Revision 4182 org.gvsig.raster.gdal/trunk/org.gvsig.raster.gdal/org.gvsig.raster.gdal.io/src/main/java/org/gvsig/raster/gdal/util/DefaultCRSUtils.java
| DefaultCRSUtils.java | ||
|---|---|---|
| 23 | 23 |
|
| 24 | 24 |
import org.cresques.cts.ICRSFactory; |
| 25 | 25 |
import org.cresques.cts.IProjection; |
| 26 |
import org.gdal.osr.SpatialReference; |
|
| 27 |
|
|
| 26 | 28 |
import org.gvsig.fmap.crs.CRSFactory; |
| 27 | 29 |
import org.gvsig.fmap.dal.coverage.util.CRSUtils; |
| 28 |
import org.gvsig.jogr.CrsGdalException; |
|
| 29 |
import org.gvsig.jogr.OGRException; |
|
| 30 |
import org.gvsig.jogr.OGRSpatialReference; |
|
| 31 |
import org.slf4j.LoggerFactory; |
|
| 30 |
|
|
| 32 | 31 |
/** |
| 33 | 32 |
* Esta clase se encarga de hacer la conversion entre Wkt e IProjection. |
| 34 | 33 |
* |
| 35 |
* El uso se hace mediante dos llamadas estaticas que son: convertIProjectionToWkt y |
|
| 34 |
* El uso se hace mediante dos llamadas estaticas que son: |
|
| 35 |
* convertIProjectionToWkt y |
|
| 36 | 36 |
* convertWktToIProjection. |
| 37 | 37 |
* |
| 38 |
* Antes de usarlos, hay que saber si tenemos acceso a gvSIG e intentar coger el factory desde all?. |
|
| 39 |
* Ya que su uso consume tiempo y espacio de memoria y es preferible reaprovechar ese objeto ya |
|
| 38 |
* Antes de usarlos, hay que saber si tenemos acceso a gvSIG e intentar coger el |
|
| 39 |
* factory desde all?. |
|
| 40 |
* Ya que su uso consume tiempo y espacio de memoria y es preferible |
|
| 41 |
* reaprovechar ese objeto ya |
|
| 40 | 42 |
* creado. Esto se hace con setCRSFactory. |
| 41 | 43 |
* |
| 42 |
* En caso de no asignarse el ya existente, el crear? uno interno y lo dejara en una variable estatica. |
|
| 44 |
* En caso de no asignarse el ya existente, el crear? uno interno y lo dejara en |
|
| 45 |
* una variable estatica. |
|
| 43 | 46 |
* |
| 44 | 47 |
* @version 11/07/2008 |
| 45 | 48 |
* @author BorSanZa - Borja S?nchez Zamorano (borja.sanchez@iver.es) |
| 46 | 49 |
*/ |
| 47 | 50 |
public class DefaultCRSUtils implements CRSUtils {
|
| 48 |
private ICRSFactory factory = null; |
|
| 49 | 51 |
|
| 50 |
public void setCRSFactory(ICRSFactory factory) {
|
|
| 51 |
this.factory = factory; |
|
| 52 |
} |
|
| 52 |
private ICRSFactory factory = null; |
|
| 53 | 53 |
|
| 54 |
/** |
|
| 55 |
* Devuelve el CRSFactory asignado desde fuera o creado desde dentro, todo depende de como se haya |
|
| 56 |
* usado. |
|
| 57 |
* |
|
| 58 |
* @param code |
|
| 59 |
* @return |
|
| 60 |
*/ |
|
| 61 |
private IProjection getCRS(String code) {
|
|
| 62 |
if (factory == null) |
|
| 63 |
factory = CRSFactory.getCRSFactory(); //new ProjectionPool(); |
|
| 64 |
return factory.get(code); |
|
| 65 |
} |
|
| 54 |
public void setCRSFactory(ICRSFactory factory) {
|
|
| 55 |
this.factory = factory; |
|
| 56 |
} |
|
| 66 | 57 |
|
| 67 |
public IProjection convertWktToIProjection(String wkt) {
|
|
| 68 |
if (wkt == null || wkt.equals(""))
|
|
| 69 |
return null; |
|
| 58 |
/** |
|
| 59 |
* Devuelve el CRSFactory asignado desde fuera o creado desde dentro, todo |
|
| 60 |
* depende de como se haya |
|
| 61 |
* usado. |
|
| 62 |
* |
|
| 63 |
* @param code |
|
| 64 |
* @return |
|
| 65 |
*/ |
|
| 66 |
private IProjection getCRS(String code) {
|
|
| 67 |
if (factory == null) |
|
| 68 |
factory = CRSFactory.getCRSFactory(); // new ProjectionPool(); |
|
| 69 |
return factory.get(code); |
|
| 70 |
} |
|
| 70 | 71 |
|
| 71 |
String code = null; |
|
| 72 |
String name = null; |
|
| 72 |
public IProjection convertWktToIProjection(String wkt) {
|
|
| 73 |
if (wkt == null || wkt.equals(""))
|
|
| 74 |
return null; |
|
| 73 | 75 |
|
| 74 |
OGRSpatialReference oSRSSource = new OGRSpatialReference(); |
|
| 75 |
try {
|
|
| 76 |
OGRSpatialReference.importFromWkt(oSRSSource, wkt); |
|
| 76 |
String code = null; |
|
| 77 |
String name = null; |
|
| 77 | 78 |
|
| 78 |
code = oSRSSource.getAuthorityCode("PROJCS");
|
|
| 79 |
if (code == null) |
|
| 80 |
code = oSRSSource.getAuthorityCode("GEOGCS");
|
|
| 81 |
name = oSRSSource.getAuthorityName("PROJCS");
|
|
| 82 |
if (name == null) |
|
| 83 |
name = oSRSSource.getAuthorityName("GEOGCS");
|
|
| 84 |
try {
|
|
| 85 |
if(name != null && code != null) |
|
| 86 |
return getCRS(name + ":" + code); |
|
| 87 |
} catch (NumberFormatException ex) {
|
|
| 88 |
return null; |
|
| 89 |
} |
|
| 90 |
} catch (OGRException e) {
|
|
| 91 |
LoggerFactory.getLogger(getClass().getName()).debug("Problemas obteniendo el c?digo EPSG", e);
|
|
| 92 |
} catch (CrsGdalException e) {
|
|
| 93 |
LoggerFactory.getLogger(getClass().getName()).debug("Problemas obteniendo el c?digo EPSG", e);
|
|
| 94 |
} |
|
| 79 |
SpatialReference oSRSSource = new SpatialReference(); |
|
| 95 | 80 |
|
| 96 |
return null; |
|
| 97 |
} |
|
| 81 |
oSRSSource.ImportFromWkt(wkt); |
|
| 98 | 82 |
|
| 99 |
public String convertIProjectionToWkt(IProjection projection) {
|
|
| 100 |
if(projection == null) |
|
| 101 |
return null; |
|
| 102 |
OGRSpatialReference oSRSSource = new OGRSpatialReference(); |
|
| 83 |
code = oSRSSource.GetAuthorityCode("PROJCS");
|
|
| 84 |
if (code == null) |
|
| 85 |
code = oSRSSource.GetAuthorityCode("GEOGCS");
|
|
| 86 |
name = oSRSSource.GetAuthorityName("PROJCS");
|
|
| 87 |
if (name == null) |
|
| 88 |
name = oSRSSource.GetAuthorityName("GEOGCS");
|
|
| 89 |
try {
|
|
| 90 |
if (name != null && code != null) |
|
| 91 |
return getCRS(name + ":" + code); |
|
| 92 |
} catch (NumberFormatException ex) {
|
|
| 93 |
return null; |
|
| 94 |
} |
|
| 103 | 95 |
|
| 104 |
String code = projection.getAbrev(); |
|
| 105 |
String name = code.substring(0, code.indexOf(":"));
|
|
| 106 |
code = code.substring(code.indexOf(":") + 1);
|
|
| 96 |
return null; |
|
| 97 |
} |
|
| 107 | 98 |
|
| 108 |
try {
|
|
| 109 |
do
|
|
| 110 |
if (name.equals("EPSG")) {
|
|
| 111 |
OGRSpatialReference.importFromEPSG(oSRSSource, Integer.parseInt(code));
|
|
| 112 |
break; |
|
| 113 |
}
|
|
| 114 |
while (false);
|
|
| 115 |
return OGRSpatialReference.exportToWkt(oSRSSource);
|
|
| 116 |
} catch (CrsGdalException e) {
|
|
| 117 |
LoggerFactory.getLogger(getClass().getName()).debug("Problemas obteniendo el c?digo WKT", e);
|
|
| 118 |
} catch (NumberFormatException e) {
|
|
| 119 |
LoggerFactory.getLogger(getClass().getName()).debug("Problemas obteniendo el c?digo WKT", e);
|
|
| 120 |
} catch (OGRException e) {
|
|
| 121 |
LoggerFactory.getLogger(getClass().getName()).debug("Problemas obteniendo el c?digo WKT", e);
|
|
| 122 |
}
|
|
| 123 |
return null;
|
|
| 124 |
}
|
|
| 99 |
public String convertIProjectionToWkt(IProjection projection) {
|
|
| 100 |
if (projection == null)
|
|
| 101 |
return null;
|
|
| 102 |
SpatialReference oSRSSource = new SpatialReference();
|
|
| 103 |
|
|
| 104 |
String code = projection.getAbrev();
|
|
| 105 |
String name = code.substring(0, code.indexOf(":"));
|
|
| 106 |
code = code.substring(code.indexOf(":") + 1);
|
|
| 107 |
|
|
| 108 |
do
|
|
| 109 |
if (name.equals("EPSG")) {
|
|
| 110 |
oSRSSource.ImportFromEPSG(Integer.parseInt(code));
|
|
| 111 |
break;
|
|
| 112 |
}
|
|
| 113 |
while (false);
|
|
| 114 |
return oSRSSource.ExportToWkt();
|
|
| 115 |
}
|
|
| 125 | 116 |
} |
Also available in: Unified diff