AnticipationDensity.java
- package org.opentrafficsim.road.gtu.lane.perception.categories;
- import java.util.function.Supplier;
- import org.djunits.value.vdouble.scalar.Length;
- import org.djunits.value.vdouble.scalar.LinearDensity;
- import org.opentrafficsim.core.gtu.GTU;
- import org.opentrafficsim.road.gtu.lane.perception.PerceptionCollectable.Intermediate;
- import org.opentrafficsim.road.gtu.lane.perception.PerceptionCollectable.PerceptionAccumulator;
- import org.opentrafficsim.road.gtu.lane.perception.PerceptionCollectable.PerceptionCollector;
- import org.opentrafficsim.road.gtu.lane.perception.PerceptionCollectable.PerceptionFinalizer;
- import org.opentrafficsim.road.gtu.lane.perception.categories.AnticipationDensity.CountAndDistance;
- /**
- * Collector to determine density based on GTUs.
- * <p>
- * Copyright (c) 2013-2022 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved. <br>
- * BSD-style license. See <a href="http://opentrafficsim.org/node/13">OpenTrafficSim License</a>.
- * <p>
- * @version $Revision$, $LastChangedDate$, by $Author$, initial version 13 mrt. 2018 <br>
- * @author <a href="http://www.tbm.tudelft.nl/averbraeck">Alexander Verbraeck</a>
- * @author <a href="http://www.tudelft.nl/pknoppers">Peter Knoppers</a>
- * @author <a href="http://www.transport.citg.tudelft.nl">Wouter Schakel</a>
- */
- public class AnticipationDensity implements PerceptionCollector<LinearDensity, GTU, CountAndDistance>
- {
- /** {@inheritDoc} */
- @Override
- public Supplier<CountAndDistance> getIdentity()
- {
- return new Supplier<CountAndDistance>()
- {
- /** {@inheritDoc} */
- @Override
- public CountAndDistance get()
- {
- return new CountAndDistance();
- }
- };
- }
- /** {@inheritDoc} */
- @Override
- public PerceptionAccumulator<GTU, CountAndDistance> getAccumulator()
- {
- return new PerceptionAccumulator<GTU, CountAndDistance>()
- {
- /** {@inheritDoc} */
- @Override
- public Intermediate<CountAndDistance> accumulate(final Intermediate<CountAndDistance> intermediate,
- final GTU object, final Length distance)
- {
- intermediate.getObject().increaseCount();
- intermediate.getObject().setDistance(distance);
- return intermediate;
- }
- };
- }
- /** {@inheritDoc} */
- @Override
- public PerceptionFinalizer<LinearDensity, CountAndDistance> getFinalizer()
- {
- return new PerceptionFinalizer<LinearDensity, CountAndDistance>()
- {
- /** {@inheritDoc} */
- @Override
- public LinearDensity collect(final CountAndDistance intermediate)
- {
- return LinearDensity.instantiateSI(intermediate.getDistance().si / intermediate.getCount());
- }
- };
- }
- /**
- * Intermediate data to determine density.
- * <p>
- * Copyright (c) 2013-2022 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved.
- * <br>
- * BSD-style license. See <a href="http://opentrafficsim.org/node/13">OpenTrafficSim License</a>.
- * <p>
- * @version $Revision$, $LastChangedDate$, by $Author$, initial version 13 mrt. 2018 <br>
- * @author <a href="http://www.tbm.tudelft.nl/averbraeck">Alexander Verbraeck</a>
- * @author <a href="http://www.tudelft.nl/pknoppers">Peter Knoppers</a>
- * @author <a href="http://www.transport.citg.tudelft.nl">Wouter Schakel</a>
- */
- public static class CountAndDistance
- {
- /** Count. */
- private int count;
- /** Distance. */
- private Length distance;
- /**
- * @return count.
- */
- public int getCount()
- {
- return this.count;
- }
- /**
- * Increases the GTU count by 1.
- */
- public void increaseCount()
- {
- this.count++;
- }
- /**
- * @return distance.
- */
- public Length getDistance()
- {
- return this.distance;
- }
- /**
- * @param distance Length; set distance.
- */
- public void setDistance(final Length distance)
- {
- this.distance = distance;
- }
- }
- }