Tiff files are composed of either one or more tiles, or one or more stripes. No single tile or stripe can be larger than 2 GB. The original Tiff standard further required that a .tif file not be larger than 4 GB. The BigTiff standard does away with this 4 GB .tif file limit. GDAL supports BigTiff with 4 create options BIGTIFF=YES/NO/IF_NEEDED/IF_SAFER http://www.gdal.org/frmt_gtiff.html
I have successfully created tiled 150 GB .tif files in 2 hours with gdal_translate (and gdal_merge.py) like this gdal_translate -of GTiff -ot Byte --config GDAL_CACHEMAX 1000 \ -co TILED=YES -co BLOCKXSIZE=1024 -co BLOCKYSIZE=1024 \ -co BIGTIFF=YES in.tif out.tif GDAL indicates it progress like this 0...10...20...30...40...50...60...70...80...90...100 - done. Greg On Jul 14, 2010, at 10:38 AM, Pasta Bolognese wrote: > Hi Tejas , > > where did you get that 30GB Tiff file from ? I tough that the maximum > size for a Tiff was 4GB... > > > > On Wed, Jul 14, 2010 at 3:33 PM, Tejas Gajera <tejas.gaj...@gmail.com> wrote: >> >> Hi, >> >> I have a Tiff image of around 30GB, and I want to create tiles using >> GDAL2Tiles command line utility. If anyone have used GDAL2Tiles command >> utility, please let me know how long it takes to generate all tiles? >> >> I have started tilling process two days ago and its still running (under >> process). I have no idea how long it going to take. >> >> Please throw anything you know about GDAL2Tiles. >> >> Thanks in advance. >> >> Best, >> Tejas Gajera >> -- >> View this message in context: >> http://osgeo-org.1803224.n2.nabble.com/GDAL2Tiles-tp5292819p5292819.html >> Sent from the GDAL - Dev mailing list archive at Nabble.com.
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