complexType TinType
diagram index_p1555.png
namespace http://www.opengis.net/gml
type extension of gml:TriangulatedSurfaceType
properties
base gml:TriangulatedSurfaceType
children gml:metaDataProperty gml:description gml:name gml:trianglePatches gml:stopLines gml:breakLines gml:maxLength gml:controlPoint
used by
element Tin
attributes
Name  Type  Use  Default  Fixed  annotation
idoptional      
documentation
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.
gidxs:stringoptional      
documentation
This attribute is included for backward compatibility with GML 2 and is deprecated with GML 3.
This identifer is superceded by "gml:id" inherited from AbstractGMLType. The attribute "gid" should not be used
anymore and may be deleted in future versions of GML without further notice.
srsNamexs:anyURIoptional      
documentation
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.
srsDimensionxs:positiveIntegeroptional      
documentation
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.
axisLabelsgml:NCNameListoptional      
documentation
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.
uomLabelsgml:NCNameListoptional      
documentation
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.
annotation
documentation
A tin is a triangulated surface that uses
   the Delauny algorithm or a similar algorithm complemented with
   consideration of breaklines, stoplines, and maximum length of
   triangle sides. These networks satisfy the Delauny's criterion
   away from the modifications: Fore each triangle in the
   network, the circle passing through its vertices does not
   contain, in its interior, the vertex of any other triangle.
source <xs:complexType name="TinType">
 
<xs:annotation>
   
<xs:documentation>A tin is a triangulated surface that uses
   the Delauny algorithm or a similar algorithm complemented with
   consideration of breaklines, stoplines, and maximum length of
   triangle sides. These networks satisfy the Delauny's criterion
   away from the modifications: Fore each triangle in the
   network, the circle passing through its vertices does not
   contain, in its interior, the vertex of any other triangle.
</xs:documentation>
 
</xs:annotation>
 
<xs:complexContent>
   
<xs:extension base="gml:TriangulatedSurfaceType">
     
<xs:sequence>
       
<xs:element name="stopLines" type="gml:LineStringSegmentArrayPropertyType" minOccurs="0" maxOccurs="unbounded">
         
<xs:annotation>
           
<xs:documentation>Stoplines are lines where the local
       continuity or regularity of the surface is questionable.
       In the area of these pathologies, triangles intersecting
       a stopline shall be removed from the tin surface, leaving
       holes in the surface. If coincidence occurs on surface
       boundary triangles, the result shall be a change of the
       surface boundary. Stoplines contains all these
       pathological segments as a set of line strings.
</xs:documentation>
         
</xs:annotation>
       
</xs:element>
       
<xs:element name="breakLines" type="gml:LineStringSegmentArrayPropertyType" minOccurs="0" maxOccurs="unbounded">
         
<xs:annotation>
           
<xs:documentation>Breaklines are lines of a critical
       nature to the shape of the surface, representing local
       ridges, or depressions (such as drainage lines) in the
       surface. As such their constituent segments must be
       included in the tin eve if doing so
       violates the Delauny criterion. Break lines contains these
       critical segments as a set of line strings.
</xs:documentation>
         
</xs:annotation>
       
</xs:element>
       
<xs:element name="maxLength" type="gml:LengthType">
         
<xs:annotation>
           
<xs:documentation>Areas of the surface where data is not
       sufficiently dense to assure reasonable calculation shall be   
       removed by adding a retention criterion for triangles based
       on the length of their sides. For many triangle sides 
       exceeding maximum length, the adjacent triangles to that
       triangle side shall be removed from the surface.
</xs:documentation>
         
</xs:annotation>
       
</xs:element>
       
<xs:element name="controlPoint">
         
<xs:annotation>
           
<xs:documentation>The corners of the triangles in the TIN
  are often referred to as pots. ControlPoint shall contain a
  set of the GM_Position used as posts for this TIN. Since each 
  TIN contains triangles, there must be at least 3 posts. The
       order in which these points are given does not affect the
       surface that is represented. Application schemas may add
       information based on ordering of control points to facilitate
       the reconstruction of the TIN from the control points.
</xs:documentation>
         
</xs:annotation>
         
<xs:complexType>
           
<xs:choice>
             
<xs:element ref="gml:posList"/>
             
<xs:group ref="gml:geometricPositionGroup" minOccurs="3" maxOccurs="unbounded"/>
           
</xs:choice>
         
</xs:complexType>
       
</xs:element>
     
</xs:sequence>
   
</xs:extension>
 
</xs:complexContent>
</xs:complexType>

element TinType/stopLines
diagram index_p1556.png
namespace http://www.opengis.net/gml
type gml:LineStringSegmentArrayPropertyType
properties
isRef 0
minOcc 0
maxOcc unbounded
content complex
children gml:LineStringSegment
annotation
documentation
Stoplines are lines where the local
       continuity or regularity of the surface is questionable.
       In the area of these pathologies, triangles intersecting
       a stopline shall be removed from the tin surface, leaving
       holes in the surface. If coincidence occurs on surface
       boundary triangles, the result shall be a change of the
       surface boundary. Stoplines contains all these
       pathological segments as a set of line strings.
source <xs:element name="stopLines" type="gml:LineStringSegmentArrayPropertyType" minOccurs="0" maxOccurs="unbounded">
 
<xs:annotation>
   
<xs:documentation>Stoplines are lines where the local
       continuity or regularity of the surface is questionable.
       In the area of these pathologies, triangles intersecting
       a stopline shall be removed from the tin surface, leaving
       holes in the surface. If coincidence occurs on surface
       boundary triangles, the result shall be a change of the
       surface boundary. Stoplines contains all these
       pathological segments as a set of line strings.
</xs:documentation>
 
</xs:annotation>
</xs:element>

element TinType/breakLines
diagram index_p1557.png
namespace http://www.opengis.net/gml
type gml:LineStringSegmentArrayPropertyType
properties
isRef 0
minOcc 0
maxOcc unbounded
content complex
children gml:LineStringSegment
annotation
documentation
Breaklines are lines of a critical
       nature to the shape of the surface, representing local
       ridges, or depressions (such as drainage lines) in the
       surface. As such their constituent segments must be
       included in the tin eve if doing so
       violates the Delauny criterion. Break lines contains these
       critical segments as a set of line strings.
source <xs:element name="breakLines" type="gml:LineStringSegmentArrayPropertyType" minOccurs="0" maxOccurs="unbounded">
 
<xs:annotation>
   
<xs:documentation>Breaklines are lines of a critical
       nature to the shape of the surface, representing local
       ridges, or depressions (such as drainage lines) in the
       surface. As such their constituent segments must be
       included in the tin eve if doing so
       violates the Delauny criterion. Break lines contains these
       critical segments as a set of line strings.
</xs:documentation>
 
</xs:annotation>
</xs:element>

element TinType/maxLength
diagram index_p1558.png
namespace http://www.opengis.net/gml
type gml:LengthType
properties
isRef 0
content complex
attributes
Name  Type  Use  Default  Fixed  annotation
uomxs:anyURIrequired      
annotation
documentation
Areas of the surface where data is not
       sufficiently dense to assure reasonable calculation shall be   
       removed by adding a retention criterion for triangles based
       on the length of their sides. For many triangle sides 
       exceeding maximum length, the adjacent triangles to that
       triangle side shall be removed from the surface.
source <xs:element name="maxLength" type="gml:LengthType">
 
<xs:annotation>
   
<xs:documentation>Areas of the surface where data is not
       sufficiently dense to assure reasonable calculation shall be   
       removed by adding a retention criterion for triangles based
       on the length of their sides. For many triangle sides 
       exceeding maximum length, the adjacent triangles to that
       triangle side shall be removed from the surface.
</xs:documentation>
 
</xs:annotation>
</xs:element>

element TinType/controlPoint
diagram index_p1559.png
namespace http://www.opengis.net/gml
properties
isRef 0
content complex
children gml:posList gml:pos gml:pointProperty
annotation
documentation
The corners of the triangles in the TIN
  are often referred to as pots. ControlPoint shall contain a
  set of the GM_Position used as posts for this TIN. Since each 
  TIN contains triangles, there must be at least 3 posts. The
       order in which these points are given does not affect the
       surface that is represented. Application schemas may add
       information based on ordering of control points to facilitate
       the reconstruction of the TIN from the control points.
source <xs:element name="controlPoint">
 
<xs:annotation>
   
<xs:documentation>The corners of the triangles in the TIN
  are often referred to as pots. ControlPoint shall contain a
  set of the GM_Position used as posts for this TIN. Since each 
  TIN contains triangles, there must be at least 3 posts. The
       order in which these points are given does not affect the
       surface that is represented. Application schemas may add
       information based on ordering of control points to facilitate
       the reconstruction of the TIN from the control points.
</xs:documentation>
 
</xs:annotation>
 
<xs:complexType>
   
<xs:choice>
     
<xs:element ref="gml:posList"/>
     
<xs:group ref="gml:geometricPositionGroup" minOccurs="3" maxOccurs="unbounded"/>
   
</xs:choice>
 
</xs:complexType>
</xs:element>


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