generalgridgeometry.html

Geotools是一个开源的Java GIS工具包,可利用它来开发符合标准的地理信息系统。Geotools提供了OGC(Open Geospatial Consortium)规范的一个实现来作为他们的

public static <A HREF="../../../../org/geotools/geometry/GeneralEnvelope.html" title="class in org.geotools.geometry">GeneralEnvelope</A> <B>getEnvelope</B>(GridRange&nbsp;gridRange,
                                          MathTransform&nbsp;gridToCRS,
                                          CoordinateReferenceSystem&nbsp;crs,
                                          boolean&nbsp;halfPix)
                                   throws MismatchedDimensionException,
                                          <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/IllegalArgumentException.html" title="class or interface in java.lang">IllegalArgumentException</A></PRE>
<DL>
<DD><B>Deprecated.</B>&nbsp;<I>Use <CODE>GeneralEnvelope(GridRange, PixelInCell, MathTransform,
             CoordinateReferenceSystem)</CODE> instead.</I>
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE>MismatchedDimensionException</CODE>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/IllegalArgumentException.html" title="class or interface in java.lang">IllegalArgumentException</A></CODE><DT><B>Since:</B></DT>
  <DD>2.3</DD>
</DL>
</DD>
</DL>
<HR>

<A NAME="getGridRange()"><!-- --></A><H3>
getGridRange</H3>
<PRE>
public GridRange <B>getGridRange</B>()
                                                 throws <A HREF="../../../../org/geotools/coverage/grid/InvalidGridGeometryException.html" title="class in org.geotools.coverage.grid">InvalidGridGeometryException</A></PRE>
<DL>
<DD>Returns the valid coordinate range of a grid coverage. The lowest valid grid coordinate is
 zero for <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/image/BufferedImage.html" title="class or interface in java.awt.image"><CODE>BufferedImage</CODE></A>, but may be non-zero for arbitrary <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/image/RenderedImage.html" title="class or interface in java.awt.image"><CODE>RenderedImage</CODE></A>. A
 grid with 512 cells can have a minimum coordinate of 0 and maximum of 512, with 511 as the
 highest valid index.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>getGridRange</CODE> in interface <CODE>GridGeometry</CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>The grid range (never ).
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../org/geotools/coverage/grid/InvalidGridGeometryException.html" title="class in org.geotools.coverage.grid">InvalidGridGeometryException</A></CODE> - if this grid geometry has no grid range (i.e.
         <code><A HREF="../../../../org/geotools/coverage/grid/GeneralGridGeometry.html#isDefined(int)">isDefined</A>(<A HREF="../../../../org/geotools/coverage/grid/GeneralGridGeometry.html#GRID_RANGE">GRID_RANGE</A>)</code>
         returned ).<DT><B>See Also:</B><DD><A HREF="../../../../org/geotools/coverage/grid/GridGeometry2D.html#getGridRange2D()"><CODE>GridGeometry2D.getGridRange2D()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getGridToCoordinateSystem()"><!-- --></A><H3>
getGridToCoordinateSystem</H3>
<PRE>
public MathTransform <B>getGridToCoordinateSystem</B>()
                                                                          throws <A HREF="../../../../org/geotools/coverage/grid/InvalidGridGeometryException.html" title="class in org.geotools.coverage.grid">InvalidGridGeometryException</A></PRE>
<DL>
<DD><B>Deprecated.</B>&nbsp;<I>Renamed as <A HREF="../../../../org/geotools/coverage/grid/GeneralGridGeometry.html#getGridToCRS()"><CODE>getGridToCRS()</CODE></A>.</I>
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>getGridToCoordinateSystem</CODE> in interface <CODE>GridGeometry</CODE></DL>
</DD>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../org/geotools/coverage/grid/InvalidGridGeometryException.html" title="class in org.geotools.coverage.grid">InvalidGridGeometryException</A></CODE></DL>
</DD>
</DL>
<HR>

<A NAME="getGridToCRS()"><!-- --></A><H3>
getGridToCRS</H3>
<PRE>
public MathTransform <B>getGridToCRS</B>()
                                                             throws <A HREF="../../../../org/geotools/coverage/grid/InvalidGridGeometryException.html" title="class in org.geotools.coverage.grid">InvalidGridGeometryException</A></PRE>
<DL>
<DD>Returns the transform from grid coordinates to real world earth coordinates.
 The transform is often an affine transform. The coordinate reference system of the
 real world coordinates is given by
 <CODE>Coverage.getCoordinateReferenceSystem()</CODE>.
 <p>
 <strong>Note:</strong> OpenGIS requires that the transform maps <em>pixel centers</em>
 to real world coordinates. This is different from some other systems that map pixel's
 upper left corner.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>getGridToCRS</CODE> in interface <CODE>GridGeometry</CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>The transform (never ).
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../org/geotools/coverage/grid/InvalidGridGeometryException.html" title="class in org.geotools.coverage.grid">InvalidGridGeometryException</A></CODE> - if this grid geometry has no transform (i.e.
         <code><A HREF="../../../../org/geotools/coverage/grid/GeneralGridGeometry.html#isDefined(int)">isDefined</A>(<A HREF="../../../../org/geotools/coverage/grid/GeneralGridGeometry.html#GRID_TO_CRS">GRID_TO_CRS</A>)</code>
         returned ).<DT><B>Since:</B></DT>
  <DD>2.3</DD>
<DT><B>See Also:</B><DD><A HREF="../../../../org/geotools/coverage/grid/GridGeometry2D.html#getGridToCRS2D()"><CODE>GridGeometry2D.getGridToCRS2D()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getGridToCRS(org.opengis.referencing.datum.PixelInCell)"><!-- --></A><H3>
getGridToCRS</H3>
<PRE>
public MathTransform <B>getGridToCRS</B>(PixelInCell&nbsp;halfPixel)
                                                             throws <A HREF="../../../../org/geotools/coverage/grid/InvalidGridGeometryException.html" title="class in org.geotools.coverage.grid">InvalidGridGeometryException</A></PRE>
<DL>
<DD>Returns the transform from grid coordinates to real world earth coordinates.
 This is similar to <A HREF="../../../../org/geotools/coverage/grid/GeneralGridGeometry.html#getGridToCRS()"><CODE>getGridToCRS()</CODE></A> except that the transform may maps
 other parts than pixel center.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>halfPixel</CODE> - The pixel part to map.
<DT><B>Returns:</B><DD>The transform (never ).
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../org/geotools/coverage/grid/InvalidGridGeometryException.html" title="class in org.geotools.coverage.grid">InvalidGridGeometryException</A></CODE> - if this grid geometry has no transform (i.e.
         <code><A HREF="../../../../org/geotools/coverage/grid/GeneralGridGeometry.html#isDefined(int)">isDefined</A>(<A HREF="../../../../org/geotools/coverage/grid/GeneralGridGeometry.html#GRID_TO_CRS">GRID_TO_CRS</A>)</code>
         returned ).<DT><B>Since:</B></DT>
  <DD>2.3</DD>
</DL>
</DD>
</DL>
<HR>

<A NAME="isDefined(int)"><!-- --></A><H3>
isDefined</H3>
<PRE>
public boolean <B>isDefined</B>(int&nbsp;bitmask)
                  throws <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/IllegalArgumentException.html" title="class or interface in java.lang">IllegalArgumentException</A></PRE>
<DL>
<DD>Returns  if all the parameters specified by the argument are set.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>bitmask</CODE> - Any combinaison of <A HREF="../../../../org/geotools/coverage/grid/GeneralGridGeometry.html#CRS"><CODE>CRS</CODE></A>, <A HREF="../../../../org/geotools/coverage/grid/GeneralGridGeometry.html#ENVELOPE"><CODE>ENVELOPE</CODE></A>, <A HREF="../../../../org/geotools/coverage/grid/GeneralGridGeometry.html#GRID_RANGE"><CODE>GRID_RANGE</CODE></A>
         and <A HREF="../../../../org/geotools/coverage/grid/GeneralGridGeometry.html#GRID_TO_CRS"><CODE>GRID_TO_CRS</CODE></A>.
<DT><B>Returns:</B><DD> if all specified attributes are defined (i.e. invoking the
         corresponding method will not thrown an <A HREF="../../../../org/geotools/coverage/grid/InvalidGridGeometryException.html" title="class in org.geotools.coverage.grid"><CODE>InvalidGridGeometryException</CODE></A>).
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/IllegalArgumentException.html" title="class or interface in java.lang">IllegalArgumentException</A></CODE> - if the specified bitmask is not a combinaison of known
         masks.<DT><B>Since:</B></DT>
  <DD>2.2</DD>
</DL>
</DD>
</DL>
<HR>

<A NAME="hashCode()"><!-- --></A><H3>
hashCode</H3>
<PRE>
public int <B>hashCode</B>()</PRE>
<DL>
<DD>Returns a hash value for this grid geometry. This value need not remain
 consistent between different implementations of the same class.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="equals(java.lang.Object)"><!-- --></A><H3>
equals</H3>
<PRE>
public boolean <B>equals</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A>&nbsp;object)</PRE>
<DL>
<DD>Compares the specified object with this grid geometry for equality.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="toString()"><!-- --></A><H3>
toString</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> <B>toString</B>()</PRE>
<DL>
<DD>Returns a string repr閟entation of this grid geometry. The returned string
 is implementation dependent. It is usually provided for debugging purposes.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
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