net.sf.jaxodraw.object.loop
Class JaxoLoopObject

java.lang.Object
  net.sf.jaxodraw.object.JaxoObject
      net.sf.jaxodraw.object.JaxoExtendedObject
          net.sf.jaxodraw.object.JaxoParticleObject
              net.sf.jaxodraw.object.loop.JaxoLoopObject

All Implemented Interfaces:

Shape, PropertyChangeListener, Serializable, Cloneable, EventListener

Direct Known Subclasses:

JaxoDashLoop, JaxoFLoop, JaxoGlLoop, JaxoPLoop

public abstract class JaxoLoopObject
extends JaxoParticleObject

A general loop object.

Since:

2.0

See Also:

Serialized Form

Field Summary

Fields inherited from class net.sf.jaxodraw.object.JaxoParticleObject

GHOST_DASH, GLUON_FREQ, PHOTON_FREQ, SCALAR_DASH

Fields inherited from class net.sf.jaxodraw.object.JaxoExtendedObject

SELECT_DX, SELECT_DY, SELECT_P2

Fields inherited from class net.sf.jaxodraw.object.JaxoObject

D_FORMAT, GRAY_SCALE_FORMAT, SELECT_NONE, SELECT_P1

Constructor Summary

JaxoLoopObject()

Method Summary

JaxoArrow.Coordinates	arrowCoordinates() Returns the coordinates of the arrow of the current object.
JaxoObject	copy(JaxoLoopObject temp) Returns an exact copy of this JaxoLoop.
protected abstract String	getAxo4JOptions(float scale) Return the option part of the LaTeX command for this line.
Rectangle	getBounds() Returns the bounding box of this object.
Point2D.Float[]	getEquidistantPoints(int n) Dividing the loop into n equidistant segments of length d, so n * d = 2 * r * PI is the circumference of the loop, this routine returns the n + 1 loop points that are i * d away from P1, where 0 <= i <= n.
protected Point2D	getLaTexAngles() Returns an angle which is used by the latexCommand method.
protected Point2D	getLaTexCenter(float scaleFactor, int canvasHeight) Returns a center point which is used by the latexCommand method.
protected float	getLaTexRadius(float scaleFactor) Returns a radius which is used by the latexCommand method.
protected abstract GeneralPath	getObjectPath() Get the GeneralPath that paints this loop.
boolean	isCopy(JaxoObject comp) Determines if this JaxoObject is a copy of the specified one.
String	latexCommand(float scale, Dimension canvasDim) The LaTeX command that is necessary to draw the given JaxoObject using the axodraw.sty package.
void	paint(JaxoGraphics2D g2) The method that paints the JaxoObject.
void	paintVisualAid(JaxoGraphics2D g2) Paints a visual aid for the user during dragging (moving or resizing) of this JaxoObject.
void	rescaleObject(int orx, int ory, float scale) Rescale this JaxoObject by the scale factor scale, keeping the point (orx, ory) fixed.

Methods inherited from class net.sf.jaxodraw.object.JaxoParticleObject

arrowPositionIs, copy, copyFrom, dashIs, dlSepIs, getAmp, getArrow, getArrowPosition, getDash, getDLSeparation, getWiggles, isDoubleLine, isFlip, isPaintArrow, paintArrow, setAmp, setArrow, setArrowPosition, setDash, setDLSeparation, setDoubleLine, setFlip, setPaintArrow, setPreferences, setState, setWiggles

Methods inherited from class net.sf.jaxodraw.object.JaxoExtendedObject

canBeSelected, copyFrom, getGrabbedHandle, getHeight, getPointCount, getRadius, getRelh, getRelSize, getRelw, getSize, getStroke, getStrokeWidth, getWidth, getX, getX2, getY, getY2, latexWidth, moveBy, paintHandles, resetStroke, setLocation, setRadius, setRelativeHeight, setRelativeWidth, setRelWAndH, setStroke, setStrokeWidth, setX, setX2, setY, setY2, smallestDistanceTo, strokeIs

Methods inherited from class net.sf.jaxodraw.object.JaxoObject

addPropertyChangeListener, contains, contains, contains, contains, copyFrom, firePropertyChange, getBounds2D, getBoundsWithHandles, getColor, getGeneralPath, getLaTexLocation, getName, getPathIterator, getPathIterator, getPoints, getX, getY, intersects, intersects, isAround, isMarked, prepareEditPanel, propertyChange, removePropertyChangeListener, setAsMarked, setColor, setLocation, setParameter, setParameter, setParameter, setParameter, setParameter, setParameter, setParameter, setPointCount, setPoints, setTransient, setX, setXPosition, setY, setYPosition

Methods inherited from class java.lang.Object

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

Constructor Detail

JaxoLoopObject

public JaxoLoopObject()

Method Detail

copy

public final JaxoObject copy(JaxoLoopObject temp)

Returns an exact copy of this JaxoLoop.

Parameters:

temp - An instance of the loop to copy to (since this is an abstract class, we have to provide an instance of a sub-class).

Returns:

A copy of this JaxoLoop.

isCopy

public boolean isCopy(JaxoObject comp)

Determines if this JaxoObject is a copy of the specified one.

Overrides:

isCopy in class JaxoParticleObject

Parameters:

comp - The JaxoObject to compare against.

Returns:

True if the JaxoObjects are identical.

paint

public void paint(JaxoGraphics2D g2)

The method that paints the JaxoObject.

Specified by:

paint in class JaxoObject

Parameters:

g2 - The graphics context where the object has to be painted.

getBounds

public Rectangle getBounds()

Returns the bounding box of this object.

Returns:

the bounding box of this object.

latexCommand

public String latexCommand(float scale,
                           Dimension canvasDim)

The LaTeX command that is necessary to draw the given JaxoObject using the axodraw.sty package.

Specified by:

latexCommand in class JaxoObject

Parameters:

scale - A scale factor to translate Java coordinates to LaTeX coordinates.

canvasDim - The current dimension of the canvas.

Returns:

The corresponding axodraw LaTeX command.

paintVisualAid

public final void paintVisualAid(JaxoGraphics2D g2)

Paints a visual aid for the user during dragging (moving or resizing) of this JaxoObject.

Overrides:

paintVisualAid in class JaxoObject

Parameters:

g2 - The graphics context to paint the visual aid.

arrowCoordinates

public JaxoArrow.Coordinates arrowCoordinates()

Returns the coordinates of the arrow of the current object.

Specified by:

arrowCoordinates in class JaxoParticleObject

Returns:

The coordinates of the arrow of the current object.

rescaleObject

public final void rescaleObject(int orx,
                                int ory,
                                float scale)

Rescale this JaxoObject by the scale factor scale, keeping the point (orx, ory) fixed.

Specified by:

rescaleObject in class JaxoObject

Parameters:

orx - The x-coordinate of the fixed point.

ory - The y-coordinate of the fixed point.

scale - The scale parameter.

getLaTexCenter

protected Point2D getLaTexCenter(float scaleFactor,
                                 int canvasHeight)

Returns a center point which is used by the latexCommand method.

Parameters:

scaleFactor - A scale factor.

canvasHeight - The height of the current canvas.

Returns:

A Point2D object holding the center point.

getEquidistantPoints

public final Point2D.Float[] getEquidistantPoints(int n)

Dividing the loop into n equidistant segments of length d, so n * d = 2 * r * PI is the circumference of the loop, this routine returns the n + 1 loop points that are i * d away from P1, where 0 <= i <= n.

Parameters:

n - The number of segments to divide the loop.

Returns:

The equidistant points of the loop.

getLaTexRadius

protected float getLaTexRadius(float scaleFactor)

Returns a radius which is used by the latexCommand method.

Parameters:

scaleFactor - A scale factor.

Returns:

The latex radius.

getLaTexAngles

protected Point2D getLaTexAngles()

Returns an angle which is used by the latexCommand method. This is basically the relative angle between the center and the second (release) point of the loop.

Returns:

A Point2D object with x-component the starting angle and y-component the starting angle + 360.

getObjectPath

protected abstract GeneralPath getObjectPath()

Get the GeneralPath that paints this loop.

Returns:

GeneralPath. May be null for an object that cannot be painted.

getAxo4JOptions

protected abstract String getAxo4JOptions(float scale)

Return the option part of the LaTeX command for this line.

Parameters:

scale - the axodraw4j scale factor.

Returns:

the option String.