Application: gvSIG desktop

/*

 * Cresques Mapping Suite. Graphic Library for constructing mapping applications.

 * 

 * Copyright (C) 2004-5. 

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

 *

 * For more information, contact:

 * 

 * cresques@gmail.com

 */

package org.cresques.geo;

import java.awt.Graphics2D;

import java.awt.geom.AffineTransform;

import java.awt.geom.Point2D;

import org.cresques.cts.IDatum;

import org.cresques.cts.IProjection;

import org.cresques.px.Extent;

/**

 * Proyeccion de Gauss (Mapa de Portugal)

 * @author "Luis W. Sevilla" <sevilla_lui@gva.es>* @author administrador

 */

public class Gauss  extends Projection {

        static String name = "Gauss";

        static String abrev = "Gau";

        public Gauss(Ellipsoid eli) {

                super(eli);

                grid = new Graticule(this);

        }

        public String getAbrev() { return abrev;}

        public static Gauss getProjection(Ellipsoid eli) {

                return new Gauss(eli);

        }

        /**

         * 

         */

        public static IProjection getProjectionByName(IDatum eli, String name) {

                if (name.indexOf("Ga") < 0)

                        return null;

                return getProjection((Ellipsoid) eli);

        }

        /**

         * 

         */        

        public Point2D createPoint(double x, double y){

                return new Point2D.Double(x, y);

        }

        /**

         * 

         * @param uPt

         * @return

         */        

        public Point2D toGeo(Point2D gaPt) {

                GeoPoint gPt = new GeoPoint();

                return toGeo(gaPt, gPt);

        }

        /**

         * 

         * @param uPt

         * @param gPt

         * @return

         */

        public GeoPoint toGeo(Point2D gaPt, GeoPoint gPt) {

                return gPt;

        }

        /**

         * 

         * @param gPt

         * @param uPt

         * @return

         */        

        public Point2D fromGeo(Point2D gPt, Point2D gaPt) {

                return gaPt;

        }

        private void generateGrid(Graphics2D g, Extent extent, AffineTransform mat) {

                grid = new Graticule(this);

        }

        public void drawGrid(Graphics2D g, ViewPortData vp) {

                generateGrid(g, vp.getExtent(), vp.getMat());

                grid.setColor(gridColor);

                grid.draw(g, vp);

        }

        /* (non-Javadoc)

         * @see org.cresques.cts.IProjection#getScale(double, double, double, double)

         */

        public double getScale(double minX, double maxX, double width, double dpi) {

                // TODO Auto-generated method stub

                return -1D;

        }

}