Package org.jfree.chart.needle

Class ArrowNeedle

java.lang.Object

org.jfree.chart.needle.MeterNeedle

org.jfree.chart.needle.ArrowNeedle

All Implemented Interfaces:

Serializable, Cloneable

Direct Known Subclasses:

WindNeedle

public class ArrowNeedle
extends MeterNeedle
implements Cloneable, Serializable

A needle in the shape of an arrow.

See Also:

• Serialized Form

Field Summary

Fields inherited from class org.jfree.chart.needle.MeterNeedle

transform

Constructor Summary

Constructors

Constructor	Description
ArrowNeedle(boolean isArrowAtTop)	Constructs a new arrow needle.

Method Summary

Modifier and Type	Method	Description
Object	clone()	Returns a clone of this needle.
protected void	drawNeedle(Graphics2D g2, Rectangle2D plotArea, Point2D rotate, double angle)	Draws the needle.
boolean	equals(Object obj)	Tests another object for equality with this object.
int	hashCode()	Returns a hash code for this instance.

Methods inherited from class org.jfree.chart.needle.MeterNeedle

defaultDisplay, draw, draw, draw, getFillPaint, getHighlightPaint, getOutlinePaint, getOutlineStroke, getRotateX, getRotateY, getSize, getTransform, setFillPaint, setHighlightPaint, setOutlinePaint, setOutlineStroke, setRotateX, setRotateY, setSize

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Details

ArrowNeedle

public ArrowNeedle(boolean isArrowAtTop)

Constructs a new arrow needle.

Parameters:

isArrowAtTop - a flag that controls whether or not there is an arrow at the top of the needle.

Method Details

drawNeedle

protected void drawNeedle(Graphics2D g2,
 Rectangle2D plotArea,
 Point2D rotate,
 double angle)

Draws the needle.

Specified by:

drawNeedle in class MeterNeedle

Parameters:

g2 - the graphics device.

plotArea - the plot area.

rotate - the rotation point.

angle - the angle.

equals

public boolean equals(Object obj)

Tests another object for equality with this object.

Overrides:

equals in class MeterNeedle

Parameters:

obj - the object to test (null permitted).

Returns:

A boolean.

hashCode

public int hashCode()

Returns a hash code for this instance.

Overrides:

hashCode in class MeterNeedle

Returns:

A hash code.

clone

public Object clone()
             throws CloneNotSupportedException

Returns a clone of this needle.

Overrides:

clone in class Object

Returns:

A clone.

Throws:

CloneNotSupportedException - if the ArrowNeedle cannot be cloned (in theory, this should not happen).