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1   package org.opentrafficsim.road.network.lane.object;
2   
3   import javax.media.j3d.Bounds;
4   
5   import org.djunits.value.vdouble.scalar.Length;
6   import org.opentrafficsim.core.geometry.OTSGeometryException;
7   import org.opentrafficsim.core.geometry.OTSLine3D;
8   import org.opentrafficsim.core.geometry.OTSPoint3D;
9   import org.opentrafficsim.core.object.ObjectInterface;
10  import org.opentrafficsim.road.network.lane.Lane;
11  
12  import nl.tudelft.simulation.language.Throw;
13  import nl.tudelft.simulation.language.d3.DirectedPoint;
14  
15  /**
16   * Objects that can be encountered on a Lane like conflict areas, GTUs, traffic lights, stop lines, etc.
17   * <p>
18   * Copyright (c) 2013-2016 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved. <br>
19   * BSD-style license. See <a href="http://opentrafficsim.org/docs/license.html">OpenTrafficSim License</a>.
20   * </p>
21   * $LastChangedDate: 2015-07-24 02:58:59 +0200 (Fri, 24 Jul 2015) $, @version $Revision: 1147 $, by $Author: averbraeck $,
22   * initial version Sep 9, 2016 <br>
23   * @author <a href="http://www.tbm.tudelft.nl/averbraeck">Alexander Verbraeck</a>
24   * @author <a href="http://www.tudelft.nl/pknoppers">Peter Knoppers</a>
25   * @author <a href="http://www.transport.citg.tudelft.nl">Wouter Schakel</a>
26   */
27  public interface LaneBasedObject extends ObjectInterface
28  {
29      /** @return The lane for which this is a sensor. */
30      Lane getLane();
31  
32      /** @return the position (between 0.0 and the length of the Lane) of the sensor on the design line of the lane. */
33      Length getLongitudinalPosition();
34  
35      /**
36       * Return the location without throwing a RemoteException.
37       * @return DirectedPoint; the location
38       */
39      @Override
40      DirectedPoint getLocation();
41  
42      /**
43       * Return the bounds without throwing a RemoteException.
44       * @return Bounds; the (usually rectangular) bounds of the object
45       */
46      @Override
47      Bounds getBounds();
48  
49      /**
50       * Make a geometry perpendicular to the center line of the lane at the given position.
51       * @param lane Lane; the lane where the sensor resides
52       * @param position Length; The length of the object in the longitudinal direction, on the center line of the lane
53       * @return a geometry perpendicular to the center line that describes the sensor
54       */
55      static OTSLine3D makeGeometry(final Lane lane, final Length position)
56      {
57          Throw.whenNull(lane, "lane is null");
58          Throw.whenNull(position, "position is null");
59          DirectedPoint sp = lane.getCenterLine().getLocationExtended(position);
60          double w45 = 0.45 * lane.getWidth(position).si;
61          double a = sp.getRotZ() + Math.PI / 2.0;
62          OTSPoint3D p1 = new OTSPoint3D(sp.x + w45 * Math.cos(a), sp.y - w45 * Math.sin(a), sp.z + 0.0001);
63          OTSPoint3D p2 = new OTSPoint3D(sp.x - w45 * Math.cos(a), sp.y + w45 * Math.sin(a), sp.z + 0.0001);
64          try
65          {
66              return new OTSLine3D(p1, p2);
67          }
68          catch (OTSGeometryException exception)
69          {
70              throw new RuntimeException(exception);
71          }
72      }
73  
74  }