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 / CoordSys.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 java.awt.Color; |
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27 | import java.awt.Graphics2D; |
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28 | import java.awt.geom.Point2D; |
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29 | import java.awt.geom.Rectangle2D; |
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30 | |||
31 | import org.cresques.cts.ICoordTrans; |
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32 | import org.cresques.cts.IDatum; |
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33 | import org.cresques.cts.IProjection; |
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34 | import org.cresques.geo.ViewPortData; |
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35 | import org.geotools.cs.CoordinateSystem; |
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36 | import org.geotools.cs.CoordinateSystemFactory; |
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37 | import org.geotools.cs.GeographicCoordinateSystem; |
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38 | import org.geotools.cs.ProjectedCoordinateSystem; |
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39 | import org.gvsig.fmap.crs.CRSFactory; |
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40 | import org.opengis.referencing.FactoryException; |
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41 | |||
42 | |||
43 | /**
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44 | * Sistema de Coordenadas (Proyecci?n).
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45 | * @author "Luis W. Sevilla" <sevilla_lui@gva.es>
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46 | */
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47 | public class CoordSys implements IProjection { |
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48 | private static final Color basicGridColor = new Color(64, 64, 64, 128); |
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49 | protected CoordinateSystemFactory csFactory = CoordinateSystemFactory.getDefault();
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50 | protected CSDatum datum = null; |
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51 | protected GeographicCoordinateSystem geogCS = null; |
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52 | protected ProjectedCoordinateSystem projCS = null; |
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53 | protected String abrev = ""; |
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54 | Color gridColor = basicGridColor;
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55 | |||
56 | public CoordSys(CSDatum datum) {
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57 | this.datum = datum;
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58 | this.geogCS = new GeographicCoordinateSystem(datum.getName(null), datum.getDatum()); |
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59 | } |
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60 | |||
61 | public CoordSys(String wkt) { |
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62 | try {
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63 | //((GeographicCoordinateSystem)
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64 | CoordinateSystem cs = CoordinateSystemFactory.getDefault().createFromWKT(wkt); |
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65 | // ).getHorizontalDatum();
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66 | if (cs instanceof GeographicCoordinateSystem) |
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67 | geogCS = (GeographicCoordinateSystem) cs; |
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68 | if (cs instanceof ProjectedCoordinateSystem) { |
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69 | projCS = (ProjectedCoordinateSystem) cs; |
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70 | geogCS = projCS.getGeographicCoordinateSystem(); |
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71 | } |
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72 | datum = new CSDatum(geogCS.getHorizontalDatum());
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73 | } catch (FactoryException e) {
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74 | // TODO Auto-generated catch block
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75 | e.printStackTrace(); |
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76 | } |
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77 | } |
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78 | |||
79 | /**
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80 | * Crea un nuevo CoordSys geogr?fico a partir de uno proyectado.
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81 | * Si el actual es geogr?fico retorna el mismo.
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82 | * @return
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83 | */
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84 | public CoordSys toGeo() {
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85 | CoordSys coordSys = new CoordSys((CSDatum) getDatum());
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86 | |||
87 | if (geogCS != null) { |
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88 | coordSys.geogCS = this.geogCS;
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89 | } else {
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90 | coordSys.geogCS = projCS.getGeographicCoordinateSystem(); |
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91 | } |
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92 | |||
93 | return coordSys;
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94 | } |
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95 | |||
96 | public IDatum getDatum() {
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97 | return datum;
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98 | } |
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99 | |||
100 | public CoordinateSystem getCS() {
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101 | if (projCS != null) { |
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102 | return projCS;
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103 | } |
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104 | |||
105 | return geogCS;
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106 | } |
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107 | |||
108 | public CoordinateSystem getGeogCS() {
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109 | if (geogCS != null) { |
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110 | return geogCS;
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111 | } |
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112 | |||
113 | return projCS.getGeographicCoordinateSystem();
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114 | } |
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115 | |||
116 | /* (no Javadoc)
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117 | * @see org.cresques.cts.IProjection#createPoint(double, double)
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118 | */
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119 | public Point2D createPoint(double x, double y) { |
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120 | return new Point2D.Double(x, y); |
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121 | } |
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122 | |||
123 | public String toString() { |
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124 | if (projCS != null) { |
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125 | return projCS.toString();
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126 | } |
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127 | |||
128 | return geogCS.toString();
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129 | } |
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130 | |||
131 | public void setAbrev(String abrev) { |
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132 | this.abrev = abrev;
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133 | } |
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134 | |||
135 | public String getAbrev() { |
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136 | return abrev;
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137 | } |
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138 | |||
139 | /* (no Javadoc)
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140 | * @see org.cresques.cts.IProjection#drawGrid(java.awt.Graphics2D, org.cresques.geo.ViewPortData)
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141 | */
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142 | public void drawGrid(Graphics2D g, ViewPortData vp) { |
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143 | // TODO Ap?ndice de m?todo generado autom?ticamente
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144 | } |
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145 | |||
146 | public void setGridColor(Color c) { |
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147 | gridColor = c; |
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148 | } |
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149 | |||
150 | public Color getGridColor() { |
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151 | return gridColor;
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152 | } |
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153 | |||
154 | /* (no Javadoc)
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155 | * @see org.cresques.cts.IProjection#toGeo(java.awt.geom.Point2D)
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156 | */
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157 | public Point2D toGeo(Point2D pt) { |
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158 | //TODO VCN Esto si no lo comento no me trasforma el punto en coordenadas geogr?ficas.
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159 | // if (getGeogCS() == geogCS) {
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160 | // return pt;
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161 | // } else {
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162 | CoordTrans ct = new CoordTrans(this, toGeo()); |
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163 | |||
164 | return ct.convert(pt, null); |
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165 | // }
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166 | } |
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167 | |||
168 | /* (no Javadoc)
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169 | * @see org.cresques.cts.IProjection#fromGeo(java.awt.geom.Point2D, java.awt.geom.Point2D)
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170 | */
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171 | public Point2D fromGeo(Point2D gPt, Point2D mPt) { |
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172 | // TODO Ap?ndice de m?todo generado autom?ticamente
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173 | return null; |
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174 | } |
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175 | |||
176 | public double getScale(double minX, double maxX, double w, double dpi) { |
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177 | double scale = 0D; |
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178 | |||
179 | if (projCS == null) { // Es geogr?fico; calcula la escala. |
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180 | scale = ((maxX - minX) * // grados
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181 | |||
182 | // 1852.0 metros x minuto de meridiano
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183 | (dpi / 2.54 * 100.0 * 1852.0 * 60.0)) / // px / metro |
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184 | w; // pixels
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185 | } |
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186 | |||
187 | return scale;
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188 | } |
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189 | public Rectangle2D getExtent(Rectangle2D extent,double scale,double wImage,double hImage,double mapUnits,double distanceUnits,double dpi) { |
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190 | double w =0; |
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191 | double h =0; |
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192 | double wExtent =0; |
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193 | double hExtent =0; |
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194 | if (projCS!=null) { |
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195 | w = ((wImage / dpi) * 2.54);
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196 | h = ((hImage / dpi) * 2.54);
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197 | wExtent =w * scale*distanceUnits/ mapUnits; |
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198 | hExtent =h * scale*distanceUnits/ mapUnits; |
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199 | |||
200 | }else {
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201 | w = ((wImage / dpi) * 2.54);
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202 | h = ((hImage / dpi) * 2.54);
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203 | wExtent =(w*scale*distanceUnits)/ (mapUnits*1852.0*60.0); |
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204 | hExtent =(h*scale*distanceUnits)/ (mapUnits*1852.0*60.0); |
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205 | } |
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206 | double xExtent = extent.getCenterX() - wExtent/2; |
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207 | double yExtent = extent.getCenterY() - hExtent/2; |
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208 | Rectangle2D rec=new Rectangle2D.Double(xExtent,yExtent,wExtent,hExtent); |
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209 | return rec;
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210 | } |
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211 | public boolean isProjected() { |
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212 | return projCS != null; |
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213 | } |
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214 | |||
215 | public ICoordTrans getCT(IProjection dest) {
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216 | return new CoordTrans(this, (CoordSys) dest); |
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217 | } |
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218 | |||
219 | public String getFullCode() { |
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220 | return getAbrev();
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221 | } |
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222 | |||
223 | public Object clone() throws CloneNotSupportedException { |
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224 | return CRSFactory.getCRS( this.getFullCode() ); |
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225 | } |
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226 | |||
227 | } |