org.opensourcephysics.drawing2d
Class ElementSpring

java.lang.Object
  org.opensourcephysics.drawing2d.Element
      org.opensourcephysics.drawing2d.ElementSegment
          org.opensourcephysics.drawing2d.ElementSpring

All Implemented Interfaces:

Drawable, Interactive, LogMeasurable, Measurable

public class ElementSpring
extends ElementSegment

Title: ElementSpring

Description: A spring.

Version:

June 2008

Author:

Francisco Esquembre

Field Summary

static int	DEF_LOOPS
static int	DEF_PPL
static double	DEF_RADIUS

Fields inherited from class org.opensourcephysics.drawing2d.Element

TARGET_POSITION, TARGET_SIZE

Constructor Summary

ElementSpring()

Method Summary

void	draw(DrawingPanel _panel, java.awt.Graphics _g) Draws the element on a given Graphics2D.
int	getLoops() Returns the number of loops of the spring
int	getPointsPerLoop() Returns the number of points per loop
double	getRadius() Gets the radius of the spring.
double	getSolenoid() Returns the double factor used to make the spring look like a solenoid.
boolean	isThinExtremes() Whether the extremes of the spring should be thin.
void	setRadius(double radius) Sets the radius of the spring.
void	setResolution(int _loops, int _ppl) Configures the number of points used to display the spring
void	setSolenoid(double _sol) A double factor that makes the spring look like a solenoid.
void	setThinExtremes(boolean _thin) Whether the extremes of the spring should be thin.

Methods inherited from class org.opensourcephysics.drawing2d.ElementSegment

findInteractive

Methods inherited from class org.opensourcephysics.drawing2d.Element

addInteractionListener, getCanBeMeasured, getDataObject, getInteractionTarget, getName, getPanel, getPosition, getSize, getSizeX, getSizeY, getStyle, getTransformation, getX, getXMax, getXMaxLogscale, getXMin, getXMinLogscale, getY, getYMax, getYMaxLogscale, getYMin, getYMinLogscale, hasChanged, invokeActions, isEnabled, isMeasured, isVisible, removeInteractionListener, setCanBeMeasured, setDataObject, setElementChanged, setEnabled, setName, setNeedToProject, setPanel, setPosition, setSize, setSizeX, setSizeXY, setSizeY, setTransformation, setVisible, setX, setXY, setY, toBodyFrame, toSpaceFrame, updateHotSpot

Methods inherited from class java.lang.Object

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

Field Detail

DEF_RADIUS

public static final double DEF_RADIUS

See Also:

Constant Field Values

DEF_LOOPS

public static final int DEF_LOOPS

See Also:

Constant Field Values

DEF_PPL

public static final int DEF_PPL

See Also:

Constant Field Values

Constructor Detail

ElementSpring

public ElementSpring()

Method Detail

setRadius

public void setRadius(double radius)

Sets the radius of the spring.

Parameters:

radius - the radius of the spring (normal to its direction)

getRadius

public double getRadius()

Gets the radius of the spring.

setSolenoid

public void setSolenoid(double _sol)

A double factor that makes the spring look like a solenoid.

Parameters:

_sol -

getSolenoid

public double getSolenoid()

Returns the double factor used to make the spring look like a solenoid.

Returns:

setThinExtremes

public void setThinExtremes(boolean _thin)

Whether the extremes of the spring should be thin. True by default

Parameters:

_thin -

isThinExtremes

public boolean isThinExtremes()

Whether the extremes of the spring should be thin.

Returns:

setResolution

public void setResolution(int _loops,
                          int _ppl)

Configures the number of points used to display the spring

Parameters:

loops - the number of total loops

pointsPerLoop - the number of points per loop

getLoops

public int getLoops()

Returns the number of loops of the spring

Returns:

getPointsPerLoop

public int getPointsPerLoop()

Returns the number of points per loop

Returns:

draw

public void draw(DrawingPanel _panel,
                 java.awt.Graphics _g)

Description copied from class: Element

Draws the element on a given Graphics2D. Required by Drawable (in Interactive)

Specified by:

draw in interface Drawable

Overrides:

draw in class ElementSegment