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<p class="MsoNormal"><span style="font-size:12.0pt">Hi Paul,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">The URL is quoted in my input JSON file. In the email message, Microsoft Outlook converted the URL text to a link and dropped the quotes. Here’s a snippet from the JSON with quotation marks preserved:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:#4472C4">{<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:#4472C4"> "tag": "ept_reader",<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:#4472C4"> "type": "readers.ept",<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:#4472C4"> "bounds": "([ -9423306.45485711 , -9421847.59871605 ],[ 4175665.92739632 , 4177131.3660114 ])",<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:#4472C4"> "filename": “https://s3-us-west-2.amazonaws.com/usgs-lidar-public/USGS_LPC_TN_27County_blk4_2015_LAS_2018/ept.json”,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:#4472C4"> "resolution": "0.01",<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:#4472C4"> "threads": "4"<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:#4472C4"> }<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">Scott<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b>From:</b> Paul Harwood <runette@gmail.com> <br>
<b>Sent:</b> Saturday, July 6, 2024 5:10 AM<br>
<b>To:</b> Pearson, Scott <pearsonsm@ornl.gov><br>
<b>Cc:</b> pdal@lists.osgeo.org<br>
<b>Subject:</b> [EXTERNAL] Re: [pdal] reader.ept error - Could read from<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I don't know if this is just an artefact of the email - but :<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><a href="https://urldefense.us/v2/url?u=https-3A__s3-2Dus-2Dwest-2D2.amazonaws.com_usgs-2Dlidar-2Dpublic_USGS-5FLPC-5FTN-5F27County-5Fblk4-5F2015-5FLAS-5F2018_ept.json&d=DwMFaQ&c=v4IIwRuZAmwupIjowmMWUmLasxPEgYsgNI-O7C4ViYc&r=HORY163nBbFgyWK0c3Xwo0vnkU1QghnN6V30DBX36lU&m=OdmAeyhN4J3b_xFt4WhzHNuQCyNq824pbGFV3UroI6V5tWNz16wjdyIBWpc7MUa1&s=DppyiaHKZxe-lcRF1sMm-tzX3QvrM6XUlmHN-QZEGYo&e=" target="_blank"><span style="font-size:12.0pt">https://s3-us-west-2.amazonaws.com/usgs-lidar-public/USGS_LPC_TN_27County_blk4_2015_LAS_2018/ept.json</span></a><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">should be:<o:p></o:p></p>
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"<a href="https://urldefense.us/v2/url?u=https-3A__s3-2Dus-2Dwest-2D2.amazonaws.com_usgs-2Dlidar-2Dpublic_USGS-5FLPC-5FTN-5F27County-5Fblk4-5F2015-5FLAS-5F2018_ept.json&d=DwMFaQ&c=v4IIwRuZAmwupIjowmMWUmLasxPEgYsgNI-O7C4ViYc&r=HORY163nBbFgyWK0c3Xwo0vnkU1QghnN6V30DBX36lU&m=OdmAeyhN4J3b_xFt4WhzHNuQCyNq824pbGFV3UroI6V5tWNz16wjdyIBWpc7MUa1&s=DppyiaHKZxe-lcRF1sMm-tzX3QvrM6XUlmHN-QZEGYo&e=" target="_blank"><span style="font-size:12.0pt">https://s3-us-west-2.amazonaws.com/usgs-lidar-public/USGS_LPC_TN_27County_blk4_2015_LAS_2018/ept.json</span></a>"<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Fri, 5 Jul 2024 at 17:24, Pearson, Scott via pdal <<a href="mailto:pdal@lists.osgeo.org">pdal@lists.osgeo.org</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt">Dear PDAL folks,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt"> I have an error using readers.ept in a PDAL pipeline. Using instructions on the
<a href="https://urldefense.us/v2/url?u=https-3A__pdal.io_en_2.7.2_quickstart.html&d=DwMFaQ&c=v4IIwRuZAmwupIjowmMWUmLasxPEgYsgNI-O7C4ViYc&r=HORY163nBbFgyWK0c3Xwo0vnkU1QghnN6V30DBX36lU&m=OdmAeyhN4J3b_xFt4WhzHNuQCyNq824pbGFV3UroI6V5tWNz16wjdyIBWpc7MUa1&s=su9lNnhWcUnIS-p1ASVmGNvlVbDN_kimfMgeqAjZdLE&e=" target="_blank">
Quickstart page</a>, PDAL (v. 2.7.2) is installed using miniconda (conda v. 24.5.0) and applied updates were applied to conda and pdal installations. The “pdal info autzen.laz -p 0” command works, so I’ve assume that the PDAL install was successful.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt"> When I run “pdal pipeline Plot_176612216020004.json –debug”, I receive this output and error:</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt">“(PDAL Debug) Debugging...</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt">(pdal pipeline readers.ept Debug) PDAL: readers.ept: Could not read from
<a href="https://urldefense.us/v2/url?u=http-3A__s3-2Dus-2Dwest-2D2.amazonaws.com_usgs-2Dlidar-2Dpublic_USGS-5FLPC-5FTN-5F27County-5Fblk4-5F2015-5FLAS-5F2018_ept.json&d=DwMFaQ&c=v4IIwRuZAmwupIjowmMWUmLasxPEgYsgNI-O7C4ViYc&r=HORY163nBbFgyWK0c3Xwo0vnkU1QghnN6V30DBX36lU&m=OdmAeyhN4J3b_xFt4WhzHNuQCyNq824pbGFV3UroI6V5tWNz16wjdyIBWpc7MUa1&s=grZ4fqpuKLbRQaHxZRQsSUZEWar0gYK3B0ovPUvWjCc&e=" target="_blank">
s3-us-west-2.amazonaws.com/usgs-lidar-public/USGS_LPC_TN_27County_blk4_2015_LAS_2018/ept.json</a> “</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt"> The contents of Plot_176612216020004.json are:</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt">[</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt"> {</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt"> "tag": "ept_reader",</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt"> "type": "readers.ept",</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt"> "bounds": "([ -9423306.45485711 , -9421847.59871605 ],[ 4175665.92739632 , 4177131.3660114 ])",</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt"> "filename": “https://s3-us-west-2.amazonaws.com/usgs-lidar-public/USGS_LPC_TN_27County_blk4_2015_LAS_2018/ept.json”,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt"> "resolution": "0.01",</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt"> "threads": "4"</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt"> },</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt"> {</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt"> "tag": "las_writer",</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt"> "type": "writers.las",</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt"> "filename": "USGS_LPC_TN_27County_blk4_2015_LAS_2018_176612216020004.laz",</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt"> "compression": "laszip",</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt"> "extra_dims": "all",</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt"> "forward": "header, vlr",</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt"> "offset_x": "auto",</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt"> "offset_y": "auto",</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt"> "offset_z": "auto",</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt"> "scale_x": "0.01",</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt"> "scale_y": "0.01",</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt"> "scale_z": "0.01"</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt"> }</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt">]</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt">I can access the etp.json file listed under filename using my browser and also using a curl command from the conda prompt.
</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt">I have also tried the Iowa example from this tutorial and receive the same “Could not read from ….” error.
</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt"> Any suggestions for solving this problem? My overall goal is to download lidar point clouds for a set of 200 field plots (3 ha each).
</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt"> Thank you,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:12.0pt">Scott</span><o:p></o:p></p>
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