[OSGeo-Discuss] Can someone test a program with point clouds?

Pierre Abbat phma at bezitopo.org
Fri Apr 17 13:26:41 PDT 2020

On Friday, April 17, 2020 2:57:13 PM EDT Rajat Shinde wrote:
> Hi Pierre,
> I would be very happy to do it. My PhD thesis involves LiDAR Point Cloud
> processing and these days I am fully covered up with LAS/LAZ files. Though,
> I have not used PerfectTIN till now, but I can see the earlier releases
> available at https://github.com/OSGeo/perfecttin/releases.
> Please suggest me on how to proceed.

Thanks! Here are the steps:

Clone the repo (the latest commit should be on 2020-04-07 or later).

Check out 0.3.3 and run it on some point clouds, looking for some where the 
TIN has big spikes (most likely in holes).

Check out later commits and run them on the same clouds. The spikes should 
become smaller in horizontal area (they may be less than a millimeter thick) 
and then disappear. Thin spikes may appear in places they weren't before (I've 
seen them in falsely rough asphalt that is an artifact of photogrammetric 
processing of pine needle shadows), but should disappear by the latest commit.

Also, would you like to contribute a translation?

gau do li'i co'e kei do

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