chartutilities.html

JFreeChart 9.20的文档 需要用JAVA在网页上做统计图的东东

                         float quality,
                         java.awt.image.BufferedImage&nbsp;image)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Writes a <CODE>BufferedImage</CODE> to an output stream in JPEG format.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/jfree/chart/ChartUtilities.html#writeBufferedImageAsPNG(java.io.OutputStream, java.awt.image.BufferedImage)">writeBufferedImageAsPNG</A></B>(java.io.OutputStream&nbsp;out,
                        java.awt.image.BufferedImage&nbsp;image)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Writes a <CODE>BufferedImage</CODE> to an output stream in PNG format.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/jfree/chart/ChartUtilities.html#writeBufferedImageAsPNG(java.io.OutputStream, java.awt.image.BufferedImage, boolean, int)">writeBufferedImageAsPNG</A></B>(java.io.OutputStream&nbsp;out,
                        java.awt.image.BufferedImage&nbsp;image,
                        boolean&nbsp;encodeAlpha,
                        int&nbsp;compression)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Writes a <CODE>BufferedImage</CODE> to an output stream in PNG format.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/jfree/chart/ChartUtilities.html#writeChartAsJPEG(java.io.OutputStream, float, org.jfree.chart.JFreeChart, int, int)">writeChartAsJPEG</A></B>(java.io.OutputStream&nbsp;out,
                 float&nbsp;quality,
                 <A HREF="../../../org/jfree/chart/JFreeChart.html" title="class in org.jfree.chart">JFreeChart</A>&nbsp;chart,
                 int&nbsp;width,
                 int&nbsp;height)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Writes a chart to an output stream in JPEG format.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/jfree/chart/ChartUtilities.html#writeChartAsJPEG(java.io.OutputStream, float, org.jfree.chart.JFreeChart, int, int, org.jfree.chart.ChartRenderingInfo)">writeChartAsJPEG</A></B>(java.io.OutputStream&nbsp;out,
                 float&nbsp;quality,
                 <A HREF="../../../org/jfree/chart/JFreeChart.html" title="class in org.jfree.chart">JFreeChart</A>&nbsp;chart,
                 int&nbsp;width,
                 int&nbsp;height,
                 <A HREF="../../../org/jfree/chart/ChartRenderingInfo.html" title="class in org.jfree.chart">ChartRenderingInfo</A>&nbsp;info)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Writes a chart to an output stream in JPEG format.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/jfree/chart/ChartUtilities.html#writeChartAsJPEG(java.io.OutputStream, org.jfree.chart.JFreeChart, int, int)">writeChartAsJPEG</A></B>(java.io.OutputStream&nbsp;out,
                 <A HREF="../../../org/jfree/chart/JFreeChart.html" title="class in org.jfree.chart">JFreeChart</A>&nbsp;chart,
                 int&nbsp;width,
                 int&nbsp;height)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Writes a chart to an output stream in JPEG format.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/jfree/chart/ChartUtilities.html#writeChartAsJPEG(java.io.OutputStream, org.jfree.chart.JFreeChart, int, int, org.jfree.chart.ChartRenderingInfo)">writeChartAsJPEG</A></B>(java.io.OutputStream&nbsp;out,
                 <A HREF="../../../org/jfree/chart/JFreeChart.html" title="class in org.jfree.chart">JFreeChart</A>&nbsp;chart,
                 int&nbsp;width,
                 int&nbsp;height,
                 <A HREF="../../../org/jfree/chart/ChartRenderingInfo.html" title="class in org.jfree.chart">ChartRenderingInfo</A>&nbsp;info)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Writes a chart to an output stream in JPEG format.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/jfree/chart/ChartUtilities.html#writeChartAsPNG(java.io.OutputStream, org.jfree.chart.JFreeChart, int, int)">writeChartAsPNG</A></B>(java.io.OutputStream&nbsp;out,
                <A HREF="../../../org/jfree/chart/JFreeChart.html" title="class in org.jfree.chart">JFreeChart</A>&nbsp;chart,
                int&nbsp;width,
                int&nbsp;height)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Writes a chart to an output stream in PNG format.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/jfree/chart/ChartUtilities.html#writeChartAsPNG(java.io.OutputStream, org.jfree.chart.JFreeChart, int, int, boolean, int)">writeChartAsPNG</A></B>(java.io.OutputStream&nbsp;out,
                <A HREF="../../../org/jfree/chart/JFreeChart.html" title="class in org.jfree.chart">JFreeChart</A>&nbsp;chart,
                int&nbsp;width,
                int&nbsp;height,
                boolean&nbsp;encodeAlpha,
                int&nbsp;compression)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Writes a chart to an output stream in PNG format.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/jfree/chart/ChartUtilities.html#writeChartAsPNG(java.io.OutputStream, org.jfree.chart.JFreeChart, int, int, org.jfree.chart.ChartRenderingInfo)">writeChartAsPNG</A></B>(java.io.OutputStream&nbsp;out,
                <A HREF="../../../org/jfree/chart/JFreeChart.html" title="class in org.jfree.chart">JFreeChart</A>&nbsp;chart,
                int&nbsp;width,
                int&nbsp;height,
                <A HREF="../../../org/jfree/chart/ChartRenderingInfo.html" title="class in org.jfree.chart">ChartRenderingInfo</A>&nbsp;info)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Writes a chart to an output stream in PNG format.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/jfree/chart/ChartUtilities.html#writeChartAsPNG(java.io.OutputStream, org.jfree.chart.JFreeChart, int, int, org.jfree.chart.ChartRenderingInfo, boolean, int)">writeChartAsPNG</A></B>(java.io.OutputStream&nbsp;out,
                <A HREF="../../../org/jfree/chart/JFreeChart.html" title="class in org.jfree.chart">JFreeChart</A>&nbsp;chart,
                int&nbsp;width,
                int&nbsp;height,
                <A HREF="../../../org/jfree/chart/ChartRenderingInfo.html" title="class in org.jfree.chart">ChartRenderingInfo</A>&nbsp;info,
                boolean&nbsp;encodeAlpha,
                int&nbsp;compression)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Writes a chart to an output stream in PNG format.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/jfree/chart/ChartUtilities.html#writeImageMap(java.io.PrintWriter, java.lang.String, org.jfree.chart.ChartRenderingInfo)">writeImageMap</A></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)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Writes an image map to an output stream.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/jfree/chart/ChartUtilities.html#writeImageMap(java.io.PrintWriter, java.lang.String, org.jfree.chart.ChartRenderingInfo, boolean)">writeImageMap</A></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)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Writes an image map to an output stream.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/jfree/chart/ChartUtilities.html#writeImageMap(java.io.PrintWriter, java.lang.String, org.jfree.chart.ChartRenderingInfo, org.jfree.chart.imagemap.ToolTipTagFragmentGenerator, org.jfree.chart.imagemap.URLTagFragmentGenerator)">writeImageMap</A></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)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Writes an image map to an output stream.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/jfree/chart/ChartUtilities.html#writeScaledChartAsPNG(java.io.OutputStream, org.jfree.chart.JFreeChart, int, int, int, int)">writeScaledChartAsPNG</A></B>(java.io.OutputStream&nbsp;out,
                      <A HREF="../../../org/jfree/chart/JFreeChart.html" title="class in org.jfree.chart">JFreeChart</A>&nbsp;chart,
                      int&nbsp;width,
                      int&nbsp;height,
                      int&nbsp;widthScaleFactor,
                      int&nbsp;heightScaleFactor)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Writes a scaled version of a chart to an output stream in PNG format.</TD>
</TR>
</TABLE>
&nbsp;<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TD><B>Methods inherited from class java.lang.Object</B></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD>
</TR>
</TABLE>
&nbsp;
<P>

<!-- ============ FIELD DETAIL =========== -->


<!-- ========= CONSTRUCTOR DETAIL ======== -->

<A NAME="constructor_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TD COLSPAN=1><FONT SIZE="+2">
<B>Constructor Detail</B></FONT></TD>
</TR>
</TABLE>

<A NAME="ChartUtilities()"><!-- --></A><H3>
ChartUtilities</H3>
<PRE>
public <B>ChartUtilities</B>()</PRE>
<DL>
</DL>

<!-- ============ METHOD DETAIL ========== -->

<A NAME="method_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TD COLSPAN=1><FONT SIZE="+2">
<B>Method Detail</B></FONT></TD>
</TR>
</TABLE>

<A NAME="writeChartAsPNG(java.io.OutputStream, org.jfree.chart.JFreeChart, int, int)"><!-- --></A><H3>
writeChartAsPNG</H3>
<PRE>
public static void <B>writeChartAsPNG</B>(java.io.OutputStream&nbsp;out,
                                   <A HREF="../../../org/jfree/chart/JFreeChart.html" title="class in org.jfree.chart">JFreeChart</A>&nbsp;chart,
                                   int&nbsp;width,
                                   int&nbsp;height)
                            throws java.io.IOException</PRE>
<DL>
<DD>Writes a chart 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>chart</CODE> - the chart (<code>null</code> not permitted).<DD><CODE>width</CODE> - the image width.<DD><CODE>height</CODE> - the image height.
<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE> - if there are any I/O errors.</DL>
</DD>
</DL>
<HR>

<A NAME="writeChartAsPNG(java.io.OutputStream, org.jfree.chart.JFreeChart, int, int, boolean, int)"><!-- --></A><H3>
writeChartAsPNG</H3>
<PRE>
public static void <B>writeChartAsPNG</B>(java.io.OutputStream&nbsp;out,
                                   <A HREF="../../../org/jfree/chart/JFreeChart.html" title="class in org.jfree.chart">JFreeChart</A>&nbsp;chart,
                                   int&nbsp;width,
                                   int&nbsp;height,
                                   boolean&nbsp;encodeAlpha,
                                   int&nbsp;compression)
                            throws java.io.IOException</PRE>
<DL>
<DD>Writes a chart 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>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>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="writeChartAsPNG(java.io.OutputStream, org.jfree.chart.JFreeChart, int, int, org.jfree.chart.ChartRenderingInfo)"><!-- --></A><H3>
writeChartAsPNG</H3>
<PRE>
public static void <B>writeChartAsPNG</B>(java.io.OutputStream&nbsp;out,
                                   <A HREF="../../../org/jfree/chart/JFreeChart.html" title="class in org.jfree.chart">JFreeChart</A>&nbsp;chart,
                                   int&nbsp;width,
                                   int&nbsp;height,
                                   <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 a chart to an output stream in PNG 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>out</CODE> - the output stream (<code>null</code> not permitted).<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).