chartutilities.html

JFreeChart 9.20的文档 需要用JAVA在网页上做统计图的东东

                                   <A HREF="../../../org/jfree/chart/ChartRenderingInfo.html" title="class in org.jfree.chart">ChartRenderingInfo</A>&nbsp;info)
                            throws java.io.IOException</PRE>
<DL>
<DD>Saves a chart to a file in JPEG format.  This method allows you to pass in a 
 <A HREF="../../../org/jfree/chart/ChartRenderingInfo.html" title="class in org.jfree.chart"><CODE>ChartRenderingInfo</CODE></A> object, to collect information about the chart 
 dimensions/entities.  You will need this info if you want to create an HTML image map.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>file</CODE> - the file name (<code>null</code> not permitted).<DD><CODE>quality</CODE> - the quality setting.<DD><CODE>chart</CODE> - the chart (<code>null</code> not permitted).<DD><CODE>width</CODE> - the image width.<DD><CODE>height</CODE> - the image height.<DD><CODE>info</CODE> - the chart rendering info (<code>null</code> permitted).
<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE> - if there are any I/O errors.</DL>
</DD>
</DL>
<HR>

<A NAME="writeBufferedImageAsJPEG(java.io.OutputStream, java.awt.image.BufferedImage)"><!-- --></A><H3>
writeBufferedImageAsJPEG</H3>
<PRE>
public static void <B>writeBufferedImageAsJPEG</B>(java.io.OutputStream&nbsp;out,
                                            java.awt.image.BufferedImage&nbsp;image)
                                     throws java.io.IOException</PRE>
<DL>
<DD>Writes a <CODE>BufferedImage</CODE> to an output stream in JPEG format.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>out</CODE> - the output stream (<code>null</code> not permitted).<DD><CODE>image</CODE> - the image (<code>null</code> not permitted).
<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE> - if there are any I/O errors.</DL>
</DD>
</DL>
<HR>

<A NAME="writeBufferedImageAsJPEG(java.io.OutputStream, float, java.awt.image.BufferedImage)"><!-- --></A><H3>
writeBufferedImageAsJPEG</H3>
<PRE>
public static void <B>writeBufferedImageAsJPEG</B>(java.io.OutputStream&nbsp;out,
                                            float&nbsp;quality,
                                            java.awt.image.BufferedImage&nbsp;image)
                                     throws java.io.IOException</PRE>
<DL>
<DD>Writes a <CODE>BufferedImage</CODE> to an output stream in JPEG format.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>out</CODE> - the output stream (<code>null</code> not permitted).<DD><CODE>quality</CODE> - the image quality (0.0f to 1.0f).<DD><CODE>image</CODE> - the image (<code>null</code> not permitted).
<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE> - if there are any I/O errors.</DL>
</DD>
</DL>
<HR>

<A NAME="writeBufferedImageAsPNG(java.io.OutputStream, java.awt.image.BufferedImage)"><!-- --></A><H3>
writeBufferedImageAsPNG</H3>
<PRE>
public static void <B>writeBufferedImageAsPNG</B>(java.io.OutputStream&nbsp;out,
                                           java.awt.image.BufferedImage&nbsp;image)
                                    throws java.io.IOException</PRE>
<DL>
<DD>Writes a <CODE>BufferedImage</CODE> to an output stream in PNG format.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>out</CODE> - the output stream (<code>null</code> not permitted).<DD><CODE>image</CODE> - the image (<code>null</code> not permitted).
<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE> - if there are any I/O errors.</DL>
</DD>
</DL>
<HR>

<A NAME="writeBufferedImageAsPNG(java.io.OutputStream, java.awt.image.BufferedImage, boolean, int)"><!-- --></A><H3>
writeBufferedImageAsPNG</H3>
<PRE>
public static void <B>writeBufferedImageAsPNG</B>(java.io.OutputStream&nbsp;out,
                                           java.awt.image.BufferedImage&nbsp;image,
                                           boolean&nbsp;encodeAlpha,
                                           int&nbsp;compression)
                                    throws java.io.IOException</PRE>
<DL>
<DD>Writes a <CODE>BufferedImage</CODE> to an output stream in PNG format.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>out</CODE> - the output stream (<code>null</code> not permitted).<DD><CODE>image</CODE> - the image (<code>null</code> not permitted).<DD><CODE>encodeAlpha</CODE> - encode alpha?<DD><CODE>compression</CODE> - the compression level (0-9).
<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE> - if there are any I/O errors.</DL>
</DD>
</DL>
<HR>

<A NAME="encodeAsPNG(java.awt.image.BufferedImage)"><!-- --></A><H3>
encodeAsPNG</H3>
<PRE>
public static byte[] <B>encodeAsPNG</B>(java.awt.image.BufferedImage&nbsp;image)</PRE>
<DL>
<DD>Encodes a <CODE>BufferedImage</CODE> to PNG format.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>image</CODE> - the image (<code>null</code> not permitted).
<DT><B>Returns:</B><DD>a byte array in PNG format.</DL>
</DD>
</DL>
<HR>

<A NAME="encodeAsPNG(java.awt.image.BufferedImage, boolean, int)"><!-- --></A><H3>
encodeAsPNG</H3>
<PRE>
public static byte[] <B>encodeAsPNG</B>(java.awt.image.BufferedImage&nbsp;image,
                                 boolean&nbsp;encodeAlpha,
                                 int&nbsp;compression)</PRE>
<DL>
<DD>Encodes a <CODE>BufferedImage</CODE> to PNG format.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>image</CODE> - the image (<code>null</code> not permitted).<DD><CODE>encodeAlpha</CODE> - encode alpha?<DD><CODE>compression</CODE> - the PNG compression level (0-9).
<DT><B>Returns:</B><DD>the byte array in PNG format.</DL>
</DD>
</DL>
<HR>

<A NAME="writeImageMap(java.io.PrintWriter, java.lang.String, org.jfree.chart.ChartRenderingInfo)"><!-- --></A><H3>
writeImageMap</H3>
<PRE>
public static void <B>writeImageMap</B>(java.io.PrintWriter&nbsp;writer,
                                 java.lang.String&nbsp;name,
                                 <A HREF="../../../org/jfree/chart/ChartRenderingInfo.html" title="class in org.jfree.chart">ChartRenderingInfo</A>&nbsp;info)
                          throws java.io.IOException</PRE>
<DL>
<DD>Writes an image map to an output stream.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>writer</CODE> - the writer (<code>null</code> not permitted).<DD><CODE>name</CODE> - the map name (<code>null</code> not permitted).<DD><CODE>info</CODE> - the chart rendering info (<code>null</code> not permitted).
<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE> - if there are any I/O errors.</DL>
</DD>
</DL>
<HR>

<A NAME="writeImageMap(java.io.PrintWriter, java.lang.String, org.jfree.chart.ChartRenderingInfo, boolean)"><!-- --></A><H3>
writeImageMap</H3>
<PRE>
public static void <B>writeImageMap</B>(java.io.PrintWriter&nbsp;writer,
                                 java.lang.String&nbsp;name,
                                 <A HREF="../../../org/jfree/chart/ChartRenderingInfo.html" title="class in org.jfree.chart">ChartRenderingInfo</A>&nbsp;info,
                                 boolean&nbsp;useOverLibForToolTips)
                          throws java.io.IOException</PRE>
<DL>
<DD>Writes an image map to an output stream.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>writer</CODE> - the writer (<code>null</code> not permitted).<DD><CODE>name</CODE> - the map name (<code>null</code> not permitted).<DD><CODE>info</CODE> - the chart rendering info (<code>null</code> not permitted).<DD><CODE>useOverLibForToolTips</CODE> - whether to use OverLIB for tooltips
                               (http://www.bosrup.com/web/overlib/).
<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE> - if there are any I/O errors.</DL>
</DD>
</DL>
<HR>

<A NAME="writeImageMap(java.io.PrintWriter, java.lang.String, org.jfree.chart.ChartRenderingInfo, org.jfree.chart.imagemap.ToolTipTagFragmentGenerator, org.jfree.chart.imagemap.URLTagFragmentGenerator)"><!-- --></A><H3>
writeImageMap</H3>
<PRE>
public static void <B>writeImageMap</B>(java.io.PrintWriter&nbsp;writer,
                                 java.lang.String&nbsp;name,
                                 <A HREF="../../../org/jfree/chart/ChartRenderingInfo.html" title="class in org.jfree.chart">ChartRenderingInfo</A>&nbsp;info,
                                 <A HREF="../../../org/jfree/chart/imagemap/ToolTipTagFragmentGenerator.html" title="interface in org.jfree.chart.imagemap">ToolTipTagFragmentGenerator</A>&nbsp;toolTipTagFragmentGenerator,
                                 <A HREF="../../../org/jfree/chart/imagemap/URLTagFragmentGenerator.html" title="interface in org.jfree.chart.imagemap">URLTagFragmentGenerator</A>&nbsp;urlTagFragmentGenerator)
                          throws java.io.IOException</PRE>
<DL>
<DD>Writes an image map to an output stream.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>writer</CODE> - the writer (<code>null</code> not permitted).<DD><CODE>name</CODE> - the map name (<code>null</code> not permitted).<DD><CODE>info</CODE> - the chart rendering info (<code>null</code> not permitted).<DD><CODE>toolTipTagFragmentGenerator</CODE> - the tool tip generator.<DD><CODE>urlTagFragmentGenerator</CODE> - the url generator.
<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE> - if there are any I/O errors.</DL>
</DD>
</DL>
<HR>

<A NAME="getImageMap(java.lang.String, org.jfree.chart.ChartRenderingInfo)"><!-- --></A><H3>
getImageMap</H3>
<PRE>
public static java.lang.String <B>getImageMap</B>(java.lang.String&nbsp;name,
                                           <A HREF="../../../org/jfree/chart/ChartRenderingInfo.html" title="class in org.jfree.chart">ChartRenderingInfo</A>&nbsp;info)</PRE>
<DL>
<DD>Creates an HTML image map.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>name</CODE> - the map name (<code>null</code> not permitted).<DD><CODE>info</CODE> - the chart rendering info (<code>null</code> not permitted).
<DT><B>Returns:</B><DD>the map tag.</DL>
</DD>
</DL>
<HR>

<A NAME="getImageMap(java.lang.String, org.jfree.chart.ChartRenderingInfo, org.jfree.chart.imagemap.ToolTipTagFragmentGenerator, org.jfree.chart.imagemap.URLTagFragmentGenerator)"><!-- --></A><H3>
getImageMap</H3>
<PRE>
public static java.lang.String <B>getImageMap</B>(java.lang.String&nbsp;name,
                                           <A HREF="../../../org/jfree/chart/ChartRenderingInfo.html" title="class in org.jfree.chart">ChartRenderingInfo</A>&nbsp;info,
                                           <A HREF="../../../org/jfree/chart/imagemap/ToolTipTagFragmentGenerator.html" title="interface in org.jfree.chart.imagemap">ToolTipTagFragmentGenerator</A>&nbsp;toolTipTagFragmentGenerator,
                                           <A HREF="../../../org/jfree/chart/imagemap/URLTagFragmentGenerator.html" title="interface in org.jfree.chart.imagemap">URLTagFragmentGenerator</A>&nbsp;urlTagFragmentGenerator)</PRE>
<DL>
<DD>Creates an HTML image map.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>name</CODE> - the map name (<code>null</code> not permitted).<DD><CODE>info</CODE> - the chart rendering info (<code>null</code> not permitted).<DD><CODE>toolTipTagFragmentGenerator</CODE> - the tool tip generator.<DD><CODE>urlTagFragmentGenerator</CODE> - the url generator.
<DT><B>Returns:</B><DD>the map tag.</DL>
</DD>
</DL>
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