evo_traj tum issue

[michaelgrupp]

evo_traj tum issue

[MichaelGrupp]

Looks like a classic "data in the wrong format" issue as this one for example: #55

If you need more help, please upload a reproducible example using the issue template.

[amranov]

Dear Michael , evo_traj work properly when i plot FrameTrajectory_KITTI_Format.txt (ORB_SLAM) output , but here i am trying to plot LearVIORB_SLAM TUM format .
this is error i get after conversting the format into Kitti
root@amrani:~/testResults# evo_traj tum KeyFrameNavStateTrajectory.txt --save_as_kitti
[ERROR] Unhandled error in evo.main_traj
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/evo/entry_points.py", line 94, in launch
main_module.run(args)
File "/usr/local/lib/python2.7/dist-packages/evo/main_traj.py", line 177, in run
trajectories.append((traj_file, file_interface.read_tum_trajectory_file(traj_file)))
File "/usr/local/lib/python2.7/dist-packages/evo/tools/file_interface.py", line 71, in read_tum_trajectory_file
mat = np.array(csv_read_matrix(file_path, delim=" ", comment_str="#")).astype(float)
ValueError: could not convert string to float:

[ERROR] evo module evo.main_traj crashed - no logfile written (disabled)

[MichaelGrupp]

but here i am trying to plot LearVIORB_SLAM TUM format

Whatever that is - it's certainly not the official TUM benchmark format that evo supports.

error i get after conversting the format into Kitti

Your input format for the conversion is still not the correct TUM format, how should this work?

---

Upload something to reproduce, or nobody can help you. Or fix your stuff to write the right format, it's all documented.

[amranov]

Dear michael , sorry for bothering im quite new in this field here my trajectory.txt file
KeyFrameNavStateTrajectory.txt

[MichaelGrupp]

The file has 2 problems:

• trailing space at the end of each line - space is the delimiter of the TUM format and a delimiter without data after it leads to an error
• too many columns, looks like there is some additional data that we don't expect

If you use Linux (probably also works on Mac) you can use cut to create a clean copy with only the first 8 columns:

cut --delimiter " " --fields 1-8 KeyFrameNavStateTrajectory.txt > clean.tum

This file is then valid according to evo_traj tum clean.tum --full_check .

[amranov]

THank you so much
it works properly now

[jingshaojing]

I have try this method, but it doesnot work