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Class edu.cornell.lassp.mck10.HysteresisApplet.AutoFitButton

java.lang.Object
   |
   +----java.awt.Component
           |
           +----java.awt.Button
                   |
                   +----edu.cornell.lassp.mck10.HysteresisApplet.AutoFitButton

public class AutoFitButton

extends Button

implements Observer, XYConsumer

Source Code is available.

Version:

1.0

Author:

Matt Kuntz (e-mail: mck10@cornell.edu)

AutoFitButton(HysteresisLattice, LoopView, String)

the AutoFitButton(model,loop,name) constructor is used to create a new button attatched to a particular model and view, with the label given in the String name.

action(Event, Object)

action(e,o) is called when the button is pressed.

fit()

fit() can be called from outside the class to zoom in on the hysteresis loop without the user pressing the button.

notify(XYPair, XYProducer)

notify(XY,prod) is called when there is a new point in the hysteresis loop.

update(Observable, Object)

update(obs,obj) is called whenever the parameters of the simulation are changed.

  public AutoFitButton(HysteresisLattice model,
                       LoopView loop,
                       String name)

the AutoFitButton(model,loop,name) constructor is used to create a new button attatched to a particular model and view, with the label given in the String name.

Parameters:

model - The model we are displaying.

loop - The view we are zooming in on.

name - The label for the button.

  public boolean action(Event e,
                        Object o)

action(e,o) is called when the button is pressed. When this happens, we want to zoom in to the present size of the hysteresis loop.

Parameters:

e - The event that has occurred.

o - An unused parameter.

Overrides:

action in class Component

  public void notify(XYPair XY,
                     XYProducer prod)

notify(XY,prod) is called when there is a new point in the hysteresis loop. We need to check to see if the new point changes the size of the hysteresis loop.

Parameters:

XY - The new point on the hysteresis loop.

prod - The model which produced the point.

  public void update(Observable obs,
                     Object obj)

update(obs,obj) is called whenever the parameters of the simulation are changed. If this happens, there is a new hysteresis loop, and we need to change all of our parameters.

Parameters:

obs - The observable variable which has changed.

obj - An unused parameter.

  public void fit()

fit() can be called from outside the class to zoom in on the hysteresis loop without the user pressing the button. This is used to zoom in after a hysteresis loop has been automatically generated.

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