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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 11:26:56 BST 2003 --><TITLE>Axis (JFreeChart Class Library (version 0.9.12))</TITLE><META NAME="keywords" CONTENT="org.jfree.chart.axis.Axis,Axis class"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../stylesheet.css" TITLE="Style"></HEAD><SCRIPT>function asd(){parent.document.title="Axis (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"> PREV CLASS <A HREF="../../../../org/jfree/chart/axis/AxisLocation.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="Axis.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 | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | <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 Axis</H2><PRE>java.lang.Object | +--<B>org.jfree.chart.axis.Axis</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../../org/jfree/chart/axis/AxisConstants.html">AxisConstants</A>, java.lang.Cloneable, java.io.Serializable</DD></DL><DL><DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../../org/jfree/chart/axis/CategoryAxis.html">CategoryAxis</A>, <A HREF="../../../../org/jfree/chart/axis/ValueAxis.html">ValueAxis</A></DD></DL><HR><DL><DT>public abstract class <B>Axis</B><DT>extends java.lang.Object<DT>implements <A HREF="../../../../org/jfree/chart/axis/AxisConstants.html">AxisConstants</A>, java.lang.Cloneable, java.io.Serializable</DL><P>The base class for all axes in JFreeChart. Subclasses are divided into those that display values (<A HREF="../../../../org/jfree/chart/axis/ValueAxis.html"><CODE>ValueAxis</CODE></A>) and those that display categories (<A HREF="../../../../org/jfree/chart/axis/CategoryAxis.html"><CODE>CategoryAxis</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.Axis">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></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/Axis.html#Axis(java.lang.String)">Axis</A></B>(java.lang.String label)</CODE><BR> Constructs an axis, using default values where necessary.</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> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/Axis.html#addChangeListener(org.jfree.chart.event.AxisChangeListener)">addChangeListener</A></B>(<A HREF="../../../../org/jfree/chart/event/AxisChangeListener.html">AxisChangeListener</A> listener)</CODE><BR> Registers an object for notification of changes to the axis.</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/Axis.html#clone()">clone</A></B>()</CODE><BR> Returns a clone of the axis.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>abstract void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/Axis.html#configure()">configure</A></B>()</CODE><BR> Configures the axis to work with the current plot.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>abstract double</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/Axis.html#draw(java.awt.Graphics2D, double, java.awt.geom.Rectangle2D, java.awt.geom.Rectangle2D, org.jfree.ui.RectangleEdge)">draw</A></B>(java.awt.Graphics2D g2, double cursor, java.awt.geom.Rectangle2D plotArea, java.awt.geom.Rectangle2D dataArea, org.jfree.ui.RectangleEdge edge)</CODE><BR> Draws the axis on a Java 2D graphics device (such as the screen or a printer).</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/Axis.html#drawLabel(java.lang.String, java.awt.Graphics2D, double, java.awt.geom.Rectangle2D, java.awt.geom.Rectangle2D, org.jfree.ui.RectangleEdge)">drawLabel</A></B>(java.lang.String label, java.awt.Graphics2D g2, double cursor, java.awt.geom.Rectangle2D plotArea, java.awt.geom.Rectangle2D dataArea, org.jfree.ui.RectangleEdge edge)</CODE><BR> Draws the axis label.</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/Axis.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/Axis.html#getFixedDimension()">getFixedDimension</A></B>()</CODE><BR> Returns the fixed dimension for the axis.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.lang.String</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/Axis.html#getLabel()">getLabel</A></B>()</CODE><BR> Returns the label for the axis.</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/Axis.html#getLabelAngle()">getLabelAngle</A></B>()</CODE><BR> Returns the angle of the axis label.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected java.awt.geom.Rectangle2D</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/Axis.html#getLabelEnclosure(java.awt.Graphics2D, org.jfree.ui.RectangleEdge)">getLabelEnclosure</A></B>(java.awt.Graphics2D g2, org.jfree.ui.RectangleEdge edge)</CODE><BR> Returns a rectangle that encloses the axis label.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.awt.Font</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/Axis.html#getLabelFont()">getLabelFont</A></B>()</CODE><BR> Returns the font for the axis label.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.awt.Insets</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/Axis.html#getLabelInsets()">getLabelInsets</A></B>()</CODE><BR> Returns the insets for the label (that is, the amount of blank space that should be left around the label).</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.awt.Paint</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/Axis.html#getLabelPaint()">getLabelPaint</A></B>()</CODE><BR> Returns the color/shade used to draw 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/Axis.html#getMaxTickLabelWidth(java.awt.Graphics2D, java.awt.geom.Rectangle2D)">getMaxTickLabelWidth</A></B>(java.awt.Graphics2D g2, java.awt.geom.Rectangle2D plotArea)</CODE><BR> Returns the maximum width of the ticks in the working list (that is set up by refreshTicks()).</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../../org/jfree/chart/plot/Plot.html">Plot</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/Axis.html#getPlot()">getPlot</A></B>()</CODE><BR> Returns the plot that the axis is assigned to.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.awt.Font</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/Axis.html#getTickLabelFont()">getTickLabelFont</A></B>()</CODE><BR> Returns the font used for the tick labels (if showing).</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.awt.Insets</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/Axis.html#getTickLabelInsets()">getTickLabelInsets</A></B>()</CODE><BR> Returns the insets for the tick labels.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.awt.Paint</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/Axis.html#getTickLabelPaint()">getTickLabelPaint</A></B>()</CODE><BR> Returns the color/shade used for the tick labels.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> float</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/Axis.html#getTickMarkInsideLength()">getTickMarkInsideLength</A></B>()</CODE><BR> Returns the inside length of the tick marks.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> float</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/Axis.html#getTickMarkOutsideLength()">getTickMarkOutsideLength</A></B>()</CODE><BR> Returns the outside length of the tick marks.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.awt.Paint</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/Axis.html#getTickMarkPaint()">getTickMarkPaint</A></B>()</CODE><BR> Returns the paint used to draw tick marks (if they are showing).</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.awt.Stroke</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/Axis.html#getTickMarkStroke()">getTickMarkStroke</A></B>()</CODE><BR> Returns the pen/brush used to draw tick marks (if they are showing).</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.util.List</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/Axis.html#getTicks()">getTicks</A></B>()</CODE><BR> Returns the current list of ticks.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected abstract boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/axis/Axis.html#isCompatiblePlot(org.jfree.chart.plot.Plot)">isCompatiblePlot</A></B>(<A HREF="../../../../org/jfree/chart/plot/Plot.html">Plot</A> plot)</CODE><BR> Returns true if the plot is compatible with the axis.</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/Axis.html#isTickLabelsVisible()">isTickLabelsVisible</A></B>()</CODE><BR> Returns a flag indicating whether or not the tick labels are visible.</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/Axis.html#isTickMarksVisible()">isTickMarksVisible</A></B>()</CODE><BR> Returns the flag that indicates whether or not the tick marks are showing.</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/Axis.html#isVisible()">isVisible</A></B>()</CODE>⌨️ 快捷键说明
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