svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.projection / org.gvsig.projection.cresques / org.gvsig.projection.cresques.impl / src / main / java / org / cresques / impl / geo / Polygon2D.java @ 40559
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1 | 40559 | jjdelcerro | /**
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2 | * gvSIG. Desktop Geographic Information System.
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3 | 40455 | jjdelcerro | *
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4 | 40559 | jjdelcerro | * Copyright (C) 2007-2013 gvSIG Association.
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5 | 40455 | jjdelcerro | *
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6 | * This program is free software; you can redistribute it and/or
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7 | * modify it under the terms of the GNU General Public License
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8 | 40559 | jjdelcerro | * as published by the Free Software Foundation; either version 3
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9 | 40455 | jjdelcerro | * of the License, or (at your option) any later version.
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10 | *
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11 | * This program is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | * GNU General Public License for more details.
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15 | *
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16 | * You should have received a copy of the GNU General Public License
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17 | * along with this program; if not, write to the Free Software
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18 | 40559 | jjdelcerro | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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19 | * MA 02110-1301, USA.
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20 | 40455 | jjdelcerro | *
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21 | 40559 | jjdelcerro | * For any additional information, do not hesitate to contact us
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22 | * at info AT gvsig.com, or visit our website www.gvsig.com.
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23 | 40455 | jjdelcerro | */
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24 | package org.cresques.impl.geo; |
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25 | |||
26 | import java.awt.Graphics2D; |
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27 | import java.awt.geom.GeneralPath; |
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28 | import java.awt.geom.Point2D; |
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29 | |||
30 | import java.util.Iterator; |
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31 | import java.util.Vector; |
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32 | |||
33 | import org.cresques.geo.ViewPortData; |
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34 | |||
35 | |||
36 | /**
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37 | * Clase que representa un pol?gono 2D
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38 | * @author "Luis W. Sevilla" <sevilla_lui@gva.es>
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39 | */
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40 | public class Polygon2D extends Vector { |
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41 | GeneralPath gp = null; |
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42 | |||
43 | public Polygon2D() {
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44 | super();
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45 | gp = null;
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46 | } |
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47 | |||
48 | /**
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49 | * A?ade un vertice al po??gono
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50 | * @param pt punto 2D que representa el vertice a?adido
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51 | */
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52 | public void addPoint(Point2D pt) { |
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53 | super.add(pt);
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54 | } |
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55 | |||
56 | /**
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57 | * Dibuja el pol?gono
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58 | * @param g Graphics sobre el que dibuja
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59 | * @param vp ViewPort con la vista
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60 | */
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61 | public void draw(Graphics2D g, ViewPortData vp) { |
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62 | newGP(vp); |
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63 | g.draw(gp); |
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64 | |||
65 | //g.draw(new Line2D.Double(pt,pt0));
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66 | } |
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67 | |||
68 | /**
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69 | *
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70 | * @param g
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71 | * @param vp
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72 | */
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73 | public void fill(Graphics2D g, ViewPortData vp) { |
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74 | newGP(vp); |
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75 | g.fill(gp); |
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76 | } |
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77 | |||
78 | /**
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79 | *
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80 | * @param vp
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81 | */
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82 | private void newGP(ViewPortData vp) { |
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83 | //if (gp != null) return;
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84 | gp = new GeneralPath(); |
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85 | |||
86 | Point2D pt0 = null; |
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87 | Point2D pt = null; |
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88 | Point2D pt1 = null; |
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89 | Point2D.Double ptTmp = new Point2D.Double(0.0, 0.0); |
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90 | Iterator iter = iterator();
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91 | |||
92 | while (iter.hasNext()) {
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93 | pt1 = (Point2D) iter.next();
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94 | vp.mat.transform(pt1, ptTmp); |
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95 | |||
96 | if (pt0 == null) { |
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97 | pt0 = ptTmp; |
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98 | gp.moveTo((float) ptTmp.getX(), (float) ptTmp.getY()); |
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99 | } else {
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100 | gp.lineTo((float) ptTmp.getX(), (float) ptTmp.getY()); |
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101 | } |
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102 | } |
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103 | |||
104 | gp.closePath(); |
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105 | } |
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106 | } |