01: /*
02: * This file is part of the GeOxygene project source files.
03: *
04: * GeOxygene aims at providing an open framework which implements OGC/ISO specifications for
05: * the development and deployment of geographic (GIS) applications. It is a open source
06: * contribution of the COGIT laboratory at the Institut Géographique National (the French
07: * National Mapping Agency).
08: *
09: * See: http://oxygene-project.sourceforge.net
10: *
11: * Copyright (C) 2005 Institut Géographique National
12: *
13: * This library is free software; you can redistribute it and/or modify it under the terms
14: * of the GNU Lesser General Public License as published by the Free Software Foundation;
15: * either version 2.1 of the License, or any later version.
16: *
17: * This library is distributed in the hope that it will be useful, but WITHOUT ANY
18: * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
19: * PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
20: *
21: * You should have received a copy of the GNU Lesser General Public License along with
22: * this library (see file LICENSE if present); if not, write to the Free Software
23: * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24: *
25: */
26:
27: package fr.ign.cogit.geoxygene.spatial.topoprim;
28:
29: /**
30: * Frontière d'un brin topologique. Contient 2 référence vers des TP_DirectedNode,
31: * le startNode est orienté négativement, le endNode positivement.
32: * Comme TP_Expression, le TP_EdgeBoundary se présente comme ceci :
33: * Edge.boundary()=+endNode-startNode.
34: *
35: * @author Thierry Badard & Arnaud Braun
36: * @version 1.0
37: *
38: */
39:
40: public class TP_EdgeBoundary extends TP_PrimitiveBoundary {
41:
42: /** Constructeur par défaut. */
43: public TP_EdgeBoundary() {
44: }
45:
46: /** Constructeur à partir d'un noeud initial et d'un noeud final */
47: public TP_EdgeBoundary(TP_DirectedNode theStartNode,
48: TP_DirectedNode theEndNode) {
49: term.add(theEndNode);
50: term.add(theStartNode);
51: endNode = theEndNode;
52: startNode = theStartNode;
53: }
54:
55: /** Noeud initial.*/
56: protected TP_DirectedNode startNode;
57:
58: /** Renvoie le noeud initial.*/
59: public TP_DirectedNode getStartnode() {
60: return this .startNode;
61: }
62:
63: /** Noeud final. */
64: protected TP_DirectedNode endNode;
65:
66: /** Renvoie le noeud final. */
67: public TP_DirectedNode getEndnode() {
68: return this.endNode;
69: }
70:
71: }
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