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 / cts / gt2 / CSUTM.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.cts.gt2; |
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25 | |||
26 | import org.cresques.cts.UTM; |
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27 | import org.geotools.cs.AxisInfo; |
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28 | import org.geotools.cs.Projection; |
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29 | import org.geotools.units.Unit; |
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30 | import org.gvsig.fmap.crs.CRSFactory; |
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31 | import org.opengis.referencing.FactoryException; |
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32 | |||
33 | |||
34 | /**
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35 | * @author "Luis W. Sevilla" <sevilla_lui@gva.es>
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36 | */
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37 | public class CSUTM extends CoordSys implements UTM { |
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38 | public CSUTM(CSDatum datum, int zone) { |
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39 | super(datum);
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40 | init(datum, zone, "N");
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41 | } |
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42 | |||
43 | public CSUTM(CSDatum datum, int zone, String ns) { |
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44 | super(datum);
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45 | init(datum, zone, ns); |
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46 | } |
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47 | |||
48 | public void init(CSDatum datum, int zone, String ns) { |
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49 | Unit linearUnit = Unit.METRE; |
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50 | |||
51 | javax.media.jai.ParameterList params = csFactory.createProjectionParameterList("Transverse_Mercator");
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52 | params.setParameter("semi_major",
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53 | datum.getDatum().getEllipsoid().getSemiMajorAxis()); |
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54 | params.setParameter("semi_minor",
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55 | datum.getDatum().getEllipsoid().getSemiMinorAxis()); |
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56 | params.setParameter("central_meridian", (double) ((zone * 6) - 183)); |
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57 | params.setParameter("latitude_of_origin", 0.0); |
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58 | params.setParameter("scale_factor", 0.9996); |
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59 | params.setParameter("false_easting", 500000.0); |
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60 | if (ns.toUpperCase().compareTo("S") == 0) |
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61 | params.setParameter("false_northing", 10000000.0); |
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62 | else
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63 | params.setParameter("false_northing", 0.0); |
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64 | |||
65 | try {
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66 | Projection projection = csFactory.createProjection("UTM" + zone,
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67 | "Transverse_Mercator",
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68 | params); |
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69 | projCS = csFactory.createProjectedCoordinateSystem(projection.getName() |
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70 | .toString(), |
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71 | geogCS, |
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72 | projection, |
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73 | linearUnit, |
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74 | AxisInfo.X, |
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75 | AxisInfo.Y); |
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76 | } catch (FactoryException e) {
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77 | // TODO Bloque catch generado autom?ticamente
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78 | e.printStackTrace(); |
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79 | } |
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80 | } |
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81 | |||
82 | public double getScale(double minX, double maxX, double w, double dpi) { |
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83 | double scale = super.getScale(minX, maxX, w, dpi); |
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84 | |||
85 | if (projCS != null) { // Es geogr?fico; calcula la escala. |
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86 | scale = ((maxX - minX) * // metros
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87 | (dpi / 2.54 * 100.0)) / // px / metro |
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88 | w; // pixels
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89 | } |
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90 | |||
91 | return scale;
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92 | } |
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93 | |||
94 | public String toString() { |
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95 | return projCS.toString();
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96 | } |
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97 | |||
98 | public Object clone() throws CloneNotSupportedException { |
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99 | return CRSFactory.getCRS( this.getFullCode() ); |
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100 | } |
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101 | |||
102 | } |