<div dir="ltr">I don't know if this is just an artefact of the email - but :<div><br></div><div><a href="https://s3-us-west-2.amazonaws.com/usgs-lidar-public/USGS_LPC_TN_27County_blk4_2015_LAS_2018/ept.json" target="_blank" style="font-size:16px">https://s3-us-west-2.amazonaws.com/usgs-lidar-public/USGS_LPC_TN_27County_blk4_2015_LAS_2018/ept.json</a><br></div><div><br></div><div>should be:</div><div><br>"<a href="https://s3-us-west-2.amazonaws.com/usgs-lidar-public/USGS_LPC_TN_27County_blk4_2015_LAS_2018/ept.json" target="_blank" style="font-size:16px">https://s3-us-west-2.amazonaws.com/usgs-lidar-public/USGS_LPC_TN_27County_blk4_2015_LAS_2018/ept.json</a>"</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">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:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div class="msg6473062176999150917">
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<p class="MsoNormal"><span style="font-size:12pt">Dear PDA folks,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt">I have an error using readers.ept in a PDAL pipeline. Using instructions on the
<a href="https://pdal.io/en/2.7.2/quickstart.html" 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.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt">When I run “pdal pipeline Plot_176612216020004.json –debug”, I receive this output and error:<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt">“(PDAL Debug) Debugging...<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt">(pdal pipeline readers.ept Debug) PDAL: readers.ept: Could not read from <a href="http://s3-us-west-2.amazonaws.com/usgs-lidar-public/USGS_LPC_TN_27County_blk4_2015_LAS_2018/ept.json" target="_blank">s3-us-west-2.amazonaws.com/usgs-lidar-public/USGS_LPC_TN_27County_blk4_2015_LAS_2018/ept.json</a> “<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt">The contents of Plot_176612216020004.json are:<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt">[<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt"> {<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt"> "tag": "ept_reader",<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt"> "type": "readers.ept",<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt"> "bounds": "([ -9423306.45485711 , -9421847.59871605 ],[ 4175665.92739632 , 4177131.3660114 ])",<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt"> "filename": <a href="https://s3-us-west-2.amazonaws.com/usgs-lidar-public/USGS_LPC_TN_27County_blk4_2015_LAS_2018/ept.json" target="_blank">
https://s3-us-west-2.amazonaws.com/usgs-lidar-public/USGS_LPC_TN_27County_blk4_2015_LAS_2018/ept.json</a>,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt"> "resolution": "0.01",<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt"> "threads": "4"<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt"> },<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt"> {<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt"> "tag": "las_writer",<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt"> "type": "writers.las",<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt"> "filename": "USGS_LPC_TN_27County_blk4_2015_LAS_2018_176612216020004.laz",<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt"> "compression": "laszip",<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt"> "extra_dims": "all",<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt"> "forward": "header, vlr",<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt"> "offset_x": "auto",<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt"> "offset_y": "auto",<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt"> "offset_z": "auto",<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt"> "scale_x": "0.01",<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt"> "scale_y": "0.01",<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt"> "scale_z": "0.01"<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt"> }<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt">]<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt">I can access the etp.json file listed under filename using my browser and also using a curl command from the conda prompt.
<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt">I have also tried the Iowa example from this tutorial and receive the same “Could not read from ….” error.
<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt">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).
<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt">Thank you,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt">Scott</span><u></u><u></u></p>
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