vmm.planecurve.parametric
Class ConicSection

java.lang.Object
  vmm.core.Exhibit
      vmm.planecurve.PlaneCurve
          vmm.planecurve.parametric.PlaneCurveParametric
              vmm.planecurve.parametric.ConicSection

All Implemented Interfaces:

java.util.EventListener, javax.swing.event.ChangeListener, Decorateable, Parameterizable

Direct Known Subclasses:

Ellipse, Hyperbola, Parabola

public abstract class ConicSection
extends PlaneCurveParametric

A common base class for Elippse, Parabola, and Hyperbola, to show foci and "directrix" during morphing and extra stuff during the creation animation. Note that Circle is not a subclass of ConicSection since it does not have these extra decorations.

Nested Class Summary

Nested classes/interfaces inherited from class vmm.planecurve.parametric.PlaneCurveParametric

PlaneCurveParametric.PlaneCurveParametricView

Field Summary

Fields inherited from class vmm.planecurve.parametric.PlaneCurveParametric

tmax, tmin, tResolution, tVals

Fields inherited from class vmm.planecurve.PlaneCurve

movingSquare, points, randomSquare

Fields inherited from class vmm.core.Exhibit

decorations, exhibitNeedsRedraw, isMorphing, morphingView, parameters, previousTransform

Constructor Summary

ConicSection()

Method Summary

protected abstract void	drawFociAndDirectrix(java.awt.Graphics2D g, View view, Transform limits, double t) This is overridden in the sub-classes to do the actual drawing of the extra decorations.
Animation	getCreateAnimation(View view) Returns a creation animation that adds foci, directrix, and othe stuff during the animation.
BasicAnimator	getMorphingAnimation(View view, int looping) Returns a modified morphing animation that adds foci and directrix during the animation.

Methods inherited from class vmm.planecurve.parametric.PlaneCurveParametric

doDraw, getActionsForView, getDefaultView, getT, getTResolution, makePoints, myCircle, x2ndDerivativeValue, xDerivativeValue, xValue, y2ndDerivativeValue, yDerivativeValue, yValue

Methods inherited from class vmm.planecurve.PlaneCurve

computeDrawData, fillRandomSquare, getPoint, getPointCount, initializeMovingSquare, moveSquare

Methods inherited from class vmm.core.Exhibit

addChangeListener, addDecoration, addExtraXML, addParameter, addView, clearDecorations, computeDrawDataHook, doDrawHook, fireExhibitChangeEvent, forceRedraw, getAdditionalAnimationsForView, getAlternativeViews, getBuildAnimation, getDecorations, getDefaultBackground, getDefaultForeground, getDefaultTransform, getDefaultWindow, getFramesForMorphing, getName, getParameterByName, getParameters, getSettingsCommandsForView, getTitle, getUseFilmstripForMorphing, getViews, parameterChanged, readExtraXML, removeChangeListener, removeDecoration, removeParameter, removeView, render, setDefaultBackground, setDefaultForeground, setDefaultWindow, setDefaultWindow, setFramesForMorphing, setName, setUseFilmstripForMorphing, stateChanged

Methods inherited from class java.lang.Object

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

Constructor Detail

ConicSection

public ConicSection()

Method Detail

drawFociAndDirectrix

protected abstract void drawFociAndDirectrix(java.awt.Graphics2D g,
                                             View view,
                                             Transform limits,
                                             double t)

This is overridden in the sub-classes to do the actual drawing of the extra decorations.

getCreateAnimation

public Animation getCreateAnimation(View view)

Returns a creation animation that adds foci, directrix, and othe stuff during the animation.

Overrides:

getCreateAnimation in class PlaneCurveParametric

Parameters:

view - The View where the animation will be installed. If this is null, then the return value is null.

Returns:

A creation animation for the given View of this Exhibit. The return value can be null to indicate that no creation animation is to be run.

getMorphingAnimation

public BasicAnimator getMorphingAnimation(View view,
                                          int looping)

Returns a modified morphing animation that adds foci and directrix during the animation. The decoration is added to view, if it is non-null, and otherwise is added directly to this exhibit.

Overrides:

getMorphingAnimation in class Exhibit

Parameters:

view - The view that the animation will be shown in, if any. If the value is null, then the animation will not be associated with any particular view. In that case, the Morphing animation will animate the Exhibit in all Views in which it appears, since it operates by changing parameters of the exhibit. If the View is non-null, then only the specified View will receive changeEvents from the Exhibit while the morph is in progress.

looping - This must be one of the values BasicAnimator.ONCE, BasicAnimator.LOOP, or BasicAnimator.OSCILLATE. The value is passed, without any error checking, to the animation's setLooping method.

See Also:

TimerAnimation.setLooping(int), Exhibit.setFramesForMorphing(int)