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<p class="MsoNormal"><span style="font-size:10.0pt; font-family:"Arial","sans-serif"; color:#3C3C3C">Hello everyone,</span></p>
<p class="MsoNormal"><span style="font-size:10.0pt; font-family:"Arial","sans-serif"; color:#3C3C3C"> </span></p>
<p class="MsoNormal"><span style="font-size:10.0pt; font-family:"Arial","sans-serif"; color:#3C3C3C">I have two questions that you might be able to help me with.</span></p>
<p class="MsoNormal"><span style="font-size:10.0pt; font-family:"Arial","sans-serif"; color:#3C3C3C"> </span></p>
<p class="MsoNormal"><span style="font-size:10.0pt; font-family:"Arial","sans-serif"; color:#3C3C3C">1) I am using PDAL pcpipeline to upload some data into Postgres. In the pcpipeline I have specified to split the data into the patches of 400 points. From the
demonstration example I understand that the patches will not be overlapping but when I look at the extents of patches (and the points themselves) they appear to be overlapping. I have attached the pipeline xml I am using. Am I missing some trick here?</span></p>
<p class="MsoNormal"><span style="font-size:10.0pt; font-family:"Arial","sans-serif"; color:#3C3C3C"> </span></p>
<p class="MsoNormal"><span style="font-size:10.0pt; font-family:"Arial","sans-serif"; color:#3C3C3C">One of the possible reason I could think of could be, specifying less than total number of file points in the “cache_block_size” option. But I am making sure
that I am specifying more points than in the entire file so that the entire file could be cached for patching. Has anyone come across this before?</span></p>
<p class="MsoNormal"><span style="font-size:10.0pt; font-family:"Arial","sans-serif"; color:#3C3C3C"> </span></p>
<p class="MsoNormal"><span style="font-size:10.0pt; font-family:"Arial","sans-serif"; color:#3C3C3C">2) Another thing I was wondering is that, in PDAL you have one filter called “filters.hexabin” which is supposed draw an outline around the patch. At the moment
the only way I could get the patch extent out, is to write out an xml file. Is there any way to write that extent into PostGIS directly next to the patch?</span></p>
<p class="MsoNormal"><span style="font-size:10.0pt; font-family:"Arial","sans-serif"; color:#3C3C3C"> </span></p>
<p class="MsoNormal"><span style="font-size:10.0pt; font-family:"Arial","sans-serif"; color:#3C3C3C">Just a note, in case you are specifying pre_sql/post_sql inside your pipeline, specifying the SQL statement inside the pipeline xml file didn’t work for me
so I had to write SQL statement in some other file and put the location of that sql file in there and it worked.</span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt; font-family:"Arial","sans-serif"; color:#3C3C3C">Thanks in advance for your help.</span></p>
<p class="MsoNormal"><span style="font-size:10.0pt; font-family:"Arial","sans-serif"; color:#3C3C3C"> </span></p>
<p class="MsoNormal"><span style="font-size:10.0pt; font-family:"Arial","sans-serif"; color:#3C3C3C">Regards,</span></p>
<p class="MsoNormal"><span style="font-size:10.0pt; font-family:"Arial","sans-serif"; color:#3C3C3C">Nilesh</span></p>
<p class="MsoNormal"><span style="font-size:10.0pt; font-family:"Arial","sans-serif"; color:#3C3C3C"> </span></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt; font-family:"Arial","sans-serif"; color:#3C3C3C">Nilesh Vyavahare</span></b><span style="font-size:10.0pt; font-family:"Arial","sans-serif"; color:#3C3C3C"><br>
Senior GIS Analyst, SeaZone<br>
<br>
E: <a href="mailto:nilesh.vyavahare@seazone.com"><span style="color:black">nilesh.vyavahare@seazone.com</span></a><br>
T: +44 (0)1491 822861</span></p>
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