Class Element

java.lang.Object
   |
   +----Element

public abstract class Element

extends Object

implements ToolTips

Element()

Constructs basic Element.

checkVoltage(int, double, double)

Function used to check the result of calculation, when more than one result obtained

connect()

This function runs once, when the graph for the simulation was built, but the simulation hasn't started yet.

getContVertex(int)

Get vertex of specified contact

getCurrent(int, double)

Main function for calculations.

getImage(int)

Returns image for this element.

getImage(int, double)

Returns image for this element.

getInfo(int)

Returns information for this element, such as voltage, current etc.

getLastCurrent(int)

Returns last current in given direction

getTip(int)

Returns tool tip for this element.

getTipLocation(Container)

Returns tool tip location for this element.

hasContact(int)

Check if contact exist.

initImages(Applet)

Load all images.

isVertexSet(int)

Check if vertex seted to specified contact

paint(Graphics, int, Dimension, boolean, boolean)

Paints the element on the given graphic context.

parseString(String)

This method is called to load new values to element from string.

reset()

Function resets element conditions.

setContVertex(int, Vertex)

Set vertex to specified contact

showPropertiesDialog(Frame)

toString()

Returns a string representation of the object.

valueOf(double, int)

Return real value of propertie, by calculating it using unit's order

vertexReset()

Reset all vertice to null

 public Element()

Constructs basic Element.

 public boolean hasContact(int dir)

Check if contact exist.

Parameters:

dir - direction on contact

Returns:

returns true if contact exists

 public void setContVertex(int dir,
                           Vertex vert)

Set vertex to specified contact

Parameters:

dir - direction of contact

vert - vertex to connect

 public Vertex getContVertex(int dir)

Get vertex of specified contact

Parameters:

dir - direction of contact

 public boolean isVertexSet(int dir)

Check if vertex seted to specified contact

Parameters:

dir - direction to check

Returns:

true if it is and false otherwise

 public void vertexReset()

Reset all vertice to null

 public void showPropertiesDialog(Frame f)

 public double valueOf(double val,
                       int order)

Return real value of propertie, by calculating it using unit's order

Parameters:

val - properte's value

order - units' order

Returns:

a real value of propertie.

 public boolean checkVoltage(int dir,
                             double timeStep,
                             double newVoltage)

Function used to check the result of calculation, when more than one result obtained

Parameters:

dir - direction of contact

timeStep - time step of iteration

newVoltage - result to check

 public String toString()

Returns a string representation of the object.

Returns:

a string representation of the object.

Overrides:

toString in class Object

 public void parseString(String values) throws ParseException

This method is called to load new values to element from string. String should be like "value,order;value,order;etc.".

Parameters:

values - new values for element in string in format given above.

Throws: ParseException

if string format is incorrect.

 public abstract Polynom getCurrent(int dir,
                                    double timeStep)

Main function for calculations. Returns polynom with coefficients, while the variable X is voltage of specified connection, and result of polynom is current. i = a*V^2 + b*V + c : a, b & c are returned.

Parameters:

dir - direction of current - NORTH, SOUTH, WEST or EAST.

timeStep - current time step.

Returns:

polynom of current for KCL.

 public Polynom getLastCurrent(int dir)

Returns last current in given direction

Parameters:

dir - direction of current - NORTH, SOUTH, WEST or EAST.

Returns:

polynom of last current in the element.

 public void reset()

Function resets element conditions. Called each time new graph is build.

 public void initImages(Applet theApplet)

Load all images. Called once.

Parameters:

theApplet - instace of current applet

 public Image getImage(int angle)

Returns image for this element.

Parameters:

angle - angle of current graphical representation for the element.

Returns:

image of the element.

 public Image getImage(int angle,
                       double time)

Returns image for this element.

Parameters:

angle - angle of current graphical representation for the element.

time - current time

Returns:

image of the element.

 public String[] getInfo(int angle)

Returns information for this element, such as voltage, current etc.

Parameters:

angle - angle of current graphical representation for the element.

Returns:

array of Strings with information.

 public String getTip(int type)

Returns tool tip for this element.

Parameters:

type - type of tip receiver: 1 - for Matrix, 0 - for other.

Returns:

the tool tip.

 public Point getTipLocation(Container painter)

Returns tool tip location for this element.

Parameters:

painter - container which will paint this tip.

Returns:

location for the tool tip.

 public void connect()

This function runs once, when the graph for the simulation was built, but the simulation hasn't started yet. Can be overriden to make any action at this time.

 public void paint(Graphics g,
                   int angle,
                   Dimension size,
                   boolean isSimulating,
                   boolean animated)

Paints the element on the given graphic context.

Parameters:

g - the graphic context

angle - how much the element is rotated

size - size of element on the screen

isSimulating - is the applet simulating now

animated - is the element should be animated or should be static like in Toolbar