root / branches / F2 / libraries / libJCRS / src / org / gvsig / crs / CrsGT.java @ 11398
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| 1 | 11241 | dguerrero | /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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| 2 | *
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| 3 | * Copyright (C) 2006 Instituto de Desarrollo Regional and Generalitat Valenciana.
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| 4 | *
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| 5 | * This program is free software; you can redistribute it and/or
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| 6 | * modify it under the terms of the GNU General Public License
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| 7 | * as published by the Free Software Foundation; either version 2
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| 8 | * of the License, or (at your option) any later version.
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| 9 | *
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| 10 | * This program is distributed in the hope that it will be useful,
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| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 13 | * GNU General Public License for more details.
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| 14 | *
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| 15 | * You should have received a copy of the GNU General Public License
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| 16 | * along with this program; if not, write to the Free Software
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| 17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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| 18 | *
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| 19 | * For more information, contact:
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| 20 | *
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| 21 | * Generalitat Valenciana
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| 22 | * Conselleria d'Infraestructures i Transport
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| 23 | * Av. Blasco Ib??ez, 50
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| 24 | * 46010 VALENCIA
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| 25 | * SPAIN
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| 26 | *
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| 27 | * +34 963862235
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| 28 | * gvsig@gva.es
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| 29 | * www.gvsig.gva.es
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| 30 | *
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| 31 | * or
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| 32 | *
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| 33 | * Instituto de Desarrollo Regional (Universidad de Castilla La-Mancha)
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| 34 | * Campus Universitario s/n
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| 35 | * 02071 Alabacete
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| 36 | * Spain
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| 37 | *
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| 38 | * +34 967 599 200
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| 39 | */
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| 40 | |||
| 41 | package org.gvsig.crs; |
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| 42 | |||
| 43 | import java.awt.Color; |
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| 44 | import java.awt.Graphics2D; |
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| 45 | import java.awt.geom.Point2D; |
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| 46 | import java.awt.geom.Rectangle2D; |
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| 47 | |||
| 48 | import org.cresques.cts.ICoordTrans; |
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| 49 | import org.cresques.cts.IDatum; |
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| 50 | import org.cresques.cts.IProjection; |
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| 51 | import org.cresques.geo.ViewPortData; |
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| 52 | 11398 | dguerrero | import org.geotools.referencing.crs.AbstractDerivedCRS; |
| 53 | import org.geotools.referencing.crs.AbstractSingleCRS; |
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| 54 | import org.geotools.referencing.datum.DefaultGeodeticDatum; |
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| 55 | 11304 | dguerrero | import org.gvsig.crs.proj.CrsProj; |
| 56 | import org.gvsig.crs.proj.CrsProjException; |
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| 57 | import org.gvsig.crs.proj.JNIBaseCrs; |
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| 58 | import org.gvsig.crs.proj.OperationCrsException; |
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| 59 | 11241 | dguerrero | import org.opengis.referencing.crs.CoordinateReferenceSystem; |
| 60 | |||
| 61 | /**
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| 62 | * Clase que representa un CRS basado en GeoTools/GeoApi.
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| 63 | *
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| 64 | * @author Diego Guerrero Sevilla (diego.guerrero@uclm.es)
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| 65 | *
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| 66 | */
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| 67 | public class CrsGT implements ICrs { |
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| 68 | 11304 | dguerrero | private static final Color basicGridColor = new Color(64, 64, 64, 128); |
| 69 | 11241 | dguerrero | |
| 70 | 11306 | dguerrero | /**
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| 71 | * CRS GeoApi. Nucleo de la clare CrsGT.
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| 72 | */
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| 73 | 11304 | dguerrero | private CoordinateReferenceSystem crsGT = null; |
| 74 | 11306 | dguerrero | |
| 75 | 11304 | dguerrero | private boolean targetNad = false; |
| 76 | 11306 | dguerrero | /**
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| 77 | *Cadena proj4
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| 78 | */
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| 79 | 11304 | dguerrero | private String proj4 = null; |
| 80 | 11306 | dguerrero | |
| 81 | 11304 | dguerrero | private Color gridColor = basicGridColor; |
| 82 | 11306 | dguerrero | |
| 83 | /**
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| 84 | * Par?metro nadgrid para proj4.
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| 85 | */
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| 86 | 11304 | dguerrero | private String nad = null; |
| 87 | 11241 | dguerrero | |
| 88 | /**
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| 89 | 11306 | dguerrero | * CRS operable con proj4.
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| 90 | */
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| 91 | private CrsProj crsProj = null; |
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| 92 | |||
| 93 | /**
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| 94 | * CRS Base operable con proj4.
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| 95 | */
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| 96 | private CrsProj crsProjBase = null; |
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| 97 | |||
| 98 | /**
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| 99 | * Provisional, hasta que se elimine getCrsWkt de ICrs.
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| 100 | */
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| 101 | private CrsWkt crsWkt = null; |
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| 102 | |||
| 103 | |||
| 104 | |||
| 105 | /**
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| 106 | 11241 | dguerrero | * Constructor a partir de un CoordinateReferenceSystem
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| 107 | *
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| 108 | * @param crsGT
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| 109 | 11306 | dguerrero | * @throws CrsProjException
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| 110 | 11241 | dguerrero | */
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| 111 | 11306 | dguerrero | public CrsGT(CoordinateReferenceSystem crsGT){
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| 112 | 11241 | dguerrero | this.crsGT = crsGT;
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| 113 | 11306 | dguerrero | Proj4 proj4; |
| 114 | try {
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| 115 | proj4 = new Proj4();
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| 116 | crsProj = new CrsProj(proj4.exportToProj4(crsGT));
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| 117 | if (crsGT instanceof AbstractDerivedCRS){ |
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| 118 | AbstractDerivedCRS derivedCRS = (AbstractDerivedCRS)crsGT; |
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| 119 | crsProjBase = new CrsProj(proj4.exportToProj4(derivedCRS.getBaseCRS()));
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| 120 | } |
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| 121 | } catch (CrsException e) {
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| 122 | // TODO Auto-generated catch block
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| 123 | e.printStackTrace(); |
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| 124 | } |
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| 125 | |||
| 126 | crsWkt = new CrsWkt(crsGT);
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| 127 | 11241 | dguerrero | } |
| 128 | |||
| 129 | public int getCode() { |
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| 130 | 11304 | dguerrero | return Integer.valueOf(getAbrev().split(":")[1]).intValue(); |
| 131 | 11241 | dguerrero | } |
| 132 | |||
| 133 | public CrsWkt getCrsWkt() {
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| 134 | 11306 | dguerrero | return crsWkt;
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| 135 | 11241 | dguerrero | } |
| 136 | |||
| 137 | public String getWKT() { |
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| 138 | 11306 | dguerrero | return crsGT.toWKT();
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| 139 | 11241 | dguerrero | } |
| 140 | |||
| 141 | public void setNadGrid(String nad) { |
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| 142 | 11304 | dguerrero | this.nad = nad;
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| 143 | 11241 | dguerrero | |
| 144 | } |
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| 145 | |||
| 146 | public void setNadInTarget(boolean targetNad) { |
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| 147 | // TODO Auto-generated method stub
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| 148 | |||
| 149 | } |
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| 150 | |||
| 151 | public Point2D createPoint(double x, double y) { |
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| 152 | // TODO Auto-generated method stub
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| 153 | return null; |
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| 154 | } |
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| 155 | |||
| 156 | public void drawGrid(Graphics2D g, ViewPortData vp) { |
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| 157 | // TODO Auto-generated method stub
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| 158 | |||
| 159 | } |
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| 160 | |||
| 161 | public Point2D fromGeo(Point2D gPt, Point2D mPt) { |
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| 162 | // TODO Auto-generated method stub
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| 163 | return null; |
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| 164 | } |
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| 165 | |||
| 166 | public String getAbrev() { |
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| 167 | 11277 | dguerrero | AbstractSingleCRS crs = (AbstractSingleCRS)crsGT; |
| 168 | String authority = crs.getName().toString().split(":")[0]; |
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| 169 | 11398 | dguerrero | //return ((AbstractSingleCRS)crsGT).getIdentifier(Citations.fromName(authority)).toString();
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| 170 | return ((AbstractSingleCRS)crsGT).getIdentifiers().iterator().next().toString();
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| 171 | 11241 | dguerrero | } |
| 172 | |||
| 173 | public ICoordTrans getCT(IProjection dest) {
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| 174 | 11304 | dguerrero | COperation operation = null;
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| 175 | CrsGT crsDest = (CrsGT)dest; |
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| 176 | try {
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| 177 | operation = new COperation(this, (ICrs)dest); |
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| 178 | } catch (CrsException e) {
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| 179 | // TODO Auto-generated catch block
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| 180 | e.printStackTrace(); |
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| 181 | } |
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| 182 | |||
| 183 | if (!getNadGrid().equals("")){ |
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| 184 | if (isTargetNad())
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| 185 | operation.setNadCrsProj(new CrsProj(crsDest.getProj4()+getNadGrid()), true); |
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| 186 | else
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| 187 | operation.setNadCrsProj(new CrsProj(getProj4()+getNadGrid()), false); |
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| 188 | return operation;
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| 189 | } |
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| 190 | |||
| 191 | return operation;
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| 192 | 11241 | dguerrero | } |
| 193 | |||
| 194 | public IDatum getDatum() {
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| 195 | 11277 | dguerrero | DefaultGeodeticDatum datumGT = (DefaultGeodeticDatum)((AbstractSingleCRS)crsGT).getDatum(); |
| 196 | CRSDatum datum = new CRSDatum(datumGT.getEllipsoid().getSemiMajorAxis(),datumGT.getEllipsoid().getInverseFlattening());
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| 197 | return datum;
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| 198 | 11241 | dguerrero | } |
| 199 | |||
| 200 | public Rectangle2D getExtent(Rectangle2D extent, double scale, |
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| 201 | double wImage, double hImage, double changeUnits, double dpi) { |
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| 202 | // TODO Auto-generated method stub
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| 203 | return null; |
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| 204 | } |
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| 205 | |||
| 206 | public Color getGridColor() { |
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| 207 | 11304 | dguerrero | return gridColor;
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| 208 | 11241 | dguerrero | } |
| 209 | |||
| 210 | public double getScale(double minX, double maxX, double width, double dpi) { |
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| 211 | 11304 | dguerrero | double scale = 0D; |
| 212 | if (!isProjected()) { // Es geogr?fico; calcula la escala. |
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| 213 | scale = ((maxX - minX) * // grados
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| 214 | |||
| 215 | // 1852.0 metros x minuto de meridiano
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| 216 | (dpi / 2.54 * 100.0 * 1852.0 * 60.0)) / // px / metro |
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| 217 | width; // pixels
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| 218 | } |
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| 219 | else{
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| 220 | scale = ((maxX - minX) * // metros
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| 221 | (dpi / 2.54 * 100.0)) / // px / metro |
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| 222 | width; // pixels
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| 223 | } |
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| 224 | return scale;
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| 225 | 11241 | dguerrero | } |
| 226 | |||
| 227 | public boolean isProjected() { |
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| 228 | if (crsGT instanceof AbstractDerivedCRS){ |
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| 229 | return true; |
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| 230 | }else
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| 231 | return false; |
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| 232 | } |
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| 233 | |||
| 234 | public void setGridColor(Color c) { |
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| 235 | 11304 | dguerrero | gridColor = c; |
| 236 | 11241 | dguerrero | } |
| 237 | |||
| 238 | public Point2D toGeo(Point2D pt) { |
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| 239 | 11304 | dguerrero | if (isProjected()){
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| 240 | double x[] = {pt.getX()}; |
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| 241 | double y[] = {pt.getY()}; |
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| 242 | double z[] = {0D}; |
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| 243 | try {
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| 244 | JNIBaseCrs.operate( x , y, z, |
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| 245 | 11306 | dguerrero | crsProj,crsProjBase); |
| 246 | 11304 | dguerrero | } catch (OperationCrsException e) {
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| 247 | // TODO Auto-generated catch block
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| 248 | e.printStackTrace(); |
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| 249 | } catch (CrsProjException e) {
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| 250 | // TODO Auto-generated catch block
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| 251 | e.printStackTrace(); |
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| 252 | } |
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| 253 | return new Point2D.Double(x[0],y[0]); |
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| 254 | } |
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| 255 | else
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| 256 | return pt;
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| 257 | 11241 | dguerrero | } |
| 258 | |||
| 259 | 11304 | dguerrero | public String getNadGrid() { |
| 260 | return nad;
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| 261 | } |
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| 262 | |||
| 263 | /**
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| 264 | * @return
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| 265 | */
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| 266 | public boolean isTargetNad() { |
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| 267 | return targetNad;
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| 268 | } |
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| 269 | |||
| 270 | /**
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| 271 | *
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| 272 | * @return
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| 273 | */
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| 274 | public String getProj4() { |
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| 275 | return proj4;
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| 276 | } |
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| 277 | |||
| 278 | public CoordinateReferenceSystem getCrsGT() {
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| 279 | return crsGT;
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| 280 | } |
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| 281 | |||
| 282 | 11241 | dguerrero | } |