Source Code Cross Referenced for GeoTiffWriter.java in  » GIS » GeoTools-2.4.1 » org » geotools » gce » geotiff » Java Source Code / Java DocumentationJava Source Code and Java Documentation

Java Source Code / Java Documentation
1. 6.0 JDK Core
2. 6.0 JDK Modules
3. 6.0 JDK Modules com.sun
4. 6.0 JDK Modules com.sun.java
5. 6.0 JDK Modules sun
6. 6.0 JDK Platform
7. Ajax
8. Apache Harmony Java SE
9. Aspect oriented
10. Authentication Authorization
11. Blogger System
12. Build
13. Byte Code
14. Cache
15. Chart
16. Chat
17. Code Analyzer
18. Collaboration
19. Content Management System
20. Database Client
21. Database DBMS
22. Database JDBC Connection Pool
23. Database ORM
24. Development
25. EJB Server geronimo
26. EJB Server GlassFish
27. EJB Server JBoss 4.2.1
28. EJB Server resin 3.1.5
29. ERP CRM Financial
30. ESB
31. Forum
32. GIS
33. Graphic Library
34. Groupware
35. HTML Parser
36. IDE
37. IDE Eclipse
38. IDE Netbeans
39. Installer
40. Internationalization Localization
41. Inversion of Control
42. Issue Tracking
43. J2EE
44. JBoss
45. JMS
46. JMX
47. Library
48. Mail Clients
49. Net
50. Parser
51. PDF
52. Portal
53. Profiler
54. Project Management
55. Report
56. RSS RDF
57. Rule Engine
58. Science
59. Scripting
60. Search Engine
61. Security
62. Sevlet Container
63. Source Control
64. Swing Library
65. Template Engine
66. Test Coverage
67. Testing
68. UML
69. Web Crawler
70. Web Framework
71. Web Mail
72. Web Server
73. Web Services
74. Web Services apache cxf 2.0.1
75. Web Services AXIS2
76. Wiki Engine
77. Workflow Engines
78. XML
79. XML UI
Java
Java Tutorial
Java Open Source
Jar File Download
Java Articles
Java Products
Java by API
Photoshop Tutorials
Maya Tutorials
Flash Tutorials
3ds-Max Tutorials
Illustrator Tutorials
GIMP Tutorials
C# / C Sharp
C# / CSharp Tutorial
C# / CSharp Open Source
ASP.Net
ASP.NET Tutorial
JavaScript DHTML
JavaScript Tutorial
JavaScript Reference
HTML / CSS
HTML CSS Reference
C / ANSI-C
C Tutorial
C++
C++ Tutorial
Ruby
PHP
Python
Python Tutorial
Python Open Source
SQL Server / T-SQL
SQL Server / T-SQL Tutorial
Oracle PL / SQL
Oracle PL/SQL Tutorial
PostgreSQL
SQL / MySQL
MySQL Tutorial
VB.Net
VB.Net Tutorial
Flash / Flex / ActionScript
VBA / Excel / Access / Word
XML
XML Tutorial
Microsoft Office PowerPoint 2007 Tutorial
Microsoft Office Excel 2007 Tutorial
Microsoft Office Word 2007 Tutorial
Java Source Code / Java Documentation » GIS » GeoTools 2.4.1 » org.geotools.gce.geotiff 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         *    GeoTools - OpenSource mapping toolkit
003:         *    http://geotools.org
004:         *    (C) 2005-2006, GeoTools Project Managment Committee (PMC)
005:         *
006:         *    This library is free software; you can redistribute it and/or
007:         *    modify it under the terms of the GNU Lesser General Public
008:         *    License as published by the Free Software Foundation;
009:         *    version 2.1 of the License.
010:         *
011:         *    This library is distributed in the hope that it will be useful,
012:         *    but WITHOUT ANY WARRANTY; without even the implied warranty of
013:         *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014:         *    Lesser General Public License for more details.
015:         */
016:        package org.geotools.gce.geotiff;
017:
018:        import java.awt.geom.AffineTransform;
019:        import java.awt.image.RenderedImage;
020:        import java.io.File;
021:        import java.io.IOException;
022:        import java.io.OutputStream;
023:        import java.net.URL;
024:        import java.net.URLDecoder;
025:
026:        import javax.imageio.IIOException;
027:        import javax.imageio.IIOImage;
028:        import javax.imageio.ImageIO;
029:        import javax.imageio.ImageTypeSpecifier;
030:        import javax.imageio.ImageWriteParam;
031:        import javax.imageio.ImageWriter;
032:        import javax.imageio.metadata.IIOInvalidTreeException;
033:        import javax.imageio.metadata.IIOMetadata;
034:        import javax.imageio.stream.FileCacheImageOutputStream;
035:        import javax.imageio.stream.ImageOutputStream;
036:
037:        import org.geotools.coverage.grid.GridCoverage2D;
038:        import org.geotools.coverage.grid.io.AbstractGridCoverageWriter;
039:        import org.geotools.coverage.grid.io.AbstractGridFormat;
040:        import org.geotools.coverage.grid.io.imageio.GeoToolsWriteParams;
041:        import org.geotools.factory.Hints;
042:        import org.geotools.gce.geotiff.IIOMetadataAdpaters.GeoTiffIIOMetadataEncoder;
043:        import org.geotools.gce.geotiff.IIOMetadataAdpaters.utils.GeoTiffConstants;
044:        import org.geotools.gce.geotiff.crs_adapters.CRS2GeoTiffMetadataAdapter;
045:        import org.geotools.parameter.Parameter;
046:        import org.geotools.referencing.operation.matrix.XAffineTransform;
047:        import org.jdom.Document;
048:        import org.jdom.Element;
049:        import org.jdom.JDOMException;
050:        import org.jdom.Parent;
051:        import org.jdom.input.DOMBuilder;
052:        import org.jdom.output.DOMOutputter;
053:        import org.opengis.coverage.grid.Format;
054:        import org.opengis.coverage.grid.GridCoverage;
055:        import org.opengis.coverage.grid.GridCoverageWriter;
056:        import org.opengis.coverage.grid.GridGeometry;
057:        import org.opengis.coverage.grid.GridRange;
058:        import org.opengis.parameter.GeneralParameterValue;
059:        import org.opengis.referencing.crs.CoordinateReferenceSystem;
060:        import org.opengis.referencing.crs.GeographicCRS;
061:        import org.opengis.referencing.crs.ProjectedCRS;
062:        import org.opengis.referencing.operation.TransformException;
063:
064:        import com.sun.media.imageioimpl.plugins.tiff.TIFFImageMetadata;
065:        import com.sun.media.imageioimpl.plugins.tiff.TIFFImageWriterSpi;
066:
067:        /**
068:         * @author Simone Giannecchini
069:         * @source $URL:
070:         *         http://svn.geotools.org/geotools/trunk/gt/plugin/geotiff/src/org/geotools/gce/geotiff/GeoTiffWriter.java $
071:         */
072:        public final class GeoTiffWriter extends AbstractGridCoverageWriter
073:                implements  GridCoverageWriter {
074:
075:            /** factory for getting tiff writers. */
076:            private final static TIFFImageWriterSpi tiffWriterFactory = new TIFFImageWriterSpi();
077:
078:            /**
079:             * Constructor for a {@link GeoTiffWriter}.
080:             * 
081:             * @param destination
082:             * @throws IOException
083:             */
084:            public GeoTiffWriter(Object destination) throws IOException {
085:                this (destination, null);
086:
087:            }
088:
089:            /**
090:             * Constructor for a {@link GeoTiffWriter}.
091:             * 
092:             * @param destination
093:             * @param hints
094:             * @throws IOException
095:             */
096:            public GeoTiffWriter(Object destination, Hints hints)
097:                    throws IOException {
098:
099:                this .destination = destination;
100:                if (destination instanceof  File)
101:                    this .outStream = ImageIO
102:                            .createImageOutputStream(destination);
103:                else if (destination instanceof  URL) {
104:                    final URL dest = (URL) destination;
105:                    if (dest.getProtocol().equalsIgnoreCase("file")) {
106:                        final File destFile = new File(URLDecoder.decode(dest
107:                                .getFile(), "UTF-8"));
108:                        this .outStream = ImageIO
109:                                .createImageOutputStream(destFile);
110:                    }
111:
112:                } else if (destination instanceof  OutputStream) {
113:
114:                    this .outStream = ImageIO
115:                            .createImageOutputStream((OutputStream) destination);
116:
117:                } else if (destination instanceof  ImageOutputStream)
118:                    this .outStream = (ImageOutputStream) destination;
119:                else
120:                    throw new IllegalArgumentException(
121:                            "The provided destination canno be used!");
122:                // //
123:                //
124:                // managing hints
125:                //
126:                // //
127:                if (hints != null) {
128:                    if (super .hints == null)
129:                        this .hints = new Hints(null);
130:                    hints.add(hints);
131:                }
132:
133:            }
134:
135:            /*
136:             * (non-Javadoc)
137:             * 
138:             * @see org.opengis.coverage.grid.GridCoverageWriter#getFormat()
139:             */
140:            public Format getFormat() {
141:                return new GeoTiffFormat();
142:            }
143:
144:            /*
145:             * (non-Javadoc)
146:             * 
147:             * @see org.opengis.coverage.grid.GridCoverageWriter#write(org.opengis.coverage.grid.GridCoverage,
148:             *      org.opengis.parameter.GeneralParameterValue[])
149:             */
150:            public void write(final GridCoverage gc,
151:                    final GeneralParameterValue[] params)
152:                    throws IllegalArgumentException, IOException,
153:                    IndexOutOfBoundsException {
154:
155:                GeoToolsWriteParams gtParams = null;
156:                if (params != null) {
157:                    // /////////////////////////////////////////////////////////////////////
158:                    //
159:                    // Checking params
160:                    //
161:                    // /////////////////////////////////////////////////////////////////////
162:                    if (params != null) {
163:                        Parameter param;
164:                        final int length = params.length;
165:                        for (int i = 0; i < length; i++) {
166:                            param = (Parameter) params[i];
167:                            if (param
168:                                    .getDescriptor()
169:                                    .getName()
170:                                    .getCode()
171:                                    .equals(
172:                                            AbstractGridFormat.GEOTOOLS_WRITE_PARAMS
173:                                                    .getName().toString())) {
174:                                gtParams = (GeoToolsWriteParams) param
175:                                        .getValue();
176:                            }
177:                        }
178:                    }
179:                }
180:                if (gtParams == null)
181:                    gtParams = new GeoTiffWriteParams();
182:
183:                // /////////////////////////////////////////////////////////////////////
184:                //
185:                // getting the coordinate reference system
186:                //
187:                // /////////////////////////////////////////////////////////////////////
188:                final CoordinateReferenceSystem crs = gc
189:                        .getCoordinateReferenceSystem();
190:
191:                // /////////////////////////////////////////////////////////////////////
192:                //
193:                // we handle just projected andgeographic crs
194:                //
195:                // /////////////////////////////////////////////////////////////////////
196:                if (crs instanceof  ProjectedCRS || crs instanceof  GeographicCRS) {
197:
198:                    // creating geotiff metadata
199:                    final CRS2GeoTiffMetadataAdapter adapter = (CRS2GeoTiffMetadataAdapter) CRS2GeoTiffMetadataAdapter
200:                            .get(crs);
201:                    final GeoTiffIIOMetadataEncoder metadata = adapter
202:                            .parseCoordinateReferenceSystem();
203:
204:                    // setting georeferencing
205:                    final GridGeometry gg = gc.getGridGeometry();
206:                    final GridRange range = gg.getGridRange();
207:                    final AffineTransform tr = (AffineTransform) gg
208:                            .getGridToCRS();
209:                    setGeoReference(crs, metadata, tr, range);
210:
211:                    // writing ALWAYS the geophysics vew of the data
212:                    writeImage(((GridCoverage2D) gc).geophysics(true)
213:                            .getRenderedImage(), this .outStream, metadata,
214:                            gtParams);
215:
216:                } else
217:                    throw new GeoTiffException(
218:                            null,
219:                            "The supplied grid coverage uses an unsupported crs! You are allowed to use only projected and geographic coordinate reference systems",
220:                            null);
221:            }
222:
223:            /**
224:             * This method is used to set the tie point and the scale parameters for the
225:             * GeoTiff file we are writing or the ModelTransformation in case a more
226:             * general {@link AffineTransform} is needed to represent the raster space
227:             * to model space transform.
228:             * 
229:             * <p>
230:             * This method works regardles of the nature fo the crs without making any
231:             * assumptions on the order or the direction of the axes, but checking them
232:             * from the supplied CRS.
233:             * 
234:             * @see {@link http://lists.maptools.org/pipermail/geotiff/2006-January/000213.html}
235:             * @see {@http://lists.maptools.org/pipermail/geotiff/2006-January/000212.html}
236:             * @param crs
237:             *            The {@link CoordinateReferenceSystem} of the
238:             *            {@link GridCoverage2D} to encode.
239:             * @param metadata
240:             *            where to set the georeferencing information.
241:             * @param range
242:             *            that describes the raster space for this geotiff.
243:             * @param rasterToModel
244:             *            describes the {@link AffineTransform} between raster space and
245:             *            model space.
246:             * 
247:             * @throws IndexOutOfBoundsException
248:             * @throws IOException
249:             * @throws TransformException
250:             */
251:            private void setGeoReference(final CoordinateReferenceSystem crs,
252:                    final GeoTiffIIOMetadataEncoder metadata,
253:                    final AffineTransform rasterToModel, GridRange range)
254:                    throws IndexOutOfBoundsException, IOException {
255:
256:                // /////////////////////////////////////////////////////////////////////
257:                //
258:                // We have to set an affine transformation which is going to be 2D
259:                // since we support baseline GeoTiff.
260:                //
261:                // /////////////////////////////////////////////////////////////////////
262:                AffineTransform modifiedRasterToModel;
263:                int minx = range.getLower(0), miny = range.getLower(1);
264:                if (minx != 0 || miny != 0) {
265:                    // //
266:                    //
267:                    // Preconcatenate a transform to have raster space beginning at
268:                    // (0,0)
269:                    //
270:                    // //
271:                    modifiedRasterToModel = new AffineTransform(rasterToModel);
272:                    modifiedRasterToModel.concatenate(AffineTransform
273:                            .getTranslateInstance(minx, miny));
274:                } else
275:                    modifiedRasterToModel = rasterToModel;
276:
277:                // /////////////////////////////////////////////////////////////////////
278:                //
279:                // Setting raster type to pixel centre since the ogc specifications
280:                // require so.
281:                //
282:                // /////////////////////////////////////////////////////////////////////
283:                metadata.addGeoShortParam(GeoTiffConstants.GTRasterTypeGeoKey,
284:                        GeoTiffConstants.RasterPixelIsPoint);
285:
286:                // /////////////////////////////////////////////////////////////////////
287:                //		
288:                // AXES DIRECTION
289:                //
290:                // we need to understand how the axes of this gridcoverage are
291:                // specified, trying to understand the direction of the first axis in
292:                // order to correctly use transformations.
293:                //
294:                // Note that here wew assume that in case of a Flip the flip is on the Y
295:                // axis.
296:                //
297:                // /////////////////////////////////////////////////////////////////////
298:                boolean lonFirst = XAffineTransform.getSwapXY(rasterToModel) != -1;
299:
300:                // /////////////////////////////////////////////////////////////////////
301:                //		
302:                // ROTATION
303:                //
304:                // If fthere is not rotation or shearing or flipping we have a simple
305:                // scale and translate hence we can simply set the tie points.
306:                //
307:                // /////////////////////////////////////////////////////////////////////
308:                double rotation = XAffineTransform.getRotation(rasterToModel);
309:
310:                // /////////////////////////////////////////////////////////////////////
311:                //
312:                // Deciding how to save the georef with respect to the CRS.
313:                //
314:                // /////////////////////////////////////////////////////////////////////
315:                // tie points
316:                if (!(Double.isInfinite(rotation) || Double.isNaN(rotation) || Math
317:                        .abs(rotation) > 1E-6)) {
318:                    final double tiePointLongitude = (lonFirst) ? rasterToModel
319:                            .getTranslateX() : rasterToModel.getTranslateY();
320:                    final double tiePointLatitude = (lonFirst) ? rasterToModel
321:                            .getTranslateY() : rasterToModel.getTranslateX();
322:                    metadata.setModelTiePoint(0, 0, 0, tiePointLongitude,
323:                            tiePointLatitude, 0);
324:                    // scale
325:                    final double scaleModelToRasterLongitude = (lonFirst) ? Math
326:                            .abs(rasterToModel.getScaleX())
327:                            : Math.abs(rasterToModel.getShearY());
328:                    final double scaleModelToRasterLatitude = (lonFirst) ? Math
329:                            .abs(rasterToModel.getScaleY()) : Math
330:                            .abs(rasterToModel.getShearX());
331:                    metadata.setModelPixelScale(scaleModelToRasterLongitude,
332:                            scaleModelToRasterLatitude, 0);
333:                    // Alternative code, not yet enabled in order to avoid breaking
334:                    // code.
335:                    // The following code is insensitive to axis order and rotations in
336:                    // the
337:                    // 'coord' space (not in the 'grid' space, otherwise we would not
338:                    // take
339:                    // the inverse of the matrix).
340:                    /*
341:                     * final AffineTransform coordToGrid = gridToCoord.createInverse();
342:                     * final double scaleModelToRasterLongitude = 1 /
343:                     * XAffineTransform.getScaleX0(coordToGrid); final double
344:                     * scaleModelToRasterLatitude = 1 /
345:                     * XAffineTransform.getScaleY0(coordToGrid);
346:                     */
347:                } else {
348:
349:                    metadata.setModelTransformation(modifiedRasterToModel);
350:
351:                }
352:            }
353:
354:            /**
355:             * Writes the provided rendered image to the provided image output stream
356:             * using the supplied geotiff metadata.
357:             * 
358:             * @param gtParams
359:             */
360:            private boolean writeImage(final RenderedImage image,
361:                    final ImageOutputStream outputStream,
362:                    final GeoTiffIIOMetadataEncoder geoTIFFMetadata,
363:                    GeoToolsWriteParams gtParams) throws IOException {
364:                if (image == null || outputStream == null) {
365:                    throw new IllegalArgumentException(
366:                            "some parameters are null");
367:                }
368:                final ImageWriteParam params = gtParams.getAdaptee();
369:                // /////////////////////////////////////////////////////////////////////
370:                //
371:                // GETTING READER AND METADATA
372:                //
373:                // /////////////////////////////////////////////////////////////////////
374:                final ImageWriter writer = tiffWriterFactory
375:                        .createWriterInstance();
376:                final IIOMetadata metadata = createGeoTiffIIOMetadata(writer,
377:                        ImageTypeSpecifier.createFromRenderedImage(image),
378:                        geoTIFFMetadata, params);
379:
380:                // /////////////////////////////////////////////////////////////////////
381:                //
382:                // IMAGEWRITE
383:                //
384:                // /////////////////////////////////////////////////////////////////////
385:                writer.setOutput(outputStream);
386:                writer.write(writer.getDefaultStreamMetadata(params),
387:                        new IIOImage(image, null, metadata), params);
388:
389:                // /////////////////////////////////////////////////////////////////////
390:                //
391:                // release resources
392:                //
393:                // /////////////////////////////////////////////////////////////////////
394:                outputStream.flush();
395:                if (!(destination instanceof  ImageOutputStream))
396:                    outputStream.close();
397:                writer.dispose();
398:
399:                return true;
400:            }
401:
402:            /**
403:             * Creates image metadata which complies to the GeoTIFFWritingUtilities
404:             * specification for the given image writer, image type and
405:             * GeoTIFFWritingUtilities metadata.
406:             * 
407:             * @param writer
408:             *            the image writer, must not be null
409:             * @param type
410:             *            the image type, must not be null
411:             * @param geoTIFFMetadata
412:             *            the GeoTIFFWritingUtilities metadata, must not be null
413:             * @param params
414:             * @return the image metadata, never null
415:             * @throws IIOException
416:             *             if the metadata cannot be created
417:             */
418:            public final static IIOMetadata createGeoTiffIIOMetadata(
419:                    ImageWriter writer, ImageTypeSpecifier type,
420:                    GeoTiffIIOMetadataEncoder geoTIFFMetadata,
421:                    ImageWriteParam params) throws IIOException {
422:                IIOMetadata imageMetadata = writer.getDefaultImageMetadata(
423:                        type, params);
424:                imageMetadata = writer.convertImageMetadata(imageMetadata,
425:                        type, params);
426:                org.w3c.dom.Element w3cElement = (org.w3c.dom.Element) imageMetadata
427:                        .getAsTree(GeoTiffConstants.GEOTIFF_IIO_METADATA_FORMAT_NAME);
428:                final Element element = new DOMBuilder().build(w3cElement);
429:
430:                geoTIFFMetadata.assignTo(element);
431:
432:                final Parent parent = element.getParent();
433:                parent.removeContent(element);
434:
435:                final Document document = new Document(element);
436:
437:                try {
438:                    final org.w3c.dom.Document w3cDoc = new DOMOutputter()
439:                            .output(document);
440:
441:                    /*
442:                     * DOMSerializerImpl domSerializer = new DOMSerializerImpl();
443:                     * System.out.println(domSerializer.writeToString(w3cDoc.getFirstChild()));
444:                     */
445:
446:                    final IIOMetadata iioMetadata = new TIFFImageMetadata(
447:                            TIFFImageMetadata.parseIFD(w3cDoc
448:                                    .getDocumentElement().getFirstChild()));
449:                    imageMetadata = iioMetadata;
450:                } catch (JDOMException e) {
451:                    throw new IIOException(
452:                            "Failed to set GeoTIFFWritingUtilities specific tags.",
453:                            e);
454:                } catch (IIOInvalidTreeException e) {
455:                    throw new IIOException(
456:                            "Failed to set GeoTIFFWritingUtilities specific tags.",
457:                            e);
458:                }
459:
460:                return imageMetadata;
461:            }
462:        }
www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.