svn-gvsig-desktop / tags / v1_1_Build_1000 / libraries / libCq_CMS_praster / src / org / cresques / geo / UtmZone.java @ 11885
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1 | 8026 | nacho | /*
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2 | * Cresques Mapping Suite. Graphic Library for constructing mapping applications.
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3 | *
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4 | * Copyright (C) 2004-5.
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5 | *
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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 | * as published by the Free Software Foundation; either version 2
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9 | * 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 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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19 | *
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20 | * For more information, contact:
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21 | *
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22 | * cresques@gmail.com
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23 | */
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24 | package org.cresques.geo; |
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25 | |||
26 | import geojava.GeoUtm; |
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27 | import geojava.Ra2De; |
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28 | import geojava.UtmGeo; |
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29 | |||
30 | import org.cresques.cts.ICoordTrans; |
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31 | import org.cresques.cts.IDatum; |
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32 | import org.cresques.cts.IProjection; |
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33 | |||
34 | import org.cresques.px.Extent; |
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35 | |||
36 | import java.awt.Graphics2D; |
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37 | import java.awt.geom.AffineTransform; |
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38 | import java.awt.geom.Point2D; |
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39 | 10645 | nacho | import java.awt.geom.Rectangle2D; |
40 | 8026 | nacho | |
41 | |||
42 | public class UtmZone extends Projection { |
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43 | static String name = "UTM"; |
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44 | static String abrev = "UTM"; |
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45 | private final static UtmZone ed5028N = new UtmZone(Ellipsoid.ed50, 28, 0, |
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46 | 0.0);
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47 | private final static UtmZone ed5029N = new UtmZone(Ellipsoid.ed50, 29, 0, |
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48 | 0.0);
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49 | private final static UtmZone ed5030N = new UtmZone(Ellipsoid.ed50, 30, 0, |
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50 | 0.0);
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51 | private final static UtmZone ed5031N = new UtmZone(Ellipsoid.ed50, 31, 0, |
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52 | 0.0);
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53 | private final static UtmZone hayford28N = new UtmZone(Ellipsoid.hayford, |
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54 | 28, 0, 0.0); |
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55 | private final static UtmZone hayford29N = new UtmZone(Ellipsoid.hayford, |
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56 | 29, 0, 0.0); |
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57 | private final static UtmZone hayford30N = new UtmZone(Ellipsoid.hayford, |
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58 | 30, 0, 0.0); |
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59 | private final static UtmZone hayford31N = new UtmZone(Ellipsoid.hayford, |
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60 | 31, 0, 0.0); |
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61 | static GeoUtm geoutm = new GeoUtm(); |
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62 | static UtmGeo utmgeo = new UtmGeo(); |
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63 | public int Zone = 30; |
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64 | public int Hemisphere = 0; |
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65 | public double H = 0.0; |
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66 | |||
67 | public UtmZone(Ellipsoid eli, int zone, int hemisphere, double h) { |
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68 | super(eli);
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69 | Zone = zone; |
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70 | Hemisphere = hemisphere; |
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71 | H = h; |
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72 | grid = new Graticule(this); |
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73 | } |
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74 | |||
75 | public String getAbrev() { |
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76 | return abrev + Zone;
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77 | } |
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78 | |||
79 | public static UtmZone getProjection(Ellipsoid eli, int zone, int hemisphere) { |
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80 | if ((eli == Ellipsoid.hayford) && (hemisphere == 0)) { |
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81 | switch (zone) {
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82 | case 28: |
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83 | return hayford28N;
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84 | |||
85 | case 29: |
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86 | return hayford29N;
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87 | |||
88 | case 30: |
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89 | return hayford30N;
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90 | |||
91 | case 31: |
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92 | return hayford31N;
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93 | } |
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94 | } else if ((eli == Ellipsoid.ed50) && (hemisphere == 0)) { |
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95 | switch (zone) {
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96 | case 28: |
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97 | return ed5028N;
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98 | |||
99 | case 29: |
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100 | return ed5029N;
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101 | |||
102 | case 30: |
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103 | return ed5030N;
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104 | |||
105 | case 31: |
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106 | return ed5031N;
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107 | } |
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108 | } |
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109 | |||
110 | System.err.println("UtmZone.getProjection(): new " + zone); |
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111 | |||
112 | return new UtmZone(eli, zone, hemisphere, 0.0); |
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113 | } |
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114 | |||
115 | /**
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116 | *
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117 | */
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118 | public static IProjection getProjectionByName(IDatum eli, String name) { |
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119 | int zone;
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120 | int hemisphere = NORTH;
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121 | |||
122 | if (name.indexOf("UTM") < 0) { |
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123 | return null; |
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124 | } |
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125 | |||
126 | if (name.substring(0, 1).compareTo("S") == 0) { |
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127 | hemisphere = SOUTH; |
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128 | } |
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129 | |||
130 | zone = Integer.parseInt(name.substring(name.length() - 2)); |
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131 | |||
132 | return getProjection((Ellipsoid) eli, zone, hemisphere);
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133 | } |
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134 | |||
135 | /**
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136 | *
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137 | */
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138 | public Point2D createPoint(double x, double y) { |
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139 | return new UtmPoint(this, x, y); |
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140 | } |
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141 | |||
142 | /**
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143 | *
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144 | * @param uPt
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145 | * @return
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146 | */
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147 | public Point2D toGeo(Point2D uPt) { |
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148 | GeoPoint gPt = new GeoPoint();
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149 | |||
150 | return toGeo((UtmPoint) uPt, gPt);
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151 | } |
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152 | |||
153 | /**
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154 | *
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155 | * @param uPt
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156 | * @param gPt
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157 | * @return
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158 | */
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159 | public GeoPoint toGeo(UtmPoint uPt, GeoPoint gPt) {
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160 | int[] ai = new int[3]; |
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161 | double[] ad = new double[3]; |
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162 | ai[1] = ((UtmZone) uPt.proj).Zone;
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163 | ai[2] = ((UtmZone) uPt.proj).Hemisphere;
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164 | ad[1] = uPt.X;
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165 | ad[2] = uPt.Y;
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166 | |||
167 | utmgeo.set(((Projection) uPt.proj).getElliPar(), ai, ad); |
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168 | utmgeo.go(); |
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169 | |||
170 | gPt.Longitude = Ra2De.go(utmgeo.Ge[1]);
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171 | gPt.Latitude = Ra2De.go(utmgeo.Ge[2]);
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172 | gPt.proj = Geodetic.getProjection(((Projection) uPt.proj).eli); |
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173 | |||
174 | return gPt;
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175 | } |
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176 | |||
177 | /**
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178 | *
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179 | * @param gPt
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180 | * @param uPt
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181 | * @return
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182 | */
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183 | public Point2D fromGeo(Point2D gPt, Point2D uPt) { |
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184 | int[] ai = { 0, 0, 2 }; |
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185 | |||
186 | return fromGeo((GeoPoint) gPt, (UtmPoint) uPt, ai);
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187 | } |
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188 | |||
189 | /**
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190 | *
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191 | * @param gPt
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192 | * @param uPt
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193 | * @param proj
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194 | * @return
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195 | */
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196 | public UtmPoint fromGeo(GeoPoint gPt, UtmPoint uPt, UtmZone proj) {
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197 | int[] ai = { 0, proj.Zone, proj.Hemisphere }; |
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198 | |||
199 | return fromGeo(gPt, uPt, ai);
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200 | } |
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201 | |||
202 | /**
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203 | *
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204 | * @param gPt
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205 | * @param uPt
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206 | * @param ai
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207 | * @return
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208 | */
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209 | public UtmPoint fromGeo(GeoPoint gPt, UtmPoint uPt, int[] ai) { |
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210 | double[] ad = new double[4]; |
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211 | ad[1] = gPt.Longitude.ToRadians();
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212 | ad[2] = gPt.Latitude.ToRadians();
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213 | geoutm.set(((Projection) gPt.proj).getElliPar(), ai, ad); |
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214 | geoutm.go(); |
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215 | |||
216 | if (geoutm.Ier != 0) { |
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217 | return null; |
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218 | } |
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219 | |||
220 | uPt.setLocation(geoutm.Pr[1], geoutm.Pr[2]); |
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221 | |||
222 | if ((((UtmZone) uPt.proj).Zone != geoutm.Iopar[1]) || |
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223 | (((UtmZone) uPt.proj).Hemisphere != geoutm.Iopar[2])) {
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224 | uPt.proj = UtmZone.getProjection(((Projection) uPt.proj).eli, |
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225 | geoutm.Iopar[1], geoutm.Iopar[2]); |
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226 | } |
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227 | |||
228 | return uPt;
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229 | } |
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230 | |||
231 | // Calcula el step en funci?n del zoom
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232 | private void generateGrid(Graphics2D g, Extent extent, AffineTransform mat) { |
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233 | // calculo del step en funci?n del zoom
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234 | Point2D pt1 = extent.getMin();
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235 | |||
236 | double step = 1.0; |
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237 | double x = (int) pt1.getX(); |
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238 | double dist = 0.0; |
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239 | |||
240 | /* GeoPoint gp1, gp2;
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241 | gp1 = (GeoPoint) createPoint( x, (int) pt1.getY());
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242 | mat.transform(gp1, gp1);
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243 | gp2 = (GeoPoint) createPoint(gp1.getX()+100, gp1.getY()-100);
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244 | try {
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245 | mat.inverseTransform(gp2, gp2);
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246 | } catch (NoninvertibleTransformException e) {
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247 | // TODO Auto-generated catch block
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248 | e.printStackTrace();
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249 | }
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250 | dist = (gp2.getX()-x);
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251 | System.err.println("distX = " + dist);
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252 | |||
253 | if (dist > 30.0) { step = 30.0;
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254 | } else if (dist > 18.0) { step = 18.0;
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255 | } else if (dist > 12.0) { step = 12.0;
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256 | } else if (dist > 6.0) { step = 6.0;
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257 | } else if (dist > 3.0) { step = 3.0;
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258 | } else if (dist > 2.0) { step = 2.0;
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259 | } else if (dist > 1.0) { step = 1.0;
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260 | } else if (dist > .5) { step =.5;
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261 | } else if (dist > .25) { step =.25;
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262 | } else if (dist > 1.0/60*5.0) { step = 1.0/60*5.0;
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263 | } else { step = 1.0/60*2.0;
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264 | }
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265 | //step = 1.0;
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266 | */
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267 | generateGrid(g, extent, mat, step); |
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268 | } |
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269 | |||
270 | private void generateGrid(Graphics2D g, Extent extent, AffineTransform mat, |
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271 | double step) {
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272 | grid = new Graticule(this); |
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273 | |||
274 | Point2D pt1 = extent.getMin();
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275 | Point2D pt2 = extent.getMax();
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276 | GeoPoint gp1; |
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277 | GeoPoint gp2; |
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278 | UtmPoint up1 = (UtmPoint) createPoint(0, 0); |
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279 | UtmPoint up2 = (UtmPoint) createPoint(0, 0); |
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280 | Point2D.Double mp1 = new Point2D.Double(0.0, 0.0); |
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281 | Point2D.Double mp2 = new Point2D.Double(0.0, 0.0); |
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282 | Geodetic geoProj = Geodetic.getProjection((Ellipsoid) getDatum()); |
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283 | boolean esUso = false; |
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284 | |||
285 | System.err.println(name + ": ViewPort Extent = (" + pt1 + "," + pt2 + |
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286 | ")");
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287 | gp1 = (GeoPoint) toGeo(new UtmPoint(pt1.getX(), pt2.getY()));
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288 | gp2 = (GeoPoint) toGeo(new UtmPoint(pt2));
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289 | |||
290 | double xMin = (int) gp1.getX() - 1.0; |
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291 | double xMax = (int) gp2.getX() + 1.0; |
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292 | gp1 = (GeoPoint) toGeo(new UtmPoint(pt1.getX() +
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293 | ((pt2.getX() - pt1.getX()) / 2.0),
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294 | pt2.getY())); |
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295 | |||
296 | double yMax = (int) gp1.getY() + 2.0; |
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297 | gp1 = (GeoPoint) toGeo(new UtmPoint(pt1));
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298 | |||
299 | double yMin = (int) gp1.getY() - 1.0; |
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300 | xMin = -30.0;
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301 | xMax = 30.0;
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302 | yMin = 20.0;
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303 | yMax = 60.0;
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304 | |||
305 | for (double x = xMin; x <= xMax; x += step) { |
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306 | up1 = null;
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307 | |||
308 | if (Math.abs((x) % 6) < .001) { |
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309 | esUso = true;
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310 | } |
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311 | |||
312 | for (double y = yMin; y <= yMax; y += step) { |
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313 | gp2 = (GeoPoint) geoProj.createPoint(x, y); |
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314 | fromGeo(gp2, up2, this);
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315 | |||
316 | if ((up1 != null) && (extent.isAt(up1) || extent.isAt(up2))) { |
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317 | mat.transform(up2, mp2); |
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318 | |||
319 | if (up1 != null) { |
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320 | if (esUso) {
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321 | grid.addLine(mp1, mp2, 1);
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322 | } else {
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323 | grid.addLine(mp1, mp2); |
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324 | } |
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325 | } |
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326 | } else {
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327 | mat.transform(up2, mp2); |
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328 | } |
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329 | |||
330 | up1 = (UtmPoint) up2.clone(); |
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331 | mp1 = (Point2D.Double) mp2.clone();
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332 | } |
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333 | |||
334 | esUso = false;
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335 | } |
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336 | |||
337 | for (double y = yMin; y <= yMax; y += step) { |
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338 | up1 = null;
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339 | |||
340 | for (double x = xMin; x <= xMax; x += step) { |
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341 | gp2 = (GeoPoint) geoProj.createPoint(x, y); |
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342 | fromGeo(gp2, up2, this);
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343 | |||
344 | if ((up1 != null) && (extent.isAt(up1) || extent.isAt(up2))) { |
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345 | mat.transform(up2, mp2); |
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346 | |||
347 | if (up1 != null) { |
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348 | grid.addLine(mp1, mp2); |
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349 | } |
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350 | } else {
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351 | mat.transform(up2, mp2); |
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352 | } |
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353 | |||
354 | up1 = (UtmPoint) up2.clone(); |
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355 | mp1 = (Point2D.Double) mp2.clone();
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356 | } |
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357 | } |
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358 | } |
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359 | |||
360 | public void drawGrid(Graphics2D g, ViewPortData vp) { |
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361 | generateGrid(g, vp.getExtent(), vp.getMat()); |
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362 | grid.setColor(gridColor); |
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363 | grid.draw(g, vp); |
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364 | } |
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365 | |||
366 | /* (non-Javadoc)
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367 | * @see org.cresques.cts.IProjection#getScale(double, double, double, double)
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368 | */
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369 | public double getScale(double minX, double maxX, double width, double dpi) { |
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370 | double scale = ((maxX - minX) * // metros |
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371 | (dpi / 2.54 * 100.0)) / // px / metro |
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372 | width; // pixels
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373 | |||
374 | return scale;
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375 | } |
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376 | |||
377 | public ICoordTrans getCT(IProjection dest) {
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378 | // TODO Auto-generated method stub
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379 | return null; |
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380 | } |
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381 | 10645 | nacho | |
382 | public Rectangle2D getExtent(Rectangle2D extent, double scale, double wImage, double hImage, double changeUnits, double dpi) { |
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383 | double w =0; |
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384 | double h =0; |
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385 | double wExtent =0; |
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386 | double hExtent =0; |
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387 | w = ((wImage / dpi) * 2.54);
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388 | h = ((hImage / dpi) * 2.54);
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389 | wExtent =w * scale/ changeUnits; |
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390 | hExtent =h * scale/ changeUnits; |
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391 | double xExtent = extent.getCenterX() - wExtent/2; |
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392 | double yExtent = extent.getCenterY() - hExtent/2; |
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393 | Rectangle2D rec=new Rectangle2D.Double(xExtent,yExtent,wExtent,hExtent); |
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394 | return rec;
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395 | } |
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396 | 11345 | dguerrero | |
397 | public String getFullCode() { |
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398 | return getAbrev();
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399 | } |
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400 | 8026 | nacho | } |