axisLabels attribute is included, this attribute shall also be included. When the axisLabels attribute is omitted, this attribute 
shall also be omitted.
Source
<element name="refDirection" type="gml:VectorType" maxOccurs="unbounded">
  <annotation>
    <documentation>The attribute refDirection gives the target directions for the co-ordinate basis vectors of the parameter space. These are the columns of the matrix in the formulae given above. The number of directions given shall be inDimension. The dimension of the directions shall be outDimension.</documentation>
  </annotation>
</element>
Schema location http://schemas.opengis.net/gml/3.1.1/base/geometryPrimitives.xsd
Element gml:AffinePlacementType / gml:inDimension
Namespace http://www.opengis.net/gml
Annotations
Dimension of the constructive parameter 
space.
Diagram
Diagram
Type positiveInteger
Properties
content: simple
Source
<element name="inDimension" type="positiveInteger">
  <annotation>
    <documentation>Dimension of the constructive parameter space.</documentation>
  </annotation>
</element>
Schema location http://schemas.opengis.net/gml/3.1.1/base/geometryPrimitives.xsd
Element gml:AffinePlacementType / gml:outDimension
Namespace http://www.opengis.net/gml
Annotations
Dimension of the co-ordinate space.
Diagram
Diagram
Type positiveInteger
Properties
content: simple
Source
<element name="outDimension" type="positiveInteger">
  <annotation>
    <documentation>Dimension of the co-ordinate space.</documentation>
  </annotation>
</element>
Schema location http://schemas.opengis.net/gml/3.1.1/base/geometryPrimitives.xsd
Complex Type gml:AffinePlacementType
Namespace http://www.opengis.net/gml
Annotations
A placement takes a standard geometric
   construction and places it in geographic space. It defines a
   transformation from a constructive parameter space to the 
   co-ordinate space of the co-ordinate reference system being used.  
   Parameter spaces in formulae in this International Standard are 
   given as (u, v) in 2D and(u, v, w) in 3D. Co-ordinate reference 
   systems positions are given in formulae, in this International 
   Standard, by either (x, y) in 2D, or (x, y, z) in 3D.

   Affine placements are defined by linear transformations from 
   parameter space to the target co-ordiante space. 2-dimensional 
   Cartesian parameter space,(u,v) transforms into 3-dimensional co-
   ordinate reference systems,(x,y,z) by using an affine 
   transformation,(u,v)->(x,y,z) which is defined :

	x	ux vx  	x0
			 u	  
	y =	uy vy   + y0
			 v		
	x	uz vz	z0
	
   Then, given this equation, the location element of the 
   AffinePlacement is the direct position (x0, y0, z0), which is the
   target position of the origin in (u, v). The two reference
   directions (ux, uy, uz) and (vx, vy, vz) are the target     
   directions of the unit vectors at the origin in (u, v).
Diagram
Diagram index58.tmp#id611 index58.tmp#id612 index58.tmp#id613 index58.tmp#id614
Used by
Model gml:location , gml:refDirection+ , gml:inDimension , gml:outDimension
Children gml:inDimension, gml:location, gml:outDimension, gml:refDirection
Source
<complexType name="AffinePlacementType">
  <annotation>
    <documentation>A placement takes a standard geometric construction and places it in geographic space. It defines a transformation from a constructive parameter space to the co-ordinate space of the co-ordinate reference system being used. Parameter spaces in formulae in this International Standard are given as (u, v) in 2D and(u, v, w) in 3D. Co-ordinate reference systems positions are given in formulae, in this International Standard, by either (x, y) in 2D, or (x, y, z) in 3D. Affine placements are defined by linear transformations from parameter space to the target co-ordiante space. 2-dimensional Cartesian parameter space,(u,v) transforms into 3-dimensional co- ordinate reference systems,(x,y,z) by using an affine transformation,(u,v)->(x,y,z) which is defined : x ux vx x0 u y = uy vy + y0 v x uz vz z0 Then, given this equation, the location element of the AffinePlacement is the direct position (x0, y0, z0), which is the target position of the origin in (u, v). The two reference directions (ux, uy, uz) and (vx, vy, vz) are the target directions of the unit vectors at the origin in (u, v).</documentation>
  </annotation>
  <sequence>
    <element name="location" type="gml:DirectPositionType">
      <annotation>
        <documentation>The location property gives the target of the parameter space origin. This is the vector (x0, y0, z0) in the formulae above.</documentation>
      </annotation>
    </element>
    <element name="refDirection" type="gml:VectorType" maxOccurs="unbounded">
      <annotation>
        <documentation>The attribute refDirection gives the target directions for the co-ordinate basis vectors of the parameter space. These are the columns of the matrix in the formulae given above. The number of directions given shall be inDimension. The dimension of the directions shall be outDimension.</documentation>
      </annotation>
    </element>
    <element name="inDimension" type="positiveInteger">
      <annotation>
        <documentation>Dimension of the constructive parameter space.</documentation>
      </annotation>
    </element>
    <element name="outDimension" type="positiveInteger">
      <annotation>
        <documentation>Dimension of the co-ordinate space.</documentation>
      </annotation>
    </element>
  </sequence>
</complexType>
Schema location http://schemas.opengis.net/gml/3.1.1/base/geometryPrimitives.xsd