Application: gvSIG desktop

package org.cresques.geo;

/*

 * Created on 21-abr-2004

 */

import java.awt.Graphics2D;

import java.awt.geom.GeneralPath;

import java.awt.geom.Point2D;

import java.util.Iterator;

import java.util.Vector;

/**

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

 */

public class Polygon2D extends Vector {

        GeneralPath gp = null;

        public Polygon2D() {

                super();

                gp = null;

        }

        public void addPoint(Point2D pt) {super.add(pt);}

        public void draw(Graphics2D g, ViewPortData vp) {

                newGP(vp);

                g.draw(gp);

                //g.draw(new Line2D.Double(pt,pt0));

        }

        public void fill(Graphics2D g, ViewPortData vp) {

                newGP(vp);

                g.fill(gp);

        }

        private void newGP(ViewPortData vp) {

                //if (gp != null) return;

                gp = new GeneralPath();

                Point2D pt0 = null, pt=null, pt1=null;

                Point2D.Double ptTmp = new Point2D.Double(0.0, 0.0);

                Iterator iter = iterator();

                while (iter.hasNext()) {

                        pt1 = (Point2D) iter.next();

                        vp.mat.transform(pt1, ptTmp);

                        if (pt0 == null) { 

                                pt0 = ptTmp;

                                gp.moveTo((float)ptTmp.getX(), (float)ptTmp.getY());

                        } else {

                                gp.lineTo((float)ptTmp.getX(), (float)ptTmp.getY());

                        }

                }

                gp.closePath();

        }

}