Package org.jfree.chart.renderer.xy

Class XYDotRenderer

java.lang.Object
org.jfree.chart.renderer.AbstractRenderer
org.jfree.chart.renderer.xy.AbstractXYItemRenderer
org.jfree.chart.renderer.xy.XYDotRenderer
All Implemented Interfaces:
Serializable, Cloneable, EventListener, AnnotationChangeListener, LegendItemSource, XYItemRenderer, PublicCloneable
public class XYDotRenderer
extends AbstractXYItemRenderer
implements XYItemRenderer, PublicCloneable
A renderer that draws a small dot at each data point for an XYPlot. The example shown here is generated by the ScatterPlotDemo4.java program included in the JFreeChart demo collection:

XYDotRendererSample.png
See Also:
Serialized Form

  • Constructor Details

    • XYDotRenderer

      public XYDotRenderer()
      Constructs a new renderer.

  • Method Details

    • getDotWidth

      public int getDotWidth()
      Returns the dot width (the default value is 1).
      Returns:
      The dot width.
      Since:
      1.0.2
      See Also:
      setDotWidth(int)

    • setDotWidth

      public void setDotWidth​(int w)
      Sets the dot width and sends a RendererChangeEvent to all registered listeners.
      Parameters:
      w - the new width (must be greater than zero).
      Throws:
      IllegalArgumentException - if w is less than one.
      Since:
      1.0.2
      See Also:
      getDotWidth()

    • getDotHeight

      public int getDotHeight()
      Returns the dot height (the default value is 1).
      Returns:
      The dot height.
      Since:
      1.0.2
      See Also:
      setDotHeight(int)

    • setDotHeight

      public void setDotHeight​(int h)
      Sets the dot height and sends a RendererChangeEvent to all registered listeners.
      Parameters:
      h - the new height (must be greater than zero).
      Throws:
      IllegalArgumentException - if h is less than one.
      Since:
      1.0.2
      See Also:
      getDotHeight()

    • getLegendShape

      public Shape getLegendShape()
      Returns the shape used to represent an item in the legend.
      Returns:
      The legend shape (never null).
      Since:
      1.0.7
      See Also:
      setLegendShape(Shape)

    • setLegendShape

      public void setLegendShape​(Shape shape)
      Sets the shape used as a line in each legend item and sends a RendererChangeEvent to all registered listeners.
      Parameters:
      shape - the shape (null not permitted).
      Since:
      1.0.7
      See Also:
      getLegendShape()

    • drawItem

      public void drawItem​(Graphics2D g2, XYItemRendererState state, Rectangle2D dataArea, PlotRenderingInfo info, XYPlot plot, ValueAxis domainAxis, ValueAxis rangeAxis, XYDataset dataset, int series, int item, CrosshairState crosshairState, int pass)
      Draws the visual representation of a single data item.
      Specified by:
      drawItem in interface XYItemRenderer
      Parameters:
      g2 - the graphics device.
      state - the renderer state.
      dataArea - the area within which the data is being drawn.
      info - collects information about the drawing.
      plot - the plot (can be used to obtain standard color information etc).
      domainAxis - the domain (horizontal) axis.
      rangeAxis - the range (vertical) axis.
      dataset - the dataset.
      series - the series index (zero-based).
      item - the item index (zero-based).
      crosshairState - crosshair information for the plot (null permitted).
      pass - the pass index.

    • getLegendItem

      public LegendItem getLegendItem​(int datasetIndex, int series)
      Returns a legend item for the specified series.
      Specified by:
      getLegendItem in interface XYItemRenderer
      Overrides:
      getLegendItem in class AbstractXYItemRenderer
      Parameters:
      datasetIndex - the dataset index (zero-based).
      series - the series index (zero-based).
      Returns:
      A legend item for the series (possibly null).

    • equals

      public boolean equals​(Object obj)
      Tests this renderer for equality with an arbitrary object. This method returns true if and only if:
      • obj is not null;
      • obj is an instance of XYDotRenderer;
      • both renderers have the same attribute values.
      Overrides:
      equals in class AbstractXYItemRenderer
      Parameters:
      obj - the object (null permitted).
      Returns:
      A boolean.

    • clone

      public Object clone() throws CloneNotSupportedException
      Returns a clone of the renderer.
      Specified by:
      clone in interface PublicCloneable
      Overrides:
      clone in class AbstractXYItemRenderer
      Returns:
      A clone.
      Throws:
      CloneNotSupportedException - if the renderer cannot be cloned.