| Line | Hits | Source |
|---|---|---|
| 1 | /* | |
| 2 | * Copyright (c) 2003, the JUNG Project and the Regents of the University | |
| 3 | * of California | |
| 4 | * All rights reserved. | |
| 5 | * | |
| 6 | * This software is open-source under the BSD license; see either | |
| 7 | * "license.txt" or | |
| 8 | * http://jung.sourceforge.net/license.txt for a description. | |
| 9 | */ | |
| 10 | package edu.uci.ics.jung.algorithms; | |
| 11 | ||
| 12 | import edu.uci.ics.jung.algorithms.MatrixElementOperations; | |
| 13 | import edu.uci.ics.jung.graph.Edge; | |
| 14 | import edu.uci.ics.jung.utils.MutableDouble; | |
| 15 | import edu.uci.ics.jung.utils.UserData; | |
| 16 | ||
| 17 | /** | |
| 18 | * Implements the basic matrix operations on double-precision values. Assumes | |
| 19 | * that the edges have a MutableDouble value. | |
| 20 | * | |
| 21 | * @author Joshua O'Madadhain | |
| 22 | */ | |
| 23 | public class RealMatrixElementOperations implements MatrixElementOperations | |
| 24 | { | |
| 25 | private String EDGE_KEY; | |
| 26 | ||
| 27 | public RealMatrixElementOperations(String edge_key) | |
| 28 | 3 | { |
| 29 | 3 | EDGE_KEY = edge_key; |
| 30 | 3 | } |
| 31 | ||
| 32 | /** | |
| 33 | * @see MatrixElementOperations#mergePaths(Edge, Object) | |
| 34 | */ | |
| 35 | public void mergePaths(Edge e, Object pathData) | |
| 36 | { | |
| 37 | 21 | MutableDouble pd = (MutableDouble)pathData; |
| 38 | 21 | MutableDouble ed = (MutableDouble)e.getUserDatum(EDGE_KEY); |
| 39 | 21 | if (ed == null) |
| 40 | 18 | e.addUserDatum(EDGE_KEY, pd, UserData.SHARED); |
| 41 | else | |
| 42 | 3 | ed.add(pd.doubleValue()); |
| 43 | 21 | } |
| 44 | ||
| 45 | /** | |
| 46 | * @see MatrixElementOperations#computePathData(Edge, Edge) | |
| 47 | */ | |
| 48 | public Object computePathData(Edge e1, Edge e2) | |
| 49 | { | |
| 50 | 21 | double d1 = ((MutableDouble)e1.getUserDatum(EDGE_KEY)).doubleValue(); |
| 51 | 21 | double d2 = ((MutableDouble)e2.getUserDatum(EDGE_KEY)).doubleValue(); |
| 52 | 21 | return new MutableDouble(d1*d2); |
| 53 | } | |
| 54 | } |
|
this report was generated by version 1.0.5 of jcoverage. |
copyright © 2003, jcoverage ltd. all rights reserved. |