Public Methods in Poisson

This documentation is machine generated from the Java source file.  All methods in the applet are listed as a reference for the JavaScript programmer.  Caution is advised.  Not all methods are useful for JavaScript to Java communication. Please refer to the sample scripts to see how various methods are used.

Index

Class poisson.Poisson 

java.lang.Object
   |
   +----java.awt.Component
           |
           +----java.awt.Container
                   |
                   +----java.awt.Panel
                           |
                           +----java.applet.Applet
                                   |
                                   +----poisson.Poisson
public class Poisson
extends Applet

Constructor Index

o Poisson()
 

Method Index

o addCircle(double, double, int, double)
Add a circular conductor with a fixed voltage.
o addCircleCharge(double, double, int, double)
Add a circular charge distribution.
o addRectangle(double, double, int, int, double)
Add a rectangular conductor with a fixed voltage.
o addRectangleCharge(double, double, int, int, double)
Add a rectangular charge distribution.
o destroy()
 
o getAppletInfo()
 
o getParameter(String, String)
 
o getParameterInfo()
 
o init()
 
o setBtnOff()
 
o setCaption(String)
Set the caption.
o setConductorRGB(int, int, int)
Set the color for all subsequent drawing.
o setDefault()
Set the default values: grid=false, fild vectors=false,contours=true, drag=false, no E and no V on mouse drag.
o setDrawChargeDensity(int)
 
o setNoDrag(int)
No drag for all subsequent objects.
o setShowContours(int)
Turn contours off and on.
o setShowEOnDrag(int)
Show the magnitude of the electric field when the mouse is dragged.
o setShowFieldVectors(int)
Turn field vectors off and on.
o setShowGrid(int)
Turn grid off and on.
o setShowRhoOnDrag(int)
Show the charge density when the mouse is dragged.
o setShowVOnDrag(int)
Show the charge voltage when the mouse is dragged.
o setXRange(double, double)
Set the scale using the horizontal axis.
o setYRange(double, double)
 
o start()
 
o stop()
 

Constructors

o Poisson 

 public Poisson()

Methods

o getParameter 

 public String getParameter(String key,
                            String def)

o init 

 public void init()
Overrides:
init in class Applet

o start 

 public void start()
Overrides:
start in class Applet

o stop 

 public void stop()
Overrides:
stop in class Applet

o destroy 

 public void destroy()
Overrides:
destroy in class Applet

o addCircle 

 public void addCircle(double x,
                       double y,
                       int r,
                       double v)
Add a circular conductor with a fixed voltage.
Parameters:
x - x postion of center
y - y postion of center
r - radius in pixels
v - voltage of conductor

o addCircleCharge 

 public void addCircleCharge(double x,
                             double y,
                             int r,
                             double q)
Add a circular charge distribution.
Parameters:
x - x postion of center
y - y postion of center
r - radius in pixels
q - charge

o addRectangle 

 public void addRectangle(double x,
                          double y,
                          int w,
                          int h,
                          double q)
Add a rectangular conductor with a fixed voltage.
Parameters:
x - x postion of center
y - y postion of center
w - width in pixels
h - height in pixels
v - voltage of conductor

o addRectangleCharge 

 public void addRectangleCharge(double x,
                                double y,
                                int w,
                                int h,
                                double v)
Add a rectangular charge distribution.
Parameters:
x - x postion of center
y - y postion of center
w - width in pixels
h - height in pixels
q - charge

o getAppletInfo 

 public String getAppletInfo()
Overrides:
getAppletInfo in class Applet

o setBtnOff 

 public void setBtnOff()

o setCaption 

 public void setCaption(String caption)
Set the caption.
Parameters:
caption - The applet caption.

o setConductorRGB 

 public void setConductorRGB(int r,
                             int g,
                             int b)
Set the color for all subsequent drawing.
Parameters:
r - 0 g - 0 b - 0

o setDefault 

 public void setDefault()
Set the default values: grid=false, fild vectors=false,contours=true, drag=false, no E and no V on mouse drag.

o setNoDrag 

 public void setNoDrag(int nd)
No drag for all subsequent objects.
Parameters:
nd - NoDrag parameter; nd=0 turns drag off, nd=1 turns drag on.

o setShowFieldVectors 

 public void setShowFieldVectors(int sfv)
Turn field vectors off and on.
Parameters:
sfv - ShowFieldVector parameter; sfv=0 turns field vectors off, sfv=1 turns field vectors on.

o setShowContours 

 public void setShowContours(int sc)
Turn contours off and on.
Parameters:
sc - Show contours parameter; sc=0 turns contours off, sc=1 turns contours on.

o setShowGrid 

 public void setShowGrid(int sg)
Turn grid off and on.
Parameters:
sg - Show grid parameter; sg=0 turns grid off, sg=1 turns grid on.

o setDrawChargeDensity 

 public void setDrawChargeDensity(int scd)

o setXRange 

 public void setXRange(double xmin,
                       double xmax)
Set the scale using the horizontal axis. The leftmost pixel will be xmin. The rightmost pixel will be xmax. The vertical axis will be rescaled to maintian an aspect ratio of one.
Parameters:
xmin - Minimuum value on x axis.
xmax - Maximum value on x axis.

o setYRange 

 public void setYRange(double ymin,
                       double ymax)

o setShowEOnDrag 

 public void setShowEOnDrag(int se)
Show the magnitude of the electric field when the mouse is dragged.
Parameters:
se - Show electric field on drag; se=0 turns it off, se=1 turns it on.

o setShowRhoOnDrag 

 public void setShowRhoOnDrag(int sr)
Show the charge density when the mouse is dragged.
Parameters:
sr - Show charge density on drag; sr=0 turns it off, sr=1 turns it on.

o setShowVOnDrag 

 public void setShowVOnDrag(int sv)
Show the charge voltage when the mouse is dragged.
Parameters:
sv - Show voltage on drag; sv=0 turns it off, sv=1 turns it on.

o getParameterInfo 

 public String[][] getParameterInfo()
Overrides:
getParameterInfo in class Applet 
Index