[pdal] Entwine/EPT build failures

[Connor Manning]

If you submit this as an issue on Entwine (
https://github.com/connormanning/entwine/issues) and upload samples of the
problematic files, or email them to me, I will take a look.

- Connor

On Mon, Feb 18, 2019 at 12:20 PM Jean-Roc Morreale (ml) <
jrmorreale_ml at enoreth.net> wrote:

> Hi Andrew, thank you for your reply.
>
> Unfortunatly, our Windows system configuration prevents me to setup a
> msvc build toolchain so I will wait for the next release on this point.
>
> About the LAS missing signature, for now entwine build seems to be the
> only tool blocked by it as I have been using many pdal tools an others
> (lastools, cloudcompare, fme, potreeconverter) in the last past weeks.
> My first reaction was to convert the las files to laz using pdal
> stating minor_version=4 in the hope it would automagically solves it.
>
> regards,
> jean-roc
>
>
> Le lundi 18 février 2019 à 10:04 -0500, Andrew Bell a écrit :
> > The first error (about legacy flags) is due to an issue in the LASzip
> > API code.  You can see this issue
> > https://github.com/PDAL/PDAL/issues/2320 for details.  You can build
> > the 1.8-maintenance branch of PDAL to eliminate the error.
> >
> > The file signature error is what it says.  LAS files have a signature
> > at the beginning of the file.  If the signature isn't found, your LAS
> > file is corrupt.
> >
> > I'm not sure why you'd get a "too many files" open error.  I think
> > this is an issue in entwine.
> >
> > On Mon, Feb 18, 2019 at 9:49 AM jrmorreale_ml at enoreth.net <
> > jrmorreale_ml at enoreth.net> wrote:
> > > Hi,
> > >
> > > I am trying to build an EPT with entwine 2.0 (conda) on a
> > > classified lidar cloud (1220 tiles, 22billion points) but I did not
> > > succeed in getting a usable result.
> > >
> > > The command used is :
> > > entwine build --srs "EPSG:2154" --threads "4" --dataType "laszip"
> > > -i input_dir -o output_dir
> > >
> > > The errors are
> > > * Exception in pool task: writers.las: legacy flags and extended
> > > flags are not identical
> > > * During input_xx.laz: readers.las: File signature is not 'LASF',
> > > is this an LAS/LAZ file?
> > > * Unable to open stream for 'input_xx.laz' with error 'Too many
> > > open files'
> > >
> > > The last error is only shown when trying to work on the 1220 files
> > > at once. The attempts have been made on the original terrascan
> > > tiles and on pdal translated laz tiles, the generated ept-data
> > > output is empty laz files.
> > >
> > > pdal info --all of 1 laz tiles
> > > https://gist.github.com/Jean-Roc/bb045bd1e01edbadf7f49e97df0d2568
> > >
> > > pdal info all on the same tile but on the original las file from
> > > terrascan
> > > https://gist.github.com/Jean-Roc/50145b3b7a0b2b432f0b2956807eb181
> > >
> > > las sample
> > >
> https://dl.lillemetropole.fr/file.php?h=Rc3bb7eeace8c2923b565e2b7ba7f2370
> > >
> > > laz sample
> > >
> https://dl.lillemetropole.fr/file.php?h=R9e3f147ea2f928b9f4437697faad3e51
> > >
> > > log of entwine build on 5 tiles (run 5)
> > > https://gist.github.com/Jean-Roc/ce231d6770fdaafa5bba307d79c0e992
> > >
> > > log of entwine build with on 1220 tiles
> > > https://gist.github.com/Jean-Roc/29fcffa60886168e73d0e7146e897801
> > >
> > > Could you point to the mistake(s) I've made ? My aim is to publish
> > > our data online, the latest usgs example is a great incentive.
> > >
> > > Regards,
> > > Jean-Roc Morreale _______________________________________________
> > > pdal mailing list
> > > pdal at lists.osgeo.org
> > > https://lists.osgeo.org/mailman/listinfo/pdal
> >
> >
>
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