grids.xsd

由国外的一个著名的geonetwork修改而来

<?xml version="1.0" encoding="UTF-8"?>
<schema targetNamespace="http://www.opengis.net/gml" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns="http://www.w3.org/2001/XMLSchema" xmlns:gml="http://www.opengis.net/gml" elementFormDefault="qualified" version="3.2.0">
	<annotation>
		<appinfo source="urn:ogc:specification:gml:schema-xsd:grids:3.2.0">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.</documentation>
	</annotation>
	<include schemaLocation="geometryBasic0d1d.xsd"/>
	<element name="Grid" type="gml:GridType" substitutionGroup="gml:AbstractImplicitGeometry">
		<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 鈥渞ectangular鈥