svn-gvsig-desktop / branches / F2 / libraries / libJCRS / src / org / gvsig / crs / Crs.java @ 11281
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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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*
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* Copyright (C) 2006 Instituto de Desarrollo Regional and Generalitat Valenciana.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*
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* For more information, contact:
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*
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* Generalitat Valenciana
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* Conselleria d'Infraestructures i Transport
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* Av. Blasco Ib??ez, 50
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* 46010 VALENCIA
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* SPAIN
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*
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* +34 963862235
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* gvsig@gva.es
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* www.gvsig.gva.es
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*
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* or
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*
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* Instituto de Desarrollo Regional (Universidad de Castilla La-Mancha)
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* Campus Universitario s/n
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* 02071 Alabacete
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* Spain
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*
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* +34 967 599 200
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*/
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package org.gvsig.crs; |
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import java.awt.Color; |
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import java.awt.Graphics2D; |
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import java.awt.geom.Point2D; |
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import java.awt.geom.Rectangle2D; |
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import org.cresques.cts.ICoordTrans; |
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import org.cresques.cts.IDatum; |
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import org.cresques.cts.IProjection; |
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import org.cresques.geo.ViewPortData; |
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import org.geotools.referencing.CRS; |
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import org.gvsig.crs.proj.CrsProj; |
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import org.gvsig.crs.proj.CrsProjException; |
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import org.gvsig.crs.proj.JNIBaseCrs; |
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import org.gvsig.crs.proj.OperationCrsException; |
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import org.opengis.referencing.FactoryException; |
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import org.opengis.referencing.NoSuchAuthorityCodeException; |
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import org.opengis.referencing.crs.CoordinateReferenceSystem; |
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import es.gva.cit.jogr.CrsGdalException; |
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import es.gva.cit.jogr.CrsOgrException; |
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import es.gva.cit.jogr.OGRException; |
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import es.gva.cit.jogr.OGRSpatialReference; |
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/**
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* Clase que construye el CRS a partir de la cadena WKT
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* @author Jos? Luis G?mez Mart?nez (jolugomar@gmail.com)
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* @author Diego Guerrero Sevilla (diego.guerrero@uclm.es)
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* @author Miguel Garc?a Jim?nez (garciajimenez.miguel@gmail.com)
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*
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*/
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public class Crs implements ICrs { |
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private static final Color basicGridColor = new Color(64, 64, 64, 128); |
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private String proj4; |
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private String trans; |
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//private String transOrigin = "";
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private String abrev; |
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private String name = ""; |
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private CrsProj crsProj4;
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private CrsProj crsBase = null; |
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private CrsWkt crsWkt;
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private int epsg_code = 23030; |
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boolean targetNad = false; |
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String nad = ""; |
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String wkt = null; |
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Color gridColor = basicGridColor;
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CRSDatum datum = null;
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private CoordinateReferenceSystem gtCrs;
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public Crs(int epsgCode, int aut) throws CrsException |
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{
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String strEpsgCode = ""; |
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if (aut == 1) { |
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strEpsgCode="EPSG:"+epsgCode;
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} else if (aut == 2){ |
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strEpsgCode="ESRI:"+epsgCode;
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} else if (aut == 3){ |
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strEpsgCode="IAU2000:"+epsgCode;
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} else if (aut == 4) { |
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strEpsgCode="USR:"+epsgCode;
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} else System.out.println("Error, autorithy err?neo"); |
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crsWkt=new CrsWkt(strEpsgCode);
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setWKT(crsWkt.getWkt()); |
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} |
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/**
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* Construye un CRS a partir del c?digo EPSG o de la cadena WKT.
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*
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* @param code
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* @throws CrsException
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*/
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public Crs(String code) throws CrsException { |
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String fullCode;
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setWKT(code); |
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if(code.charAt(0) == 'E' || code.charAt(0) == 'G' || code.charAt(0) == 'P') |
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fullCode = code; |
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else fullCode = "EPSG:"+code; |
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String cod = ""; |
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if(code.length() < 15 ) { |
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code = code.substring(code.indexOf(":")+1); |
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try {
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//Creamos el objeto que tendra los diferentes parametros de la cadena Wkt
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crsWkt = new CrsWkt(fullCode);
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OGRSpatialReference oSRSSource = new OGRSpatialReference();
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oSRSSource.importFromEPSG(oSRSSource, |
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Integer.parseInt(code));
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//Guardamos la cadena Proj4 devuelva por la OGRSpatialReference
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proj4 = oSRSSource.exportToProj4(oSRSSource); |
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crsProj4 = new CrsProj(proj4);
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setName(fullCode); |
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setAbrev(fullCode); |
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} catch (OGRException e) {
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throw new CrsException(e); |
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} catch (CrsOgrException e) {
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throw new CrsException(e); |
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} catch (NumberFormatException e) { |
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// TODO Auto-generated catch block
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e.printStackTrace(); |
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} catch (CrsGdalException e) {
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// TODO Auto-generated catch block
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e.printStackTrace(); |
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} |
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}else {
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String aux;
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String code2 = ""; |
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for(int i = 0; i < code.length(); i++) { |
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aux = ""+code.charAt(i);
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if(!aux.equals(" ")) { |
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code2+=aux; |
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}else {
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code2 += "";
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} |
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} |
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crsWkt = new CrsWkt(code2);
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try {
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OGRSpatialReference oSRSSource = new OGRSpatialReference();
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oSRSSource.importFromWkt(oSRSSource,code2); |
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proj4 =oSRSSource.exportToProj4(oSRSSource); |
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crsProj4 = new CrsProj(proj4);
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setName(fullCode); |
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//setAbrev(crsWkt.getName());
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setAbrev(crsWkt.getAuthority()[0]+":"+crsWkt.getAuthority()[1]); |
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} catch (OGRException e) {
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throw new CrsException(e); |
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} catch (CrsOgrException e) {
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throw new CrsException(e); |
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} catch (CrsGdalException e) {
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// TODO Auto-generated catch block
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e.printStackTrace(); |
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} |
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} |
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// Asignar el datum y el crs base (en el caso de ser projectado):
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if (!(crsWkt.getSpheroid()[1].equals("")||crsWkt.getSpheroid()[2].equals(""))){ |
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double eSemiMajorAxis = Double.valueOf(crsWkt.getSpheroid()[1]).doubleValue(); |
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double eIFlattening = Double.valueOf(crsWkt.getSpheroid()[2]).doubleValue(); |
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datum = new CRSDatum(eSemiMajorAxis,eIFlattening);
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//crs base (en el caso de ser projectado):
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if(this.isProjected()){ |
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String proj4Base = "+proj=latlong +a=" + crsWkt.getSpheroid()[1] + " +rf=" + crsWkt.getSpheroid()[2] ; |
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crsBase = new CrsProj(proj4Base);
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} |
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} |
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} |
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/**
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*Construye un CRS a partir del c?digo EPSG o de la cadena WKT.
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*
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* @param epsg_cod
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* @param code
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* @throws CrsException
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*/
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public Crs(int epsg_cod, String code) throws CrsException { |
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String fullCode;
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setWKT(code); |
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setCode(epsg_cod); |
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if(code != null || code.charAt(0) == 'E' || code.charAt(0) == 'G' || code.charAt(0) == 'P') |
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fullCode = code; |
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else fullCode = "EPSG:"+code; |
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String cod = ""; |
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if(code.length() < 15 ) { |
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code = code.substring(code.indexOf(":")+1); |
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try {
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//Creamos el objeto que tendra los diferentes parametros de la cadena Wkt
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crsWkt = new CrsWkt(fullCode);
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OGRSpatialReference oSRSSource = new OGRSpatialReference();
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oSRSSource.importFromEPSG(oSRSSource, |
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Integer.parseInt(code));
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//Guardamos la cadena Proj4 devuelva por la OGRSpatialReference
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proj4 = oSRSSource.exportToProj4(oSRSSource); |
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crsProj4 = new CrsProj(proj4);
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setName(fullCode); |
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setAbrev(fullCode); |
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} catch (OGRException e) {
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throw new CrsException(e); |
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} catch (CrsOgrException e) {
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throw new CrsException(e); |
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} catch (NumberFormatException e) { |
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// TODO Auto-generated catch block
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e.printStackTrace(); |
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} catch (CrsGdalException e) {
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// TODO Auto-generated catch block
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e.printStackTrace(); |
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} |
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}else {
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String aux;
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String code2 = ""; |
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for(int i = 0; i < code.length(); i++) { |
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aux = ""+code.charAt(i);
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if(!aux.equals(" ")) { |
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code2+=aux; |
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}else {
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code2 += "";
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} |
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} |
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crsWkt = new CrsWkt(code2);
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/*
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* Arreglo temporal para ver si funcionan de la iau2000 las proyecciones
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* cilindrica equidistante y oblicua cilindrica equidistante
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* que no estan en gdal, por lo que asignaremos directamente su cadena
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* en proj4 para trabajar con ellas
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*/
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if (!crsWkt.getProjection().equals("Equidistant_Cylindrical") && !crsWkt.getProjection().equals("Oblique_Cylindrical_Equal_Area")){ |
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try {
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OGRSpatialReference oSRSSource = new OGRSpatialReference();
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oSRSSource.importFromWkt(oSRSSource,code2); |
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proj4 = oSRSSource.exportToProj4(oSRSSource); |
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crsProj4 = new CrsProj(proj4);
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setName(fullCode); |
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//setAbrev(crsWkt.getName());
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setAbrev(crsWkt.getAuthority()[0]+":"+crsWkt.getAuthority()[1]); |
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} catch (OGRException e) {
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throw new CrsException(e); |
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} catch (CrsOgrException e) {
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throw new CrsException(e); |
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} catch (CrsGdalException e) {
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// TODO Auto-generated catch block
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e.printStackTrace(); |
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} |
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} |
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else if (crsWkt.getProjection().equals("Equidistant_Cylindrical")){ |
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String spheroid1 = crsWkt.getSpheroid()[1]; |
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String spheroid2 = crsWkt.getSpheroid()[2]; |
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String centralMeridian = ""; |
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String falseNorthing = ""; |
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String falseEasting = ""; |
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String standardParallel1 = "0.0"; |
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for (int i=0; i<crsWkt.getParam_name().length;i++){ |
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if (crsWkt.getParam_name()[i].equals("Central_Meridian")) |
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centralMeridian = crsWkt.getParam_value()[i]; |
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if (crsWkt.getParam_name()[i].equals("False_Easting")) |
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falseEasting = crsWkt.getParam_value()[i]; |
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if(crsWkt.getParam_name()[i].equals("False_Northing")) |
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falseNorthing = crsWkt.getParam_value()[i]; |
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if (crsWkt.getParam_name()[i].equals("Standard_Parallel_1")) |
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standardParallel1 = crsWkt.getParam_value()[i]; |
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} |
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if (spheroid2.equals("0.0")){ |
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proj4 = "+proj=eqc +a=" + spheroid1 +
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" +lon_0="+ centralMeridian + " +x_0="+falseEasting+" +y_0="+falseNorthing + |
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" +lat_ts="+standardParallel1;
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} else {
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proj4 = "+proj=eqc +a="+ spheroid1 +" +rf=" + spheroid2 + |
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" +lon_0="+ centralMeridian + " +x_0="+falseEasting+" +y_0="+falseNorthing + |
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" +lat_ts="+standardParallel1;
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} |
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crsProj4 = new CrsProj(proj4);
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setName(fullCode); |
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//setAbrev(crsWkt.getName());
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setAbrev(crsWkt.getAuthority()[0]+":"+crsWkt.getAuthority()[1]); |
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} |
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else if (crsWkt.getProjection().equals("Oblique_Cylindrical_Equal_Area")){ |
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String spheroid1 = crsWkt.getSpheroid()[1]; |
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String spheroid2 = crsWkt.getSpheroid()[2]; |
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String centralMeridian = ""; |
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String falseNorthing = ""; |
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String falseEasting = ""; |
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String standardParallel1 = ""; |
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String standardParallel2 = "0.0"; |
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for (int i=0; i<crsWkt.getParam_name().length;i++){ |
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if (crsWkt.getParam_name()[i].equals("Central_Meridian")) |
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centralMeridian = crsWkt.getParam_value()[i]; |
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if (crsWkt.getParam_name()[i].equals("False_Easting")) |
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falseEasting = crsWkt.getParam_value()[i]; |
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if(crsWkt.getParam_name()[i].equals("False_Northing")) |
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falseNorthing = crsWkt.getParam_value()[i]; |
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if (crsWkt.getParam_name()[i].equals("Standard_Parallel_1")) |
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standardParallel1 = crsWkt.getParam_value()[i]; |
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if (crsWkt.getParam_name()[i].equals("Standard_Parallel_2")) |
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standardParallel2 = crsWkt.getParam_value()[i]; |
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} |
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if (spheroid2.equals("0.0")){ |
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proj4 = "+proj=ocea +a="+ spheroid1 +
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" +lon_0="+ centralMeridian + " +x_0="+falseEasting+" +y_0="+falseNorthing + |
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" +lat_1="+standardParallel1+" +lat_2="+standardParallel2+" +lon_1=long_1" + |
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" +lon_2=long_2 +no_defs";
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} else {
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proj4 = "+proj=ocea +a="+ spheroid1 + " +rf=" + spheroid2 + |
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" +lon_0="+ centralMeridian + " +x_0="+falseEasting+" +y_0="+falseNorthing + |
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" +lat_1="+standardParallel1+" +lat_2="+standardParallel2+" +lon_1=long_1" + |
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" +lon_2=long_2 +no_defs";
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} |
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crsProj4 = new CrsProj(proj4);
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setName(fullCode); |
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//setAbrev(crsWkt.getName());
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setAbrev(crsWkt.getAuthority()[0]+":"+crsWkt.getAuthority()[1]); |
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} |
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} |
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// Asignar el datum:
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if (!(crsWkt.getSpheroid()[1].equals("")||crsWkt.getSpheroid()[2].equals(""))){ |
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double eSemiMajorAxis = Double.valueOf(crsWkt.getSpheroid()[1]).doubleValue(); |
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double eIFlattening = Double.valueOf(crsWkt.getSpheroid()[2]).doubleValue(); |
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datum = new CRSDatum(eSemiMajorAxis,eIFlattening);
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// Crs base (en el caso de ser projectado):
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if(this.isProjected()){ |
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String proj4Base = "+proj=latlong +a=" + crsWkt.getSpheroid()[1] + " +rf=" + crsWkt.getSpheroid()[2] ; |
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crsBase = new CrsProj(proj4Base);
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} |
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} |
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} |
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/**
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* Construye un CRS a partir del c?digo EPSG o de la cadena WKT.
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* En el caso de WKT le a?ade a la cadena proj4 el string params.
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*
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* @param epsg_cod
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* @param code
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* @param params
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* @throws CrsException
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*/
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public Crs(int epsg_cod, String code,String params) throws CrsException { |
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String fullCode;
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setCode(epsg_cod); |
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setWKT(code); |
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if(code.charAt(0) == 'E' || code.charAt(0) == 'G' || code.charAt(0) == 'P') |
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fullCode = code; |
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else fullCode = "EPSG:"+code; |
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String cod = ""; |
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if(code.length() < 15 ) { |
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code = code.substring(code.indexOf(":")+1); |
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try {
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//Creamos el objeto que tendra los diferentes parametros de la cadena Wkt
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crsWkt = new CrsWkt(fullCode);
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OGRSpatialReference oSRSSource = new OGRSpatialReference();
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oSRSSource.importFromEPSG(oSRSSource, |
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Integer.parseInt(code));
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//Guardamos la cadena Proj4 devuelva por la OGRSpatialReference
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proj4 = oSRSSource.exportToProj4(oSRSSource); |
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crsProj4 = new CrsProj(proj4);
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setName(fullCode); |
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setAbrev(fullCode); |
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} catch (OGRException e) {
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throw new CrsException(e); |
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} catch (CrsOgrException e) {
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throw new CrsException(e); |
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} catch (NumberFormatException e) { |
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// TODO Auto-generated catch block
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e.printStackTrace(); |
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} catch (CrsGdalException e) {
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// TODO Auto-generated catch block
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e.printStackTrace(); |
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} |
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}else {
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String aux;
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String code2 = ""; |
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for(int i = 0; i < code.length(); i++) { |
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aux = ""+code.charAt(i);
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if(!aux.equals(" ")) { |
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code2+=aux; |
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}else {
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code2 += "";
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} |
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} |
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crsWkt = new CrsWkt(code2);
|
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try {
|
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OGRSpatialReference oSRSSource = new OGRSpatialReference();
|
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oSRSSource.importFromWkt(oSRSSource,code2); |
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proj4 =oSRSSource.exportToProj4(oSRSSource)+params+" ";
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crsProj4 = new CrsProj(proj4);
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| 409 |
setName(fullCode); |
| 410 |
//setAbrev(crsWkt.getName());
|
| 411 |
setAbrev(crsWkt.getAuthority()[0]+":"+crsWkt.getAuthority()[1]); |
| 412 |
} catch (OGRException e) {
|
| 413 |
throw new CrsException(e); |
| 414 |
} catch (CrsOgrException e) {
|
| 415 |
throw new CrsException(e); |
| 416 |
} catch (CrsGdalException e) {
|
| 417 |
// TODO Auto-generated catch block
|
| 418 |
e.printStackTrace(); |
| 419 |
} |
| 420 |
} |
| 421 |
// Asignar el datum:
|
| 422 |
if (!(crsWkt.getSpheroid()[1].equals("")||crsWkt.getSpheroid()[2].equals(""))){ |
| 423 |
double eSemiMajorAxis = Double.valueOf(crsWkt.getSpheroid()[1]).doubleValue(); |
| 424 |
double eIFlattening = Double.valueOf(crsWkt.getSpheroid()[2]).doubleValue(); |
| 425 |
datum = new CRSDatum(eSemiMajorAxis,eIFlattening);
|
| 426 |
|
| 427 |
// Crs base (en el caso de ser projectado):
|
| 428 |
if(this.isProjected()){ |
| 429 |
String proj4Base = "+proj=latlong +a=" + crsWkt.getSpheroid()[1] + " +rf=" + crsWkt.getSpheroid()[2] ; |
| 430 |
crsBase = new CrsProj(proj4Base);
|
| 431 |
} |
| 432 |
} |
| 433 |
} |
| 434 |
|
| 435 |
/* public Crs(CrsEpsg source) throws CrsException {
|
| 436 |
crsProj4 = source;
|
| 437 |
}*/
|
| 438 |
|
| 439 |
/**
|
| 440 |
* @param code
|
| 441 |
*/
|
| 442 |
public void setTrans(String code) { |
| 443 |
trans = code; |
| 444 |
changeTrans(trans); |
| 445 |
} |
| 446 |
|
| 447 |
/**
|
| 448 |
*
|
| 449 |
* @param code
|
| 450 |
*/
|
| 451 |
public void changeTrans(String code) { |
| 452 |
crsProj4.changeStrCrs(code); |
| 453 |
} |
| 454 |
|
| 455 |
/**
|
| 456 |
*
|
| 457 |
*/
|
| 458 |
public String getAbrev() { |
| 459 |
return abrev;
|
| 460 |
} |
| 461 |
|
| 462 |
/**
|
| 463 |
*
|
| 464 |
* @param code
|
| 465 |
*/
|
| 466 |
protected void setAbrev(String code) { |
| 467 |
abrev = code; |
| 468 |
} |
| 469 |
|
| 470 |
/**
|
| 471 |
*
|
| 472 |
* @param nom
|
| 473 |
*/
|
| 474 |
public void setName(String nom) { |
| 475 |
name = nom; |
| 476 |
} |
| 477 |
|
| 478 |
/**
|
| 479 |
* @return
|
| 480 |
*/
|
| 481 |
public IDatum getDatum() {
|
| 482 |
|
| 483 |
return datum;
|
| 484 |
} |
| 485 |
|
| 486 |
/**
|
| 487 |
* @return
|
| 488 |
*/
|
| 489 |
public CrsWkt getCrsWkt() {
|
| 490 |
return crsWkt;
|
| 491 |
} |
| 492 |
|
| 493 |
/**
|
| 494 |
*
|
| 495 |
* @param wkt
|
| 496 |
*/
|
| 497 |
public void setWKT(String wkt){ |
| 498 |
this.wkt = wkt;
|
| 499 |
} |
| 500 |
|
| 501 |
/**
|
| 502 |
* @return
|
| 503 |
*/
|
| 504 |
public String getWKT(){ |
| 505 |
return this.wkt; |
| 506 |
} |
| 507 |
|
| 508 |
/**
|
| 509 |
*
|
| 510 |
* @param nad
|
| 511 |
*/
|
| 512 |
public void setNadGrid(String nad){ |
| 513 |
this.nad = nad;
|
| 514 |
} |
| 515 |
|
| 516 |
/**
|
| 517 |
* @return
|
| 518 |
*/
|
| 519 |
public String getNadGrid(){ |
| 520 |
return this.nad; |
| 521 |
} |
| 522 |
|
| 523 |
/**
|
| 524 |
*
|
| 525 |
* @return
|
| 526 |
*/
|
| 527 |
protected CrsProj getCrsProj() {
|
| 528 |
return crsProj4;
|
| 529 |
} |
| 530 |
|
| 531 |
/**
|
| 532 |
* @param x
|
| 533 |
* @param y
|
| 534 |
* @return
|
| 535 |
*/
|
| 536 |
public Point2D createPoint(double x, double y) { |
| 537 |
return new Point2D.Double(x,y); |
| 538 |
} |
| 539 |
|
| 540 |
/**
|
| 541 |
* @param g
|
| 542 |
* @param vp
|
| 543 |
*/
|
| 544 |
public void drawGrid(Graphics2D g, ViewPortData vp) { |
| 545 |
// TODO Auto-generated method stub
|
| 546 |
|
| 547 |
} |
| 548 |
|
| 549 |
/**
|
| 550 |
* @param c
|
| 551 |
*/
|
| 552 |
public void setGridColor(Color c) { |
| 553 |
gridColor = c; |
| 554 |
} |
| 555 |
|
| 556 |
/**
|
| 557 |
* @return
|
| 558 |
*/
|
| 559 |
public Color getGridColor() { |
| 560 |
return gridColor;
|
| 561 |
} |
| 562 |
|
| 563 |
/**
|
| 564 |
* @param dest
|
| 565 |
* @return
|
| 566 |
*/
|
| 567 |
public ICoordTrans getCT(IProjection dest) {
|
| 568 |
COperation operation = null;
|
| 569 |
Crs crsDest = (Crs)dest; |
| 570 |
try {
|
| 571 |
operation = new COperation(this, (ICrs)dest); |
| 572 |
} catch (CrsException e) {
|
| 573 |
// TODO Auto-generated catch block
|
| 574 |
e.printStackTrace(); |
| 575 |
} |
| 576 |
|
| 577 |
if (!getNadGrid().equals("")){ |
| 578 |
if (isTargetNad())
|
| 579 |
operation.setNadCrsProj(new CrsProj(crsDest.getProj4()+getNadGrid()), true); |
| 580 |
else
|
| 581 |
operation.setNadCrsProj(new CrsProj(getProj4()+getNadGrid()), false); |
| 582 |
|
| 583 |
return operation;
|
| 584 |
} |
| 585 |
|
| 586 |
return operation;
|
| 587 |
} |
| 588 |
|
| 589 |
/**
|
| 590 |
* @param pt
|
| 591 |
* @return
|
| 592 |
*/
|
| 593 |
public Point2D toGeo(Point2D pt) { |
| 594 |
if (isProjected()){
|
| 595 |
double x[] = {pt.getX()}; |
| 596 |
double y[] = {pt.getY()}; |
| 597 |
double z[] = {0D}; |
| 598 |
try {
|
| 599 |
JNIBaseCrs.operate( x , y, z, |
| 600 |
crsProj4,crsBase); |
| 601 |
} catch (OperationCrsException e) {
|
| 602 |
// TODO Auto-generated catch block
|
| 603 |
e.printStackTrace(); |
| 604 |
} catch (CrsProjException e) {
|
| 605 |
// TODO Auto-generated catch block
|
| 606 |
e.printStackTrace(); |
| 607 |
} |
| 608 |
return new Point2D.Double(x[0],y[0]); |
| 609 |
} |
| 610 |
else
|
| 611 |
return pt;
|
| 612 |
} |
| 613 |
|
| 614 |
/**
|
| 615 |
* @param gPt
|
| 616 |
* @param mPt
|
| 617 |
* @return
|
| 618 |
*/
|
| 619 |
public Point2D fromGeo(Point2D gPt, Point2D mPt) { |
| 620 |
// TODO Auto-generated method stub
|
| 621 |
return null; |
| 622 |
} |
| 623 |
|
| 624 |
/**
|
| 625 |
* @return
|
| 626 |
*/
|
| 627 |
public boolean isProjected() { |
| 628 |
return !crsProj4.isLatlong();
|
| 629 |
} |
| 630 |
|
| 631 |
/**
|
| 632 |
* @param minX
|
| 633 |
* @param maxX
|
| 634 |
* @param width
|
| 635 |
* @param dpi
|
| 636 |
* @return
|
| 637 |
*/
|
| 638 |
public double getScale(double minX, double maxX, double width, double dpi) { |
| 639 |
double scale = 0D; |
| 640 |
if (!isProjected()) { // Es geogr?fico; calcula la escala. |
| 641 |
scale = ((maxX - minX) * // grados
|
| 642 |
|
| 643 |
// 1852.0 metros x minuto de meridiano
|
| 644 |
(dpi / 2.54 * 100.0 * 1852.0 * 60.0)) / // px / metro |
| 645 |
width; // pixels
|
| 646 |
} |
| 647 |
else{
|
| 648 |
scale = ((maxX - minX) * // metros
|
| 649 |
(dpi / 2.54 * 100.0)) / // px / metro |
| 650 |
width; // pixels
|
| 651 |
} |
| 652 |
return scale;
|
| 653 |
} |
| 654 |
|
| 655 |
/**
|
| 656 |
*
|
| 657 |
* @param epsg_cod
|
| 658 |
*/
|
| 659 |
public void setCode(int epsg_cod){ |
| 660 |
epsg_code = epsg_cod; |
| 661 |
} |
| 662 |
|
| 663 |
/**
|
| 664 |
* @return
|
| 665 |
*/
|
| 666 |
public int getCode() { |
| 667 |
// TODO Auto-generated method stub
|
| 668 |
return epsg_code;
|
| 669 |
} |
| 670 |
|
| 671 |
/**
|
| 672 |
*
|
| 673 |
*/
|
| 674 |
public Rectangle2D getExtent(Rectangle2D extent, double scale, double wImage, double hImage, double changeUnits, double dpi) { |
| 675 |
// TODO Auto-generated method stub
|
| 676 |
return null; |
| 677 |
} |
| 678 |
|
| 679 |
/**
|
| 680 |
* @return
|
| 681 |
*/
|
| 682 |
public boolean isTargetNad() { |
| 683 |
return targetNad;
|
| 684 |
} |
| 685 |
|
| 686 |
/**
|
| 687 |
* @param targetNad
|
| 688 |
*/
|
| 689 |
public void setNadInTarget(boolean targetNad) { |
| 690 |
this.targetNad = targetNad;
|
| 691 |
} |
| 692 |
|
| 693 |
/**
|
| 694 |
*
|
| 695 |
* @return
|
| 696 |
*/
|
| 697 |
public String getProj4() { |
| 698 |
return proj4;
|
| 699 |
} |
| 700 |
|
| 701 |
} |