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Eval point cloud

Eric E Palmer edited this page Oct 23, 2026 · 1 revision

Describe Eval-point-cloud here.

AltWG (Hari) created a java app as part of the AltWG software distribution that is designed to take a point cloud of vectors and compare it to a truth OBJ. The arguments appear to be the same as the standard CompareOBJ commonly used.

How to Generate

  • Create the point cloud file . cp MAPINFO.TXT t . sed -i .orig 's/>//g' t . sort -n -k 11 t > t2 . cut -c 1-6 t2 > t3 . sed -i .orig 's/$/.LMK/' t3 . num=wc t3 | cut -c 1-8 . max=echo -1 \* $num \* .8 | bc . head $max t3 > t4 . cd LMKFILES . grep VLM cat ../t4 | cut -c 15-74 > ../ptCloud.txt . sed -i .org 's/D/E/g' ../ptCloud.txt

  • Run ComparePointCloud . cd ~/Dropbox/SPC-ORex/eval_tools/altwg-2016.01.25-macosx-x64/bin . ComparePointCloudToOBJ ptCloud1.txt truth3.4.obj

 ComparePointCloudToOBJ ptCloud1.txt truth3.4.obj 
Input Point Cloud: ptCloud1.txt
Reference Shape Model: truth3.4.obj
Options: None
Translation: 0.0 0.0 0.0
Rotation Euler angles in degrees (XYZ): -0.0 0.0 -0.0
Center of rotation: 0.0 0.0 0.0
Mean Distance:             5.1879136665910816E-5
Mean Square Distance:      4.284127489515702E-9
Root Mean Square Distance: 6.545324659263055E-5

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