[gdal-dev] GDAL2Tiles

[Greg Coats]

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.gajera at 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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