001    /*
002     *    GeoAPI - Java interfaces for OGC/ISO standards
003     *    http://www.geoapi.org
004     *
005     *    Copyright (C) 2004-2012 Open Geospatial Consortium, Inc.
006     *    All Rights Reserved. http://www.opengeospatial.org/ogc/legal
007     *
008     *    Permission to use, copy, and modify this software and its documentation, with
009     *    or without modification, for any purpose and without fee or royalty is hereby
010     *    granted, provided that you include the following on ALL copies of the software
011     *    and documentation or portions thereof, including modifications, that you make:
012     *
013     *    1. The full text of this NOTICE in a location viewable to users of the
014     *       redistributed or derivative work.
015     *    2. Notice of any changes or modifications to the OGC files, including the
016     *       date changes were made.
017     *
018     *    THIS SOFTWARE AND DOCUMENTATION IS PROVIDED "AS IS," AND COPYRIGHT HOLDERS MAKE
019     *    NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
020     *    TO, WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE OR THAT
021     *    THE USE OF THE SOFTWARE OR DOCUMENTATION WILL NOT INFRINGE ANY THIRD PARTY
022     *    PATENTS, COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS.
023     *
024     *    COPYRIGHT HOLDERS WILL NOT BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL OR
025     *    CONSEQUENTIAL DAMAGES ARISING OUT OF ANY USE OF THE SOFTWARE OR DOCUMENTATION.
026     *
027     *    The name and trademarks of copyright holders may NOT be used in advertising or
028     *    publicity pertaining to the software without specific, written prior permission.
029     *    Title to copyright in this software and any associated documentation will at all
030     *    times remain with copyright holders.
031     */
032    package org.opengis.referencing.operation;
033    
034    
035    /**
036     * A {@linkplain org.opengis.referencing.operation.Conversion conversion} transforming
037     * (<var>longitude</var>,<var>latitude</var>) coordinates to cartesian coordinates
038     * (<var>x</var>,<var>y</var>). Although some map projections can be represented as a
039     * geometric process, in general a map projection is a set of formulae that converts geodetic
040     * latitude and longitude to plane (map) coordinates. Height plays no role in this process,
041     * which is entirely two-dimensional. The same map projection can be applied to many
042     * {@linkplain org.opengis.referencing.crs.GeographicCRS geographic CRSs}, resulting in many
043     * {@linkplain org.opengis.referencing.crs.ProjectedCRS projected CRSs} each of which is related
044     * to the same {@linkplain org.opengis.referencing.datum.GeodeticDatum geodetic datum} as the
045     * geographic CRS on which it was based.
046     * <P>
047     * An unofficial list of projections and their parameters can
048     * be found <A HREF="http://www.remotesensing.org/geotiff/proj_list/">there</A>.
049     * Most projections expect the following parameters:
050     *  <code>"semi_major"</code> (mandatory),
051     *  <code>"semi_minor"</code> (mandatory),
052     *  <code>"central_meridian"</code> (default to 0),
053     *  <code>"latitude_of_origin"</code> (default to 0),
054     *  <code>"scale_factor"</code> (default to 1),
055     *  <code>"false_easting"</code> (default to 0) and
056     *  <code>"false_northing"</code> (default to 0).
057     *
058     * @departure extension
059     *   This interface is not part of the ISO specification. It has been added in GeoAPI at user
060     *   request, in order to provide a way to know the kind of map projection.
061     *
062     * @author  Martin Desruisseaux (IRD)
063     * @version 3.0
064     * @since   1.0
065     *
066     * @see org.opengis.referencing.crs.ProjectedCRS
067     * @see <A HREF="http://mathworld.wolfram.com/MapProjection.html">Map projections on MathWorld</A>
068     */
069    public interface Projection extends Conversion {
070    }