001 //$HeadURL: svn+ssh://jwilden@svn.wald.intevation.org/deegree/base/branches/2.5_testing/src/org/deegree/crs/transformations/coordinate/DirectTransform.java $
002 /*----------------------------------------------------------------------------
003 This file is part of deegree, http://deegree.org/
004 Copyright (C) 2001-2009 by:
005 Department of Geography, University of Bonn
006 and
007 lat/lon GmbH
008
009 This library is free software; you can redistribute it and/or modify it under
010 the terms of the GNU Lesser General Public License as published by the Free
011 Software Foundation; either version 2.1 of the License, or (at your option)
012 any later version.
013 This library is distributed in the hope that it will be useful, but WITHOUT
014 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
015 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
016 details.
017 You should have received a copy of the GNU Lesser General Public License
018 along with this library; if not, write to the Free Software Foundation, Inc.,
019 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
020
021 Contact information:
022
023 lat/lon GmbH
024 Aennchenstr. 19, 53177 Bonn
025 Germany
026 http://lat-lon.de/
027
028 Department of Geography, University of Bonn
029 Prof. Dr. Klaus Greve
030 Postfach 1147, 53001 Bonn
031 Germany
032 http://www.geographie.uni-bonn.de/deegree/
033
034 e-mail: info@deegree.org
035 ----------------------------------------------------------------------------*/
036
037 package org.deegree.crs.transformations.coordinate;
038
039 import java.util.List;
040
041 import javax.vecmath.Point3d;
042
043 import org.deegree.crs.Identifiable;
044 import org.deegree.crs.coordinatesystems.CoordinateSystem;
045 import org.deegree.crs.exceptions.TransformationException;
046 import org.deegree.crs.transformations.polynomial.PolynomialTransformation;
047 import org.deegree.framework.log.ILogger;
048 import org.deegree.framework.log.LoggerFactory;
049
050 /**
051 * The <code>DirectTransform</code> class wraps the access to a polynomial transformation, by calling it's
052 * applyPolynomial method.
053 *
054 * @author <a href="mailto:bezema@lat-lon.de">Rutger Bezema</a>
055 *
056 * @author last edited by: $Author: mschneider $
057 *
058 * @version $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18 Jun 2009) $
059 *
060 */
061
062 public class DirectTransform extends CRSTransformation {
063
064 private static final long serialVersionUID = 5291664657849478137L;
065
066 private static ILogger LOG = LoggerFactory.getLogger( DirectTransform.class );
067
068 private final PolynomialTransformation transformation;
069
070 /**
071 * @param transformation
072 * to apply
073 * @param sourceCRS
074 * in which the points will be defined.
075 * @param id
076 * an identifiable instance containing information about this transformation
077 */
078 public DirectTransform( PolynomialTransformation transformation, CoordinateSystem sourceCRS, Identifiable id ) {
079 super( sourceCRS, transformation.getTargetCRS(), id );
080 this.transformation = transformation;
081 }
082
083 /**
084 * @param transformation
085 * to apply
086 * @param sourceCRS
087 * in which the points will be defined.
088 */
089 public DirectTransform( PolynomialTransformation transformation, CoordinateSystem sourceCRS ) {
090 this(
091 transformation,
092 sourceCRS,
093 new Identifiable( createFromTo( sourceCRS.getIdentifier(), transformation.getTargetCRS().getIdentifier() ) ) );
094
095 }
096
097 @Override
098 public List<Point3d> doTransform( List<Point3d> srcPts )
099 throws TransformationException {
100 if ( ILogger.LOG_DEBUG == LOG.getLevel() ) {
101 StringBuilder sb = new StringBuilder( "A " );
102 sb.append( getImplementationName() );
103 sb.append( " with incoming points: " );
104 sb.append( srcPts );
105 LOG.logDebug( sb.toString() );
106 }
107 if ( isInverseTransform() ) {
108 LOG.logWarning( "A Direct Transformation cannot be inverse yet" );
109 }
110 return transformation.applyPolynomial( srcPts );
111 }
112
113 @Override
114 public boolean isIdentity() {
115 // a transformation cannot be an identity it doesn't make a lot of sense.
116 return false;
117 }
118
119 @Override
120 public String toString() {
121 return super.toString() + " - Direct-Transformation: " + transformation.getImplementationName();
122 }
123
124 @Override
125 public String getImplementationName() {
126 return transformation.getImplementationName();
127 }
128
129 }