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/*

 * 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.gvsig.dxf.px.gml;

import java.awt.Graphics2D;

import java.awt.geom.Point2D;

import java.util.Vector;

import org.cresques.cts.ICoordTrans;

import org.cresques.cts.IProjection;

import org.cresques.geo.Projected;

import org.cresques.geo.ViewPortData;

import org.cresques.px.Extent;

import org.gvsig.dxf.px.PxObj;

/**

 * Clase base para geometr?as.

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

 */

abstract public class Geometry extends PxObj implements Projected {

    protected IProjection proj;

    //        protected Extent extent = null;

    Vector data = null;

    /**

     * Constructor de Geometry.

     */

    public Geometry() {

        extent = new Extent();

        data = new Vector();

    }

    /**

     * Permite a?adir un punto a la Geometry.

     * @param pt

     */

    public void add(Point2D pt) {

        extent.add(pt);

        data.add(pt);

    }

    /**

     * Devuelve un punto de la Geometry dado por su ?ndice.

     * @param i, ?ndice.

     * @return Point2D.

     */

    public Point2D get(int i) {

        return (Point2D) data.get(i);

    }

    /**

     * Devuelve el n?mero de puntos que componen la Geometry.

     * @return int

     */

    public int pointNr() {

        return data.size();

    }

    /**

     * Devuelve el conjunto de objetos que conforman la Geometry en forma de Vector.

     * @return Vector de objetos.

     */

    public Vector getData() {

        return data;

    }

    /**

     * Devuelve el extent de la Geometry.

     * @return Extent, el rect?ngulo que contiene la Geometry.

     */

    public Extent getExtent() {

        return extent;

    }

    /**

     * Devuelve la proyecci?n cartogr?fica en la que se encuentra la Geometry.

     * @return IProjection, la proyecci?n cartogr?fica.

     */

    abstract public IProjection getProjection();

    /**

     * Permite reproyectar la Geometry en funci?n de unas coordenadas de transformaci?n.

     * @param rp, Coordenadas de transformaci?n.

     */

    abstract public void reProject(ICoordTrans rp);

    /**

     * Permite dibujar la Geometry.

     * @param g, Graphics2D.

     * @param vp, ViewPortData.

     */

    public void draw(Graphics2D g, ViewPortData vp) {

    }

}