[gdal-dev] Re: Output format in using gdal_translate

[estrada.adam at gmail.com]

Limei,
    Please have a look at all the supported file formats listed here.

http://gdal.org/formats_list.html

AWE


On Feb 18, 11:29 am, Limei Ran <l... at unc.edu> wrote:
> Hi,
>
> Thanks for all your help on using gdal_translate.  I was successful on
> creating a huge image with -of HFA.  I still have two questions about
> raster formats used in GDAL:
>
> 1. The utility created three output files:
> out.ige, out.img, out.img.aux.xml.  What is .ige file (it is a huge
> file --  close to 12gb) since my input has only two files with .img and
> .rrd?
>
> 2. I am creating a raster file for some calculation.  So, formats do
> not matter as long as it is efficient in storing and accessing. Is any
> GDAL raster format with no Limit Size (such as ESRI .hdr Labelled)
> better than HFA format in storing and accessing?
>
> Thanks,
>
> Limei
>
> Quoting estrada.adam:
>
>
>
>
>
> > Limei,
> >     Gdal_translate defaults the output file to GeoTIFF unless you
> > specify that it is another file type.  You can do this by using the
> > argument ( -of )  which in this case will be HFA  (-of HFA).  The way
> > you currently have your command line configured, the output file will
> > still be a TIFF even though you have specified that the extension
> > is .img.  An ERDAS IMAGINE .img can and will create files that far
> > exceed 4 gigs.
>
> > Regards,
> > AWE
>
> > On Feb 15, 10:21 am, WolfgangZ <wol... at gmx.net> wrote:
> >> Limei Ran schrieb:
>
> >> > Hi Frank,
>
> >> > Thank you for your help on creating a raster file from polygons.
>
> >> > I am creating a big file using gdal_translate and I got the following
> >> > message:
> >> > ===================================
> >> > gdal_translate landcover.img -a_ullr -1170075 3217665 2324145 188865
> >> > -scale 0 255 0 0 -outsize 116474 100960 test.img
> >> > Input file size is 33146, 52402
> >> > 0ERROR 6: A 116474 pixels x 100960 lines x 1 bands Byte image would be
> >> > larger than 4GB
> >> > but this is the largest size a TIFF can be.  Creation failed.
> >> > ===================================
>
> >> > Is there any way I can create this raster (other formats) without this
> >> > space limitation?
>
> >> > Thanks,
>
> >> > Limei
>
> >> hi,
>
> >> try it with these additional create options:
> >> -co BIGTIFF=YES -co TILED=YES
>
> >> BIGTIFF allows you to exceed the 4GB
> >> TILED should speed up the reading of the output file as reading of small
> >> parts of the image
>
> >> Have a look athttp://www.gdal.org/frmt_gtiff.htmlforother create
> >> options for the tiff format andhttp://www.gdal.org/formats_list.html
> >> gives you a hint of the maximum file size
>
> >> regards
> >> Wolfgang
>
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