com.graphhopper.storage.GHNodeAccess Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of graphhopper-core Show documentation

GraphHopper is a fast and memory efficient Java road routing engine working seamlessly with OpenStreetMap data.

There is a newer version: 10.0

/*
 *  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.storage;

/**
 * @author Peter Karich
 */
class GHNodeAccess implements NodeAccess {
    private final BaseGraphNodesAndEdges store;

    public GHNodeAccess(BaseGraphNodesAndEdges store) {
        this.store = store;
    }

    @Override
    public void ensureNode(int nodeId) {
        store.ensureNodeCapacity(nodeId);
    }

    @Override
    public final void setNode(int nodeId, double lat, double lon, double ele) {
        store.ensureNodeCapacity(nodeId);
        store.setLat(store.toNodePointer(nodeId), lat);
        store.setLon(store.toNodePointer(nodeId), lon);

        if (store.withElevation()) {
            // meter precision is sufficient for now
            store.setEle(store.toNodePointer(nodeId), ele);
            store.bounds.update(lat, lon, ele);
        } else {
            store.bounds.update(lat, lon);
        }
    }

    @Override
    public final double getLat(int nodeId) {
        return store.getLat(store.toNodePointer(nodeId));
    }

    @Override
    public final double getLon(int nodeId) {
        return store.getLon(store.toNodePointer(nodeId));
    }

    @Override
    public final double getEle(int nodeId) {
        if (!store.withElevation())
            throw new IllegalStateException("elevation is disabled");
        return store.getEle(store.toNodePointer(nodeId));
    }

    @Override
    public final void setTurnCostIndex(int index, int turnCostIndex) {
        if (store.withTurnCosts()) {
            // todo: remove ensure?
            store.ensureNodeCapacity(index);
            store.setTurnCostRef(store.toNodePointer(index), turnCostIndex);
        } else {
            throw new AssertionError("This graph does not support turn costs");
        }
    }

    @Override
    public final int getTurnCostIndex(int index) {
        if (store.withTurnCosts())
            return store.getTurnCostRef(store.toNodePointer(index));
        else
            throw new AssertionError("This graph does not support turn costs");
    }

    @Override
    public final boolean is3D() {
        return store.withElevation();
    }

    @Override
    public int getDimension() {
        return store.withElevation() ? 3 : 2;
    }
}