XML Schema "grids.xsd"
Target Namespace:
Version:
3.2.1.2
Defined Components:
elements (3 global + 8 local), complexTypes (4)
Default Namespace-Qualified Form:
Local Elements: qualified; Local Attributes: unqualified
Schema Location:
http://schemas.opengis.net/gml/3.2.1/grids.xsd; see XML source
Includes Schemas (2):
Included in Schemas (1):
Annotation
See ISO/DIS 19136 20.2. An implicit description of geometry is one in which the items of the geometry do not explicitly appear in the encoding. Instead, a compact notation records a set of parameters, and a set of objects may be generated using a rule with these parameters. This Clause provides grid geometries that are used in the description of gridded coverages and other applications. In GML two grid structures are defined, namely gml:Grid and gml:RectifiedGrid. GML is an OGC Standard. Copyright (c) 2007,2010 Open Geospatial Consortium. To obtain additional rights of use, visit http://www.opengeospatial.org/legal/ .
All Element Summary
Type:
Content:
complex, 5 attributes, 5 elements
Abstract:
(may not be used directly in instance XML documents)
Subst.Gr:
affiliated to substitution group gml:AbstractGeometry; may be substituted with 2 elements
Defined:
globally; see XML source
Used:
Type:
Content:
simple
Defined:
locally within gml:GridType complexType; see XML source
gml:axisName (type string)
Type:
string
Content:
simple
Defined:
locally within gml:GridType complexType; see XML source
The gml:Grid implicitly defines an unrectified grid, which is a network composed of two or more sets of curves in which the members of each set intersect the members of the other sets in an algorithmic way.
Type:
Content:
complex, 6 attributes, 8 elements
Subst.Gr:
may substitute for elements: gml:AbstractImplicitGeometry, gml:AbstractGeometry, gml:AbstractGML, gml:AbstractObject; may be substituted with 1 element
Defined:
globally; see XML source
Used:
Type:
Content:
complex, 2 elements
Defined:
locally within gml:GridLimitsType complexType; see XML source
Type:
Content:
simple
Defined:
locally within gml:GridEnvelopeType complexType; see XML source
Type:
Content:
complex, 1 element
Defined:
locally within gml:GridType complexType; see XML source
Type:
Content:
simple
Defined:
locally within gml:GridEnvelopeType complexType; see XML source
Type:
Content:
simple, 4 attributes
Defined:
locally within gml:RectifiedGridType complexType; see XML source
Type:
Content:
complex, 10 attributes, 1 element
Defined:
locally within gml:RectifiedGridType complexType; see XML source
A rectified grid is a grid for which there is an affine transformation between the grid coordinates and the coordinates of an external coordinate reference system.
Type:
Content:
complex, 6 attributes, 10 elements
Subst.Gr:
Defined:
globally; see XML source
Used:
never
Complex Type Summary
Content:
complex, 2 elements
Defined:
globally; see XML source
Includes:
definitions of 2 elements
Used:
Content:
complex, 1 element
Defined:
globally; see XML source
Includes:
definition of 1 element
Used:
Content:
complex, 6 attributes, 8 elements
Defined:
globally; see XML source
Includes:
definitions of 1 attribute, 3 elements
Used:
Content:
complex, 6 attributes, 10 elements
Defined:
globally; see XML source
Includes:
definitions of 2 elements
Used:
XML Source
<?xml version="1.0" encoding="UTF-8"?>
<schema elementFormDefault="qualified" targetNamespace="http://www.opengis.net/gml/3.2" version="3.2.1.2" xmlns="http://www.w3.org/2001/XMLSchema" xmlns:gml="http://www.opengis.net/gml/3.2" xmlns:xlink="http://www.w3.org/1999/xlink">
<annotation>
<appinfo source="urn:x-ogc:specification:gml:schema-xsd:grids:3.2.1">grids.xsd</appinfo>
<documentation>
See ISO/DIS 19136 20.2.
An implicit description of geometry is one in which the items of the geometry do not explicitly appear in the encoding. Instead, a compact notation records a set of parameters, and a set of objects may be generated using a rule with these parameters. This Clause provides grid geometries that are used in the description of gridded coverages and other applications.
In GML two grid structures are defined, namely gml:Grid and gml:RectifiedGrid.

GML is an OGC Standard.
Copyright (c) 2007,2010 Open Geospatial Consortium.
To obtain additional rights of use, visit http://www.opengeospatial.org/legal/ .
</documentation>
</annotation>
<include schemaLocation="gml.xsd"/>
<include schemaLocation="geometryBasic0d1d.xsd"/>
<element name="Grid" substitutionGroup="gml:AbstractImplicitGeometry" type="gml:GridType">
<annotation>
<documentation>
The gml:Grid implicitly defines an unrectified grid, which is a network composed of two or more sets of curves in which the members of each set intersect the members of the other sets in an algorithmic way. The region of interest within the grid is given in terms of its gml:limits, being the grid coordinates of diagonally opposed corners of a rectangular region. gml:axisLabels is provided with a list of labels of the axes of the grid (gml:axisName has been deprecated). gml:dimension specifies the dimension of the grid.
The gml:limits element contains a single gml:GridEnvelope. The gml:low and gml:high property elements of the envelope are each integerLists, which are coordinate tuples, the coordinates being measured as offsets from the origin of the grid along each axis, of the diagonally opposing corners of a "rectangular" region of interest.
</documentation>
</annotation>
</element>
<element abstract="true" name="AbstractImplicitGeometry" substitutionGroup="gml:AbstractGeometry" type="gml:AbstractGeometryType"/>
<complexType name="GridType">
<complexContent>
<extension base="gml:AbstractGeometryType">
<sequence>
<element name="limits" type="gml:GridLimitsType"/>
<choice>
<element name="axisLabels" type="gml:NCNameList"/>
<element maxOccurs="unbounded" name="axisName" type="string"/>
</choice>
</sequence>
<attribute name="dimension" type="positiveInteger" use="required"/>
</extension>
</complexContent>
</complexType>
<complexType name="GridLimitsType">
<sequence>
<element name="GridEnvelope" type="gml:GridEnvelopeType"/>
</sequence>
</complexType>
<complexType name="GridEnvelopeType">
<sequence>
<element name="low" type="gml:integerList"/>
<element name="high" type="gml:integerList"/>
</sequence>
</complexType>
<element name="RectifiedGrid" substitutionGroup="gml:Grid" type="gml:RectifiedGridType">
<annotation>
<documentation>
A rectified grid is a grid for which there is an affine transformation between the grid coordinates and the coordinates of an external coordinate reference system. It is defined by specifying the position (in some geometric space) of the grid "origin" and of the vectors that specify the post locations.
Note that the grid limits (post indexes) and axis name properties are inherited from gml:GridType and that gml:RectifiedGrid adds a gml:origin property (contains or references a gml:Point) and a set of gml:offsetVector properties.
</documentation>
</annotation>
</element>
<complexType name="RectifiedGridType">
<complexContent>
<extension base="gml:GridType">
<sequence>
<element name="origin" type="gml:PointPropertyType"/>
<element maxOccurs="unbounded" name="offsetVector" type="gml:VectorType"/>
</sequence>
</extension>
</complexContent>
</complexType>
</schema>

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