root / trunk / libraries / libjni-gdal / src / es / gva / cit / jogr / OGRSpatialReference.java @ 7765
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/**********************************************************************
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* $Id: OGRSpatialReference.java 7765 2006-10-03 07:05:18Z nacho $
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*
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* Name: OGRSpatialReference.java
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* Project: JGDAL. Interface java to gdal (Frank Warmerdam).
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* Purpose:
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* Author: Nacho Brodin, brodin_ign@gva.es
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*
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**********************************************************************/
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/*Copyright (C) 2004 Nacho Brodin <brodin_ign@gva.es>
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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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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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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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package es.gva.cit.jogr; |
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import java.io.*; |
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import java.util.Date; |
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//import es.gva.cit.wrappergdal.OGRException;
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/**
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* Representa un sistema de referencia espacial OpenGIS.
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*
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* @author Nacho Brodin <brodin_ign@gva.es>.<BR> Equipo de desarrollo gvSIG.<BR> http://www.gvsig.gva.es
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* @version 0.0
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* @link http://www.gvsig.gva.es
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*/
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public class OGRSpatialReference extends JNIBase{ |
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private native int setUTMNat(long cPtr, int zona, int norte_sur); |
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private native int setWellKnownGeogCSNat(long cPtr, String cs); |
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private native long OGRSpatialReferenceNat(); |
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private native String exportToWktNat(long cPtr); |
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private native void OSRDestroySpatialReferenceNat(long cPtr); |
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private native int getUTMZoneNat(long cPtr); |
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private native int getHemisphereNat(long cPtr); |
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private native int setFromUserInputNat(long cPtr, String a_srs); |
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/**
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*Constructor a partir de la direcci?n de memoria
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*/
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public OGRSpatialReference(long cPtr){ |
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this.cPtr=cPtr;
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} |
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/**
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* Constructor generico
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*/
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public OGRSpatialReference(){
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cPtr = OGRSpatialReferenceNat(); |
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} |
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/**
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* Escribe la zona UTM pasada por par?metro
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* @param zona Zona UTM
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* @param norte_sur TRUE hemisferio norte y FALSE hemisferio sur
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* @throws OGRException
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*/
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public void setUTM(int zona, boolean norte_sur)throws OGRException{ |
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if(cPtr <= 0) |
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throw new OGRException("Error en setUTM(). La llamada de creaci?n de objeto no tuvo exito"); |
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int ns=-1; |
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if(norte_sur)ns=1; |
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else ns=0; |
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int res = setUTMNat(cPtr, zona, ns);
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if(res<0) |
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throw new OGRException("Error en setUTM(). No se ha podido asignar la zona especificada."); |
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} |
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/**
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* Lee la zona UTM
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* @return Zona UTM
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* @throws OGRException
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*/
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public int getUTMZone()throws OGRException{ |
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if(cPtr <= 0) |
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throw new OGRException("Error en getUTMZone(). La llamada de creaci?n de objeto no tuvo exito"); |
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int res = getUTMZoneNat(cPtr);
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if(res<0) |
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throw new OGRException("Error en getUTMZone(). Valor de zona devuelto erroneo."); |
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return res;
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} |
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/**
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* Obtiene el hemisferio
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* @return TRUE hemisferio norte y FALSE hemisferio sur
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* @throws OGRException
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*/
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public boolean getHemisphere()throws OGRException{ |
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if(cPtr <= 0) |
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throw new OGRException("Error en getHemisphere(). La llamada de creaci?n de objeto no tuvo exito"); |
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int hemis = getHemisphereNat(cPtr);
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if(hemis<0) |
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throw new OGRException("Error en getHemisphere(). Valor de hemisferio devuelto erroneo."); |
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if(hemis==1)return true; |
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else return false; |
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} |
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/**
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*Asigna las coordenadas geogr?ficas
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*@param cs Coordenadas geograficas soportadas:<BR>
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*<UL>
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*<LI>WGS84</LI>
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*<LI>WGS72</LI>
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*<LI>NAD27</LI>
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*<LI>NAD83</LI>
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*<LI>EPSG:n</LI>
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*</UL>
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*@throws OGRException
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*/
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public void setWellKnownGeogCS( String cs)throws OGRException{ |
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if(cPtr <= 0) |
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throw new OGRException("Error en setWellKnownGeogCS(). La llamada de creaci?n de objeto no tuvo exito"); |
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int res = setWellKnownGeogCSNat(cPtr, cs);
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if(res<0) |
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throw new OGRException("Error en setWellKnownGeoCS(). No se ha podido asignar el sistema de coordenadas especificado."); |
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} |
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/**
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* Devuelve la codificaci?n WKT
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* @return Codificaci?n WKT
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* @throws OGRException
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*/
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public String exportToWkt()throws OGRException{ |
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if(cPtr <= 0) |
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throw new OGRException("Error en exportToWkt(). La llamada de creaci?n de objeto no tuvo exito"); |
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String wkt = exportToWktNat(cPtr);
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if(wkt==null) |
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throw new OGRException("Error en exportToWkt(). No se ha podido obtener la proyecci?n."); |
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return wkt;
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} |
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/**
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* @throws OGRException
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* @param a_srs
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*/
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public void setFromUserInput(String a_srs)throws OGRException{ |
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if(cPtr <= 0) |
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throw new OGRException("Error en setFromUserInput(). La llamada de creaci?n de objeto no tuvo exito"); |
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int ogrerr = setFromUserInputNat(cPtr,a_srs);
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lanzarExcepcion(ogrerr,"Error en setFromUserInput().");
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} |
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/**
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* Destructor
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*/
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protected void finalize(){ |
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if(cPtr > 0) |
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OSRDestroySpatialReferenceNat(cPtr); |
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} |
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} |