📄 chartutilities.html
字号:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN""http://www.w3.org/TR/REC-html40/loose.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc on Thu Sep 11 11:26:56 BST 2003 --><TITLE>ChartUtilities (JFreeChart Class Library (version 0.9.12))</TITLE><META NAME="keywords" CONTENT="org.jfree.chart.ChartUtilities,ChartUtilities class"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"></HEAD><SCRIPT>function asd(){parent.document.title="ChartUtilities (JFreeChart Class Library (version 0.9.12))";}</SCRIPT><BODY BGCOLOR="white" onload="asd();"><!-- ========== START OF NAVBAR ========== --><A NAME="navbar_top"><!-- --></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0"><TR><TD COLSPAN=3 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3"> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../org/jfree/chart/ChartRenderingInfo.html"><B>PREV CLASS</B></A> <A HREF="../../../org/jfree/chart/ClipPath.html"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../index.html" TARGET="_top"><B>FRAMES</B></A> <A HREF="ChartUtilities.html" TARGET="_top"><B>NO FRAMES</B></A> <SCRIPT> <!-- if(window==top) { document.writeln('<A HREF="../../../allclasses-noframe.html" TARGET=""><B>All Classes</B></A>'); } //--></SCRIPT><NOSCRIPT><A HREF="../../../allclasses-noframe.html" TARGET=""><B>All Classes</B></A></NOSCRIPT></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: NESTED | FIELD | CONSTR | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | CONSTR | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><!-- =========== END OF NAVBAR =========== --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">org.jfree.chart</FONT><BR>Class ChartUtilities</H2><PRE>java.lang.Object | +--<B>org.jfree.chart.ChartUtilities</B></PRE><HR><DL><DT>public class <B>ChartUtilities</B><DT>extends java.lang.Object</DL><P>Utility methods for JFreeChart. Includes methods for converting charts to image formats (PNG and JPEG) plus creating simple HTML image maps.<P><P><DL><DT><B>Author:</B></DT> <DD>David Gilbert</DD></DL><HR><P><!-- ======== NESTED CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><!-- ======== CONSTRUCTOR SUMMARY ======== --><!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Method Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static byte[]</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/jfree/chart/ChartUtilities.html#encodeAsPNG(java.awt.image.BufferedImage)">encodeAsPNG</A></B>(java.awt.image.BufferedImage image)</CODE><BR> Encodes the BufferedImage to PNG format.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static byte[]</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/jfree/chart/ChartUtilities.html#encodeAsPNG(java.awt.image.BufferedImage, boolean, int)">encodeAsPNG</A></B>(java.awt.image.BufferedImage image, boolean encodeAlpha, int compression)</CODE><BR> Encodes the BufferedImage to PNG format.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/jfree/chart/ChartUtilities.html#saveChartAsJPEG(java.io.File, float, org.jfree.chart.JFreeChart, int, int)">saveChartAsJPEG</A></B>(java.io.File file, float quality, <A HREF="../../../org/jfree/chart/JFreeChart.html">JFreeChart</A> chart, int width, int height)</CODE><BR> Saves the chart as a JPEG format image file.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/jfree/chart/ChartUtilities.html#saveChartAsJPEG(java.io.File, float, org.jfree.chart.JFreeChart, int, int, org.jfree.chart.ChartRenderingInfo)">saveChartAsJPEG</A></B>(java.io.File file, float quality, <A HREF="../../../org/jfree/chart/JFreeChart.html">JFreeChart</A> chart, int width, int height, <A HREF="../../../org/jfree/chart/ChartRenderingInfo.html">ChartRenderingInfo</A> info)</CODE><BR> Saves the chart as a JPEG format image file.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/jfree/chart/ChartUtilities.html#saveChartAsJPEG(java.io.File, org.jfree.chart.JFreeChart, int, int)">saveChartAsJPEG</A></B>(java.io.File file, <A HREF="../../../org/jfree/chart/JFreeChart.html">JFreeChart</A> chart, int width, int height)</CODE><BR> Saves the chart as a JPEG format image file.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/jfree/chart/ChartUtilities.html#saveChartAsJPEG(java.io.File, org.jfree.chart.JFreeChart, int, int, org.jfree.chart.ChartRenderingInfo)">saveChartAsJPEG</A></B>(java.io.File file, <A HREF="../../../org/jfree/chart/JFreeChart.html">JFreeChart</A> chart, int width, int height, <A HREF="../../../org/jfree/chart/ChartRenderingInfo.html">ChartRenderingInfo</A> info)</CODE><BR> Saves the chart as a JPEG format image file.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/jfree/chart/ChartUtilities.html#saveChartAsPNG(java.io.File, org.jfree.chart.JFreeChart, int, int)">saveChartAsPNG</A></B>(java.io.File file, <A HREF="../../../org/jfree/chart/JFreeChart.html">JFreeChart</A> chart, int width, int height)</CODE><BR> Saves the chart as a PNG format image file.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/jfree/chart/ChartUtilities.html#saveChartAsPNG(java.io.File, org.jfree.chart.JFreeChart, int, int, org.jfree.chart.ChartRenderingInfo)">saveChartAsPNG</A></B>(java.io.File file, <A HREF="../../../org/jfree/chart/JFreeChart.html">JFreeChart</A> chart, int width, int height, <A HREF="../../../org/jfree/chart/ChartRenderingInfo.html">ChartRenderingInfo</A> info)</CODE><BR> Saves the chart as a PNG format image file.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/jfree/chart/ChartUtilities.html#saveChartAsPNG(java.io.File, org.jfree.chart.JFreeChart, int, int, org.jfree.chart.ChartRenderingInfo, boolean, int)">saveChartAsPNG</A></B>(java.io.File file, <A HREF="../../../org/jfree/chart/JFreeChart.html">JFreeChart</A> chart, int width, int height, <A HREF="../../../org/jfree/chart/ChartRenderingInfo.html">ChartRenderingInfo</A> info, boolean encodeAlpha, int compression)</CODE><BR> Saves the chart as a PNG format image file.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/jfree/chart/ChartUtilities.html#writeBufferedImageAsJPEG(java.io.OutputStream, java.awt.image.BufferedImage)">writeBufferedImageAsJPEG</A></B>(java.io.OutputStream out, java.awt.image.BufferedImage image)</CODE><BR> Writes the BufferedImage to the output stream in JPEG format.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/jfree/chart/ChartUtilities.html#writeBufferedImageAsJPEG(java.io.OutputStream, float, java.awt.image.BufferedImage)">writeBufferedImageAsJPEG</A></B>(java.io.OutputStream out, float quality, java.awt.image.BufferedImage image)</CODE><BR> Writes the BufferedImage to the output stream in JPEG format.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static 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 out, java.awt.image.BufferedImage image)</CODE><BR> Writes the BufferedImage to the output stream in PNG format.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static 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 out, java.awt.image.BufferedImage image,⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -