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<p class="MsoNormal">Good morning once again PDAL’ers. It’s a new day, and a new issue…<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I’m running a multi-step process using several executions of “pdal translate” and at the end assembling the various parts ( multiple LAS files ) from these executions into a final point cloud ( LAS file ) for delivery. All of the “pdal
translate” commands include the string : --writers.las.forward="all" in order to preserve the precision of the source data.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">My problem is that at the final step where I use “pdal pipeline” to merge the various parts, my file precision gets truncated from 0.001 to 0.01 units.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Below is a simple minimalist sample JSON file that I am running through “pdal pipeline” to do the merge operation. I have checked and all the input LAS files have 0.001 precision but the output LAS has only 0.01 precision. I expected
the forward=all line to preserve scales and offsets.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Please help. What am I missing?<o:p></o:p></p>
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<p class="MsoNormal">{<o:p></o:p></p>
<p class="MsoNormal"> "pipeline":[<o:p></o:p></p>
<p class="MsoNormal"> {<o:p></o:p></p>
<p class="MsoNormal"> "type":"readers.las",<o:p></o:p></p>
<p class="MsoNormal"> "tag":"WT_4447_596_step01b",<o:p></o:p></p>
<p class="MsoNormal"> "filename":"WT_4447_596_step01b.las"<o:p></o:p></p>
<p class="MsoNormal"> },<o:p></o:p></p>
<p class="MsoNormal"> {<o:p></o:p></p>
<p class="MsoNormal"> "type":"readers.las",<o:p></o:p></p>
<p class="MsoNormal"> "tag":"WT_4447_596_step02",<o:p></o:p></p>
<p class="MsoNormal"> "filename":"WT_4447_596_step02.las"<o:p></o:p></p>
<p class="MsoNormal"> },<o:p></o:p></p>
<p class="MsoNormal"> {<o:p></o:p></p>
<p class="MsoNormal"> "type":"writers.las",<o:p></o:p></p>
<p class="MsoNormal"> "inputs":["WT_4447_596_step01b","WT_4447_596_step02"],<o:p></o:p></p>
<p class="MsoNormal"> "forward":"all",<o:p></o:p></p>
<p class="MsoNormal"> "filename":"WT_4447_596_step03.las"<o:p></o:p></p>
<p class="MsoNormal"> }<o:p></o:p></p>
<p class="MsoNormal"> ]<o:p></o:p></p>
<p class="MsoNormal">}<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Karl<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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