    001    //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.4_testing/src/org/deegree/model/spatialschema/Position.java $
    002    /*----------------------------------------------------------------------------
    003     This file is part of deegree, http://deegree.org/
    004     Copyright (C) 2001-2009 by:
    005       Department of Geography, University of Bonn
    006     and
    007       lat/lon GmbH
    008
    009     This library is free software; you can redistribute it and/or modify it under
    010     the terms of the GNU Lesser General Public License as published by the Free
    011     Software Foundation; either version 2.1 of the License, or (at your option)
    012     any later version.
    013     This library is distributed in the hope that it will be useful, but WITHOUT
    014     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
    015     FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
    016     details.
    017     You should have received a copy of the GNU Lesser General Public License
    018     along with this library; if not, write to the Free Software Foundation, Inc.,
    019     59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
    020
    021     Contact information:
    022
    023     lat/lon GmbH
    024     Aennchenstr. 19, 53177 Bonn
    025     Germany
    026     http://lat-lon.de/
    027
    028     Department of Geography, University of Bonn
    029     Prof. Dr. Klaus Greve
    030     Postfach 1147, 53001 Bonn
    031     Germany
    032     http://www.geographie.uni-bonn.de/deegree/
    033
    034     e-mail: info@deegree.org
    035    ----------------------------------------------------------------------------*/
    036    package org.deegree.model.spatialschema;
    037
    038    import javax.vecmath.Point3d;
    039
    040    /**
    041     * A sequence of decimals numbers which when written on a width are a sequence of coordinate positions. The width is
    042     * derived from the CRS or coordinate dimension of the container.
    043     *
    044     * <p>
    045     * -----------------------------------------------------------------------
    046     * </p>
    047     *
    048     * @version 5.6.2001
    049     * @author Andreas Poth
    050     *         <p>
    051     */
    052    public interface Position {
    053        /**
    054         * @return the x-value of the point
    055         */
    056        public double getX();
    057
    058        /**
    059         * @return the y-value of the point
    060         */
    061        public double getY();
    062
    063        /**
    064         * @return the z-value of the point
    065         */
    066        public double getZ();
    067
    068        /**
    069         * @return the coordinate dimension of the position
    070         */
    071        public int getCoordinateDimension();
    072
    073        /**
    074         * NOTE: The returned array always has a length of 3, regardless of the dimension. This is due to a limitation in
    075         * the coordinate transformation package (proj4), which expects coordinates to have 3 dimensions.
    076         *
    077         * @return the x- and y-value of the point as a two dimensional array the first field contains the x- the second
    078         *         field the y-value.
    079         *
    080         */
    081        public double[] getAsArray();
    082
    083        /**
    084         * translates the coordinates of the position.
    085         *
    086         * @param d
    087         *            the first coordinate of the position will be translated by the first field of <tt>d</tt> the second
    088         *            coordinate by the second field of <tt>d</tt> and so on...
    089         */
    090        public void translate( double[] d );
    091
    092        /**
    093         * returns the accuracy the position is defined. The accuracy is measured in values of the CRS the positions
    094         * coordinates are stored
    095         *
    096         * @return the accuracy the position is defined
    097         */
    098        public double getAccuracy();
    099
    100        /**
    101         * @see #getAccuracy()
    102         * @param accuracy
    103         */
    104        public void setAccuracy( double accuracy );
    105
    106        /**
    107         * @return the position as a point3d
    108         */
    109        public Point3d getAsPoint3d();
    110
    111    }