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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc (build 1.4.2_13) on Tue Jun 05 11:36:22 GMT-05:00 2007 --><META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><TITLE>GeneralGridGeometry (Geotools 2.3.x 2.3.2 API)</TITLE><META NAME="keywords" CONTENT="org.geotools.coverage.grid.GeneralGridGeometry class"><META NAME="keywords" CONTENT="CRS"><META NAME="keywords" CONTENT="ENVELOPE"><META NAME="keywords" CONTENT="GRID_RANGE"><META NAME="keywords" CONTENT="GRID_TO_CRS"><META NAME="keywords" CONTENT="gridRange"><META NAME="keywords" CONTENT="gridToCRS"><META NAME="keywords" CONTENT="getTransform()"><META NAME="keywords" CONTENT="reverse()"><META NAME="keywords" CONTENT="swapXY()"><META NAME="keywords" CONTENT="getDimension()"><META NAME="keywords" CONTENT="getCoordinateReferenceSystem()"><META NAME="keywords" CONTENT="getEnvelope()"><META NAME="keywords" CONTENT="getGridRange()"><META NAME="keywords" CONTENT="getGridToCoordinateSystem()"><META NAME="keywords" CONTENT="getGridToCRS()"><META NAME="keywords" CONTENT="isDefined()"><META NAME="keywords" CONTENT="hashCode()"><META NAME="keywords" CONTENT="equals()"><META NAME="keywords" CONTENT="toString()"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="GeneralGridGeometry (Geotools 2.3.x 2.3.2 API)";}</SCRIPT></HEAD><BODY BGCOLOR="white" onload="windowTitle();"><!-- ========= START OF TOP NAVBAR ======= --><A NAME="navbar_top"><!-- --></A><A HREF="#skip-navbar_top" title="Skip navigation links"></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""><TR><TD COLSPAN=3 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/GeneralGridGeometry.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../org/geotools/coverage/grid/GeneralGridCoordinates.html" title="class in org.geotools.coverage.grid"><B>PREV CLASS</B></A> <A HREF="../../../../org/geotools/coverage/grid/GeneralGridRange.html" title="class in org.geotools.coverage.grid"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../index.html" target="_top"><B>FRAMES</B></A> <A HREF="GeneralGridGeometry.html" target="_top"><B>NO FRAMES</B></A> <SCRIPT type="text/javascript"> <!-- if(window==top) { document.writeln('<A HREF="../../../../allclasses-noframe.html"><B>All Classes</B></A>'); } //--></SCRIPT><NOSCRIPT> <A HREF="../../../../allclasses-noframe.html"><B>All Classes</B></A></NOSCRIPT></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: NESTED | <A HREF="#field_summary">FIELD</A> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: <A HREF="#field_detail">FIELD</A> | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><A NAME="skip-navbar_top"></A><!-- ========= END OF TOP NAVBAR ========= --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">org.geotools.coverage.grid</FONT><BR>Class GeneralGridGeometry</H2><PRE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A> <IMG SRC="../../../../resources/inherit.gif" ALT="extended by"><B>GeneralGridGeometry</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD>GridGeometry, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/Serializable.html" title="class or interface in java.io">Serializable</A></DD></DL><DL><DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../../org/geotools/coverage/grid/GridGeometry2D.html" title="class in org.geotools.coverage.grid">GridGeometry2D</A></DD></DL><HR><DL><DT>public class <B>GeneralGridGeometry</B><DT>extends <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A><DT>implements GridGeometry, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/Serializable.html" title="class or interface in java.io">Serializable</A></DL><P>Describes the valid range of grid coordinates and the math transform to transform grid coordinates to real world coordinates. Grid geometries contains: <p> <ul> <li>An optional grid range, usually inferred from the <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/image/RenderedImage.html" title="class or interface in java.awt.image">rendered image</A> size.</li> <li>An optional "grid to CRS" transform, which may be inferred from the grid range and the envelope.</li> <li>An optional envelope, which may be inferred from the grid range and the "grid to CRS" transform.</li> <li>An optional coordinate reference system to be given to the envelope.</li> </ul> <p> All grid geometry attributes are optional because some of them may be inferred from a wider context. For example a grid geometry know nothing about <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/image/RenderedImage.html" title="class or interface in java.awt.image">rendered images</A>, but <A HREF="../../../../org/geotools/coverage/grid/GridCoverage2D.html" title="class in org.geotools.coverage.grid"><CODE>GridCoverage2D</CODE></A> do. Consequently, the later may infer the grid range by itself. <p> By default, any request for an undefined attribute will thrown an <A HREF="../../../../org/geotools/coverage/grid/InvalidGridGeometryException.html" title="class in org.geotools.coverage.grid"><CODE>InvalidGridGeometryException</CODE></A>. In order to check if an attribute is defined, use <A HREF="../../../../org/geotools/coverage/grid/GeneralGridGeometry.html#isDefined(int)"><CODE>isDefined(int)</CODE></A>.<P><P><DL><DT><B>Since:</B></DT> <DD>2.1</DD><DT><B>Author:</B></DT> <DD>Martin Desruisseaux, Alessio Fabiani</DD><DT><B>See Also:</B><DD><A HREF="../../../../serialized-form.html#org.geotools.coverage.grid.GeneralGridGeometry">Serialized Form</A><DT><B>Module:</B></DT><DD><CODE><B>module/coverage</B></CODE> (<A HREF="http://maven.geotools.fr/repository/org/geotools/gt2-coverage/"><CODE>gt2-coverage.jar</CODE></A>) (<A HREF="http://maven.geotools.fr/reports/coverage/index.html">Maven report</A>) (<A HREF="http://svn.geotools.org/geotools/tags/2.3.2/module/coverage/src/org/geotools/coverage/grid/GeneralGridGeometry.java">SVN head</A>)</DD></DL><HR><P><!-- ======== NESTED CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><A NAME="field_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Field Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/geotools/coverage/grid/GeneralGridGeometry.html#CRS">CRS</A></B></CODE><BR> A bitmask to specify the validity of the <A HREF="../../../../org/geotools/coverage/grid/GeneralGridGeometry.html#getCoordinateReferenceSystem()">coordinate reference system</A>. </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/geotools/coverage/grid/GeneralGridGeometry.html#ENVELOPE">ENVELOPE</A></B></CODE><BR> A bitmask to specify the validity of the <A HREF="../../../../org/geotools/coverage/grid/GeneralGridGeometry.html#getEnvelope()">envelope</A>. </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/geotools/coverage/grid/GeneralGridGeometry.html#GRID_RANGE">GRID_RANGE</A></B></CODE><BR> A bitmask to specify the validity of the <A HREF="../../../../org/geotools/coverage/grid/GeneralGridGeometry.html#getGridRange()">grid range</A>. </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/geotools/coverage/grid/GeneralGridGeometry.html#GRID_TO_CRS">GRID_TO_CRS</A></B></CODE><BR> A bitmask to specify the validity of the <A HREF="../../../../org/geotools/coverage/grid/GeneralGridGeometry.html#getGridToCoordinateSystem()">grid to CRS</A> transform. </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected GridRange</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/geotools/coverage/grid/GeneralGridGeometry.html#gridRange">gridRange</A></B></CODE><BR> The valid coordinate range of a grid coverage, or if none. </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected MathTransform</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/geotools/coverage/grid/GeneralGridGeometry.html#gridToCRS">gridToCRS</A></B></CODE><BR> The math transform (usually an affine transform), or if none. </TD></TR></TABLE> <!-- ======== CONSTRUCTOR SUMMARY ======== --><A NAME="constructor_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Constructor Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../../org/geotools/coverage/grid/GeneralGridGeometry.html#GeneralGridGeometry(org.opengis.coverage.grid.GridRange, org.opengis.spatialschema.geometry.Envelope)">GeneralGridGeometry</A></B>(GridRange gridRange, Envelope userRange)</CODE><BR> Constructs a new grid geometry from an envelope. </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../../org/geotools/coverage/grid/GeneralGridGeometry.html#GeneralGridGeometry(org.opengis.coverage.grid.GridRange, org.opengis.spatialschema.geometry.Envelope, boolean[], boolean)">GeneralGridGeometry</A></B>(GridRange gridRange, Envelope userRange, boolean[] reverse, boolean swapXY)</CODE><BR> Constructs a new grid geometry from an envelope. </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../../org/geotools/coverage/grid/GeneralGridGeometry.html#GeneralGridGeometry(org.opengis.coverage.grid.GridRange, org.opengis.referencing.operation.MathTransform, org.opengis.referencing.crs.CoordinateReferenceSystem)">GeneralGridGeometry</A></B>(GridRange gridRange, MathTransform gridToCRS, CoordinateReferenceSystem crs)</CODE><BR> Constructs a new grid geometry from a math transform mapping pixel center. </TD></TR></TABLE> <!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">⌨️ 快捷键说明
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