aminePlatform.util.graph
Class RelaxGraph

java.lang.Object
  aminePlatform.util.graph.RelaxGraph

public class RelaxGraph

extends java.lang.Object

Title : RelaxGraph

Description : RelaxGraph is an adaptation of a class (ForceDirectedLayout) defined by Salvo Jesus in his Open Source OpenJGraph soft.

Constructor Summary

RelaxGraph(VisualGraph vGraph)

Method Summary

void	addFixedNode(VisualNode vNode) Adds a VisuaLNode that will not be moved from its position during the layout operation of ForceDirectedLayout.
void	doRelaxGraph(Lexicon lexicon)
double	getEletricalRepulsion() Returns the eletrical repulsion between all vertices The default value is 400.
double	getIncrement() Returns the increment by which the vertices gets closer to the equilibrium or closer to the force.
double	getSpringLength() Returns the desired spring length for all edges.
double	getStiffness() Returns the stiffness for all edges.
boolean	isInitialized() Determines if the graph has been initially laid out.
boolean	isNodeFixed(VisualNode vNode) Returns true if the specified VisualNode has a fixed position.
void	removeFixedNode(VisualNode vNode) Removes a VisualNode from the list of VisualVertices that has a fixed position.
void	setEletricalRepulsion(double repulsion) Sets the value of the electrical repulsion between all vertices
void	setIncrement(double increment) Sets the increment by which the vertices gets close to the equilibrium or gets closer to the direction of the force.
void	setSpringLength(double length) Sets the desired length of the spring among all edges
void	setStiffness(double stiffness) Sets the value of stiffness among all edges

Methods inherited from class java.lang.Object

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

Constructor Detail

RelaxGraph

public RelaxGraph(VisualGraph vGraph)

Method Detail

getSpringLength

public double getSpringLength()

Returns the desired spring length for all edges. The default value is 50.

getStiffness

public double getStiffness()

Returns the stiffness for all edges. The default value is 50.

getEletricalRepulsion

public double getEletricalRepulsion()

Returns the eletrical repulsion between all vertices The default value is 400.

getIncrement

public double getIncrement()

Returns the increment by which the vertices gets closer to the equilibrium or closer to the force. The default value is 0.50.

setSpringLength

public void setSpringLength(double length)

Sets the desired length of the spring among all edges

setStiffness

public void setStiffness(double stiffness)

Sets the value of stiffness among all edges

setEletricalRepulsion

public void setEletricalRepulsion(double repulsion)

Sets the value of the electrical repulsion between all vertices

setIncrement

public void setIncrement(double increment)

Sets the increment by which the vertices gets close to the equilibrium or gets closer to the direction of the force. This must be a number > 0 and <= 1. The higher the value, the faster the layout reaches equilibrium.

addFixedNode

public void addFixedNode(VisualNode vNode)

Adds a VisuaLNode that will not be moved from its position during the layout operation of ForceDirectedLayout.

isNodeFixed

public boolean isNodeFixed(VisualNode vNode)

Returns true if the specified VisualNode has a fixed position.

removeFixedNode

public void removeFixedNode(VisualNode vNode)

Removes a VisualNode from the list of VisualVertices that has a fixed position.

isInitialized

public boolean isInitialized()

Determines if the graph has been initially laid out. This method should be called prior to any painting to be done by the graph layout manager, as most internal variables are only initialized during layout.

Returns:

True if the graph has at least been laid out once.

doRelaxGraph

public void doRelaxGraph(Lexicon lexicon)