com.jrefinery.chart
Class AreaXYItemRenderer

java.lang.Object
  extended by com.jrefinery.chart.AbstractXYItemRenderer
      extended by com.jrefinery.chart.AreaXYItemRenderer
All Implemented Interfaces:
XYItemRenderer

public class AreaXYItemRenderer
extends AbstractXYItemRenderer
implements XYItemRenderer

Area item renderer for an XYPlot. This class can draw (a) shapes at each point, or (b) lines between points, or (c) both shapes and lines, or (d) filled areas, or (e) filled areas and shapes.


Field Summary
static int AREA
          Useful constant for specifying the type of rendering (area only).
static int AREA_AND_SHAPES
          Useful constant for specifying the type of rendering (area and shapes).
protected  java.awt.geom.Line2D line
          A working line (to save creating thousands of instances).
static int LINES
          Useful constant for specifying the type of rendering (lines only).
protected  java.awt.Polygon pArea
          Area of the complete series
protected  boolean plotArea
          A flag indicating whether or not Area are drawn at each XY point.
protected  boolean plotLines
          A flag indicating whether or not lines are drawn between XY points.
protected  boolean plotShapes
          A flag indicating whether or not shapes are drawn at each XY point.
static int SHAPES
          Useful constant for specifying the type of rendering (shapes only).
static int SHAPES_AND_LINES
          Useful constant for specifying the type of rendering (shapes and lines).
protected  double shapeScale
          Scale factor for standard shapes.
protected  boolean showOutline
           
protected  double zeroToJava2D
           
 
Fields inherited from class com.jrefinery.chart.AbstractXYItemRenderer
info, listeners, toolTipGenerator
 
Constructor Summary
AreaXYItemRenderer()
          Constructs a new renderer.
AreaXYItemRenderer(int type)
          Constructs a new renderer.
AreaXYItemRenderer(int type, com.jrefinery.chart.tooltips.XYToolTipGenerator toolTipGenerator)
          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.
 boolean getPlotArea()
          Returns true if Area is being plotted by the renderer.
 boolean getPlotLines()
          Returns true if lines are being plotted by the renderer.
 boolean getPlotShapes()
          Returns true if shapes are being plotted by the renderer.
 void initialise(java.awt.Graphics2D g2, java.awt.geom.Rectangle2D dataArea, XYPlot plot, XYDataset data, ChartRenderingInfo info)
          Initialises the renderer.
 boolean isOutline()
           
 void setOutline(boolean show)
           
 
Methods inherited from class com.jrefinery.chart.AbstractXYItemRenderer
addPropertyChangeListener, firePropertyChanged, getToolTipGenerator, 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, removePropertyChangeListener, setToolTipGenerator
 

Field Detail

SHAPES

public static final int SHAPES
Useful constant for specifying the type of rendering (shapes only).

See Also:
Constant Field Values

LINES

public static final int LINES
Useful constant for specifying the type of rendering (lines only).

See Also:
Constant Field Values

SHAPES_AND_LINES

public static final int SHAPES_AND_LINES
Useful constant for specifying the type of rendering (shapes and lines).

See Also:
Constant Field Values

AREA

public static final int AREA
Useful constant for specifying the type of rendering (area only).

See Also:
Constant Field Values

AREA_AND_SHAPES

public static final int AREA_AND_SHAPES
Useful constant for specifying the type of rendering (area and shapes).

See Also:
Constant Field Values

plotShapes

protected boolean plotShapes
A flag indicating whether or not shapes are drawn at each XY point.


plotLines

protected boolean plotLines
A flag indicating whether or not lines are drawn between XY points.


plotArea

protected boolean plotArea
A flag indicating whether or not Area are drawn at each XY point.


shapeScale

protected double shapeScale
Scale factor for standard shapes.


showOutline

protected boolean showOutline

zeroToJava2D

protected double zeroToJava2D

line

protected java.awt.geom.Line2D line
A working line (to save creating thousands of instances).


pArea

protected java.awt.Polygon pArea
Area of the complete series

Constructor Detail

AreaXYItemRenderer

public AreaXYItemRenderer()
Constructs a new renderer.


AreaXYItemRenderer

public AreaXYItemRenderer(int type)
Constructs a new renderer.


AreaXYItemRenderer

public AreaXYItemRenderer(int type,
                          com.jrefinery.chart.tooltips.XYToolTipGenerator toolTipGenerator)
Constructs a new renderer.

To specify the type of renderer, use one of the constants: SHAPES, LINES, SHAPES_AND_LINES, AREA or AREA_AND_SHAPES.

Parameters:
type - The type of renderer.
Method Detail

isOutline

public boolean isOutline()

setOutline

public void setOutline(boolean show)

getPlotShapes

public boolean getPlotShapes()
Returns true if shapes are being plotted by the renderer.


getPlotLines

public boolean getPlotLines()
Returns true if lines are being plotted by the renderer.


getPlotArea

public boolean getPlotArea()
Returns true if Area is being plotted by the renderer.


initialise

public void initialise(java.awt.Graphics2D g2,
                       java.awt.geom.Rectangle2D dataArea,
                       XYPlot plot,
                       XYDataset data,
                       ChartRenderingInfo info)
Initialises the renderer. Here we calculate the Java2D y-coordinate for zero, since all the bars have their bases fixed at zero.

Specified by:
initialise in interface XYItemRenderer
Overrides:
initialise in class AbstractXYItemRenderer
Parameters:
g2 - The graphics device.
dataArea - The area inside the axes.
plot - The plot.
data - The data.
info - An optional info collection object to return data back to the caller.

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.


Copyright © 2003 MBARI.

The Monterey Bay Aquarium Research Institute (MBARI) provides this documentation and code "as is", with no warranty, express or implied, of its quality or consistency. It is provided without support and without obligation on the part of MBARI to assist in its use, correction, modification, or enhancement.