org.opensourcephysics.media.core
Class TCircle

java.lang.Object
  java.awt.geom.Point2D
      java.awt.geom.Point2D.Double
          org.opensourcephysics.media.core.TPoint
              org.opensourcephysics.media.core.TShape
                  org.opensourcephysics.media.core.TCircle

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, Drawable, Interactive, Measurable, Trackable

public class TCircle
extends TShape

This is a Trackable circle that extends TShape.

Version:

1.0

Author:

Douglas Brown

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class java.awt.geom.Point2D

java.awt.geom.Point2D.Double, java.awt.geom.Point2D.Float

Field Summary

Fields inherited from class java.awt.geom.Point2D.Double

x, y

Constructor Summary

TCircle(int n)
Constructs a TCircle with image coordinates (0, 0).

TCircle(int n, double x, double y)
Constructs a TCircle with specified image coordinates.

Method Summary

Interactive	findInteractive(DrawingPanel panel, int xpix, int ypix) Returns this if it is enabled and visible and the specified pixel position falls within the bounds of this circle.
int	getFrameNumber(VideoPanel vidPanel) Overrides TPoint getFrameNumber method.
int	getRadius() Gets the radius of this circle.
void	setRadius(int radius) Sets the radius of this circle.

Methods inherited from class org.opensourcephysics.media.core.TShape

draw, getBounds, getColor, getStroke, isVisible, setColor, setStroke, setVisible, toString

Methods inherited from class org.opensourcephysics.media.core.TPoint

addPropertyChangeListener, addPropertyChangeListener, angle, angle, center, cos, cos, equals, getScreenPosition, getWorldPosition, getXMax, getXMin, getYMax, getYMin, isAdjusting, isAutotrackable, isCoordsEditTrigger, isEnabled, isMeasured, isStepEditTrigger, isTrackEditTrigger, removePropertyChangeListener, removePropertyChangeListener, setAdjusting, setCoordsEditTrigger, setEnabled, setLocation, setPositionOnLine, setScreenPosition, setScreenPosition, setStepEditTrigger, setTrackEditTrigger, setX, setXY, setY, showCoordinates, sin, sin, translate

Methods inherited from class java.awt.geom.Point2D.Double

getX, getY

Methods inherited from class java.awt.geom.Point2D

clone, distance, distance, distance, distanceSq, distanceSq, distanceSq, hashCode, setLocation

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.opensourcephysics.display.Interactive

getX, getY

Constructor Detail

TCircle

public TCircle(int n)

Constructs a TCircle with image coordinates (0, 0).

Parameters:

n - the video frame number

TCircle

public TCircle(int n,
               double x,
               double y)

Constructs a TCircle with specified image coordinates.

Parameters:

n - the video frame number

x - the x coordinate

y - the y coordinate

Method Detail

setRadius

public void setRadius(int radius)

Sets the radius of this circle.

Parameters:

radius - the radius in screen pixels

getRadius

public int getRadius()

Gets the radius of this circle.

Returns:

the radius in screen pixels

getFrameNumber

public int getFrameNumber(VideoPanel vidPanel)

Overrides TPoint getFrameNumber method.

Overrides:

getFrameNumber in class TPoint

Parameters:

vidPanel - the video panel drawing this circle

Returns:

the frame number

findInteractive

public Interactive findInteractive(DrawingPanel panel,
                                   int xpix,
                                   int ypix)

Returns this if it is enabled and visible and the specified pixel position falls within the bounds of this circle.

Specified by:

findInteractive in interface Interactive

Overrides:

findInteractive in class TShape

Parameters:

panel - the drawing panel

xpix - the x pixel position on the panel

ypix - the y pixel position on the panel

Returns:

this if enabled and hit, otherwise null