/*---------------- 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
53115 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.displayelements;
import java.awt.Graphics;
import java.awt.Image;
import java.io.Serializable;
import org.deegree.framework.log.ILogger;
import org.deegree.framework.log.LoggerFactory;
import org.deegree.graphics.sld.RasterSymbolizer;
import org.deegree.graphics.transformation.GeoTransform;
import org.deegree.model.coverage.grid.ImageGridCoverage;
import org.opengis.coverage.grid.GridCoverage;
import org.opengis.pt.PT_Envelope;
/**
*
*
*
* @version $Revision: 1.9 $
* @author <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
* @author last edited by: $Author: poth $
*
* @version 1.0. $Revision: 1.9 $, $Date: 2006/08/06 20:13:30 $
*
* @since 2.0
*/
public class RasterDisplayElement extends AbstractDisplayElement
implements Serializable {
private static ILogger LOG = LoggerFactory.getLogger( RasterDisplayElement.class );
private RasterSymbolizer symbolizer = null;
private GridCoverage gc = null;
/**
* Creates a new RasterDisplayElement_Impl object.
*
* @param gc
* raster
*/
RasterDisplayElement(GridCoverage gc) {
setRaster(gc);
symbolizer = new RasterSymbolizer();
}
/**
* Creates a new RasterDisplayElement_Impl object.
*
* @param gc
* raster
* @param symbolizer
*/
RasterDisplayElement(GridCoverage gc, RasterSymbolizer symbolizer) {
setRaster(gc);
this.symbolizer = symbolizer;
}
/**
* renders the DisplayElement to the submitted graphic context
*
*/
public void paint(Graphics g, GeoTransform projection, double scale) {
try {
PT_Envelope env = gc.getEnvelope();
int minx = (int) (projection.getDestX(env.minCP.ord[0]) + 0.5);
int maxy = (int) (projection.getDestY(env.minCP.ord[1]) + 0.5);
int maxx = (int) (projection.getDestX(env.maxCP.ord[0]) + 0.5);
int miny = (int) (projection.getDestY(env.maxCP.ord[1]) + 0.5);
if (gc instanceof ImageGridCoverage) {
Image image = ((ImageGridCoverage) gc).getAsImage(-1,-1);
g.drawImage(image, minx, miny, maxx - minx, maxy - miny, null);
} else {
//TODO
// handle other grid coverages
}
} catch (Exception e) {
LOG.logError( e.getMessage(), e );
throw new RuntimeException( e.getMessage(), e );
}
}
/**
* returns the content of the <tt>RasterDisplayElement</tt>
* @return
*/
public GridCoverage getRaster() {
return gc;
}
/**
* sets the grid coverage that represents the content of the
* <tt>RasterDisplayElement</tt>
*
* @param gc
*
*/
public void setRaster(GridCoverage gc) {
this.gc = gc;
}
}
/* ********************************************************************
Changes to this class. What the people have been up to:
$Log: RasterDisplayElement.java,v $
Revision 1.9 2006/08/06 20:13:30 poth
logError statement added in paint method
Revision 1.8 2006/06/28 20:20:15 poth
some code clean ups
Revision 1.7 2006/05/31 12:05:57 poth
useless code removed
********************************************************************** */