Exploration profil Graphhopper

Exploration profil Graphhopper

Exploration de la requête pour la création d'une route en fonction du profil.

"https://graphhopper.com/api/1/route?point=51.131,12.414&point=48.224,3.867&vehicle=car&locale=de&calc_points=false&key=api_key"

route?point=51.131,12.414&point=48.224,3.867 : Recherche de la route entre deux points. vehicle=car : véhicule utiliser (différents profils d'utilisateur) -> "car" "bike" "foot" "hike" "mtb"(VTT) "racingbike" "scooter" "truck" "small_truck". locale=de : Dans notre cas cela sera fr. calc_points=false : Calcul de points intermédiaires.

D'autres options peuvent être ajoutées (voir la documentation API) : https://docs.graphhopper.com/#operation/getRoute

L'implementation d'un profil sur GraphHopper se fait à travers une classe (cf ci-dessous):

/*
 *  Licensed to GraphHopper GmbH under one or more contributor
 *  license agreements. See the NOTICE file distributed with this work for
 *  additional information regarding copyright ownership.
 *
 *  GraphHopper GmbH licenses this file to you under the Apache License,
 *  Version 2.0 (the "License"); you may not use this file except in
 *  compliance with the License. You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package com.graphhopper.routing.util;

import com.graphhopper.reader.ReaderRelation;
import com.graphhopper.reader.ReaderWay;
import com.graphhopper.util.PMap;

import java.util.TreeMap;

import static com.graphhopper.routing.util.PriorityCode.*;

/**
 * Specifies the settings for mountain biking
 * 

 *
 * @author ratrun
 * @author Peter Karich
 */
public class MountainBikeFlagEncoder extends BikeCommonFlagEncoder {
    public MountainBikeFlagEncoder() {
        this(4, 2, 0);
    }

    public MountainBikeFlagEncoder(PMap properties) {
        this(
                (int) properties.getLong("speed_bits", 4),
                properties.getDouble("speed_factor", 2),
                properties.getBool("turn_costs", false) ? 1 : 0
        );
        this.setBlockFords(properties.getBool("block_fords", true));
    }

    public MountainBikeFlagEncoder(String propertiesStr) {
        this(new PMap(propertiesStr));
    }

    public MountainBikeFlagEncoder(int speedBits, double speedFactor, int maxTurnCosts) {
        super(speedBits, speedFactor, maxTurnCosts);
        setTrackTypeSpeed("grade1", 18); // paved
        setTrackTypeSpeed("grade2", 16); // now unpaved ...
        setTrackTypeSpeed("grade3", 12);
        setTrackTypeSpeed("grade4", 8);
        setTrackTypeSpeed("grade5", 6); // like sand/grass     

        setSurfaceSpeed("paved", 18);
        setSurfaceSpeed("asphalt", 18);
        setSurfaceSpeed("cobblestone", 10);
        setSurfaceSpeed("cobblestone:flattened", 10);
        setSurfaceSpeed("sett", 10);
        setSurfaceSpeed("concrete", 14);
        setSurfaceSpeed("concrete:lanes", 16);
        setSurfaceSpeed("concrete:plates", 16);
        setSurfaceSpeed("paving_stones", 16);
        setSurfaceSpeed("paving_stones:30", 16);
        setSurfaceSpeed("unpaved", 14);
        setSurfaceSpeed("compacted", 14);
        setSurfaceSpeed("dirt", 14);
        setSurfaceSpeed("earth", 14);
        setSurfaceSpeed("fine_gravel", 18);
        setSurfaceSpeed("grass", 14);
        setSurfaceSpeed("grass_paver", 14);
        setSurfaceSpeed("gravel", 16);
        setSurfaceSpeed("ground", 16);
        setSurfaceSpeed("ice", PUSHING_SECTION_SPEED / 2);
        setSurfaceSpeed("metal", 10);
        setSurfaceSpeed("mud", 12);
        setSurfaceSpeed("pebblestone", 12);
        setSurfaceSpeed("salt", 12);
        setSurfaceSpeed("sand", 10);
        setSurfaceSpeed("wood", 10);

        setHighwaySpeed("living_street", 6);
        setHighwaySpeed("steps", PUSHING_SECTION_SPEED);

        setHighwaySpeed("cycleway", 18);
        setHighwaySpeed("path", 18);
        setHighwaySpeed("footway", 6);
        setHighwaySpeed("pedestrian", 6);
        setHighwaySpeed("road", 12);
        setHighwaySpeed("track", 18);
        setHighwaySpeed("service", 14);
        setHighwaySpeed("unclassified", 16);
        setHighwaySpeed("residential", 16);

        setHighwaySpeed("trunk", 18);
        setHighwaySpeed("trunk_link", 18);
        setHighwaySpeed("primary", 18);
        setHighwaySpeed("primary_link", 18);
        setHighwaySpeed("secondary", 18);
        setHighwaySpeed("secondary_link", 18);
        setHighwaySpeed("tertiary", 18);
        setHighwaySpeed("tertiary_link", 18);

        addPushingSection("footway");
        addPushingSection("platform");
        addPushingSection("pedestrian");
        addPushingSection("steps");

        setCyclingNetworkPreference("icn", PREFER.getValue());
        setCyclingNetworkPreference("ncn", PREFER.getValue());
        setCyclingNetworkPreference("rcn", PREFER.getValue());
        setCyclingNetworkPreference("lcn", PREFER.getValue());
        setCyclingNetworkPreference("mtb", BEST.getValue());

        avoidHighwayTags.add("primary");
        avoidHighwayTags.add("primary_link");
        avoidHighwayTags.add("secondary");
        avoidHighwayTags.add("secondary_link");

        preferHighwayTags.add("road");
        preferHighwayTags.add("track");
        preferHighwayTags.add("path");
        preferHighwayTags.add("service");
        preferHighwayTags.add("tertiary");
        preferHighwayTags.add("tertiary_link");
        preferHighwayTags.add("residential");
        preferHighwayTags.add("unclassified");

        potentialBarriers.add("kissing_gate");
        setSpecificClassBicycle("mtb");

        init();
    }

    @Override
    public int getVersion() {
        return 2;
    }

    @Override
    void collect(ReaderWay way, double wayTypeSpeed, TreeMap weightToPrioMap) {
        super.collect(way, wayTypeSpeed, weightToPrioMap);

        String highway = way.getTag("highway");
        if ("track".equals(highway)) {
            String trackType = way.getTag("tracktype");
            if ("grade1".equals(trackType))
                weightToPrioMap.put(50d, UNCHANGED.getValue());
            else if (trackType == null)
                weightToPrioMap.put(90d, PREFER.getValue());
            else if (trackType.startsWith("grade"))
                weightToPrioMap.put(100d, VERY_NICE.getValue());
        }
    }

    @Override
    public long handleRelationTags(long oldRelationFlags, ReaderRelation relation) {
        super.handleRelationTags(oldRelationFlags, relation);
        int code = 0;
        if (relation.hasTag("route", "mtb"))
            code = PREFER.getValue();

        int oldCode = (int) relationCodeEncoder.getValue(oldRelationFlags);
        if (oldCode < code)
            relationCodeEncoder.setValue(oldRelationFlags, code);
        return oldRelationFlags;
    }

    @Override
    boolean isSacScaleAllowed(String sacScale) {
        // other scales are too dangerous even for MTB, see http://wiki.openstreetmap.org/wiki/Key:sac_scale
        return "hiking".equals(sacScale) || "mountain_hiking".equals(sacScale)
                || "demanding_mountain_hiking".equals(sacScale) || "alpine_hiking".equals(sacScale);
    }

    @Override
    public String toString() {
        return "mtb";
    }
}