org.opensourcephysics.cabrillo.tracker
Class ArrowFootprint

java.lang.Object
  org.opensourcephysics.cabrillo.tracker.LineFootprint
      org.opensourcephysics.cabrillo.tracker.ArrowFootprint

All Implemented Interfaces:

java.lang.Cloneable, Footprint

public class ArrowFootprint
extends LineFootprint

An ArrowFootprint returns an arrow shape for a Point array of length 2.

Author:

Douglas Brown

Field Summary

protected double	defaultStretch
protected double	stretch
protected int	tipLength
protected int	tipWidth

Fields inherited from class org.opensourcephysics.cabrillo.tracker.LineFootprint

color, DASHED_LINE, defaultWidth, DOTTED_LINE, hitShapes, line, name, path, stroke, transform

Constructor Summary

ArrowFootprint(java.lang.String name)
Constructs an ArrowFootprint.

ArrowFootprint(java.lang.String name, double stretch)
Constructs an ArrowFootprint.

Method Summary

javax.swing.Icon	getIcon(int w, int h) Gets the icon.
java.awt.Shape	getShape(java.awt.Point[] points) Gets the shape of this footprint.
double	getStretch() Gets the stretch.
void	setStretch(double stretch) Sets the stretch.
void	setTipLength(int tipLength) Sets the length of the arrow tip.

Methods inherited from class org.opensourcephysics.cabrillo.tracker.LineFootprint

getColor, getDisplayName, getFootprint, getHitShapes, getLength, getMark, getName, getStroke, setColor, setDashArray, setLineWidth, setStroke

Methods inherited from class java.lang.Object

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

Field Detail

stretch

protected double stretch

defaultStretch

protected double defaultStretch

tipLength

protected int tipLength

tipWidth

protected int tipWidth

Constructor Detail

ArrowFootprint

public ArrowFootprint(java.lang.String name)

Constructs an ArrowFootprint.

Parameters:

name - the name

ArrowFootprint

public ArrowFootprint(java.lang.String name,
                      double stretch)

Constructs an ArrowFootprint.

Parameters:

name - the name

stretch - the default stretch

Method Detail

setStretch

public void setStretch(double stretch)

Sets the stretch. The length of the arrow is stretched by this factor.

Parameters:

stretch - the desired stretch

getStretch

public double getStretch()

Gets the stretch.

Returns:

the stretch

setTipLength

public void setTipLength(int tipLength)

Sets the length of the arrow tip.

Parameters:

tipLength - the desired tip length in pixels

getIcon

public javax.swing.Icon getIcon(int w,
                                int h)

Gets the icon.

Specified by:

getIcon in interface Footprint

Overrides:

getIcon in class LineFootprint

Parameters:

w - width of the icon

h - height of the icon

Returns:

the icon

getShape

public java.awt.Shape getShape(java.awt.Point[] points)

Gets the shape of this footprint.

Specified by:

getShape in interface Footprint

Overrides:

getShape in class LineFootprint

Parameters:

points - an array of Points

Returns:

the shape