[gdal-dev] Re: Creating new mosaic overview

Thu Aug 19 09:33:28 EDT 2010

Look here, http://www.gdal.org/gdal_retile.html

I think this should do your job.

Cheers

Quoting "Edi.Karadumi" <edikaradumi at gmail.com>:

>
> Yep but im creating an overview so i need a lowered resolution so i need the
> -ps parameter. I know that gdal_merge.py can take more than two files but
> the new mosaiced overview will have 6000 or less tiles, thats why i said
> that i dont want to write the command for every two tiles.
>
> Best Regards
> Edi Karadumi
>
>
> Edi,
>
> You don't have to specify the -ps parameter. You specify it only if you want
> to set a specific resolution. Also, note that gdal_merge.py can accept more
> than two files.
>
> Another way to do what you are probably trying to do is to build a VRT
> file[1] using gdalbuildvrt [2] and then build an external overview using
> "gdaladdo -ro" specifying the level of overview.
>
> On Thu, Aug 19, 2010 at 5:59 PM, Edi.Karadumi <[hidden email]> wrote:
>
> i have 3T of images and there are more than 12000 tiles. I want to create a
> new mosaic overview. Im using the gdal_merge.py command. I cant use
> gdal_merge for every 2 images. Is there any other way to merge the tiles for
> the new layer? if my pixel size of the original tile are 0.08meters, how
> many should be the size of the pixel of the merged tiles? I mean what pixel
> size should i use in the gdal_merge.py ... -ps parameter?
> --
>
>
> Chaitanya kumar CH wrote:
>>
>> Edi,
>>
>> You don't have to specify the -ps parameter. You specify it only if you
>> want
>> to set a specific resolution. Also, note that gdal_merge.py can accept
>> more
>> than two files.
>>
>> Another way to do what you are probably trying to do is to build a VRT
>> file[1] using gdalbuildvrt [2] and then build an external overview using
>> "gdaladdo -ro" specifying the level of overview.
>>
>> On Thu, Aug 19, 2010 at 5:59 PM, Edi.Karadumi <edikaradumi at gmail.com>
>> wrote:
>>
>>>
>>> i have 3T of images and there are more than 12000 tiles. I want to create
>>> a
>>> new mosaic overview. Im using the gdal_merge.py command. I cant use
>>> gdal_merge for every 2 images. Is there any other way to merge the tiles
>>> for
>>> the new layer? if my pixel size of the original tile are 0.08meters, how
>>> many should be the size of the pixel of the merged tiles? I mean what
>>> pixel
>>> size should i use in the gdal_merge.py ... -ps parameter?
>>> --
>>> View this message in context:
>>> http://osgeo-org.1803224.n2.nabble.com/Creating-new-mosaic-overview-tp5439991p5439991.html
>>> Sent from the GDAL - Dev mailing list archive at Nabble.com.
>>> _______________________________________________
>>> gdal-dev mailing list
>>> gdal-dev at lists.osgeo.org
>>> http://lists.osgeo.org/mailman/listinfo/gdal-dev
>>>
>>
>>
>>
>> --
>> Best regards,
>> Chaitanya kumar CH.
>> /tʃaɪθənjə/ /kʊmɑr/
>> +91-9494447584
>> 17.2416N 80.1426E
>>
>> _______________________________________________
>> gdal-dev mailing list
>> gdal-dev at lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/gdal-dev
>>
> Edi,
>
> You don't have to specify the -ps parameter. You specify it only if you want
> to set a specific resolution. Also, note that gdal_merge.py can accept more
> than two files.
>
> Another way to do what you are probably trying to do is to build a VRT
> file[1] using gdalbuildvrt [2] and then build an external overview using
> "gdaladdo -ro" specifying the level of overview.
>
> On Thu, Aug 19, 2010 at 5:59 PM, Edi.Karadumi <edikaradumi at gmail.com> wrote:
>
>>
>> i have 3T of images and there are more than 12000 tiles. I want to create
>> a
>> new mosaic overview. Im using the gdal_merge.py command. I cant use
>> gdal_merge for every 2 images. Is there any other way to merge the tiles
>> for
>> the new layer? if my pixel size of the original tile are 0.08meters, how
>> many should be the size of the pixel of the merged tiles? I mean what
>> pixel
>> size should i use in the gdal_merge.py ... -ps parameter?
>> --
>> View this message in context:
>> http://osgeo-org.1803224.n2.nabble.com/Creating-new-mosaic-overview-tp5439991p5439991.html
>> Sent from the GDAL - Dev mailing list archive at Nabble.com.
>> _______________________________________________
>> gdal-dev mailing list
>> gdal-dev at lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/gdal-dev
>>
>
>
>
> --
> Best regards,
> Chaitanya kumar CH.
> /tʃaɪθənjə/ /kʊmɑr/
> +91-9494447584
> 17.2416N 80.1426E
>
> _______________________________________________
> gdal-dev mailing list
> gdal-dev at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/gdal-dev
>
> Edi,
>
> You don't have to specify the -ps parameter. You specify it only if you want
> to set a specific resolution. Also, note that gdal_merge.py can accept more
> than two files.
>
> Another way to do what you are probably trying to do is to build a VRT
> file[1] using gdalbuildvrt [2] and then build an external overview using
> "gdaladdo -ro" specifying the level of overview.
>
> On Thu, Aug 19, 2010 at 5:59 PM, Edi.Karadumi <edikaradumi at gmail.com> wrote:
>
>>
>> i have 3T of images and there are more than 12000 tiles. I want to create
>> a
>> new mosaic overview. Im using the gdal_merge.py command. I cant use
>> gdal_merge for every 2 images. Is there any other way to merge the tiles
>> for
>> the new layer? if my pixel size of the original tile are 0.08meters, how
>> many should be the size of the pixel of the merged tiles? I mean what
>> pixel
>> size should i use in the gdal_merge.py ... -ps parameter?
>> --
>> View this message in context:
>> http://osgeo-org.1803224.n2.nabble.com/Creating-new-mosaic-overview-tp5439991p5439991.html
>> Sent from the GDAL - Dev mailing list archive at Nabble.com.
>> _______________________________________________
>> gdal-dev mailing list
>> gdal-dev at lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/gdal-dev
>>
>
>
>
> --
> Best regards,
> Chaitanya kumar CH.
> /tʃaɪθənjə/ /kʊmɑr/
> +91-9494447584
> 17.2416N 80.1426E
>
> _______________________________________________
> gdal-dev mailing list
> gdal-dev at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/gdal-dev
>
> --
> View this message in context:   
> http://osgeo-org.1803224.n2.nabble.com/Creating-new-mosaic-overview-tp5439991p5440218.html
> Sent from the GDAL - Dev mailing list archive at Nabble.com.
> _______________________________________________
> gdal-dev mailing list
> gdal-dev at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/gdal-dev
>

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