Hi Gaby, Two questions.
Do you know the original geographic/projected coordinate system of the file? Do you have the world file containing the information? A full stacktrace is very helpful. Could you please supply this? Brett -----Original Message----- From: gaby [mailto:[email protected]] Sent: Tuesday, 23 July 2013 8:40 AM To: [email protected] Subject: [Geotools-gt2-users] Examples of doing reprojections of georeferenced PNG images Hello, Are there any recent examples on how to reproject images (rasters)? I am using geotools 9.3. I've tried following the example in the tutorial http://docs.geotools.org/stable/userguide/library/coverage/grid.html. My code: try { File rasterFile = new File("TestData/heathcote_200_depth.png"); AbstractGridFormat format = GridFormatFinder.findFormat( rasterFile ); AbstractGridCoverage2DReader reader = format.getReader(rasterFile); GridCoverage2D myGridCov = reader.read(null); GridCoverage2D reprojected = (GridCoverage2D) Operations.DEFAULT.resample(myGridCov,CRS.decode("EPSG:2193")); } catch (Exception e { ..... } But I get the error: org.geotools.coverage.processing.CannotReprojectException: Can't reproject grid coverage "heathcote_200_depth". ........... ........... Caused by: org.opengis.referencing.operation.OperationNotFoundException: Bursa wolf parameters required. Also, how do I write out the reprojected grid coverage out to file again? Thanx Gaby -- View this message in context: http://osgeo-org.1560.x6.nabble.com/Examples-of-doing-reprojections-of-georeferenced-PNG-images-tp5068068.html Sent from the geotools-gt2-users mailing list archive at Nabble.com. ------------------------------------------------------------------------------ See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk _______________________________________________ GeoTools-GT2-Users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users ------------------------------------------------------------------------------ See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk _______________________________________________ GeoTools-GT2-Users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
