PreferencePriorityWeighting.java
/* This file is part of Openrouteservice.
*
* Openrouteservice is free software; you can redistribute it and/or modify it under the terms of the
* GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1
* of the License, or (at your option) any later version.
* This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public License along with this library;
* if not, see <https://www.gnu.org/licenses/>.
*/
package org.heigit.ors.routing.graphhopper.extensions.weighting;
import com.graphhopper.routing.ev.DecimalEncodedValue;
import com.graphhopper.routing.util.FlagEncoder;
import com.graphhopper.routing.weighting.FastestWeighting;
import com.graphhopper.routing.weighting.TurnCostProvider;
import com.graphhopper.util.EdgeIteratorState;
import com.graphhopper.util.PMap;
import org.heigit.ors.routing.graphhopper.extensions.flagencoders.FlagEncoderKeys;
import org.heigit.ors.routing.graphhopper.extensions.util.PriorityCode;
import static com.graphhopper.routing.util.EncodingManager.getKey;
public class PreferencePriorityWeighting extends FastestWeighting {
private static final double THRESHOLD_VERY_BAD = PriorityCode.AVOID_IF_POSSIBLE.getValue() / (double) PriorityCode.BEST.getValue();
private static final double THRESHOLD_REACH_DEST = PriorityCode.REACH_DEST.getValue() / (double) PriorityCode.BEST.getValue();
private static final double THRESHOLD_PREFER = PriorityCode.PREFER.getValue() / (double) PriorityCode.BEST.getValue();
private static final double THRESHOLD_VERY_NICE = PriorityCode.VERY_NICE.getValue() / (double) PriorityCode.BEST.getValue();
private final DecimalEncodedValue priorityEncoder;
public PreferencePriorityWeighting(FlagEncoder encoder, PMap map) {
super(encoder, map);
priorityEncoder = encoder.getDecimalEncodedValue(getKey(encoder, FlagEncoderKeys.PRIORITY_KEY));
}
public PreferencePriorityWeighting(FlagEncoder encoder, PMap map, TurnCostProvider tcp) {
super(encoder, map, tcp);
priorityEncoder = encoder.getDecimalEncodedValue(getKey(encoder, FlagEncoderKeys.PRIORITY_KEY));
}
@Override
public double calcEdgeWeight(EdgeIteratorState edgeState, boolean reverse) {
double weight = super.calcEdgeWeight(edgeState, reverse);
if (Double.isInfinite(weight))
weight = 0.0;
double priority = priorityEncoder.getDecimal(reverse, edgeState.getFlags());
if (priority <= THRESHOLD_REACH_DEST)
priority /= 1.5;
else if (priority <= THRESHOLD_VERY_BAD)
priority /= 1.25;
else if (priority == THRESHOLD_PREFER)
priority *= 1.5;
else if (priority >= THRESHOLD_VERY_NICE)
priority *= 2.2;
return weight / (0.5 + priority);
}
@Override
public String getName() {
return "recommended";
}
@Override
public boolean equals(Object obj) {
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
final PreferencePriorityWeighting other = (PreferencePriorityWeighting) obj;
return toString().equals(other.toString());
}
@Override
public int hashCode() {
return ("PreferencePriorityWeighting" + this).hashCode();
}
}