spatiotemporalcoverage3d.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

                     throws CannotEvaluateException</PRE>
<DL>
<DD>Returns a sequence of integer values for a given point in the coverage.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>evaluate</CODE> in interface <CODE>Coverage</CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../../org/geotools/coverage/AbstractCoverage.html#evaluate(org.opengis.spatialschema.geometry.DirectPosition, int[])">evaluate</A></CODE> in class <CODE><A HREF="../../../org/geotools/coverage/AbstractCoverage.html" title="class in org.geotools.coverage">AbstractCoverage</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>coord</CODE> - The coordinate point where to evaluate.<DD><CODE>dest</CODE> - An array in which to store values, or  to create a
            new array.
<DT><B>Returns:</B><DD>The  array, or a newly created array if 
         was null.
<DT><B>Throws:</B>
<DD><CODE>CannotEvaluateException</CODE> - if the values can't be computed at the specified coordinate.
             More specifically, <CODE>PointOutsideCoverageException</CODE> is
             thrown if the evaluation failed because the input point has
             invalid coordinates. This exception may also be throws if the
             coverage data type can't be converted to  by an
             identity or widening conversion. Subclasses may relax this
             constraint if appropriate.</DL>
</DD>
</DL>
<HR>

<A NAME="evaluate(org.opengis.spatialschema.geometry.DirectPosition, float[])"><!-- --></A><H3>
evaluate</H3>
<PRE>
public final float[] <B>evaluate</B>(DirectPosition&nbsp;coord,
                              float[]&nbsp;dest)
                       throws CannotEvaluateException</PRE>
<DL>
<DD>Returns a sequence of float values for a given point in the coverage.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>evaluate</CODE> in interface <CODE>Coverage</CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../../org/geotools/coverage/AbstractCoverage.html#evaluate(org.opengis.spatialschema.geometry.DirectPosition, float[])">evaluate</A></CODE> in class <CODE><A HREF="../../../org/geotools/coverage/AbstractCoverage.html" title="class in org.geotools.coverage">AbstractCoverage</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>coord</CODE> - The coordinate point where to evaluate.<DD><CODE>dest</CODE> - An array in which to store values, or  to create a
            new array.
<DT><B>Returns:</B><DD>The  array, or a newly created array if 
         was null.
<DT><B>Throws:</B>
<DD><CODE>CannotEvaluateException</CODE> - if the values can't be computed at the specified coordinate.
             More specifically, <CODE>PointOutsideCoverageException</CODE> is
             thrown if the evaluation failed because the input point has
             invalid coordinates. This exception may also be throws if the
             coverage data type can't be converted to  by an
             identity or widening conversion. Subclasses may relax this
             constraint if appropriate.</DL>
</DD>
</DL>
<HR>

<A NAME="evaluate(org.opengis.spatialschema.geometry.DirectPosition, double[])"><!-- --></A><H3>
evaluate</H3>
<PRE>
public final double[] <B>evaluate</B>(DirectPosition&nbsp;coord,
                               double[]&nbsp;dest)
                        throws CannotEvaluateException</PRE>
<DL>
<DD>Returns a sequence of double values for a given point in the coverage.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>evaluate</CODE> in interface <CODE>Coverage</CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../../org/geotools/coverage/AbstractCoverage.html#evaluate(org.opengis.spatialschema.geometry.DirectPosition, double[])">evaluate</A></CODE> in class <CODE><A HREF="../../../org/geotools/coverage/AbstractCoverage.html" title="class in org.geotools.coverage">AbstractCoverage</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>coord</CODE> - The coordinate point where to evaluate.<DD><CODE>dest</CODE> - An array in which to store values, or  to create a
            new array.
<DT><B>Returns:</B><DD>The  array, or a newly created array if 
         was null.
<DT><B>Throws:</B>
<DD><CODE>CannotEvaluateException</CODE> - if the values can't be computed at the specified coordinate.
             More specifically, <CODE>PointOutsideCoverageException</CODE> is
             thrown if the evaluation failed because the input point has
             invalid coordinates. This exception may also be throws if the
             coverage data type can't be converted to  by an
             identity or widening conversion. Subclasses may relax this
             constraint if appropriate.</DL>
</DD>
</DL>
<HR>

<A NAME="getGridCoverage2D(java.util.Date)"><!-- --></A><H3>
getGridCoverage2D</H3>
<PRE>
public <A HREF="../../../org/geotools/coverage/grid/GridCoverage2D.html" title="class in org.geotools.coverage.grid">GridCoverage2D</A> <B>getGridCoverage2D</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/Date.html" title="class or interface in java.util">Date</A>&nbsp;time)
                                 throws CannotEvaluateException</PRE>
<DL>
<DD>Returns a 2 dimensional grid coverage for the given date. The grid geometry will be computed
 in order to produces image with the <A HREF="../../../org/geotools/coverage/SpatioTemporalCoverage3D.html#getDefaultPixelSize()">default pixel size</A>,
 if any.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>time</CODE> - The date where to evaluate.
<DT><B>Returns:</B><DD>The grid coverage at the specified time, or 
         if the requested date fall in a hole in the data.
<DT><B>Throws:</B>
<DD><CODE>PointOutsideCoverageException</CODE> - if  is outside coverage.
<DD><CODE>CannotEvaluateException</CODE> - if the computation failed for some other reason.<DT><B>See Also:</B><DD><A HREF="../../../org/geotools/coverage/SpatioTemporalCoverage3D.html#getRenderableImage(java.util.Date)"><CODE>getRenderableImage(Date)</CODE></A>, 
<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/image/renderable/RenderableImage.html#createDefaultRendering()" title="class or interface in java.awt.image.renderable"><CODE>RenderableImage.createDefaultRendering()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getRenderableImage(java.util.Date)"><!-- --></A><H3>
getRenderableImage</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/image/renderable/RenderableImage.html" title="class or interface in java.awt.image.renderable">RenderableImage</A> <B>getRenderableImage</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/Date.html" title="class or interface in java.util">Date</A>&nbsp;date)</PRE>
<DL>
<DD>Returns 2D view of this grid coverage at the given date. For images produced by the
 <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/image/renderable/RenderableImage.html#createDefaultRendering()" title="class or interface in java.awt.image.renderable">default rendering</A>, the size
 will be computed from the <A HREF="../../../org/geotools/coverage/SpatioTemporalCoverage3D.html#getDefaultPixelSize()">default pixel size</A>,
 if any.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>date</CODE> - The date where to evaluate the images.
<DT><B>Returns:</B><DD>The renderable image.</DL>
</DD>
</DL>
<HR>

<A NAME="getDefaultPixelSize()"><!-- --></A><H3>
getDefaultPixelSize</H3>
<PRE>
protected <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/geom/Dimension2D.html" title="class or interface in java.awt.geom">Dimension2D</A> <B>getDefaultPixelSize</B>()</PRE>
<DL>
<DD>Returns the default pixel size for images to be produced by <A HREF="../../../org/geotools/coverage/SpatioTemporalCoverage3D.html#getRenderableImage(java.util.Date)"><CODE>getRenderableImage(Date)</CODE></A>.
 This method is invoked by <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/image/renderable/RenderableImage.html#createDefaultRendering()" title="class or interface in java.awt.image.renderable"><CODE>RenderableImage.createDefaultRendering()</CODE></A> for computing a
 default image size. The default implementation for this method always returns .
 Subclasses should overrides this method in order to provides a pixel size better suited to
 their data.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>The default pixel size, or  if no default is provided.</DL>
</DD>
</DL>
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