Package org.jgrapht.ext
Class MatrixExporter<V,E>
java.lang.Object
org.jgrapht.ext.MatrixExporter<V,E>
Exports a graph to a plain text matrix format, which can be processed by
matrix manipulation software, such as
MTJ or MATLAB.
- Author:
- Charles Fry
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoid
exportAdjacencyMatrix
(Writer output, DirectedGraph<V, E> g) Exports the specified graph into a plain text file format containing a sparse representation of the graph's adjacency matrix.void
exportAdjacencyMatrix
(Writer output, UndirectedGraph<V, E> g) Exports the specified graph into a plain text file format containing a sparse representation of the graph's adjacency matrix.void
exportLaplacianMatrix
(Writer output, UndirectedGraph<V, E> g) Exports the specified graph into a plain text file format containing a sparse representation of the graph's Laplacian matrix.void
exportNormalizedLaplacianMatrix
(Writer output, UndirectedGraph<V, E> g) Exports the specified graph into a plain text file format containing a sparse representation of the graph's normalized Laplacian matrix.
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Constructor Details
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MatrixExporter
public MatrixExporter()Creates a new MatrixExporter object.
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Method Details
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exportAdjacencyMatrix
Exports the specified graph into a plain text file format containing a sparse representation of the graph's adjacency matrix. The value stored in each position of the matrix indicates the number of edges between two vertices. With an undirected graph, the adjacency matrix is symetric.- Parameters:
output
- the writer to which the graph to be exported.g
- the graph to be exported.
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exportAdjacencyMatrix
Exports the specified graph into a plain text file format containing a sparse representation of the graph's adjacency matrix. The value stored in each position of the matrix indicates the number of directed edges going from one vertex to another.- Parameters:
output
- the writer to which the graph to be exported.g
- the graph to be exported.
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exportLaplacianMatrix
Exports the specified graph into a plain text file format containing a sparse representation of the graph's Laplacian matrix. Laplacian matrices are only defined for simple graphs, so edge direction, multiple edges, loops, and weights are all ignored when creating the Laplacian matrix. If you're unsure about Laplacian matrices, see: http://mathworld.wolfram.com/LaplacianMatrix.html.- Parameters:
output
- the writer to which the graph is to be exported.g
- the graph to be exported.
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exportNormalizedLaplacianMatrix
Exports the specified graph into a plain text file format containing a sparse representation of the graph's normalized Laplacian matrix. Laplacian matrices are only defined for simple graphs, so edge direction, multiple edges, loops, and weights are all ignored when creating the Laplacian matrix. If you're unsure about normalized Laplacian matrices, see: http://mathworld.wolfram.com/LaplacianMatrix.html.- Parameters:
output
- the writer to which the graph is to be exported.g
- the graph to be exported.
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