001 //$HeadURL: svn+ssh://jwilden@svn.wald.intevation.org/deegree/base/branches/2.5_testing/src/org/deegree/tools/srs/PolynomialParameterCreator.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.tools.srs;
038
039 import java.io.BufferedReader;
040 import java.io.File;
041 import java.io.FileReader;
042 import java.io.IOException;
043 import java.util.ArrayList;
044 import java.util.HashMap;
045 import java.util.LinkedList;
046 import java.util.List;
047 import java.util.Map;
048
049 import javax.vecmath.Point3d;
050
051 import org.deegree.crs.Identifiable;
052 import org.deegree.crs.transformations.polynomial.LeastSquareApproximation;
053 import org.deegree.crs.transformations.polynomial.PolynomialTransformation;
054 import org.deegree.framework.log.ILogger;
055 import org.deegree.framework.log.LoggerFactory;
056 import org.deegree.model.crs.CRSFactory;
057 import org.deegree.model.crs.CoordinateSystem;
058 import org.deegree.model.crs.UnknownCRSException;
059
060 /**
061 * <code>PolynomialParameterCreator</code> allows for the calculation of a
062 *
063 * @author <a href="mailto:bezema@lat-lon.de">Rutger Bezema</a>
064 *
065 * @author last edited by: $Author: mschneider $
066 *
067 * @version $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18 Jun 2009) $
068 *
069 */
070 public class PolynomialParameterCreator {
071
072 private static ILogger LOG = LoggerFactory.getLogger( PolynomialParameterCreator.class );
073
074 /**
075 * Simple constructor which reads coordinate pairs from a different files (using the separator) and stores them in a
076 * list.
077 *
078 * @param sourceFile
079 * to read the source coordinates from
080 * @param targetFile
081 * to read the target coordinates from.
082 *
083 * @param seperator
084 * which separates the coordinates (e.g. ; or , )
085 * @param source
086 * the source crs in which the first read points are given
087 * @param target
088 * the target crs in which the read points are defined.
089 * @param transformationClass
090 * to use
091 * @param order
092 * of the polynomial.
093 * @throws IOException
094 * if the file could not be read.
095 */
096 public PolynomialParameterCreator( File sourceFile, File targetFile, String seperator, CoordinateSystem source,
097 CoordinateSystem target, String transformationClass, final int order )
098 throws IOException {
099
100 List<Point3d> from = readFromFile( sourceFile, source.getDimension(), seperator );
101 List<Point3d> to = readFromFile( targetFile, target.getDimension(), seperator );
102 if ( from.size() != to.size() ) {
103 LOG.logError( "The number of coordinates in the from file( " + from.size()
104 + ") differ from the targetFile (" + to.size() + ") , this maynot be!" );
105 System.exit( 1 );
106 }
107 if ( transformationClass == null || "".equals( transformationClass.trim() ) ) {
108 throw new IllegalArgumentException( "The transformation class may not be null" );
109 }
110
111 PolynomialTransformation transform = null;
112 List<Double> params = new LinkedList<Double>();
113 // 48.01903, 0.002305167, -0.0011897635, 1.0666529E-5, -8.303933E-6, 4.4940844E-6, -3.8565862E-11,
114 // 5.0593762E-11, -2.230412E-11, 2.968846E-12
115 // 3.0465062, -1.5860682E-4, 4.3924665E-4, 1.2747373E-6, -1.103672E-6, 5.936716E-7, -2.3854978E-12,
116 // 3.0211528E-12, -1.2788576E-12, 1.4953932E-13
117
118 params.add( new Double( 1 ) );
119 if ( "leastsquares".equals( transformationClass.toLowerCase().trim() ) ) {
120 transform = new LeastSquareApproximation( params, params, source.getCRS(), target.getCRS(), 1, 1,
121 new Identifiable( "Tmp ID" ) );
122 }
123 if ( transform != null ) {
124 float[][] calculatedParams = transform.createVariables( from, to, order );
125 StringBuilder sb = new StringBuilder();
126 for ( int i = 0; i < calculatedParams.length; ++i ) {
127 String t = "crs:" + ( i == 0 ? "x" : "y" ) + "Parameters>";
128 sb.append( "<" ).append( t );
129 for ( int y = 0; y < calculatedParams[i].length; ++y ) {
130 sb.append( calculatedParams[i][y] );
131 if ( ( y + 1 ) < calculatedParams[i].length ) {
132 sb.append( " " );
133 }
134 }
135 sb.append( "</" ).append( t ).append( "\n" );
136 }
137 LOG.logInfo( "Resulted params:\n" + sb.toString() );
138 }
139 }
140
141 private List<Point3d> readFromFile( File f, int dim, String seperator )
142 throws IOException {
143 LOG.logInfo( "Trying to read reference points from file: " + f );
144 List<Point3d> result = new ArrayList<Point3d>();
145 BufferedReader br = new BufferedReader( new FileReader( f ) );
146 String coords = br.readLine();
147 int lineCount = 1;
148 while ( coords != null ) {
149 if ( !coords.startsWith( "#" ) ) {
150 String[] coordinates = coords.split( seperator );
151 if ( coordinates.length != dim ) {
152 LOG.logWarning( lineCount
153 + ") Each line must contain the number of coordinates fitting the dimension of crs ("
154 + dim + ") seperated by a '" + seperator + "'." );
155 } else {
156 Point3d coord = new Point3d();
157 coord.x = Double.parseDouble( coordinates[0].replace( ",", "." ) );
158 coord.y = Double.parseDouble( coordinates[1].replace( ",", "." ) );
159 if ( dim == 3 ) {
160 coord.z = Double.parseDouble( coordinates[2].replace( ",", "." ) );
161 }
162 result.add( coord );
163 }
164 }
165 lineCount++;
166 coords = br.readLine();
167 }
168 br.close();
169 return result;
170
171 }
172
173 /**
174 * a starter method to test the quality of projections.
175 *
176 * @param args
177 */
178 public static void main( String[] args ) {
179 if ( args.length == 0 ) {
180 outputHelp();
181 }
182 Map<String, String> params = new HashMap<String, String>( 5 );
183 for ( int i = 0; i < args.length; i++ ) {
184 String arg = args[i];
185 if ( arg != null && !"".equals( arg.trim() ) ) {
186 arg = arg.trim();
187 if ( arg.equalsIgnoreCase( "-?" ) || arg.equalsIgnoreCase( "-h" ) ) {
188 outputHelp();
189 } else {
190 if ( i + 1 < args.length ) {
191 String val = args[++i];
192 if ( val != null ) {
193 params.put( arg, val.trim() );
194 } else {
195 System.out.println( "Invalid value for parameter: " + arg );
196 }
197 } else {
198 System.out.println( "No value for parameter: " + arg );
199 }
200 }
201 }
202 }
203 String sourceFile = params.get( "-sourceFile" );
204 if ( sourceFile == null || "".equals( sourceFile.trim() ) ) {
205 LOG.logError( "No file with reference points in the source CRS given (-sourceFile parameter)" );
206 System.exit( 1 );
207 }
208
209 String sourceCRS = params.get( "-sourceCRS" );
210 if ( sourceCRS == null || "".equals( sourceCRS.trim() ) ) {
211 LOG.logError( "No source CRS given (-sourceCRS parameter)" );
212 System.exit( 1 );
213 }
214 String targetCRS = params.get( "-targetCRS" );
215 if ( targetCRS == null || "".equals( targetCRS.trim() ) ) {
216 LOG.logError( "No target CRS given (-targetCRS parameter)" );
217 System.exit( 1 );
218 }
219
220 String targetFile = params.get( "-targetFile" );
221 if ( targetFile == null || "".equals( targetFile.trim() ) ) {
222 LOG.logError( "No file with reference points in the target CRS given (-targetFile parameter)" );
223 System.exit( 1 );
224 }
225
226 String polyOrder = params.get( "-order" );
227 int order = 0;
228 if ( polyOrder == null || "".equals( polyOrder.trim() ) ) {
229 LOG.logError( "No polynomial order (-order parameter) given. Not continuing." );
230 System.exit( 1 );
231 }
232 order = Integer.parseInt( polyOrder );
233
234 String transformClass = params.get( "-transformClass" );
235 if ( polyOrder == null || "".equals( polyOrder.trim() ) ) {
236 LOG.logError( "No transformation class (-transformClass parameter) given. Not continuing." );
237 System.exit( 1 );
238 }
239
240 String coordSep = params.get( "-coordSep" );
241 if ( coordSep == null || "".equals( coordSep ) ) {
242 LOG.logInfo( "No coordinates separator given (-coordSep parameter), therefore using ' ' (a space) as separator" );
243 coordSep = " ";
244 }
245
246 LOG.logInfo( "Trying to convert coordinates from: " + sourceCRS + " to: " + targetCRS );
247
248 try {
249 CoordinateSystem source = CRSFactory.create( sourceCRS );
250 CoordinateSystem target = CRSFactory.create( targetCRS );
251 new PolynomialParameterCreator( new File( sourceFile ), new File( targetFile ), coordSep, source, target,
252 transformClass, order );
253
254 } catch ( IOException e ) {
255 LOG.logError( e.getMessage(), e );
256 } catch ( UnknownCRSException e ) {
257 LOG.logError( e.getMessage(), e );
258 }
259
260 }
261
262 private static void outputHelp() {
263 StringBuilder sb = new StringBuilder();
264 sb.append( "The PolynomialParamter program can be used to create the polynomial variables to approximate a given\n" );
265 sb.append( "function, which is defined by two list of coordinates.\n" );
266 sb.append( "Following parameters are supported:\n" );
267 sb.append( "-sourceFile the /path/of/the_source_crs_reference_points -file\n" );
268 sb.append( "-srcCRS the name of the source crs, e.g. EPSG:4326.\n" );
269 sb.append( "-targetCRS the name of the target crs, e.g. EPSG:31467.\n" );
270 sb.append( "-targetFile the /path/to/the_target_crs_reference_points.\n" );
271 sb.append( "-order the polynomial order to calculate the values for.\n" );
272 sb.append( "-transformClass the simple name of the transformation polynomial at the moment following values are supported:\n" );
273 sb.append( "\t - leastsquares\n" );
274 sb.append( "[-coordSep] separator of between the coords in the file(s), e.g. ; or ' ', if omitted a space is assumed.\n" );
275 sb.append( "-?|-h output this text\n" );
276 System.out.println( sb.toString() );
277 System.exit( 1 );
278 }
279
280 }