Package 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:

Serializable, 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

Point2D.Double, Point2D.Float

Field Summary

Fields

Modifier and Type	Field	Description
protected Ellipse2D	circle
protected int	n
protected int	radius

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

color, fillShape, hitRect, stroke, visible

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

attachedTo, coordsEditTrigger, coordsVisibleInMouseBox, enabled, isAdjusting, prevX, prevY, screenPt, stepEditTrigger, support, toScreen, trackEditTrigger, worldPt, xyStringBuilder

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

x, y

Fields inherited from interface org.opensourcephysics.media.core.Trackable

PROPERTY_ADJUSTING

Constructor Summary

Constructors

Constructor	Description
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

Modifier and Type	Method	Description
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.
protected Shape	getShape(VideoPanel vidPanel)	Gets the circle shape to be filled in the draw method.
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, setHitRectCenter, setStroke, setVisible, toString

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

addPropertyChangeListener, addPropertyChangeListener, angle, angle, attachTo, center, cos, cos, detach, equals, getScreenPosition, getWorldPosition, getXMax, getXMin, getYMax, getYMin, isAdjusting, isAttached, isCoordsEditTrigger, isEnabled, isMeasured, isStepEditTrigger, isTrackEditTrigger, removePropertyChangeListener, removePropertyChangeListener, setAdjusting, setCoordsEditTrigger, setEnabled, setLocation, setPositionOnLine, setScreenPosition, setScreenPosition, setStepEditTrigger, setTrackEditTrigger, setWorldPosition, 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

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

Methods inherited from interface org.opensourcephysics.display.Interactive

getX, getY, isInteractive

Field Details

circle

protected Ellipse2D circle

radius

protected int radius

n

protected int n

Constructor Details

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 Details

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

getShape

protected Shape getShape(VideoPanel vidPanel)

Gets the circle shape to be filled in the draw method.

Overrides:

getShape in class TShape

Parameters:

vidPanel - the video panel

Returns:

the circle shape