/*---------------- FILE HEADER ------------------------------------------
This file is part of deegree.
Copyright (C) 2001-2006 by:
EXSE, Department of Geography, University of Bonn
http://www.giub.uni-bonn.de/deegree/
lat/lon GmbH
http://www.lat-lon.de
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Contact:
Andreas Poth
lat/lon GmbH
Aennchenstr. 19
53177 Bonn
Germany
E-Mail: poth@lat-lon.de
Prof. Dr. Klaus Greve
Department of Geography
University of Bonn
Meckenheimer Allee 166
53115 Bonn
Germany
E-Mail: greve@giub.uni-bonn.de
---------------------------------------------------------------------------*/
package org.deegree.graphics;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.net.URL;
import org.deegree.framework.log.ILogger;
import org.deegree.framework.log.LoggerFactory;
import org.deegree.framework.util.ImageUtils;
import org.deegree.model.coverage.grid.ImageGridCoverage;
import org.deegree.model.crs.CoordinateSystem;
import org.deegree.model.spatialschema.Envelope;
import org.deegree.ogcwebservices.InvalidParameterValueException;
import org.opengis.coverage.grid.GridCoverage;
/**
*
*
*
* @version $Revision: 1.3 $
* @author <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
* @author last edited by: $Author: taddei $
*
* @version 1.0. $Revision: 1.3 $, $Date: 2006/09/07 13:26:20 $
*
* @since 2.0
*/
public class OWSRasterLayer extends AbstractLayer {
private ILogger LOG = LoggerFactory.getLogger( OWSRasterLayer.class );
private URL baseURL;
private Envelope envelope;
/**
*
* @param name
* @param resource
* @param coverageOffering
* @throws Exception
*/
public OWSRasterLayer( String name, URL baseURL ) throws Exception {
super( name );
this.baseURL = baseURL;
}
/**
*
*/
public void setCoordinatesSystem( CoordinateSystem crs )
throws Exception {
// not supported yet
}
@Override
public Envelope getBoundingBox() {
return envelope;
}
/**
*
* @param envelope
* @param w width of image
* @param w height of image
* @return
* @throws IOException
* @throws InvalidParameterValueException
*/
public GridCoverage getRaster( Envelope envelope, double w, double h ) throws IOException {
this.envelope = envelope;
StringBuffer sb = new StringBuffer( 150 );
sb.append( baseURL );
appendBoxParamtersToBuffer( sb, envelope, (int)w, (int)h );
URL u = new URL( sb.toString() );
GridCoverage gc = null;
try {
BufferedImage img = ImageUtils.loadImage( u );
gc = new ImageGridCoverage( null, envelope, img );
} catch ( Exception e ) {
LOG.logDebug( "Error getting raster data: " + e.getMessage() );
}
return gc;
}
private void appendBoxParamtersToBuffer( StringBuffer sb , Envelope env, int w, int h ){
sb.append( "&BBOX=" )
.append( env.getMin().getX() ).append( "," )
.append( env.getMin().getY() ).append( "," )
.append( env.getMax().getX() ).append( "," )
.append( env.getMax().getY() )
.append( "&WIDTH=" ).append( w )
.append( "&HEIGHT=" ).append( h );
}
}
/* ********************************************************************
Changes to this class. What the people have been up to:
$Log: OWSRasterLayer.java,v $
Revision 1.3 2006/09/07 13:26:20 taddei
handling/ignoring exceptions in OWSRasterlayer; and using img dimension
Revision 1.2 2006/08/25 14:11:21 taddei
implemented getRaster
Revision 1.1 2006/08/24 09:57:58 poth
initial check in
********************************************************************** */