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Hi Jorge and Conrad,
Shouldn’t there be a pipe between las2las and lasnoise? If that were so then las2las would have an output of stdout and lasnoise would have an input of stdin. As the instructions are written you’ve got two distinct lines of code on one line.
las2las -i fusa.laz
-o fusa.las -stdout
-set_version 1.4 -set_point_type 6 | lasnoise
-i fusa.las -stdin -stdout | lasground -stdin -o fusa_ground.las
or on two lines
las2las -i fusa.laz -o fusa.las -set_version 1.4 -set_point_type 6
lasnoise -i fusa.las -stdout | lasground -stdin -o fusa_ground.las
Personally I don’t use pipes, except as redirects of stderr to trap the error text in a file, so I may be way off base; the last thing I want is to create a likely pagefile thrashing situation with two pipes, it would end up taking longer. To me it’s a lot safer to write intermediate files and delete them when done, preferably to a different drive to maximize I/O performance by taking advantage of succinct read/write caches and reducing seek up to the maximum interface speed.
Michael Stimson
Senior GIS Analyst |
From: last...@googlegroups.com <last...@googlegroups.com>
On Behalf Of Jorge Delgado García
Sent: Wednesday, 5 January 2022 8:04 PM
To: last...@googlegroups.com
Subject: Re: [LAStools] Piping Version 1.4 Point Format 6 Files (Native Extension Error)
CAUTION: This email originated from outside of RPS.
To view this discussion on the web visit https://groups.google.com/d/msgid/lastools/CADgtU__yo-k-KA%3DE1xG2Ub3uS6KBfSP8bYgi_VRRH52QjuVpGA%40mail.gmail.com.
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