Class YIntervalRenderer

All Implemented Interfaces:
Serializable, Cloneable, EventListener, AnnotationChangeListener, LegendItemSource, XYItemRenderer, PublicCloneable

public class YIntervalRenderer extends AbstractXYItemRenderer implements XYItemRenderer, Cloneable, PublicCloneable, Serializable
A renderer that draws a line connecting the start and end Y values for an XYPlot. The example shown here is generated by the YIntervalRendererDemo1.java program included in the JFreeChart demo collection:

YIntervalRendererSample.png
See Also:
  • Field Details

    • serialVersionUID

      private static final long serialVersionUID
      For serialization.
      See Also:
    • additionalItemLabelGenerator

      private XYItemLabelGenerator additionalItemLabelGenerator
      An additional item label generator. If this is non-null, the item label generated will be displayed near the lower y-value at the position given by getNegativeItemLabelPosition().
  • Constructor Details

    • YIntervalRenderer

      public YIntervalRenderer()
      The default constructor.
  • Method Details

    • getAdditionalItemLabelGenerator

      public XYItemLabelGenerator getAdditionalItemLabelGenerator()
      Returns the generator for the item labels that appear near the lower y-value.
      Returns:
      The generator (possibly null).
      See Also:
    • setAdditionalItemLabelGenerator

      public void setAdditionalItemLabelGenerator(XYItemLabelGenerator generator)
      Sets the generator for the item labels that appear near the lower y-value and sends a RendererChangeEvent to all registered listeners. If this is set to null, no item labels will be drawn.
      Parameters:
      generator - the generator (null permitted).
      See Also:
    • findRangeBounds

      public Range findRangeBounds(XYDataset dataset)
      Returns the range of values the renderer requires to display all the items from the specified dataset.
      Specified by:
      findRangeBounds in interface XYItemRenderer
      Overrides:
      findRangeBounds in class AbstractXYItemRenderer
      Parameters:
      dataset - the dataset (null permitted).
      Returns:
      The range (null if the dataset is null or empty).
      See Also:
    • 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 plot is being drawn.
      info - collects information about the drawing.
      plot - the plot (can be used to obtain standard color information etc).
      domainAxis - the domain axis.
      rangeAxis - the range 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 (ignored here).
    • drawAdditionalItemLabel

      private void drawAdditionalItemLabel(Graphics2D g2, PlotOrientation orientation, XYDataset dataset, int series, int item, double x, double y)
      Draws an item label.
      Parameters:
      g2 - the graphics device.
      orientation - the orientation.
      dataset - the dataset.
      series - the series index (zero-based).
      item - the item index (zero-based).
      x - the x coordinate (in Java2D space).
      y - the y coordinate (in Java2D space).
    • equals

      public boolean equals(Object obj)
      Tests this renderer for equality with an arbitrary object.
      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.