Jcg.graph.drawing

Class SpectralDrawing_2<X extends Point_>

java.lang.Object

Jcg.graph.drawing.GraphDrawing<X>

Jcg.graph.drawing.SpectralDrawing_2<X>

Direct Known Subclasses:

SpectralDrawing_3

public class SpectralDrawing_2<X extends Point_>
extends GraphDrawing<X>

Provides methods for drawing graphs in 2D using spectral based methods

Author:

Luca Castelli Aleardi

Constructor Summary

Constructors

Constructor and Description
SpectralDrawing_2()
SpectralDrawing_2(ArrayBasedGraph g)
SpectralDrawing_2(int n)

Method Summary

Modifier and Type	Method and Description
Jama.Matrix	AdjacencyMatrix() computes and returns the adjacency matrix of a graph
Point_2	computeCoordinates_2(int i, double[] eigenvalues, double[][] eigenvectors)
void	computeDrawing() (abstract method) compute the geometric representation of the graph
double[]	Eigenvalues(Jama.Matrix m)
double[][]	Eigenvectors(Jama.Matrix m)
Jama.Matrix	LaplacianMatrix() computes and returns the laplacian matrix of a graph

Methods inherited from class Jcg.graph.drawing.GraphDrawing

dimension, draw2D, draw3D, getPoint, getPoint2, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

SpectralDrawing_2

public SpectralDrawing_2()

SpectralDrawing_2

public SpectralDrawing_2(int n)

SpectralDrawing_2

public SpectralDrawing_2(ArrayBasedGraph g)

Method Detail

AdjacencyMatrix

public Jama.Matrix AdjacencyMatrix()

computes and returns the adjacency matrix of a graph

LaplacianMatrix

public Jama.Matrix LaplacianMatrix()

computes and returns the laplacian matrix of a graph

Eigenvalues

public double[] Eigenvalues(Jama.Matrix m)

Eigenvectors

public double[][] Eigenvectors(Jama.Matrix m)

computeCoordinates_2

public Point_2 computeCoordinates_2(int i,
                                    double[] eigenvalues,
                                    double[][] eigenvectors)

computeDrawing

public void computeDrawing()

Description copied from class: GraphDrawing

(abstract method) compute the geometric representation of the graph

Specified by:

computeDrawing in class GraphDrawing<X extends Point_>