view gnv-artifacts/src/main/java/de/intevation/gnv/math/XYDepth.java @ 1145:dfe1ac687c7f tip

added tags
author Thomas Arendsen Hein <thomas@intevation.de>
date Fri, 28 Sep 2012 12:16:15 +0200
parents f953c9a559d8
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/*
 * Copyright (c) 2010 by Intevation GmbH
 *
 * This program is free software under the LGPL (>=v2.1)
 * Read the file LGPL.txt coming with the software for details
 * or visit http://www.gnu.org/licenses/ if it does not exist.
 */

package de.intevation.gnv.math;

import com.vividsolutions.jts.geom.Coordinate;

/**
 * Interface to encapsulate the query of the depth at a given point.
 * @author <a href="mailto:sascha.teichmann@intevation.de">Sascha L. Teichmann</a>
 */
public interface XYDepth
{
    /**
     * Returns the depth at a given coordinate. Negative
     * values are below the water surface.
     * @param coordinate The coordinate where to take the depth.
     * @return The depth at the queried coordinate. NaN is no
     * depth is available at the given point.
     */
    double depth(Coordinate coordinate);
}
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