[pdal] large .las files change wheigth

[Cesar Ortega]

Many thanks Andrew. I´ll investigate this option and tell you the result.

El mié., 26 ago. 2020 a las 14:14, Andrew Bell (<andrew.bell.ia at gmail.com>)
escribió:

> I suspect you are writing the output file with a different point data
> format (dataformat_id option) than the input file. PDAL uses PDRF 3 by
> default, but you can set the value as you wish or forward the value from
> the input. Please see the documentation:
> https://pdal.io/stages/writers.las.html
>
> On Wed, Aug 26, 2020 at 3:57 AM Cesar Ortega <cesar.ortega.chies at gmail.com>
> wrote:
>
>> Dear sirs.
>> The last days, we made a little pipeline to change some metadata from one
>> 17gb .las file.
>> It worked correctly, but the file now occupies 12 gb. It seems the file
>> has all the points, returns, intensity.., but weighs much less.
>>
>> We tried it with more files (2gb,30gg, 5gb...) and always weights much
>> less after the pipeline.
>>
>> The pipeline is very simple, only modifies the day of year and saves the
>> result with another name.
>>
>> Could someone tell us why it happens, and if it has any effect on the
>> quality of the file result?
>>
>> Many thanks
>> _______________________________________________
>> pdal mailing list
>> pdal at lists.osgeo.org
>> https://lists.osgeo.org/mailman/listinfo/pdal
>
>
>
> --
> Andrew Bell
> andrew.bell.ia at gmail.com
>
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