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<p class="MsoNormal"><span style="mso-fareast-language:EN-US">LAZ files with 129 bits are downloadable for free here :-<br>
<br>
aws s3 cp s3://pc-bulk/NZ20_Westport/ . --recursive --endpoint-url <a href="https://opentopography.s3.sdsc.edu">
https://opentopography.s3.sdsc.edu</a> --no-sign-request<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Using the same pipeline as below I was having the same issue with example file from the above bucket CL2_BR20_2020_1000_4134.laz – output file still contained the 129 bit when explicitly filtered
out by writers.las.where statement. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> Andrew Bell <<a href="mailto:andrew.bell.ia@gmail.com">andrew.bell.ia@gmail.com</a>>
<br>
<b>Sent:</b> Wednesday, 4 August 2021 11:57 a.m.<br>
<b>To:</b> Rose Phillips <<a href="mailto:RPhillips@linz.govt.nz">RPhillips@linz.govt.nz</a>><br>
<b>Cc:</b> <a href="mailto:pdal@lists.osgeo.org">pdal@lists.osgeo.org</a><br>
<b>Subject:</b> Re: [pdal] Attempting to filter out (1) Unclassified points flagged as Withheld<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">The pipeline doesn't seem to match the output you show, so it's hard to know what's going on. If you want to share a file I can see what's up.<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 Tue, Aug 3, 2021 at 5:22 PM Rose Phillips <<a href="mailto:RPhillips@linz.govt.nz">RPhillips@linz.govt.nz</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">Hi Andrew,<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Thank you for the heads up, I tried the following pipeline;<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">{</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> </span><span style="font-size:10.5pt;font-family:Consolas;color:#9CDCFE">"pipeline"</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> : [</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> {</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> </span><span style="font-size:10.5pt;font-family:Consolas;color:#9CDCFE">"type"</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> : </span><span style="font-size:10.5pt;font-family:Consolas;color:#CE9178">"readers.las"</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> </span><span style="font-size:10.5pt;font-family:Consolas;color:#9CDCFE">"filename"</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> : </span><span style="font-size:10.5pt;font-family:Consolas;color:#CE9178">"input.las"</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> }, </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> {</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> </span><span style="font-size:10.5pt;font-family:Consolas;color:#9CDCFE">"type"</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> : </span><span style="font-size:10.5pt;font-family:Consolas;color:#CE9178">"writers.las"</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> </span><span style="font-size:10.5pt;font-family:Consolas;color:#9CDCFE">"a_srs"</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> : </span><span style="font-size:10.5pt;font-family:Consolas;color:#CE9178">"EPSG:2193+7839"</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> </span><span style="font-size:10.5pt;font-family:Consolas;color:#9CDCFE">"filesource_id"</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> : </span><span style="font-size:10.5pt;font-family:Consolas;color:#CE9178">"0"</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> </span><span style="font-size:10.5pt;font-family:Consolas;color:#9CDCFE">"filename"</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> : </span><span style="font-size:10.5pt;font-family:Consolas;color:#CE9178">"output.las"</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> </span><span style="font-size:10.5pt;font-family:Consolas;color:#9CDCFE">"where"</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">: </span><span style="font-size:10.5pt;font-family:Consolas;color:#CE9178">"ClassFlags!=129"</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> }</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> ]</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">}</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">However my output LAZ file still had these bits intact;<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">{</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> </span><span style="font-size:10.5pt;font-family:Consolas;color:#9CDCFE">"file_size"</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">: </span><span style="font-size:10.5pt;font-family:Consolas;color:#B5CEA8">3007189</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> </span><span style="font-size:10.5pt;font-family:Consolas;color:#9CDCFE">"filename"</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">: </span><span style="font-size:10.5pt;font-family:Consolas;color:#CE9178">"C:</span><span style="font-size:10.5pt;font-family:Consolas;color:#D7BA7D">\\</span><span style="font-size:10.5pt;font-family:Consolas;color:#CE9178">Temp</span><span style="font-size:10.5pt;font-family:Consolas;color:#D7BA7D">\\</span><span style="font-size:10.5pt;font-family:Consolas;color:#CE9178">scan_angle</span><span style="font-size:10.5pt;font-family:Consolas;color:#D7BA7D">\\</span><span style="font-size:10.5pt;font-family:Consolas;color:#CE9178">test_file</span><span style="font-size:10.5pt;font-family:Consolas;color:#D7BA7D">\\</span><span style="font-size:10.5pt;font-family:Consolas;color:#CE9178">processed</span><span style="font-size:10.5pt;font-family:Consolas;color:#D7BA7D">\\</span><span style="font-size:10.5pt;font-family:Consolas;color:#CE9178">CL2_BW24_2020_1000_4526.laz"</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> </span><span style="font-size:10.5pt;font-family:Consolas;color:#9CDCFE">"now"</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">: </span><span style="font-size:10.5pt;font-family:Consolas;color:#CE9178">"2021-08-04T09:20:17+1200"</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> </span><span style="font-size:10.5pt;font-family:Consolas;color:#9CDCFE">"pdal_version"</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">: </span><span style="font-size:10.5pt;font-family:Consolas;color:#CE9178">"2.3.0 (git-version: Release)"</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> </span><span style="font-size:10.5pt;font-family:Consolas;color:#9CDCFE">"reader"</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">: </span><span style="font-size:10.5pt;font-family:Consolas;color:#CE9178">"readers.las"</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> </span><span style="font-size:10.5pt;font-family:Consolas;color:#9CDCFE">"stats"</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">:</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> {</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> </span><span style="font-size:10.5pt;font-family:Consolas;color:#9CDCFE">"statistic"</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">:</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> [</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> {</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> </span><span style="font-size:10.5pt;font-family:Consolas;color:#9CDCFE">"average"</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">: </span><span style="font-size:10.5pt;font-family:Consolas;color:#B5CEA8">6.704382019</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> </span><span style="font-size:10.5pt;font-family:Consolas;color:#9CDCFE">"count"</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">: </span><span style="font-size:10.5pt;font-family:Consolas;color:#B5CEA8">1307434</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> </span><span style="font-size:10.5pt;font-family:Consolas;color:#9CDCFE">"maximum"</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">: </span><span style="font-size:10.5pt;font-family:Consolas;color:#B5CEA8">129</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> </span><span style="font-size:10.5pt;font-family:Consolas;color:#9CDCFE">"minimum"</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">: </span><span style="font-size:10.5pt;font-family:Consolas;color:#B5CEA8">2</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> </span><span style="font-size:10.5pt;font-family:Consolas;color:#9CDCFE">"name"</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">: </span><span style="font-size:10.5pt;font-family:Consolas;color:#CE9178">"Classification"</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> </span><span style="font-size:10.5pt;font-family:Consolas;color:#9CDCFE">"position"</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">: </span><span style="font-size:10.5pt;font-family:Consolas;color:#B5CEA8">0</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> </span><span style="font-size:10.5pt;font-family:Consolas;color:#9CDCFE">"stddev"</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">: </span><span style="font-size:10.5pt;font-family:Consolas;color:#B5CEA8">21.69585237</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> </span><span style="font-size:10.5pt;font-family:Consolas;color:#9CDCFE">"values"</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">:</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> [</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> </span><span style="font-size:10.5pt;font-family:Consolas;color:#B5CEA8">2</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> </span><span style="font-size:10.5pt;font-family:Consolas;color:#B5CEA8">3</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> </span><span style="font-size:10.5pt;font-family:Consolas;color:#B5CEA8">4</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> </span><span style="font-size:10.5pt;font-family:Consolas;color:#B5CEA8">5</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> </span><span style="font-size:10.5pt;font-family:Consolas;color:#B5CEA8">7</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> </span><span style="font-size:10.5pt;font-family:Consolas;color:#B5CEA8">9</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> </span><span style="font-size:10.5pt;font-family:Consolas;color:#B5CEA8">18</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> </span><span style="font-size:10.5pt;font-family:Consolas;color:#B5CEA8">129</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> ],</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> </span><span style="font-size:10.5pt;font-family:Consolas;color:#9CDCFE">"variance"</span><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">: </span><span style="font-size:10.5pt;font-family:Consolas;color:#B5CEA8">470.7100099</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> }</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> ]</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> }</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:14.25pt;background:#1E1E1E">
<span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">}</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">Kindest regards Rose
</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span lang="EN-US">______________________________________________________________________________________________________________________________________________________________</span></b><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> Andrew Bell <<a href="mailto:andrew.bell.ia@gmail.com" target="_blank">andrew.bell.ia@gmail.com</a>>
<br>
<b>Sent:</b> Tuesday, 3 August 2021 11:00 p.m.<br>
<b>To:</b> Rose Phillips <<a href="mailto:RPhillips@linz.govt.nz" target="_blank">RPhillips@linz.govt.nz</a>><br>
<b>Cc:</b> <a href="mailto:pdal@lists.osgeo.org" target="_blank">pdal@lists.osgeo.org</a><br>
<b>Subject:</b> Re: [pdal] Attempting to filter out (1) Unclassified points flagged as Withheld</span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">On Mon, Aug 2, 2021 at 5:39 PM Rose Phillips <<a href="mailto:RPhillips@linz.govt.nz" target="_blank">RPhillips@linz.govt.nz</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">Hi pdal’ers
<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">These are my attempts to filter out (1) Unclassified Points flagged as withheld in LAS filers for further analyses.<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Any chance you guys can point to where I have gone wrong?<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">pipelines I have tried using pdal 2.3.0: to filter out (1) unclassified points flagged as withheld;<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">1.<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.5pt;font-family:"Segoe UI",sans-serif;color:#C9D1D9"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">{<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> "pipeline" : [<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> {<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> "type" : "readers.las",<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> "filename" : "input.las"<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> },<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> {<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> "type":"filters.range",<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> "limits":"Classification![129:129]"<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> },
<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> {<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> "type" : "writers.las",<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> "a_srs" : "EPSG:2193+7839",<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> "filesource_id" : "0",<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> "filename" : "output.las"<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> }<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> ]<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> }<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I think that this should filter out unclassified withheld points with LAS 1.2 and 1.3. With LAS 1.4, the withheld attribute is stored in the "ClassFlags" dimension, so you'll need
to use boolean logic with that dimension and the "Classification" dimension to do what you want. You might also use pdal info --enumerate to make sure that your data has the values you think it does.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">--
<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Andrew Bell<br>
<a href="mailto:andrew.bell.ia@gmail.com" target="_blank">andrew.bell.ia@gmail.com</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"><span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:black"><br>
This message contains information, which may be in confidence and may be subject to legal privilege. If you are not the intended recipient, you must not peruse, use, disseminate, distribute or copy this message. If you have received this message in error, please
notify us immediately (Phone 0800 665 463 or <a href="mailto:info@linz.govt.nz" target="_blank">
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<p class="MsoNormal"><br clear="all">
<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">-- <o:p></o:p></p>
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<p class="MsoNormal">Andrew Bell<br>
<a href="mailto:andrew.bell.ia@gmail.com" target="_blank">andrew.bell.ia@gmail.com</a><o:p></o:p></p>
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