svn-gvsig-desktop / trunk / libraries / libJCRS / src / org / gvsig / crs / Crs.java @ 8426
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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.gvsig.crs.ogr.CrsOgr; |
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import org.gvsig.crs.ogr.CrsOgrException; |
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import org.gvsig.crs.ogr.OGRException; |
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import org.gvsig.crs.ogr.OGRSpatialReference; |
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import org.gvsig.crs.ogr.crsgdalException; |
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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.OperationCrs; |
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import org.gvsig.crs.proj.OperationCrsException; |
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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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/**
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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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CrsOgr.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 = CrsOgr.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 (crsgdalException 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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} |
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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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CrsOgr.importFromWkt(oSRSSource,code2); |
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proj4 =CrsOgr.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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} catch (OGRException e) {
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throw new CrsException(e); |
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} catch (crsgdalException 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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} |
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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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CrsOgr.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 = CrsOgr.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 (crsgdalException 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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} |
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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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CrsOgr.importFromWkt(oSRSSource,code2); |
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proj4 = CrsOgr.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 (crsgdalException 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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} |
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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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CrsOgr.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 = CrsOgr.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 (crsgdalException 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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} |
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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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CrsOgr.importFromWkt(oSRSSource,code2); |
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proj4 =CrsOgr.exportToProj4(oSRSSource)+params+" ";
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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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} catch (OGRException e) {
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throw new CrsException(e); |
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} catch (crsgdalException 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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} |
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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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/* public Crs(CrsEpsg source) throws CrsException {
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crsProj4 = source;
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}*/
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public void setTrans(String code) { |
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trans = code; |
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changeTrans(trans); |
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} |
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public void changeTrans(String code) { |
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crsProj4.changeStrCrs(code); |
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} |
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public String getAbrev() { |
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return abrev;
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} |
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protected void setAbrev(String code) { |
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abrev = code; |
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} |
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public void setName(String nom) { |
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name = nom; |
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} |
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public IDatum getDatum() {
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/*CSDatum datum = new CSDatum();
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try {
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datum.fromWKT(getWKT());
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} catch (FactoryException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}*/
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return datum;
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} |
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public CrsWkt getCrsWkt() {
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return crsWkt;
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} |
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public void setWKT(String wkt){ |
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this.wkt = wkt;
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} |
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public String getWKT(){ |
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return this.wkt; |
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} |
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public void setNadTarget(String nad){ |
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this.nad = nad;
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} |
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public String getNadTarget(){ |
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return this.nad; |
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} |
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public ICOperation getCOp(ICrs target) throws CrsException { |
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if (!this.getNadTarget().equals("")) { |
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ICrs crs = new Crs(target.getCode(), target.getWKT(), this.getNadTarget()); |
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return new COperation(this, crs); |
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} |
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else return new COperation(this, target); |
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} |
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protected CrsProj getCrsEpsg() {
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return crsProj4;
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} |
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public Point2D createPoint(double x, double y) { |
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return new Point2D.Double(x,y); |
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} |
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public void drawGrid(Graphics2D g, ViewPortData vp) { |
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// TODO Auto-generated method stub
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} |
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public void setGridColor(Color c) { |
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gridColor = c; |
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} |
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public Color getGridColor() { |
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return gridColor;
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} |
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public ICoordTrans getCT(IProjection dest) {
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ICrs crs = (ICrs) dest; |
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try {
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if (!this.getNadTarget().equals("")) { |
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crs = new Crs(crs.getCode(), crs.getWKT(), this.getNadTarget()); |
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return new COperation(this, crs); |
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} |
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else return new COperation(this, crs); |
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} catch (CrsException e) {
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// TODO Auto-generated catch block
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e.printStackTrace(); |
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} |
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return null; |
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} |
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public Point2D toGeo(Point2D pt) { |
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if (isProjected()){
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double x[] = {pt.getX()}; |
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double y[] = {pt.getY()}; |
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double z[] = {0D}; |
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try {
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OperationCrs.operate( x , y, z, |
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crsProj4,crsBase); |
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} catch (OperationCrsException e) {
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// TODO Auto-generated catch block
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e.printStackTrace(); |
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} catch (CrsProjException e) {
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// TODO Auto-generated catch block
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e.printStackTrace(); |
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} |
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return new Point2D.Double(x[0],y[0]); |
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} |
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else
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return pt;
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} |
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public Point2D fromGeo(Point2D gPt, Point2D mPt) { |
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// TODO Auto-generated method stub
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return null; |
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} |
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public boolean isProjected() { |
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return !crsProj4.isLatlong();
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} |
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public double getScale(double minX, double maxX, double width, double dpi) { |
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double scale = 0D; |
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if (!isProjected()) { // Es geogr?fico; calcula la escala. |
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scale = ((maxX - minX) * // grados
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// 1852.0 metros x minuto de meridiano
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(dpi / 2.54 * 100.0 * 1852.0 * 60.0)) / // px / metro |
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width; // pixels
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} |
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else{
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scale = ((maxX - minX) * // metros
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(dpi / 2.54 * 100.0)) / // px / metro |
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width; // pixels
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} |
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return scale;
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} |
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public void setCode(int epsg_cod){ |
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epsg_code = epsg_cod; |
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} |
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public int getCode() { |
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// TODO Auto-generated method stub
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return epsg_code;
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} |
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public Rectangle2D getExtent(Rectangle2D extent, double scale, double wImage, double hImage, double changeUnits, double dpi) { |
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// TODO Auto-generated method stub
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return null; |
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} |
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|
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} |