polarplot.html

JFreeChart 9.20的文档 需要用JAVA在网页上做统计图的东东

</DD>
</DL>
<HR>

<A NAME="setRadiusGridlinePaint(java.awt.Paint)"><!-- --></A><H3>
setRadiusGridlinePaint</H3>
<PRE>
public void <B>setRadiusGridlinePaint</B>(java.awt.Paint&nbsp;paint)</PRE>
<DL>
<DD>Sets the paint for the grid lines plotted against the radius axis.
 <p>
 If you set this to <code>null</code>, no grid lines will be drawn.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>paint</CODE> - the paint (<code>null</code> permitted).</DL>
</DD>
</DL>
<HR>

<A NAME="draw(java.awt.Graphics2D, java.awt.geom.Rectangle2D, org.jfree.chart.plot.PlotState, org.jfree.chart.plot.PlotRenderingInfo)"><!-- --></A><H3>
draw</H3>
<PRE>
public void <B>draw</B>(java.awt.Graphics2D&nbsp;g2,
                 java.awt.geom.Rectangle2D&nbsp;plotArea,
                 <A HREF="../../../../org/jfree/chart/plot/PlotState.html" title="class in org.jfree.chart.plot">PlotState</A>&nbsp;parentState,
                 <A HREF="../../../../org/jfree/chart/plot/PlotRenderingInfo.html" title="class in org.jfree.chart.plot">PlotRenderingInfo</A>&nbsp;info)</PRE>
<DL>
<DD>Draws the plot on a Java 2D graphics device (such as the screen or a printer).
 <P>
 This plot relies on an <A HREF="../../../../org/jfree/chart/renderer/DefaultPolarItemRenderer.html" title="class in org.jfree.chart.renderer"><CODE>DefaultPolarItemRenderer</CODE></A> to draw 
 each item in the plot.  This allows the visual representation of the data to be changed 
 easily.
 <P>
 The optional info argument collects information about the rendering of
 the plot (dimensions, tooltip information etc).  Just pass in <code>null</code> if
 you do not need this information.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/jfree/chart/plot/Plot.html#draw(java.awt.Graphics2D, java.awt.geom.Rectangle2D, org.jfree.chart.plot.PlotState, org.jfree.chart.plot.PlotRenderingInfo)">draw</A></CODE> in class <CODE><A HREF="../../../../org/jfree/chart/plot/Plot.html" title="class in org.jfree.chart.plot">Plot</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>g2</CODE> - the graphics device.<DD><CODE>plotArea</CODE> - the area within which the plot (including axes and labels) should be drawn.<DD><CODE>parentState</CODE> - ignored.<DD><CODE>info</CODE> - collects chart drawing information (<code>null</code> permitted).</DL>
</DD>
</DL>
<HR>

<A NAME="drawCornerTextItems(java.awt.Graphics2D, java.awt.geom.Rectangle2D)"><!-- --></A><H3>
drawCornerTextItems</H3>
<PRE>
public void <B>drawCornerTextItems</B>(java.awt.Graphics2D&nbsp;g2,
                                java.awt.geom.Rectangle2D&nbsp;area)</PRE>
<DL>
<DD>Draws the corner text items.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>g2</CODE> - the drawing surface.<DD><CODE>area</CODE> - the area.</DL>
</DD>
</DL>
<HR>

<A NAME="drawAxis(java.awt.Graphics2D, java.awt.geom.Rectangle2D, java.awt.geom.Rectangle2D)"><!-- --></A><H3>
drawAxis</H3>
<PRE>
protected <A HREF="../../../../org/jfree/chart/axis/AxisState.html" title="class in org.jfree.chart.axis">AxisState</A> <B>drawAxis</B>(java.awt.Graphics2D&nbsp;g2,
                             java.awt.geom.Rectangle2D&nbsp;plotArea,
                             java.awt.geom.Rectangle2D&nbsp;dataArea)</PRE>
<DL>
<DD>A utility method for drawing the axes.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>g2</CODE> - the graphics device.<DD><CODE>plotArea</CODE> - the plot area.<DD><CODE>dataArea</CODE> - the data area.
<DT><B>Returns:</B><DD>A map containing the axis states.</DL>
</DD>
</DL>
<HR>

<A NAME="render(java.awt.Graphics2D, java.awt.geom.Rectangle2D, org.jfree.chart.plot.PlotRenderingInfo)"><!-- --></A><H3>
render</H3>
<PRE>
public void <B>render</B>(java.awt.Graphics2D&nbsp;g2,
                   java.awt.geom.Rectangle2D&nbsp;dataArea,
                   <A HREF="../../../../org/jfree/chart/plot/PlotRenderingInfo.html" title="class in org.jfree.chart.plot">PlotRenderingInfo</A>&nbsp;info)</PRE>
<DL>
<DD>Draws a representation of the data within the dataArea region, using the
 current m_Renderer.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>g2</CODE> - the graphics device.<DD><CODE>dataArea</CODE> - the region in which the data is to be drawn.<DD><CODE>info</CODE> - an optional object for collection dimension 
              information (<code>null</code> permitted).</DL>
</DD>
</DL>
<HR>

<A NAME="drawGridlines(java.awt.Graphics2D, java.awt.geom.Rectangle2D, java.util.List, java.util.List)"><!-- --></A><H3>
drawGridlines</H3>
<PRE>
protected void <B>drawGridlines</B>(java.awt.Graphics2D&nbsp;g2,
                             java.awt.geom.Rectangle2D&nbsp;dataArea,
                             java.util.List&nbsp;angularTicks,
                             java.util.List&nbsp;radialTicks)</PRE>
<DL>
<DD>Draws the gridlines for the plot, if they are visible.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>g2</CODE> - the graphics device.<DD><CODE>dataArea</CODE> - the data area.<DD><CODE>angularTicks</CODE> - the ticks for the angular axis.<DD><CODE>radialTicks</CODE> - the ticks for the radial axis.</DL>
</DD>
</DL>
<HR>

<A NAME="zoom(double)"><!-- --></A><H3>
zoom</H3>
<PRE>
public void <B>zoom</B>(double&nbsp;percent)</PRE>
<DL>
<DD>Zooms the axis ranges by the specified percentage about the anchor point.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../../org/jfree/chart/plot/Plot.html#zoom(double)">zoom</A></CODE> in class <CODE><A HREF="../../../../org/jfree/chart/plot/Plot.html" title="class in org.jfree.chart.plot">Plot</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>percent</CODE> - the amount of the zoom.</DL>
</DD>
</DL>
<HR>

<A NAME="getDataRange(org.jfree.chart.axis.ValueAxis)"><!-- --></A><H3>
getDataRange</H3>
<PRE>
public <A HREF="../../../../org/jfree/data/Range.html" title="class in org.jfree.data">Range</A> <B>getDataRange</B>(<A HREF="../../../../org/jfree/chart/axis/ValueAxis.html" title="class in org.jfree.chart.axis">ValueAxis</A>&nbsp;axis)</PRE>
<DL>
<DD>Returns the range for the specified axis.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/jfree/chart/plot/ValueAxisPlot.html#getDataRange(org.jfree.chart.axis.ValueAxis)">getDataRange</A></CODE> in interface <CODE><A HREF="../../../../org/jfree/chart/plot/ValueAxisPlot.html" title="interface in org.jfree.chart.plot">ValueAxisPlot</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>axis</CODE> - the axis.
<DT><B>Returns:</B><DD>the range.</DL>
</DD>
</DL>
<HR>

<A NAME="datasetChanged(org.jfree.data.DatasetChangeEvent)"><!-- --></A><H3>
datasetChanged</H3>
<PRE>
public void <B>datasetChanged</B>(<A HREF="../../../../org/jfree/data/DatasetChangeEvent.html" title="class in org.jfree.data">DatasetChangeEvent</A>&nbsp;event)</PRE>
<DL>
<DD>Receives notification of a change to the plot's m_Dataset.
 <P>
 The axis ranges are updated if necessary.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/jfree/data/DatasetChangeListener.html#datasetChanged(org.jfree.data.DatasetChangeEvent)">datasetChanged</A></CODE> in interface <CODE><A HREF="../../../../org/jfree/data/DatasetChangeListener.html" title="interface in org.jfree.data">DatasetChangeListener</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../../../org/jfree/chart/plot/Plot.html#datasetChanged(org.jfree.data.DatasetChangeEvent)">datasetChanged</A></CODE> in class <CODE><A HREF="../../../../org/jfree/chart/plot/Plot.html" title="class in org.jfree.chart.plot">Plot</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>event</CODE> - information about the event (not used here).</DL>
</DD>
</DL>
<HR>

<A NAME="rendererChanged(org.jfree.chart.event.RendererChangeEvent)"><!-- --></A><H3>
rendererChanged</H3>
<PRE>
public void <B>rendererChanged</B>(<A HREF="../../../../org/jfree/chart/event/RendererChangeEvent.html" title="class in org.jfree.chart.event">RendererChangeEvent</A>&nbsp;event)</PRE>
<DL>
<DD>Notifies all registered listeners of a property change.
 <P>
 One source of property change events is the plot's m_Renderer.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/jfree/chart/event/RendererChangeListener.html#rendererChanged(org.jfree.chart.event.RendererChangeEvent)">rendererChanged</A></CODE> in interface <CODE><A HREF="../../../../org/jfree/chart/event/RendererChangeListener.html" title="interface in org.jfree.chart.event">RendererChangeListener</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>event</CODE> - information about the property change.</DL>
</DD>
</DL>
<HR>

<A NAME="getSeriesCount()"><!-- --></A><H3>
getSeriesCount</H3>
<PRE>
public int <B>getSeriesCount</B>()</PRE>
<DL>
<DD>Returns the number of series in the dataset for this plot.  If the dataset is
 <code>null</code>, the method returns 0.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>The series count.</DL>
</DD>
</DL>
<HR>

<A NAME="getLegendItems()"><!-- --></A><H3>
getLegendItems</H3>
<PRE>
public <A HREF="../../../../org/jfree/chart/LegendItemCollection.html" title="class in org.jfree.chart">LegendItemCollection</A> <B>getLegendItems</B>()</PRE>
<DL>
<DD>Returns the legend items for the plot.  Each legend item is generated by the plot's
 m_Renderer, since the m_Renderer is responsible for the visual representation of the
 data.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../../org/jfree/chart/plot/Plot.html#getLegendItems()">getLegendItems</A></CODE> in class <CODE><A HREF="../../../../org/jfree/chart/plot/Plot.html" title="class in org.jfree.chart.plot">Plot</A></CODE></DL>
</DD>
<DD><DL>

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

<A NAME="equals(java.lang.Object)"><!-- --></A><H3>
equals</H3>
<PRE>
public boolean <B>equals</B>(java.lang.Object&nbsp;obj)</PRE>
<DL>
<DD>Tests this plot for equality with another object.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../../org/jfree/chart/plot/Plot.html#equals(java.lang.Object)">equals</A></CODE> in class <CODE><A HREF="../../../../org/jfree/chart/plot/Plot.html" title="class in org.jfree.chart.plot">Plot</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>obj</CODE> - the object.
<DT><B>Returns:</B><DD><code>true</code> or <code>false</code>.</DL>
</DD>
</DL>
<HR>

<A NAME="clone()"><!-- --></A><H3>
clone</H3>
<PRE>
public java.lang.Object <B>clone</B>()
                       throws java.lang.CloneNotSupportedException</PRE>
<DL>
<DD>Returns a clone of the plot.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../../org/jfree/chart/plot/Plot.html#clone()">clone</A></CODE> in class <CODE><A HREF="../../../../org/jfree/chart/plot/Plot.html" title="class in org.jfree.chart.plot">Plot</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>A clone.
<DT><B>Throws:</B>
<DD><CODE>java.lang.CloneNotSupportedException</CODE> - this can occur if some component of the plot cannot
         be cloned.</DL>
</DD>
</DL>
<HR>

<A NAME="zoomHorizontalAxes(double)"><!-- --></A><H3>
zoomHorizontalAxes</H3>
<PRE>
public void <B>zoomHorizontalAxes</B>(double&nbsp;factor)</PRE>
<DL>
<DD>Multiplies the range on the horizontal axis/axes by the specified factor.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/jfree/chart/plot/ValueAxisPlot.html#zoomHorizontalAxes(double)">zoomHorizontalAxes</A></CODE> in interface <CODE><A HREF="../../../../org/jfree/chart/plot/ValueAxisPlot.html" title="interface in org.jfree.chart.plot">ValueAxisPlot</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>factor</CODE> - the zoom factor.</DL>
</DD>
</DL>
<HR>

<A NAME="zoomHorizontalAxes(double, double)"><!-- --></A><H3>
zoomHorizontalAxes</H3>
<PRE>
public vo