devisor2.foundation.elements
Class Node

java.lang.Object
  devisor2.foundation.GridItem
      devisor2.foundation.elements.Node

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

BoundaryNode

public class Node

extends GridItem

implements java.io.Serializable

This class represents a node of a grid. As all foundation classes, a node can draw itself and provides convenience methods to support the GridListener and the GridSelector.

See Also:

Serialized Form

Field Summary

protected int[]	coord cartesian coordinates of the node
protected int	index index of the node, read in mesh file
protected int	marker marker variable
protected int	npr boundary information variable
protected int	number number of the node, updated by updateNodeNumbers()
java.util.Vector	parents The edges which contains this node
protected double[]	value The values of the node

Fields inherited from class devisor2.foundation.GridItem

cc, marked, transformed, xmax, xmin, ymax, ymin

Constructor Summary

Node()
Creates a zero node

Node(int xx, int yy)
Creates a node at (x,y) without values

Node(int xx, int yy, Edge p)
Creates a node at (x,y) in an edge p

Node(int xx, int yy, int nbValues)
Creates a node at (x,y) with nbValues values

Method Summary

void	addParent(Edge p) addParent adds the given edge p to the parent vector
java.lang.Object	clone() creates a new Node with a copy of the data of this Node
void	draw(java.awt.Graphics g) draws the node to Graphics context g
boolean	equals(Node n, double eps) determines if two nodes located at the same place
boolean	equals2(Node n, double eps)
int[]	getCoord() gets the coordinate vector of the Node
int	getCoord(int i) gets the coordinate i of the Node
java.util.Vector	getFathers()
int	getMarker() gets the marker of the node.
int	getNPR() setNPR returns the nodal property
int	getNumber() gets the number of the node.
double[]	getParameters() returns all parameters of the griditem in an int array
int[]	getParams()
Edge[]	getParents() getParents() returns the parent edges as array of edges
java.awt.Rectangle	getPerimeter() calculates the perimeter of this node.
double	getValue(int i) gets an value of the node
void	interpolate(Node noeud1, Node noeud2, double coeff) set an interpolated node between noeud1 and noeud2 related to parameter coeff
boolean	isHit(int x, int y) Has a node been hit by a click on the given coordinates? This method works in screen coordinates only because it is pure convenience for the GridSelector class.
boolean	isInside(int[] topleft, int[] bottomright) Are we inside of a give 2D area ?
void	performMirror(double nx, double ny, double px, double py) This method mirrors the node at the given line
void	performTransformation(GridTransformation trf) applies the given affine transformation to the node
boolean	removeParent(Edge p) delParent deletes the given edge p from the parent vector
void	setCoord(int[] xx) setCoord sets the coordinates of the node
void	setCoord(int xx, int yy) setCoords sets the coordinates of the node
void	setCoord(int xx, int yy, int m) setCoord sets the coordinates of the node and the marker
void	setCoord(Node n) sets the coordinates of the actual node to the coordinates of Node n
void	setMarker(int n) sets the marker of the node to n.
void	setNPR(int unpr) setNPR sets the nodal property
void	setNumber(int i) Sets the number of the node to i.
void	setParameters(double[] params) sets the parameters to the given ones
void	setParams(int[] prm)
void	setValue(int i, double val) Sets the values of the node
java.lang.String	toString() prints the node's coordinates to the standard output

Methods inherited from class devisor2.foundation.GridItem

clearTransformedFlag, isMarked, setMarker, setMarker, unsetMarker

Methods inherited from class java.lang.Object

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

Field Detail

coord

protected int[] coord

cartesian coordinates of the node

value

protected double[] value

The values of the node

parents

public java.util.Vector parents

The edges which contains this node

number

protected int number

number of the node, updated by updateNodeNumbers()

index

protected int index

index of the node, read in mesh file

marker

protected int marker

marker variable

npr

protected int npr

boundary information variable

Constructor Detail

Node

public Node()

Creates a zero node

Node

public Node(int xx,
            int yy)

Creates a node at (x,y) without values

Node

public Node(int xx,
            int yy,
            Edge p)

Creates a node at (x,y) in an edge p

Node

public Node(int xx,
            int yy,
            int nbValues)

Creates a node at (x,y) with nbValues values

Method Detail

setNPR

public void setNPR(int unpr)

setNPR sets the nodal property

Parameters:

unpr - nodal property

getNPR

public int getNPR()

setNPR returns the nodal property

getParents

public Edge[] getParents()

getParents() returns the parent edges as array of edges

getFathers

public java.util.Vector getFathers()

addParent

public void addParent(Edge p)

addParent adds the given edge p to the parent vector

removeParent

public boolean removeParent(Edge p)

delParent deletes the given edge p from the parent vector

getParameters

public double[] getParameters()

Description copied from class: GridItem

returns all parameters of the griditem in an int array

Specified by:

getParameters in class GridItem

Returns:

all parameters of the node

getParams

public int[] getParams()

setParams

public void setParams(int[] prm)

setParameters

public void setParameters(double[] params)

sets the parameters to the given ones

Specified by:

setParameters in class GridItem

setNumber

public void setNumber(int i)

Sets the number of the node to i.

getNumber

public int getNumber()

gets the number of the node.

getMarker

public int getMarker()

gets the marker of the node.

setMarker

public void setMarker(int n)

sets the marker of the node to n.

setCoord

public void setCoord(int xx,
                     int yy)

setCoords sets the coordinates of the node

setCoord

public void setCoord(int[] xx)

setCoord sets the coordinates of the node

setCoord

public void setCoord(int xx,
                     int yy,
                     int m)

setCoord sets the coordinates of the node and the marker

setCoord

public void setCoord(Node n)

sets the coordinates of the actual node to the coordinates of Node n

Parameters:

n - Node to be copied

Returns:

none

getCoord

public int[] getCoord()

gets the coordinate vector of the Node

getCoord

public int getCoord(int i)

gets the coordinate i of the Node

setValue

public void setValue(int i,
                     double val)

Sets the values of the node

Parameters:

i - index of the value

Returns:

none

getValue

public double getValue(int i)

gets an value of the node

Parameters:

i - index of the value

Returns:

selected value

clone

public java.lang.Object clone()

creates a new Node with a copy of the data of this Node

Returns:

Node

toString

public java.lang.String toString()

prints the node's coordinates to the standard output

Returns:

none

draw

public void draw(java.awt.Graphics g)

draws the node to Graphics context g

Specified by:

draw in class GridItem

interpolate

public void interpolate(Node noeud1,
                        Node noeud2,
                        double coeff)

set an interpolated node between noeud1 and noeud2 related to parameter coeff

Parameters:

noeud1 - Node 1

noeud2 - Node 2

coeff - Range

Returns:

none

equals

public boolean equals(Node n,
                      double eps)

determines if two nodes located at the same place

Parameters:

n - node

eps - accuracy

Returns:

the same? yes/no

equals2

public boolean equals2(Node n,
                       double eps)

isInside

public boolean isInside(int[] topleft,
                        int[] bottomright)

Are we inside of a give 2D area ?

Specified by:

isInside in class GridItem

Parameters:

topleft - - the topleft corner of the rectangle

bottomright - - the bottom right corner of the rectangle

Returns:

is inside ? yes/no

isHit

public boolean isHit(int x,
                     int y)

Has a node been hit by a click on the given coordinates? This method works in screen coordinates only because it is pure convenience for the GridSelector class. On the other hand, the tolerance factor is unspecified in world coordinates.

Specified by:

isHit in class GridItem

Returns:

true if the item has been hit

getPerimeter

public java.awt.Rectangle getPerimeter()

calculates the perimeter of this node. Thus a node is a Point, the differences between calculated limits are 0

Specified by:

getPerimeter in class GridItem

Returns:

Perimeter of this node

performTransformation

public void performTransformation(GridTransformation trf)

applies the given affine transformation to the node

Specified by:

performTransformation in class GridItem

Parameters:

trf - - homonenous world coords

performMirror

public void performMirror(double nx,
                          double ny,
                          double px,
                          double py)

This method mirrors the node at the given line

Specified by:

performMirror in class GridItem