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Problems saving data #1

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brembs opened this issue May 22, 2013 · 4 comments
Open

Problems saving data #1

brembs opened this issue May 22, 2013 · 4 comments

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@brembs
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brembs commented May 22, 2013

We have occasionally been able to save strokelitude data, but for the most part, the files that strokelitude saves are empty. Apparently, other users also have this problem, as they use ROS to save the data: http://peterthomasweir.blogspot.de/2012/08/setting-up-fview-and-strokelitude.html

We are currently trying to find out where the problem lies and how to fix it.

@astraw
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astraw commented May 28, 2013

( I just replied to a related question on the (new) motmot email list: https://groups.google.com/forum/?fromgroups#!forum/motmot-camera )

Basically the "save data" feature in the strokelitude GUI is not something we use in my lab since we have shifted to use ROS with https://github.com/motmot/strokelitude_ros . We save data now directly to ROS bag files that record everything else about our experiments.

As I wrote in the email, I'm afraid I can't prioritize this because I see the better investment being in getting the trigger device stuff to work within the ROS environment. But if you don't need synchronization with external hardware (just things on your PC), you can already save directly to ROS bag files using "rosbag record". That's what we do.

@brembs
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brembs commented May 28, 2013

( I just replied to a related question on the (new)
motmot email list:
https://groups.google.com/forum/?fromgroups#!forum/motmot-camera)

Sweet, thanks for setting it up! I'll make my student join right away :-)

Basically the "save data" feature in the strokelitude GUI
is not something we use in my lab since we have shifted to
use ROS with https://github.com/motmot/strokelitude_ros.

We did look into that, but are having problems, because we use the latest Ubuntu with ROS groovy and that seems to cause trouble, but I'm not sure if this problem is on our end or not.

If confirm that you have strokelitude running on Ubuntu 13.04 with ROS groovy, could you ask any of the people using it for you, which commands and modules they use? That should get us going just fine.

We will also document everything in detail for other new users.

So many thanks!

Bjoern

@astraw
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astraw commented May 28, 2013

For what it's worth, you can stick with all of our pre-built packages on Ubuntu 12.04 and use ROS Electric. I suspect that will save you a lot of pain.

Use the scripts here: https://github.com/strawlab/ros-electric-install-aws . This is actually a Vagrantfile for installing on Amazon AWS, but you should be able to adapt to local machine very easily.

@brembs
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brembs commented May 28, 2013

I see. This would mean we'd have to downgrade our Ubuntu installation from 13.04, uninstall ROS Groovy, with the risk that some of the other software (MatLab) will cease running after the downgrade.

Looks like a complete re-install of the old versions from scratch is equired. Very frustrating, given there are now 6 weeks of work in this installation. I'll let her know.

Thanks so much!

Bjoern

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