categoryaxis.html

JFreeChart 9.20的文档 需要用JAVA在网页上做统计图的东东

<DT><B>Returns:</B><DD>the coordinate.</DL>
</DD>
</DL>
<HR>

<A NAME="getCategoryStart(int, int, java.awt.geom.Rectangle2D, org.jfree.ui.RectangleEdge)"><!-- --></A><H3>
getCategoryStart</H3>
<PRE>
public double <B>getCategoryStart</B>(int&nbsp;category,
                               int&nbsp;categoryCount,
                               java.awt.geom.Rectangle2D&nbsp;area,
                               org.jfree.ui.RectangleEdge&nbsp;edge)</PRE>
<DL>
<DD>Returns the starting coordinate for the specified category.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>category</CODE> - the category.<DD><CODE>categoryCount</CODE> - the number of categories.<DD><CODE>area</CODE> - the data area.<DD><CODE>edge</CODE> - the axis location.
<DT><B>Returns:</B><DD>the coordinate.</DL>
</DD>
</DL>
<HR>

<A NAME="getCategoryMiddle(int, int, java.awt.geom.Rectangle2D, org.jfree.ui.RectangleEdge)"><!-- --></A><H3>
getCategoryMiddle</H3>
<PRE>
public double <B>getCategoryMiddle</B>(int&nbsp;category,
                                int&nbsp;categoryCount,
                                java.awt.geom.Rectangle2D&nbsp;area,
                                org.jfree.ui.RectangleEdge&nbsp;edge)</PRE>
<DL>
<DD>Returns the middle coordinate for the specified category.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>category</CODE> - the category.<DD><CODE>categoryCount</CODE> - the number of categories.<DD><CODE>area</CODE> - the data area.<DD><CODE>edge</CODE> - the axis location.
<DT><B>Returns:</B><DD>the coordinate.</DL>
</DD>
</DL>
<HR>

<A NAME="getCategoryEnd(int, int, java.awt.geom.Rectangle2D, org.jfree.ui.RectangleEdge)"><!-- --></A><H3>
getCategoryEnd</H3>
<PRE>
public double <B>getCategoryEnd</B>(int&nbsp;category,
                             int&nbsp;categoryCount,
                             java.awt.geom.Rectangle2D&nbsp;area,
                             org.jfree.ui.RectangleEdge&nbsp;edge)</PRE>
<DL>
<DD>Returns the end coordinate for the specified category.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>category</CODE> - the category.<DD><CODE>categoryCount</CODE> - the number of categories.<DD><CODE>area</CODE> - the data area.<DD><CODE>edge</CODE> - the axis location.
<DT><B>Returns:</B><DD>the coordinate.</DL>
</DD>
</DL>
<HR>

<A NAME="calculateCategorySize(int, java.awt.geom.Rectangle2D, org.jfree.ui.RectangleEdge)"><!-- --></A><H3>
calculateCategorySize</H3>
<PRE>
protected double <B>calculateCategorySize</B>(int&nbsp;categoryCount,
                                       java.awt.geom.Rectangle2D&nbsp;area,
                                       org.jfree.ui.RectangleEdge&nbsp;edge)</PRE>
<DL>
<DD>Calculates the size (width or height, depending on the location of the axis) of a category.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>categoryCount</CODE> - the number of categories.<DD><CODE>area</CODE> - the area within which the categories will be drawn.<DD><CODE>edge</CODE> - the axis location.
<DT><B>Returns:</B><DD>the category size.</DL>
</DD>
</DL>
<HR>

<A NAME="calculateCategoryGapSize(int, java.awt.geom.Rectangle2D, org.jfree.ui.RectangleEdge)"><!-- --></A><H3>
calculateCategoryGapSize</H3>
<PRE>
protected double <B>calculateCategoryGapSize</B>(int&nbsp;categoryCount,
                                          java.awt.geom.Rectangle2D&nbsp;area,
                                          org.jfree.ui.RectangleEdge&nbsp;edge)</PRE>
<DL>
<DD>Calculates the size (width or height, depending on the location of the axis) of a category
 gap.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>categoryCount</CODE> - the number of categories.<DD><CODE>area</CODE> - the area within which the categories will be drawn.<DD><CODE>edge</CODE> - the axis location.
<DT><B>Returns:</B><DD>the category gap width.</DL>
</DD>
</DL>
<HR>

<A NAME="reserveSpace(java.awt.Graphics2D, org.jfree.chart.plot.Plot, java.awt.geom.Rectangle2D, org.jfree.ui.RectangleEdge, org.jfree.chart.axis.AxisSpace)"><!-- --></A><H3>
reserveSpace</H3>
<PRE>
public <A HREF="../../../../org/jfree/chart/axis/AxisSpace.html" title="class in org.jfree.chart.axis">AxisSpace</A> <B>reserveSpace</B>(java.awt.Graphics2D&nbsp;g2,
                              <A HREF="../../../../org/jfree/chart/plot/Plot.html" title="class in org.jfree.chart.plot">Plot</A>&nbsp;plot,
                              java.awt.geom.Rectangle2D&nbsp;plotArea,
                              org.jfree.ui.RectangleEdge&nbsp;edge,
                              <A HREF="../../../../org/jfree/chart/axis/AxisSpace.html" title="class in org.jfree.chart.axis">AxisSpace</A>&nbsp;space)</PRE>
<DL>
<DD>Estimates the space required for the axis, given a specific drawing area.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/jfree/chart/axis/Axis.html#reserveSpace(java.awt.Graphics2D, org.jfree.chart.plot.Plot, java.awt.geom.Rectangle2D, org.jfree.ui.RectangleEdge, org.jfree.chart.axis.AxisSpace)">reserveSpace</A></CODE> in class <CODE><A HREF="../../../../org/jfree/chart/axis/Axis.html" title="class in org.jfree.chart.axis">Axis</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>g2</CODE> - the graphics device (used to obtain font information).<DD><CODE>plot</CODE> - the plot that the axis belongs to.<DD><CODE>plotArea</CODE> - the area within which the axis should be drawn.<DD><CODE>edge</CODE> - the axis location (top or bottom).<DD><CODE>space</CODE> - the space already reserved.
<DT><B>Returns:</B><DD>The space required to draw the axis.</DL>
</DD>
</DL>
<HR>

<A NAME="configure()"><!-- --></A><H3>
configure</H3>
<PRE>
public void <B>configure</B>()</PRE>
<DL>
<DD>Configures the axis against the current plot.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/jfree/chart/axis/Axis.html#configure()">configure</A></CODE> in class <CODE><A HREF="../../../../org/jfree/chart/axis/Axis.html" title="class in org.jfree.chart.axis">Axis</A></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="draw(java.awt.Graphics2D, double, java.awt.geom.Rectangle2D, java.awt.geom.Rectangle2D, org.jfree.ui.RectangleEdge, org.jfree.chart.plot.PlotRenderingInfo)"><!-- --></A><H3>
draw</H3>
<PRE>
public <A HREF="../../../../org/jfree/chart/axis/AxisState.html" title="class in org.jfree.chart.axis">AxisState</A> <B>draw</B>(java.awt.Graphics2D&nbsp;g2,
                      double&nbsp;cursor,
                      java.awt.geom.Rectangle2D&nbsp;plotArea,
                      java.awt.geom.Rectangle2D&nbsp;dataArea,
                      org.jfree.ui.RectangleEdge&nbsp;edge,
                      <A HREF="../../../../org/jfree/chart/plot/PlotRenderingInfo.html" title="class in org.jfree.chart.plot">PlotRenderingInfo</A>&nbsp;plotState)</PRE>
<DL>
<DD>Draws the axis on a Java 2D graphics device (such as the screen or a printer).
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><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, org.jfree.chart.plot.PlotRenderingInfo)">draw</A></CODE> in class <CODE><A HREF="../../../../org/jfree/chart/axis/Axis.html" title="class in org.jfree.chart.axis">Axis</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>g2</CODE> - the graphics device (<code>null</code> not permitted).<DD><CODE>cursor</CODE> - the cursor location.<DD><CODE>plotArea</CODE> - the area within which the axis should be drawn (<code>null</code> not 
                  permitted).<DD><CODE>dataArea</CODE> - the area within which the plot is being drawn (<code>null</code> not 
                  permitted).<DD><CODE>edge</CODE> - the location of the axis (<code>null</code> not permitted).<DD><CODE>plotState</CODE> - collects information about the plot (<code>null</code> permitted).
<DT><B>Returns:</B><DD>the axis state (never <code>null</code>).</DL>
</DD>
</DL>
<HR>

<A NAME="drawCategoryLabels(java.awt.Graphics2D, java.awt.geom.Rectangle2D, java.awt.geom.Rectangle2D, org.jfree.ui.RectangleEdge, org.jfree.chart.axis.AxisState, org.jfree.chart.plot.PlotRenderingInfo)"><!-- --></A><H3>
drawCategoryLabels</H3>
<PRE>
protected <A HREF="../../../../org/jfree/chart/axis/AxisState.html" title="class in org.jfree.chart.axis">AxisState</A> <B>drawCategoryLabels</B>(java.awt.Graphics2D&nbsp;g2,
                                       java.awt.geom.Rectangle2D&nbsp;plotArea,
                                       java.awt.geom.Rectangle2D&nbsp;dataArea,
                                       org.jfree.ui.RectangleEdge&nbsp;edge,
                                       <A HREF="../../../../org/jfree/chart/axis/AxisState.html" title="class in org.jfree.chart.axis">AxisState</A>&nbsp;state,
                                       <A HREF="../../../../org/jfree/chart/plot/PlotRenderingInfo.html" title="class in org.jfree.chart.plot">PlotRenderingInfo</A>&nbsp;plotState)</PRE>
<DL>
<DD>Draws the category labels and returns the updated axis state.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>g2</CODE> - the graphics device (<code>null</code> not permitted).<DD><CODE>plotArea</CODE> - the plot area (<code>null</code> not permitted).<DD><CODE>dataArea</CODE> - the area inside the axes (<code>null</code> not permitted).<DD><CODE>edge</CODE> - the axis location (<code>null</code> not permitted).<DD><CODE>state</CODE> - the axis state (<code>null</code> not permitted).<DD><CODE>plotState</CODE> - collects information about the plot (<code>null</code> permitted).
<DT><B>Returns:</B><DD>the updated axis state (never <code>null</code>).</DL>
</DD>
</DL>
<HR>

<A NAME="refreshTicks(java.awt.Graphics2D, org.jfree.chart.axis.AxisState, java.awt.geom.Rectangle2D, java.awt.geom.Rectangle2D, org.jfree.ui.RectangleEdge)"><!-- --></A><H3>
refreshTicks</H3>
<PRE>
public java.util.List <B>refreshTicks</B>(java.awt.Graphics2D&nbsp;g2,
                                   <A HREF="../../../../org/jfree/chart/axis/AxisState.html" title="class in org.jfree.chart.axis">AxisState</A>&nbsp;state,
                                   java.awt.geom.Rectangle2D&nbsp;plotArea,
                                   java.awt.geom.Rectangle2D&nbsp;dataArea,
                                   org.jfree.ui.RectangleEdge&nbsp;edge)</PRE>
<DL>
<DD>Creates a temporary list of ticks that can be used when drawing the axis.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/jfree/chart/axis/Axis.html#refreshTicks(java.awt.Graphics2D, org.jfree.chart.axis.AxisState, java.awt.geom.Rectangle2D, java.awt.geom.Rectangle2D, org.jfree.ui.RectangleEdge)">refreshTicks</A></CODE> in class <CODE><A HREF="../../../../org/jfree/chart/axis/Axis.html" title="class in org.jfree.chart.axis">Axis</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>g2</CODE> - the graphics device (used to get font measurements).<DD><CODE>state</CODE> - the axis state.<DD><CODE>plotArea</CODE> - the area where the plot and axes will be drawn.<DD><CODE>dataArea</CODE> - the area inside the axes.<DD><CODE>edge</CODE> - the location of the axis.
<DT><B>Returns:</B><DD>A list of ticks.</DL>
</DD>
</DL>
<HR>

<A NAME="createLabel(java.lang.Comparable, float, org.jfree.ui.RectangleEdge, java.awt.Graphics2D)"><!-- --></A><H3>
createLabel</H3>
<PRE>
protected org.jfree.text.TextBlock <B>createLabel</B>(java.lang.Comparable&nbsp;category,
                                               float&nbsp;width,
                                               org.jfree.ui.RectangleEdge&nbsp;edge,
                                               java.awt.Graphics2D&nbsp;g2)</PRE>
<DL>
<DD>Creates a label.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>category</CODE> - the category.<DD><CODE>width</CODE> - the available width.<DD><CODE>edge</CODE> - the edge on which the axis appears.<DD><CODE>g2</CODE> - the graphics device.
<DT><B>Returns:</B><DD>a label.</DL>
</DD>
</DL>
<HR>

<A NAME="calculateTextBlockWidth(org.jfree.text.TextBlock, org.jfree.chart.axis.CategoryLabelPosition, java.awt.Graphics2D)"><!-- --></A><H3>
calculateTextBlockWidth</H3>
<PRE>
protected double <B>calculateTextBlockWidth</B>(org.jfree.text.TextBlock&nbsp;block,
                                         <A HREF="../../../../org/jfree/chart/axis/CategoryLabelPosition.html" title="class in org.jfree.chart.axis">CategoryLabelPosition</A>&nbsp;position,
                                         java.awt.Graphics2D&nbsp;g2)</PRE>
<DL>
<DD>A utility method for determining the width of a text block.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>block</CODE> - the text block.<DD><CODE>position</CODE> - the position.<DD><CODE>g2</CODE> - th