gm_aggregate.java

用于GIS(全球地理系统)的分析和处理的代码。

/*
 * This file is part of the GeOxygene project source files. 
 * 
 * GeOxygene aims at providing an open framework which implements OGC/ISO specifications for 
 * the development and deployment of geographic (GIS) applications. It is a open source 
 * contribution of the COGIT laboratory at the Institut G閛graphique National (the French 
 * National Mapping Agency).
 * 
 * See: http://oxygene-project.sourceforge.net 
 *  
 * Copyright (C) 2005 Institut G閛graphique National
 *
 * This library is free software; you can redistribute it and/or modify it under the terms
 * of the GNU Lesser General Public License as published by the Free Software Foundation; 
 * either version 2.1 of the License, or any later version.
 *
 * This library 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License along with 
 * this library (see file LICENSE if present); if not, write to the Free Software 
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *  
 */

package fr.ign.cogit.geoxygene.spatial.geomaggr;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import fr.ign.cogit.geoxygene.spatial.coordgeom.DirectPositionList;
import fr.ign.cogit.geoxygene.spatial.geomroot.GM_Object;


/**
  * Agr間ation quelconque d'objets g閛m閠riques. Il n'y a aucune structure interne.
  * On aurait pu faire un set d'elements au lieu d'une liste ? 
  *
  * @author Thierry Badard & Arnaud Braun
  * @version 1.0
  * 
  */


public class GM_Aggregate extends GM_Object {
    
    /** Liste des 閘閙ents constituant self. */
    protected List element;
    
    /** It閞ateur sur laliste des 閘閙ents. */
    protected Iterator iElement;
    
    /** Renvoie l'attribut element = liste de GM_Object. */
    public List getList () {return this.element;}
    
    /** Affecte une liste de GM_Object. */
    public void setList (List L) {element = L; }    
    
    /** Renvoie l'閘閙ent de rang i */
    public GM_Object get (int i) {return (GM_Object)this.element.get(i);}
    
    /** Affecte un 閘閙ent au i-鑝e rang de la liste */
    public void set (int i, GM_Object value) {this.element.set(i, value);}
    
    /** Ajoute un 閘閙ent en fin de liste */
    public void add (GM_Object value) {this.element.add(value);}
    
    /** Ajoute une liste d'閘閙ents en fin de liste */
    public void addAll (List theList) {this.element.addAll(theList);}
    
    /** Ajoute un 閘閙ent au i-鑝e rang de la liste */
    public void add (int i, GM_Object value) {this.element.add(i, value);}
    
    /** Efface de la liste le (ou les) 閘閙ents pass