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<!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 11:26:57 BST 2003 --><TITLE>ValueAxis (JFreeChart Class Library (version 0.9.12))</TITLE><META NAME="keywords" CONTENT="org.jfree.chart.axis.ValueAxis,ValueAxis class"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../stylesheet.css" TITLE="Style"></HEAD><SCRIPT>function asd(){parent.document.title="ValueAxis (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/axis/TickUnits.html"><B>PREV CLASS</B></A> NEXT CLASS</FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../index.html" TARGET="_top"><B>FRAMES</B></A> <A HREF="ValueAxis.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 | <A HREF="#field_summary">FIELD</A> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: <A HREF="#field_detail">FIELD</A> | <A HREF="#constructor_detail">CONSTR</A> | <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.axis</FONT><BR>Class ValueAxis</H2><PRE>java.lang.Object | +--<A HREF="../../../../org/jfree/chart/axis/Axis.html">org.jfree.chart.axis.Axis</A> | +--<B>org.jfree.chart.axis.ValueAxis</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../../org/jfree/chart/axis/AxisConstants.html">AxisConstants</A>, java.lang.Cloneable, org.jfree.util.PublicCloneable, java.io.Serializable</DD></DL><DL><DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../../org/jfree/chart/axis/DateAxis.html">DateAxis</A>, <A HREF="../../../../org/jfree/chart/axis/NumberAxis.html">NumberAxis</A></DD></DL><HR><DL><DT>public abstract class <B>ValueAxis</B><DT>extends <A HREF="../../../../org/jfree/chart/axis/Axis.html">Axis</A><DT>implements java.lang.Cloneable, org.jfree.util.PublicCloneable, java.io.Serializable</DL><P>The base class for axes that display value data, where values are measured using the <code>double</code> primitive. The two key subclasses are <A HREF="../../../../org/jfree/chart/axis/DateAxis.html"><CODE>DateAxis</CODE></A> and <A HREF="../../../../org/jfree/chart/axis/NumberAxis.html"><CODE>NumberAxis</CODE></A>.<P><P><DL><DT><B>Author:</B></DT> <DD>David Gilbert</DD><DT><B>See Also:</B><DD><A HREF="../../../../serialized-form.html" TARGET="org.jfree.chart.axis.ValueAxis">Serialized Form</A></DL><HR><P><!-- ======== NESTED CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><A NAME="field_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Field Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/ValueAxis.html#DEFAULT_AUTO_RANGE">DEFAULT_AUTO_RANGE</A></B></CODE><BR> The default auto-range value.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static double</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/ValueAxis.html#DEFAULT_AUTO_RANGE_MINIMUM_SIZE">DEFAULT_AUTO_RANGE_MINIMUM_SIZE</A></B></CODE><BR> The default minimum auto range.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/ValueAxis.html#DEFAULT_AUTO_TICK_UNIT_SELECTION">DEFAULT_AUTO_TICK_UNIT_SELECTION</A></B></CODE><BR> The default auto-tick-unit-selection value.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static java.awt.Color</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/ValueAxis.html#DEFAULT_AXIS_LINE_PAINT">DEFAULT_AXIS_LINE_PAINT</A></B></CODE><BR> The default axis line paint.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static java.awt.Stroke</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/ValueAxis.html#DEFAULT_AXIS_LINE_STROKE">DEFAULT_AXIS_LINE_STROKE</A></B></CODE><BR> The default axis line stroke.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/ValueAxis.html#DEFAULT_INVERTED">DEFAULT_INVERTED</A></B></CODE><BR> The default inverted flag setting.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static double</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/ValueAxis.html#DEFAULT_LOWER_BOUND">DEFAULT_LOWER_BOUND</A></B></CODE><BR> The default lower bound for the axis.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static double</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/ValueAxis.html#DEFAULT_LOWER_MARGIN">DEFAULT_LOWER_MARGIN</A></B></CODE><BR> The default value for the lower margin (0.05 = 5%).</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static <A HREF="../../../../org/jfree/data/Range.html">Range</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/ValueAxis.html#DEFAULT_RANGE">DEFAULT_RANGE</A></B></CODE><BR> The default axis range.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static double</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/ValueAxis.html#DEFAULT_UPPER_BOUND">DEFAULT_UPPER_BOUND</A></B></CODE><BR> The default upper bound for the axis.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static double</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/ValueAxis.html#DEFAULT_UPPER_MARGIN">DEFAULT_UPPER_MARGIN</A></B></CODE><BR> The default value for the upper margin (0.05 = 5%).</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/ValueAxis.html#MAXIMUM_TICK_COUNT">MAXIMUM_TICK_COUNT</A></B></CODE><BR> The maximum tick count.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected double</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/ValueAxis.html#reservedForAxisLabel">reservedForAxisLabel</A></B></CODE><BR> A temporary record of the amount of space reserved for the axis label.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected double</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/ValueAxis.html#reservedForTickLabels">reservedForTickLabels</A></B></CODE><BR> A temporary record of the amount of space reserved for the tick labels.</TD></TR></TABLE> <A NAME="fields_inherited_from_class_org.jfree.chart.axis.AxisConstants"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Fields inherited from interface org.jfree.chart.axis.<A HREF="../../../../org/jfree/chart/axis/AxisConstants.html">AxisConstants</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../../org/jfree/chart/axis/AxisConstants.html#DEFAULT_AXIS_LABEL_FONT">DEFAULT_AXIS_LABEL_FONT</A>, <A HREF="../../../../org/jfree/chart/axis/AxisConstants.html#DEFAULT_AXIS_LABEL_INSETS">DEFAULT_AXIS_LABEL_INSETS</A>, <A HREF="../../../../org/jfree/chart/axis/AxisConstants.html#DEFAULT_AXIS_LABEL_PAINT">DEFAULT_AXIS_LABEL_PAINT</A>, <A HREF="../../../../org/jfree/chart/axis/AxisConstants.html#DEFAULT_AXIS_VISIBLE">DEFAULT_AXIS_VISIBLE</A>, <A HREF="../../../../org/jfree/chart/axis/AxisConstants.html#DEFAULT_TICK_LABEL_FONT">DEFAULT_TICK_LABEL_FONT</A>, <A HREF="../../../../org/jfree/chart/axis/AxisConstants.html#DEFAULT_TICK_LABEL_INSETS">DEFAULT_TICK_LABEL_INSETS</A>, <A HREF="../../../../org/jfree/chart/axis/AxisConstants.html#DEFAULT_TICK_LABEL_PAINT">DEFAULT_TICK_LABEL_PAINT</A>, <A HREF="../../../../org/jfree/chart/axis/AxisConstants.html#DEFAULT_TICK_LABELS_VISIBLE">DEFAULT_TICK_LABELS_VISIBLE</A>, <A HREF="../../../../org/jfree/chart/axis/AxisConstants.html#DEFAULT_TICK_MARK_INSIDE_LENGTH">DEFAULT_TICK_MARK_INSIDE_LENGTH</A>, <A HREF="../../../../org/jfree/chart/axis/AxisConstants.html#DEFAULT_TICK_MARK_OUTSIDE_LENGTH">DEFAULT_TICK_MARK_OUTSIDE_LENGTH</A>, <A HREF="../../../../org/jfree/chart/axis/AxisConstants.html#DEFAULT_TICK_MARK_PAINT">DEFAULT_TICK_MARK_PAINT</A>, <A HREF="../../../../org/jfree/chart/axis/AxisConstants.html#DEFAULT_TICK_MARK_STROKE">DEFAULT_TICK_MARK_STROKE</A>, <A HREF="../../../../org/jfree/chart/axis/AxisConstants.html#DEFAULT_TICK_MARKS_VISIBLE">DEFAULT_TICK_MARKS_VISIBLE</A></CODE></TD></TR></TABLE> <!-- ======== CONSTRUCTOR SUMMARY ======== --><A NAME="constructor_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Constructor Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected </CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/ValueAxis.html#ValueAxis(java.lang.String, org.jfree.chart.axis.TickUnits)">ValueAxis</A></B>(java.lang.String label, <A HREF="../../../../org/jfree/chart/axis/TickUnits.html">TickUnits</A> standardTickUnits)</CODE><BR> Constructs a value axis.</TD></TR></TABLE> <!-- ========== 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>protected abstract void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/ValueAxis.html#autoAdjustRange()">autoAdjustRange</A></B>()</CODE><BR> Automatically determines the maximum and minimum values on the axis to 'fit' the data.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/ValueAxis.html#centerRange(double)">centerRange</A></B>(double value)</CODE><BR> Centers the axis range about the specified value.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.lang.Object</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/ValueAxis.html#clone()">clone</A></B>()</CODE><BR> Returns a clone of the object.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/ValueAxis.html#drawAxisLine(java.awt.Graphics2D, double, java.awt.geom.Rectangle2D, org.jfree.ui.RectangleEdge)">drawAxisLine</A></B>(java.awt.Graphics2D g2, double cursor, java.awt.geom.Rectangle2D dataArea, org.jfree.ui.RectangleEdge edge)</CODE><BR> Draws an axis line at the current cursor position and edge.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/ValueAxis.html#equals(java.lang.Object)">equals</A></B>(java.lang.Object obj)</CODE><BR> Tests this axis for equality with another object.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> double</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/ValueAxis.html#getAutoRangeMinimumSize()">getAutoRangeMinimumSize</A></B>()</CODE><BR> Returns the minimum size allowed for the axis range when it is automatically calculated.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/ValueAxis.html#getAutoTickIndex()">getAutoTickIndex</A></B>()</CODE><BR>⌨️ 快捷键说明
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