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--><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">org.jfree.chart</FONT><BR>Class CrosshairInfo</H2><PRE>java.lang.Object | +--<B>org.jfree.chart.CrosshairInfo</B></PRE><HR><DL><DT>public class <B>CrosshairInfo</B><DT>extends java.lang.Object</DL><P>Maintains information about crosshairs on a plot.<P><P><DL><DT><B>Author:</B></DT> <DD>David Gilbert</DD></DL><HR><P><!-- ======== NESTED CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><!-- ======== 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><CODE><B><A HREF="../../../org/jfree/chart/CrosshairInfo.html#CrosshairInfo()">CrosshairInfo</A></B>()</CODE><BR> Default constructor.</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> double</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/jfree/chart/CrosshairInfo.html#getCrosshairX()">getCrosshairX</A></B>()</CODE><BR> Get the x-value for the crosshair point.</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/CrosshairInfo.html#getCrosshairY()">getCrosshairY</A></B>()</CODE><BR> Get the y-value for the crosshair point.</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/CrosshairInfo.html#setAnchorX(double)">setAnchorX</A></B>(double x)</CODE><BR> Set the x-value for the anchor point.</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/CrosshairInfo.html#setAnchorY(double)">setAnchorY</A></B>(double y)</CODE><BR> Set the y-value for the anchor point.</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/CrosshairInfo.html#setCrosshairDistance(double)">setCrosshairDistance</A></B>(double distance)</CODE><BR> Sets the distance.</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/CrosshairInfo.html#updateCrosshairPoint(double, double)">updateCrosshairPoint</A></B>(double candidateX, double candidateY)</CODE><BR> Evaluates a data point and if it is the closest to the anchor point it becomes the new crosshair point.</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/CrosshairInfo.html#updateCrosshairX(double)">updateCrosshairX</A></B>(double candidateX)</CODE><BR> Evaluates an x-value and if it is the closest to the anchor point it becomes the new crosshair point.</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/CrosshairInfo.html#updateCrosshairY(double)">updateCrosshairY</A></B>(double candidateY)</CODE><BR> Evaluates a y-value and if it is the closest to the anchor point it becomes the new crosshair point.</TD></TR></TABLE> <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><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> <P><!-- ============ FIELD DETAIL =========== --><!-- ========= CONSTRUCTOR DETAIL ======== --><A NAME="constructor_detail"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=1><FONT SIZE="+2"><B>Constructor Detail</B></FONT></TD></TR></TABLE><A NAME="CrosshairInfo()"><!-- --></A><H3>CrosshairInfo</H3><PRE>public <B>CrosshairInfo</B>()</PRE><DL><DD>Default constructor.<P></DL><!-- ============ METHOD DETAIL ========== --><A NAME="method_detail"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=1><FONT SIZE="+2"><B>Method Detail</B></FONT></TD></TR></TABLE><A NAME="setCrosshairDistance(double)"><!-- --></A><H3>setCrosshairDistance</H3><PRE>public void <B>setCrosshairDistance</B>(double distance)</PRE><DL><DD>Sets the distance.<P><DD><DL><DT><B>Parameters:</B><DD><CODE>distance</CODE> - the distance.</DL></DD></DL><HR><A NAME="updateCrosshairPoint(double, double)"><!-- --></A><H3>updateCrosshairPoint</H3><PRE>public void <B>updateCrosshairPoint</B>(double candidateX, double candidateY)</PRE><DL><DD>Evaluates a data point and if it is the closest to the anchor point it becomes the new crosshair point. <P> To understand this method, you need to know the context in which it will be called. An instance of this class is passed to an XYItemRenderer as each data point is plotted. As the point is plotted, it is passed to this method to see if it should be the new crosshair point.<P><DD><DL><DT><B>Parameters:</B><DD><CODE>candidateX</CODE> - x position of candidate for the new crosshair point.<DD><CODE>candidateY</CODE> - y position of candidate for the new crosshair point.</DL></DD></DL><HR><A NAME="updateCrosshairX(double)"><!-- --></A><H3>updateCrosshairX</H3><PRE>public void <B>updateCrosshairX</B>(double candidateX)</PRE><DL><DD>Evaluates an x-value and if it is the closest to the anchor point it becomes the new crosshair point. <P> Used in cases where only the x-axis is numerical.<P><DD><DL><DT><B>Parameters:</B><DD><CODE>candidateX</CODE> - x position of the candidate for the new crosshair point.</DL></DD></DL><HR><A NAME="updateCrosshairY(double)"><!-- --></A><H3>updateCrosshairY</H3><PRE>public void <B>updateCrosshairY</B>(double candidateY)</PRE><DL><DD>Evaluates a y-value and if it is the closest to the anchor point it becomes the new crosshair point. <P> Used in cases where only the y-axis is numerical.<P><DD><DL><DT><B>Parameters:</B><DD><CODE>candidateY</CODE> - y position of the candidate for the new crosshair point.</DL></DD></DL><HR><A NAME="setAnchorX(double)"><!-- --></A><H3>setAnchorX</H3><PRE>public void <B>setAnchorX</B>(double x)</PRE><DL><DD>Set the x-value for the anchor point.<P><DD><DL><DT><B>Parameters:</B><DD><CODE>x</CODE> - the x position.</DL></DD></DL><HR><A NAME="setAnchorY(double)"><!-- --></A><H3>setAnchorY</H3><PRE>public void <B>setAnchorY</B>(double y)</PRE><DL><DD>Set the y-value for the anchor point.<P><DD><DL><DT><B>Parameters:</B><DD><CODE>y</CODE> - the y position.</DL></DD></DL><HR><A NAME="getCrosshairX()"><!-- --></A><H3>getCrosshairX</H3><PRE>public double <B>getCrosshairX</B>()</PRE><DL><DD>Get the x-value for the crosshair point.<P><DD><DL><DT><B>Returns:</B><DD>the x position of the crosshair point.</DL></DD></DL><HR><A NAME="getCrosshairY()"><!-- --></A><H3>getCrosshairY</H3><PRE>public double <B>getCrosshairY</B>()</PRE><DL><DD>Get the y-value for the crosshair point.<P><DD><DL><DT><B>Returns:</B><DD>the y position of the crosshair point.</DL></DD></DL><!-- ========= END OF CLASS DATA ========= --><HR><!-- ========== START OF NAVBAR ========== --><A NAME="navbar_bottom"><!-- --></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0"><TR><TD COLSPAN=3 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_bottom_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/ClipPath.html"><B>PREV CLASS</B></A> <A HREF="../../../org/jfree/chart/DateTitle.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="CrosshairInfo.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></BODY></HTML>⌨️ 快捷键说明
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