| java.lang.Object | ||
| ↳ | org.jfree.chart.needle.MeterNeedle | |
| ↳ | org.jfree.chart.needle.ArrowNeedle | |
 Known Direct Subclasses
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Class Overview
A needle in the shape of an arrow.
Summary
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From class
org.jfree.chart.needle.MeterNeedle
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Constructs a new arrow needle.
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Returns a clone of this needle.
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Tests another object for equality with this object.
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Returns a hash code for this instance.
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Draws the needle.
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Inherited Methods | |||||||||||
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From class
org.jfree.chart.needle.MeterNeedle
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From class
java.lang.Object
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Public Constructors
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. |
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Public Methods
public Object clone ()
Returns a clone of this needle.
Returns
- A clone.
Throws
| CloneNotSupportedException | if the ArrowNeedle
cannot be cloned (in theory, this should not happen).
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public boolean equals (Object obj)
Tests another object for equality with this object.
Parameters
| obj | the object to test (null permitted). |
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Returns
- A boolean.
public int hashCode ()
Returns a hash code for this instance.
Returns
- A hash code.
Protected Methods
protected void drawNeedle (Graphics2D g2, Rectangle2D plotArea, Point2D rotate, double angle)
Draws the needle.
Parameters
| g2 | the graphics device. |
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| plotArea | the plot area. |
| rotate | the rotation point. |
| angle | the angle. |