[Gdal-dev] gdal_retile.py -r mode ?

[acangi]

Thanks for your answer.

I'd be more interested in a "mode" resampling method for gdal_retile. Is it
something you're thinking of ? Can it be reused from gdaladdo ?



Christian Müller wrote:
> 
> The error is correct. A look at the man page shows 
> 
> gdal_retile.py [-v] [-co NAME=VALUE]* [-of out_format] [-ps pixelWidth 
> pixelHeight]
>               [-ot  {Byte/Int16/UInt16/UInt32/Int32/Float32/Float64/
>                      CInt16/CInt32/CFloat32/CFloat64}]'
>               [ -tileIndex tileIndexName [-tileIndexField 
> tileIndexFieldName]]
>               [ -csv fileName [-csvDelim delimiter]]
>               [-s_srs srs_def]  [-pyramidOnly]
>               [-r {near/bilinear/cubic/cubicspline}]
>               -levels numberoflevels
>               -targetDir TileDirectory input_files 
> 
> 
> which means that -r determines the resampling method, which could be 
> 
> near
> bilinear
> cubic
> cubicspline 
> 
> and has nothing to do with the data size. At the moment, I have not 
> implemented a parameter to change the color model (perhaps I should). 
> 
> Anyway, there are other possibilities to achieve this. (rgp2pct.py as an 
> example). 
> 
> If you have many tiles, the best idea is to write a little script. If you 
> are working on a linux box I could assist you. 
> 
> If you have many,many tiles, use the --optFile option  described here.
> http://www.gdal.org/gdal_utilities.html 
> 
> If you have problems, send me a mail 
> 
> cheers
> christian 
> 
>  
> 
> acangi writes: 
> 
>> 
>> Hello, 
>> 
>> Trying to execute this command :
>>  
>> gdal_retile.py -targetDir pyramid -levels 4 -v -pyramidOnly -s_srs
>> top50r.prj -ps 4000 4000 -r mode -co "TILED=YES" -co "INTERLEAVE=PIXEL"
>> -co
>> "COMPRESS=LZW" -tileIndex pyramid -tileIndexField location *map.tif 
>> 
>> gives the error "Unknown resampling method : mode", although it works
>> fine
>> in gdaladdo. 
>> 
>> It's gdal 1.6.0 --with-python. The data is colormapped, therefor I want
>> to
>> use mode. I don't want to convert it to RGB first because of the size of
>> the
>> data and I'm not the only one using it. 
>> 
>> Shouldn't the "-r mode" option work in gdal_retile ?
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>> 
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>  
> 
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