com.jrefinery.chart
Class XYStepRenderer

java.lang.Object
  com.jrefinery.chart.AbstractXYItemRenderer
      com.jrefinery.chart.XYStepRenderer

All Implemented Interfaces:

XYItemRenderer

public class XYStepRenderer
extends AbstractXYItemRenderer
implements XYItemRenderer

Line/Step item renderer for an XYPlot. This class draws lines between data points, only allowing horizontal or vertical lines (steps).

Field Summary

protected java.awt.geom.Line2D

line A working line (to save creating many instances).

Fields inherited from class com.jrefinery.chart.AbstractXYItemRenderer

info, listeners, toolTipGenerator

Constructor Summary

XYStepRenderer()
Constructs a new renderer.

Method Summary

void	drawItem(java.awt.Graphics2D g2, java.awt.geom.Rectangle2D dataArea, ChartRenderingInfo info, XYPlot plot, ValueAxis horizontalAxis, ValueAxis verticalAxis, XYDataset data, int series, int item, CrosshairInfo crosshairInfo) Draws the visual representation of a single data item.

Methods inherited from class com.jrefinery.chart.AbstractXYItemRenderer

addPropertyChangeListener, firePropertyChanged, getToolTipGenerator, initialise, removePropertyChangeListener, setToolTipGenerator

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.jrefinery.chart.XYItemRenderer

addPropertyChangeListener, getToolTipGenerator, initialise, removePropertyChangeListener, setToolTipGenerator

Field Detail

line

protected java.awt.geom.Line2D line

A working line (to save creating many instances).

Constructor Detail

XYStepRenderer

public XYStepRenderer()

Constructs a new renderer.

Method Detail

drawItem

public void drawItem(java.awt.Graphics2D g2,
                     java.awt.geom.Rectangle2D dataArea,
                     ChartRenderingInfo info,
                     XYPlot plot,
                     ValueAxis horizontalAxis,
                     ValueAxis verticalAxis,
                     XYDataset data,
                     int series,
                     int item,
                     CrosshairInfo crosshairInfo)

Draws the visual representation of a single data item.

Specified by:

drawItem in interface XYItemRenderer

Parameters:

g2 - The graphics device.

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).

horizontalAxis - The horizontal axis.

verticalAxis - The vertical axis.

data - The dataset.

series - The series index.

item - The item index.