envelope2d.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

<DD><DL>
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<DD><DL>
<DT><B>Parameters:</B><DD><CODE>crs</CODE> - The new coordinate reference system, or .</DL>
</DD>
</DL>
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<A NAME="getDimension()"><!-- --></A><H3>
getDimension</H3>
<PRE>
public final int <B>getDimension</B>()</PRE>
<DL>
<DD>Returns the number of dimensions.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>getDimension</CODE> in interface <CODE>Envelope</CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
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<A NAME="getLowerCorner()"><!-- --></A><H3>
getLowerCorner</H3>
<PRE>
public DirectPosition <B>getLowerCorner</B>()</PRE>
<DL>
<DD>A coordinate position consisting of all the minimal ordinates for each
 dimension for all points within the .
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>getLowerCorner</CODE> in interface <CODE>Envelope</CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>The lower corner.</DL>
</DD>
</DL>
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<A NAME="getUpperCorner()"><!-- --></A><H3>
getUpperCorner</H3>
<PRE>
public DirectPosition <B>getUpperCorner</B>()</PRE>
<DL>
<DD>A coordinate position consisting of all the maximal ordinates for each
 dimension for all points within the .
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>getUpperCorner</CODE> in interface <CODE>Envelope</CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>The upper corner.</DL>
</DD>
</DL>
<HR>

<A NAME="getMinimum(int)"><!-- --></A><H3>
getMinimum</H3>
<PRE>
public final double <B>getMinimum</B>(int&nbsp;dimension)</PRE>
<DL>
<DD>Returns the minimal ordinate along the specified dimension.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>getMinimum</CODE> in interface <CODE>Envelope</CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
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<A NAME="getMaximum(int)"><!-- --></A><H3>
getMaximum</H3>
<PRE>
public final double <B>getMaximum</B>(int&nbsp;dimension)</PRE>
<DL>
<DD>Returns the maximal ordinate along the specified dimension.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>getMaximum</CODE> in interface <CODE>Envelope</CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="getCenter(int)"><!-- --></A><H3>
getCenter</H3>
<PRE>
public final double <B>getCenter</B>(int&nbsp;dimension)</PRE>
<DL>
<DD>Returns the center ordinate along the specified dimension.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>getCenter</CODE> in interface <CODE>Envelope</CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="getLength(int)"><!-- --></A><H3>
getLength</H3>
<PRE>
public final double <B>getLength</B>(int&nbsp;dimension)</PRE>
<DL>
<DD>Returns the envelope length along the specified dimension.
 This length is equals to the maximum ordinate minus the
 minimal ordinate.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>getLength</CODE> in interface <CODE>Envelope</CODE></DL>
</DD>
<DD><DL>
</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 envelope. 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 envelope for equality.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="boundsEquals(org.opengis.spatialschema.geometry.Envelope, int, int, double)"><!-- --></A><H3>
boundsEquals</H3>
<PRE>
public boolean <B>boundsEquals</B>(Envelope&nbsp;that,
                            int&nbsp;xDim,
                            int&nbsp;yDim,
                            double&nbsp;eps)</PRE>
<DL>
<DD>Returns  if  envelope bounds is equals to  envelope
 bounds in two specified dimensions. The coordinate reference system is not compared, since
 it doesn't need to have the same number of dimensions.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>that</CODE> - The envelope to compare to.<DD><CODE>xDim</CODE> - The dimension of  envelope to compare to the <var>x</var> dimension
             of  envelope.<DD><CODE>yDim</CODE> - The dimension of  envelope to compare to the <var>y</var> dimension
             of  envelope.<DD><CODE>eps</CODE> - A small tolerance number for floating point number comparaisons. This value will
             be scaled according this envelope <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/geom/Rectangle2D.Double.html#width" title="class or interface in java.awt.geom">width</A> and
             <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/geom/Rectangle2D.Double.html#height" title="class or interface in java.awt.geom">height</A>.
<DT><B>Returns:</B><DD> if the envelope bounds are the same (up to the specified tolerance
         level) in the specified dimensions, or  otherwise.</DL>
</DD>
</DL>
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