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<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Hi Andrew,<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">Thank you for the heads up, I tried the following pipeline;<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" style="line-height:14.25pt;background:#1E1E1E"><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">{<o:p></o:p></span></p>
<p class="MsoNormal" style="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"> : [<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:14.25pt;background:#1E1E1E"><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> {<o:p></o:p></span></p>
<p class="MsoNormal" style="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">,<o:p></o:p></span></p>
<p class="MsoNormal" style="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><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"><o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:14.25pt;background:#1E1E1E"><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> }, <o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:14.25pt;background:#1E1E1E"><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> {<o:p></o:p></span></p>
<p class="MsoNormal" style="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">,<o:p></o:p></span></p>
<p class="MsoNormal" style="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">,<o:p></o:p></span></p>
<p class="MsoNormal" style="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">,<o:p></o:p></span></p>
<p class="MsoNormal" style="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">,<o:p></o:p></span></p>
<p class="MsoNormal" style="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><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"><o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:14.25pt;background:#1E1E1E"><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> }<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:14.25pt;background:#1E1E1E"><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> ]<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:14.25pt;background:#1E1E1E"><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">}<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">However my output LAZ file still had these bits intact;<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal" style="line-height:14.25pt;background:#1E1E1E"><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">{<o:p></o:p></span></p>
<p class="MsoNormal" style="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">,<o:p></o:p></span></p>
<p class="MsoNormal" style="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">,<o:p></o:p></span></p>
<p class="MsoNormal" style="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">,<o:p></o:p></span></p>
<p class="MsoNormal" style="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">,<o:p></o:p></span></p>
<p class="MsoNormal" style="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">,<o:p></o:p></span></p>
<p class="MsoNormal" style="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">:<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:14.25pt;background:#1E1E1E"><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> {<o:p></o:p></span></p>
<p class="MsoNormal" style="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">:<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:14.25pt;background:#1E1E1E"><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> [<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:14.25pt;background:#1E1E1E"><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> {<o:p></o:p></span></p>
<p class="MsoNormal" style="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">,<o:p></o:p></span></p>
<p class="MsoNormal" style="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">,<o:p></o:p></span></p>
<p class="MsoNormal" style="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">,<o:p></o:p></span></p>
<p class="MsoNormal" style="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">,<o:p></o:p></span></p>
<p class="MsoNormal" style="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">,<o:p></o:p></span></p>
<p class="MsoNormal" style="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">,<o:p></o:p></span></p>
<p class="MsoNormal" style="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">,<o:p></o:p></span></p>
<p class="MsoNormal" style="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">:<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:14.25pt;background:#1E1E1E"><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> [<o:p></o:p></span></p>
<p class="MsoNormal" style="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">,<o:p></o:p></span></p>
<p class="MsoNormal" style="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">,<o:p></o:p></span></p>
<p class="MsoNormal" style="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">,<o:p></o:p></span></p>
<p class="MsoNormal" style="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">,<o:p></o:p></span></p>
<p class="MsoNormal" style="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">,<o:p></o:p></span></p>
<p class="MsoNormal" style="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">,<o:p></o:p></span></p>
<p class="MsoNormal" style="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">,<o:p></o:p></span></p>
<p class="MsoNormal" style="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><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"><o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:14.25pt;background:#1E1E1E"><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> ],<o:p></o:p></span></p>
<p class="MsoNormal" style="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><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"><o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:14.25pt;background:#1E1E1E"><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> }<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:14.25pt;background:#1E1E1E"><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> ]<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:14.25pt;background:#1E1E1E"><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4"> }<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:14.25pt;background:#1E1E1E"><span style="font-size:10.5pt;font-family:Consolas;color:#D4D4D4">}<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Kindest regards Rose <o:p></o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US">______________________________________________________________________________________________________________________________________________________________<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> Andrew Bell <andrew.bell.ia@gmail.com>
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<b>Sent:</b> Tuesday, 3 August 2021 11:00 p.m.<br>
<b>To:</b> Rose Phillips <RPhillips@linz.govt.nz><br>
<b>Cc:</b> pdal@lists.osgeo.org<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"><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 Mon, Aug 2, 2021 at 5:39 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 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"><o:p> </o:p></p>
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<p class="MsoNormal">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"><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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