[pdal] Trouble reading CyArk .e57 point clouds

[Carl Godkin]

Hi,

I am new to PDAL so I hope this isn't a seriously dumb question.  I looked
in the mailing list archives and under Issues on GitHub so maybe it's not.

CyArk makes their data available in .e57 format and I was hoping to use
PDAL to play with some of them.

However, for both of the .e57 files I've downloaded so far, "pdal info"
says simply

PDAL: readers.e57: 21 : fileName=USP_USS_Pampanito_Complete.e57 offset=0
whence=2 result=-2118361088

and exits.  I tried "pdal translate" also and its verbose flag tells me
that the "libpdal_plugin_reader_e57.dll" is loaded and initialized before
exiting with the same message.

My environment is Windows 10 with PDAL installed following the instructions
under the "Workshop" section on the pdal.io site.  (Using miniconda,
created a virtual environment, installing PDAL, etc.)

pdal --version is "pdal 2.0.1 (git-version: Release)"

These files are really big by the way.  The downloads are .zip files which
expand to 7Gb and up!

I was able to open this file in Cloud Compare so it's not corrupt, and I've
tried another file from their site as well with the same results.

Any ideas?  Thanks a lot!

carl
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