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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

<CODE>static&nbsp;<A HREF="../../../org/geotools/util/NumberRange.html" title="class in org.geotools.util">NumberRange</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/coverage/TypeMap.html#getRange(org.opengis.coverage.SampleDimensionType)">getRange</A></B>(SampleDimensionType&nbsp;type)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the full range of sample values for the specified dimension type.</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;SampleDimensionType</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/coverage/TypeMap.html#getSampleDimensionType(double, double)">getSampleDimensionType</A></B>(double&nbsp;min,
                       double&nbsp;max)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the smallest sample dimension type capable to hold the specified range of values.
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<CODE>static&nbsp;SampleDimensionType</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/coverage/TypeMap.html#getSampleDimensionType(long, long)">getSampleDimensionType</A></B>(long&nbsp;min,
                       long&nbsp;max)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the smallest sample dimension type capable to hold the specified range of values.</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;SampleDimensionType</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/coverage/TypeMap.html#getSampleDimensionType(javax.media.jai.util.Range)">getSampleDimensionType</A></B>(<A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/util/Range.html" title="class or interface in javax.media.jai.util">Range</A>&nbsp;range)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the smallest sample dimension type capable to hold the specified range of values.</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;SampleDimensionType</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/coverage/TypeMap.html#getSampleDimensionType(java.awt.image.SampleModel, int)">getSampleDimensionType</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/image/SampleModel.html" title="class or interface in java.awt.image">SampleModel</A>&nbsp;model,
                       int&nbsp;band)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the sample dimension type for the specified sample model and band number. </TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/coverage/TypeMap.html#getSize(org.opengis.coverage.SampleDimensionType)">getSize</A></B>(SampleDimensionType&nbsp;type)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the size in bits. </TD>
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<CODE>static&nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/coverage/TypeMap.html#isFloatingPoint(org.opengis.coverage.SampleDimensionType)">isFloatingPoint</A></B>(SampleDimensionType&nbsp;type)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns  for floating-point data type.</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/coverage/TypeMap.html#isSigned(org.opengis.coverage.SampleDimensionType)">isSigned</A></B>(SampleDimensionType&nbsp;type)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns  for signed sample type.</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Number.html" title="class or interface in java.lang">Number</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/coverage/TypeMap.html#wrapSample(double, org.opengis.coverage.SampleDimensionType, boolean)">wrapSample</A></B>(double&nbsp;value,
           SampleDimensionType&nbsp;type,
           boolean&nbsp;allowWidening)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Wraps the specified value into a number of the specified data type. </TD>
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&nbsp;<A NAME="methods_inherited_from_class_Object"><!-- --></A>
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<TD><B>Methods inherited from class <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A></B></TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#clone()" title="class or interface in java.lang">clone</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#equals(java.lang.Object)" title="class or interface in java.lang">equals</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#finalize()" title="class or interface in java.lang">finalize</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#getClass()" title="class or interface in java.lang">getClass</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#hashCode()" title="class or interface in java.lang">hashCode</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#notify()" title="class or interface in java.lang">notify</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#notifyAll()" title="class or interface in java.lang">notifyAll</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#toString()" title="class or interface in java.lang">toString</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#wait()" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#wait(long)" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#wait(long, int)" title="class or interface in java.lang">wait</A></CODE></TD>
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<B>Method Detail</B></FONT></TD>
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<A NAME="getSampleDimensionType(javax.media.jai.util.Range)"><!-- --></A><H3>
getSampleDimensionType</H3>
<PRE>
public static SampleDimensionType <B>getSampleDimensionType</B>(<A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/util/Range.html" title="class or interface in javax.media.jai.util">Range</A>&nbsp;range)</PRE>
<DL>
<DD>Returns the smallest sample dimension type capable to hold the specified range of values.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>range</CODE> - The range of values.
<DT><B>Returns:</B><DD>The smallest sample dimension type for the specified range.</DL>
</DD>
</DL>
<HR>

<A NAME="getSampleDimensionType(double, double)"><!-- --></A><H3>
getSampleDimensionType</H3>
<PRE>
public static SampleDimensionType <B>getSampleDimensionType</B>(double&nbsp;min,
                                                         double&nbsp;max)</PRE>
<DL>
<DD>Returns the smallest sample dimension type capable to hold the specified range of values.
 An heuristic approach is used for non-integer values.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>min</CODE> - The lower value, inclusive.<DD><CODE>max</CODE> - The upper value, <strong>inclusive</strong> as well.
<DT><B>Returns:</B><DD>The smallest sample dimension type for the specified range.</DL>
</DD>
</DL>
<HR>

<A NAME="getSampleDimensionType(long, long)"><!-- --></A><H3>
getSampleDimensionType</H3>
<PRE>
public static SampleDimensionType <B>getSampleDimensionType</B>(long&nbsp;min,
                                                         long&nbsp;max)</PRE>
<DL>
<DD>Returns the smallest sample dimension type capable to hold the specified range of values.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>min</CODE> - The lower value, inclusive.<DD><CODE>max</CODE> - The upper value, <strong>inclusive</strong> as well.
<DT><B>Returns:</B><DD>The smallest sample dimension type for the specified range.</DL>
</DD>
</DL>
<HR>

<A NAME="getSampleDimensionType(java.awt.image.SampleModel, int)"><!-- --></A><H3>
getSampleDimensionType</H3>
<PRE>
public static SampleDimensionType <B>getSampleDimensionType</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/image/SampleModel.html" title="class or interface in java.awt.image">SampleModel</A>&nbsp;model,
                                                         int&nbsp;band)
                                                                       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 the sample dimension type for the specified sample model and band number. If
 the sample model use an undefined data type, then this method returns .
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>model</CODE> - The sample model.<DD><CODE>band</CODE> - The band to query.
<DT><B>Returns:</B><DD>The sample dimension type for the specified sample model and band number.
<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 band number is not in the valid range.</DL>
</DD>
</DL>
<HR>

<A NAME="getName(org.opengis.coverage.SampleDimensionType)"><!-- --></A><H3>
getName</H3>
<PRE>
public static InternationalString <B>getName</B>(SampleDimensionType&nbsp;type)</PRE>
<DL>
<DD>Returns the sample dimension type name as an international string. For example, the localized
 name for <CODE>SampleDimensionType.UNSIGNED_16BITS</CODE> is "<cite>16 bits unsigned integer</cite>"
 in English and "<cite>Entier non-sign