Class Odes 

java.lang.Object
   |
   +----java.awt.Component
           |
           +----java.awt.Container
                   |
                   +----java.awt.Window
                           |
                           +----java.awt.Frame
                                   |
                                   +----ChaosDemos.dynamicGraph
                                           |
                                           +----Odes
public class Odes
extends dynamicGraph
Iterates and plots the chaos models described by coupled ODEs.
Uses the "Java Graph Class Library" by Leigh Brookshaw

Version:
3 August, 1997
Author:
Michael Cross

Variable Index

o a
function parameter
o aThread
o buttons
o choices
o clicked
true after first mouse click
o delay
o documentBase
location of marker.txt
o function
function type
o functionChoice
o ghostTime
o graph
o marker
input marker size
o markerScale
marker size
o markerType
type of marker (see marker.txt)
o ncurve
number of curves
o nVariables
number of variables (icluding time)
o odesFunction
o parameters
o plot
plot type
o plotChoice
o showGhost
true if ghost to be showed
o showTime
true if time to be displayed
o solver
o status
o topRightPanel
o transientColor
color of ghost
o variables
o xmax
o xmin
o xmouse
o ymax
o ymin
o ymouse

Constructor Index

o Odes(startOdes, URL)

Method Index

o derivs(double[], double, int)
Returns RHS of differential equations for Lorenz model
o disableAll()
Disables text input and choice controls
o enableAll()
Enables text input and choice contorls
o handleEvent(Event)
Event handler: Stops iteration on minimising and handles close window event
(May fail under Windows95)
o iterate()
Iterates ODE and updates graph
o movieStart()
Start movie thread
o movieStop()
Stop movie thread
o respondToButtons(int)
Respond to buttonControls
o respondToChoices()
Responds to choiceControls
o respondToMouse(double, boolean, double, boolean)
Responds to mouse events
o respondToText()
Responds to textControls
o restart()
Resets plot by deleting all curves and restarting
o stop()
Stop movie thread
o updateParameters()
Updates parameters from the text controls
o updateSpeed(int)

Variables

o graph 
 superGraph2D graph
o solver 
 ode solver
o odesFunction 
 OdesFunction odesFunction
o aThread 
 Thread aThread
o variables 
 textControls variables
o parameters 
 textControls parameters
o buttons 
 buttonControls buttons
o choices 
 choiceControls choices
o topRightPanel 
 Panel topRightPanel
o plotChoice 
 Choice plotChoice
o functionChoice 
 Choice functionChoice
o status 
 Label status
o documentBase 
 URL documentBase
location of marker.txt

o marker 
 double marker
input marker size

o markerScale 
 double markerScale
marker size

o markerType 
 int markerType
type of marker (see marker.txt)

o clicked 
 boolean clicked
true after first mouse click

o showTime 
 boolean showTime
true if time to be displayed

o showGhost 
 boolean showGhost
true if ghost to be showed

o nVariables 
 int nVariables
number of variables (icluding time)

o ncurve 
 int ncurve
number of curves

o plot 
 int plot
plot type

o function 
 int function
function type

o ghostTime 
 double ghostTime
o delay 
 int delay
o xmin 
 double xmin
o xmax 
 double xmax
o ymin 
 double ymin
o ymax 
 double ymax
o xmouse 
 double xmouse
o ymouse 
 double ymouse
o a 
 double a[]
function parameter

o transientColor 
 Color transientColor
color of ghost

Constructors

o Odes 
 Odes(startOdes target,
      URL in_documentBase)
Parameters:
target - starting class
See Also:
startLor

Methods

o respondToText 
 public void respondToText()
Responds to textControls

Overrides:
respondToText in class dynamicGraph
See Also:
textControls
o respondToChoices 
 public void respondToChoices()
Responds to choiceControls

Overrides:
respondToChoices in class dynamicGraph
See Also:
choiceControls
o respondToButtons 
 public void respondToButtons(int buttonIndex)
Respond to buttonControls

Parameters:
buttonIndex - index of button pushed
Overrides:
respondToButtons in class dynamicGraph
See Also:
buttonControls
o movieStop 
 public void movieStop()
Stop movie thread

o movieStart 
 public void movieStart()
Start movie thread

o handleEvent 
 public boolean handleEvent(Event evt)
Event handler: Stops iteration on minimising and handles close window event
(May fail under Windows95)

Overrides:
handleEvent in class Component
o disableAll 
 public void disableAll()
Disables text input and choice controls

o enableAll 
 public void enableAll()
Enables text input and choice contorls

o derivs 
 public double[] derivs(double x[],
                        double t,
                        int n)
Returns RHS of differential equations for Lorenz model

Parameters:
x[] - vector of current value of dependent variables
n - number of dependent variables in array x[]
t - current value of independent variable
Returns:
n compoent vector giving derivatives of dependent variables
Overrides:
derivs in class dynamicGraph
o updateParameters 
 public void updateParameters()
Updates parameters from the text controls

o restart 
 public boolean restart()
Resets plot by deleting all curves and restarting

o iterate 
 public boolean iterate()
Iterates ODE and updates graph

Overrides:
iterate in class dynamicGraph
o stop 
 public void stop()
Stop movie thread

o updateSpeed 
 public void updateSpeed(int in_delay)
Overrides:
updateSpeed in class dynamicGraph
o respondToMouse 
 public void respondToMouse(double xcoord,
                            boolean xcoordValid,
                            double ycoord,
                            boolean ycoordValid)
Responds to mouse events

Parameters:
xcoord - x-coordinate of mouse click
xcoordValid - true if x-coordinate of mouse click within graph
ycoord - y-coordinate of mouse click
ycoordValid - true if y-coordinate of mouse click within graph
Overrides:
respondToMouse in class dynamicGraph