mysqlmultipolygon.java

openmap java写的开源数字地图程序. 用applet实现,可以像google map 那样放大缩小地图.

/* ***********************************************************************
 * This is used by the MysqlGeometryLayer.
 * This program is distributed freely and 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.
 *
 * Copyright 2003 by the Author
 *
 * Author name: Uwe Baier [e-mail]
 * Version 1.0
 * ***********************************************************************
 */
package com.bbn.openmap.layer.mysql;

/**
 * This class represents the encapsulation of a MySQL MultiPolygon
 * Geometry. Coordinate values are stored as values of double
 * precision in arrays as a sequence of Latitude/Longitude pairs. This
 * differs from the database where values are stored as X/Y or
 * Easting/Northing pairs.
 * 
 * <p>
 * Copyright 2003 by the Author <br>
 * <p>
 * 
 * @author Uwe Baier [e-mail] <br>
 * @version 1.0 <br>
 */
public class MysqlMultiPolygon extends MysqlMulti {

    public MysqlMultiPolygon() {
        super();
        this.setType(MysqlGeometry.MULTIPOLYGONTYPE);
    }

    public void addElement(MysqlGeometry l) {
        if (l.getType().equals(MysqlGeometry.POLYGONTTYPE)) {
            super.elements.add((MysqlPolygon) l);
        }
    }

    public MysqlGeometry getElementByIndex(int i) {
        return (MysqlPolygon) super.elements.elementAt(i);
    }

}