| gvSIG desktop 1

package com.iver.cit.gvsig.fmap.core;

import java.awt.geom.PathIterator;

import java.util.ArrayList;

import com.iver.cit.gvsig.fmap.core.v02.FConverter;

import com.vividsolutions.jts.geom.Coordinate;

import com.vividsolutions.jts.geom.CoordinateArrays;

import com.vividsolutions.jts.geom.GeometryFactory;

import com.vividsolutions.jts.geom.LineString;

//import com.iver.andami.PluginServices;

/* gvSIG. Sistema de Informaci�n Geogr�fica de la Generalitat Valenciana

 *

 * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.

 *

 * 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:

 *

 *  Generalitat Valenciana

 *   Conselleria d'Infraestructures i Transport

 *   Av. Blasco Ib��ez, 50

 *   46010 VALENCIA

 *   SPAIN

 *

 *      +34 963862235

 *   gvsig@gva.es

 *      www.gvsig.gva.es

 *

 *    or

 *

 *   IVER T.I. S.A

 *   Salamanca 50

 *   46005 Valencia

 *   Spain

 *

 *   +34 963163400

 *   dac@iver.es

 */

/* CVS MESSAGES:

 *

 * $Id: FPolyline2DM.java,v 1.1 2007/10/19 10:03:45 jorpiell Exp $

 * $Log: FPolyline2DM.java,v $

 * Revision 1.1  2007/10/19 10:03:45  jorpiell

 * First commit

 *

 *

 */

/**

 * This object represents a polyline with the M coordinate.

 * @author Jorge Piera LLodr� (jorge.piera@iver.es)

 */

public class FPolyline2DM extends FPolyline2D implements FShapeM{

        private static final long serialVersionUID = -617233536274899782L;

        private static final String NAME = "MULTILINESTRINGM";

        double[] pM = null;

        public FPolyline2DM(GeneralPathX gpx, double[] pM) {

                super(gpx);        

                this.pM = pM;

        }

        /*

         * (non-Javadoc)

         * @see com.iver.cit.gvsig.fmap.core.FShapeDS#getMs()

         */

        public double[] getMs() {

                return pM;

        }

        /*

         * (non-Javadoc)

         * @see com.iver.cit.gvsig.fmap.core.FPolyline3D#getShapeType()

         */

        public int getShapeType() {

                return FShape.LINE | FShape.M;

        }

        /*

         * (non-Javadoc)

         * @see com.iver.cit.gvsig.fmap.core.FPolyline3D#cloneFShape()

         */

        public FShape cloneFShape() {

                return new FPolyline2DM((GeneralPathX) gp.clone(), (double[]) pM);

        }

        /*

         * (non-Javadoc)

         * @see com.iver.cit.gvsig.fmap.core.FShapeM#setMAt(int, double)

         */

        public void setMAt(int i, double value) {

                if (i < pM.length){

                        pM[i] = value;                

                }

        }

        /*

         * (non-Javadoc)

         * @see com.iver.cit.gvsig.fmap.core.FShapeM#isDecreasing()

         */

        public boolean isDecreasing() {

                if (pM.length == 0){

                        return false;

                }

                return (pM[0] > pM[pM.length-1]);

        }

        public void revertMs(){

                double totalDistance = Math.abs(pM[0] - pM[pM.length-1]);        

                double[] percentages = new double[pM.length];

                for (int i=1 ; i<percentages.length ; i++)

                {

                        percentages [i] = (Math.abs(pM[i]-pM[i-1]))/totalDistance;

                }                

                //The first value

                double pm0 = pM[0];                

                if (!isDecreasing()){

                        pM[0] = pM[pM.length-1];

                        for (int i=1 ; i<pM.length-1 ; i++)

                        {

                                double increasing = percentages[i] * totalDistance;

                                pM[i] = pM[i-1] - increasing;                                

                        }

                }else{

                        pM[0] = pM[pM.length-1];

                        for (int i=1 ; i<pM.length-1 ; i++)

                        {

                                double decreasing = percentages[i] * totalDistance;

                                pM[i] = pM[i-1] + decreasing;                                

                        }

                }

                pM[pM.length-1] = pm0;        

        }

        /**

         * This method is used instead of the JTS ToString method. The reason is because

         * JTS doesn't support the M coordinate

         */

        public String toText(){

                StringBuffer str = new StringBuffer();

                str.append(NAME);

                str.append(" ((");

                int theType;                

                double[] theData = new double[6];                

                PathIterator theIterator = getPathIterator(null, FConverter.FLATNESS);

                int i = 0;

                while (!theIterator.isDone()) {

                        //while not done

                        theType = theIterator.currentSegment(theData);

                        double m = 0.0;

                        if (i < pM.length){

                                m = pM[i]; 

                        }

                        switch (theType) {

                        case PathIterator.SEG_MOVETO:                                        

                                str.append(theData[0] + " " + theData[1] + " " + m + ",");

                                break;

                        case PathIterator.SEG_LINETO:

                                str.append(theData[0] + " " + theData[1] + " " + m + ",");

                                break;

                        case PathIterator.SEG_QUADTO:

                                System.out.println("Not supported here");

                                break;

                        case PathIterator.SEG_CUBICTO:

                                System.out.println("Not supported here");

                                break;

                        case PathIterator.SEG_CLOSE:

                                break;

                        } //end switch

                        theIterator.next();

                        i++;

                } //end while loop                

                return str.delete(str.length()-1, str.length()) + "))";

        }

}