cgl.narada.topology.viewer
Class PositionCalculation

java.lang.Object
  cgl.narada.topology.viewer.PositionCalculation

public class PositionCalculation
extends Object

This class consists of all the methods that are relevant to the calculation related to the node-positions on the screen.

Field Summary

static double

MAX_VALUE

Constructor Summary

PositionCalculation()

Method Summary

static Node	getNearestNode(List nodeList, int clickedX, int clickedY) Returns component nearest to the specified coordinates.
static List	getNewPositions(Position reference, int numberOfNodes, int level) Returns List of new positions to be assigned to all nodes one level below inside the component
static Color	getNodeColor(int level) Returns node color depending upon its level.

Methods inherited from class java.lang.Object

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

Field Detail

MAX_VALUE

public static double MAX_VALUE

Constructor Detail

PositionCalculation

public PositionCalculation()

Method Detail

getNewPositions

public static List getNewPositions(Position reference,
                                   int numberOfNodes,
                                   int level)

Returns List of new positions to be assigned to all nodes one level below inside the component

Parameters:

reference - Position of a reference center about which other centers are being placed.

numberOfNodes - number of components at particular level.

level - level of a component in the four level hierarchy.

Returns:

List of Position objects

getNodeColor

public static Color getNodeColor(int level)

Returns node color depending upon its level.

Parameters:

level - level of a component in a four level hierarchy.

Returns:

Color of a node at specified level.

getNearestNode

public static Node getNearestNode(List nodeList,
                                  int clickedX,
                                  int clickedY)

Returns component nearest to the specified coordinates.

Parameters:

nodeList - List of components.

clickedX - X-coordinate

clickedY - Y-coordinate

Returns:

nearest Node. null if no such node is found.