I'm trying to split a large ECW file into smaller files. I've downloaded and installed OSGeo4W with gdal16 I managed to split a small ecw file. That ecw file had this info:
Driver: ECW/ERMapper Compressed Wavelets Files: tilertest.ecw Size is 6800, 7500 Coordinate System is `' Origin = (13000.000000000000000,381250.000000000000000) Pixel Size = (2.500000000000000,-2.500000000000000) Corner Coordinates: Upper Left ( 13000.000, 381250.000) Lower Left ( 13000.000, 362500.000) Upper Right ( 30000.000, 381250.000) Lower Right ( 30000.000, 362500.000) Center ( 21500.000, 371875.000) Band 1 Block=6800x1 Type=Byte, ColorInterp=Red Overviews: arbitrary Band 2 Block=6800x1 Type=Byte, ColorInterp=Green Overviews: arbitrary Band 3 Block=6800x1 Type=Byte, ColorInterp=Blue Overviews: arbitrary I used this statement: gdal_retile -v -s_srs EPSG:28992 -of ECW -ps 3700 3750 -targetDir tiles TilerTest.ecw But when I try to split the large ecw file (3.4GB) I get an error after a few minutes. The info is: Driver: ECW/ERMapper Compressed Wavelets Files: Large.ecw Size is 173334, 160000 Coordinate System is: LOCAL_CS["LOCAL - (unsupported)", UNIT["Meter",1]] Origin = (33000.000000000000000,381000.000000000000000) Pixel Size = (0.150000000001455,-0.150000000023283) Corner Coordinates: Upper Left ( 33000.000, 381000.000) Lower Left ( 33000.000, 357000.000) Upper Right ( 59000.100, 381000.000) Lower Right ( 59000.100, 357000.000) Center ( 46000.050, 369000.000) Band 1 Block=173334x1 Type=Byte, ColorInterp=Red Overviews: arbitrary Band 2 Block=173334x1 Type=Byte, ColorInterp=Green Overviews: arbitrary Band 3 Block=173334x1 Type=Byte, ColorInterp=Blue Overviews: arbitrary The statement is: gdal_retile -v -s_srs EPSG:28992 -of ECW -ps 86667 80000 -targetDir tiles large.ecw >retile.txt The logfile (retile.txt) shows: Building internal Index for 1 tile(s) ... finished Filename: Terneuzen_15cm.ecw File Size: 173334x160000x3 Pixel Size: 0.150000 x -0.150000 UL:(33000.000000,381000.000000) LR:(59000.100000,356999.999996) tileWidth 86667 tileHeight 80000 countTilesX: 2 countTilesY: 2 lastTileWidth: 86667 lastTileHeight: 80000 And the error is: Traceback (most recent call last): File "C:\OSGeo4W\apps\gdal-16\bin\gdal_retile.py", line 938, in <module> sys.exit(main(sys.argv)) File "C:\OSGeo4W\apps\gdal-16\bin\gdal_retile.py", line 855, in main dsCreatedTileIndex = tileImage(minfo,ti) File "C:\OSGeo4W\apps\gdal-16\bin\gdal_retile.py", line 335, in tileImage createTile(minfo, offsetX, offsetY, width, height,tilename,OGRDS) File "C:\OSGeo4W\apps\gdal-16\bin\gdal_retile.py", line 467, in createTile dec.uly+offsetY*dec.scaleY) File "C:\OSGeo4W\apps\gdal-16\bin\gdal_retile.py", line 250, in getDataSet data = s_band.ReadRaster( readOffsetX,readOffsetY,readX,readY, readX,readY,self.band_type ) File "C:\OSGeo4W\apps\gdal-16\pymod\osgeo\gdal.py", line 760, in ReadRaster return _gdal.Band_ReadRaster(*args, **kwargs) MemoryError I've searched using Google and found a similar error: http://article.gmane.org/gmane.comp.gis.gdal.devel/18936 and contacted Sarah, but she's still having the problem. Does anybody know how to solve this? I run it on a Vista 64-Bit 4-core, with 8GB RAM. I'm getting the same error on a WinXP sp3 2-core, with 2 GB RAM Thanks, Paul Meems The Netherlands
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