/*
 * (c) Copyright 2010 Talis Systems Ltd.
 * All rights reserved.
 * [See end of file]
 */

package geo;

import java.io.StringReader ;

import javax.xml.parsers.DocumentBuilder ;
import javax.xml.parsers.DocumentBuilderFactory ;

import org.w3c.dom.Document ;
import org.w3c.dom.Node ;
import org.w3c.dom.NodeList ;
import org.xml.sax.InputSource ;

public class Geo
{
    /*
     * http://www.w3.org/Mobile/posdep/GMLIntroduction.html
     * http://en.wikipedia.org/wiki/Geography_Markup_Language
     * http://en.wikipedia.org/wiki/Sinusoidal_projection
     */
    public static void main(String ...args) throws Exception
    {
        parse("<x><y>1</y><y>2</y></x>") ;
        System.out.println("DONE") ;
    }
    
    public static void parse(String string) throws Exception
    {
        DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
        DocumentBuilder db = dbf.newDocumentBuilder();
        InputSource i = new InputSource(new StringReader(string)) ;
        Document doc = db.parse(i) ;

        doc.getDocumentElement() ;
        NodeList nodeList = doc.getDocumentElement().getChildNodes() ;
        for (int s = 0; s < nodeList.getLength(); s++)
        {
            Node node = nodeList.item(s);
            System.out.println(node.getTextContent()) ;
        }
    }
    
    class Point { float x ; float y ; }
    
    // Euclidean distance ...
    double distance(Point p1, Point p2)
    {
        return Math.sqrt(Math.pow(p1.x-p2.x, 2)+ Math.pow(p1.y-p2.y, 2)) ;
    }
}

/*
 * (c) Copyright 2010 Talis Systems Ltd.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */