1 package org.opentrafficsim.road.network.lane;
2
3 import java.io.Serializable;
4 import java.util.ArrayList;
5 import java.util.List;
6
7 import org.opentrafficsim.core.geometry.OTSLine3D;
8 import org.opentrafficsim.core.network.Node;
9 import org.opentrafficsim.core.network.OTSLink;
10 import org.opentrafficsim.road.network.lane.changing.LaneKeepingPolicy;
11
12 /**
13 * A CrossSectionLink is a link with lanes where GTUs can possibly switch between lanes.
14 * <p>
15 * Copyright (c) 2013-2015 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved. <br>
16 * BSD-style license. See <a href="http://opentrafficsim.org/docs/license.html">OpenTrafficSim License</a>.
17 * <p>
18 * $LastChangedDate: 2015-09-16 19:20:07 +0200 (Wed, 16 Sep 2015) $, @version $Revision: 1405 $, by $Author: averbraeck $,
19 * initial version Aug 19, 2014 <br>
20 * @author <a href="http://www.tbm.tudelft.nl/averbraeck">Alexander Verbraeck</a>
21 * @author <a href="http://www.tudelft.nl/pknoppers">Peter Knoppers</a>
22 * @author <a href="http://www.citg.tudelft.nl">Guus Tamminga</a>
23 */
24 public class CrossSectionLink extends OTSLink implements Serializable
25 {
26 /** */
27 private static final long serialVersionUID = 20141015L;
28
29 /** list of cross-section elements. */
30 private final List<CrossSectionElement> crossSectionElementList = new ArrayList<>();
31
32 /** the policy to generally keep left, keep right, or keep lane. */
33 private final LaneKeepingPolicy laneKeepingPolicy;
34
35 /**
36 * Construction of a link.
37 * @param id the link id.
38 * @param startNode start node (directional).
39 * @param endNode end node (directional).
40 * @param designLine the OTSLine3D design line of the Link
41 * @param laneKeepingPolicy the policy to generally keep left, keep right, or keep lane
42 */
43 public CrossSectionLink(final String id, final Node startNode, final Node endNode, final OTSLine3D designLine,
44 final LaneKeepingPolicy laneKeepingPolicy)
45 {
46 super(id, startNode, endNode, designLine);
47 this.laneKeepingPolicy = laneKeepingPolicy;
48 }
49
50 /**
51 * Add a cross section element at the end of the list. <br>
52 * <b>Note:</b> LEFT is seen as a positive lateral direction, RIGHT as a negative lateral direction.
53 * @param cse the cross section element to add.
54 */
55 protected final void addCrossSectionElement(final CrossSectionElement cse)
56 {
57 this.crossSectionElementList.add(cse);
58 }
59
60 /**
61 * Add a cross section element at specified index in the list.<br>
62 * <b>Note:</b> LEFT is seen as a positive lateral direction, RIGHT as a negative lateral direction.
63 * @param index the location to insert the element.
64 * @param cse the cross section element to add.
65 */
66 protected final void addCrossSectionElement(final CrossSectionElement cse, final int index)
67 {
68 this.crossSectionElementList.add(index, cse);
69 }
70
71 /**
72 * @return crossSectionElementList.
73 */
74 public final List<CrossSectionElement> getCrossSectionElementList()
75 {
76 return this.crossSectionElementList;
77 }
78
79 /**
80 * @return laneKeepingPolicy
81 */
82 public final LaneKeepingPolicy getLaneKeepingPolicy()
83 {
84 return this.laneKeepingPolicy;
85 }
86 }