jakubch

Well, interestingly enough, it just gave me that same segmentation fault on Ubuntu 10.04 (after using the "Add object" thing in the menu). Any ideas?

in [open] 2 cameras at once? Comment by jakubch June 2013

Thanks for the answer. I think I will install 10.04 on some machine to be able to test everything properly and perhaps stick with it for the time needed to do the experiments. We're lucky Ubuntu is free and people keep old releases so that at least…

in [open] 2 cameras at once? Comment by jakubch June 2013

Hi there again, I have just stumbled upon something strange. When I change the resolution in the mantrascript.py from 320, 240 to, say, 800, 600, the object definition window won't load and it gives me segmentation fault: Fatal Python error: (pyga…

in [open] 2 cameras at once? Comment by jakubch May 2013

Sebastiaan, I don't know what's changed, but suddenly things are working as they're supposed to. It must have been me :) I'll post an update on our progress with Mantra when we get somewhere. Bye, Jakub

in [open] 2 cameras at once? Comment by jakubch May 2013

I don't know if I understand correctly. Let's see: I ran from libmantra import libmantram = libmantra()print m.sample() from terminal using python interpreter (as suggested by you in Froukehe's tread). If at the same time OpenSesame was running wi…

in [open] 2 cameras at once? Comment by jakubch May 2013

Hi, a small update on our situation, we were testing Mantra in order to see whether we can use it and so far we are quite impressed :) In moderately good lighting conditions, it is very reliable and fast. Log files can be analysed very nicely in Ma…

in [open] 2 cameras at once? Comment by jakubch May 2013

Actually, sometimes it does not hurt to point out the obvious :) We are trying to combine EMG and object tracking here to measure subject's movements, and still working out the details. Having higher frame-rate would solve the precision problem; ho…

in [open] 2 cameras at once? Comment by jakubch April 2013

Thanks for the answers! Could these 2 instances of mantra run on the same computer? And if more than one webcam is plugged into the PC via USB, would I be able to tell to each Mantra instance to receive input from a desired camera? And finally, cou…

in [open] 2 cameras at once? Comment by jakubch April 2013

Hi Edwin! Thanks for the description! I finally got to it. It is not that self-explanatory for me so I'm glad you have been so thorough explaining it. ;-) If I understand correctly, OpenSesame adds 1 to the counter each time inline_script_3 is exe…

in [Solved] Recording randomized order and using it later for presentation Comment by jakubch April 2012

Perfect! Solved. I intent to learn a bit more about Python when I have some time. But if you are not too busy, you could write a few words about how those scripts work - I imagine there is something to establish the new variables, then assigning a v…

in [Solved] Recording randomized order and using it later for presentation Comment by jakubch March 2012

Ok, so it works (using variable "number" to record the order and "stim" to recall it - if I got it right). Now, what if I want to use the previously recorded order again? The intention is: * Presentation phase (where the random …

in [Solved] Recording randomized order and using it later for presentation Comment by jakubch March 2012

Got it, and it does work. Thanks! Let's see if I can find the mistake I made, and more importantly (at the moment) - adapt it for my experiment. I let you know (since I smell some more issues... :) )

in [Solved] Recording randomized order and using it later for presentation Comment by jakubch March 2012

Haha, I can see what you mean. But this wasn't, let's say, a science-strike, it was general strike (Spain). I'm not Spanish but I've been living here for some time now and I decided to join the cause. In fact, it was more like a gesture then anythin…

in [Solved] Recording randomized order and using it later for presentation Comment by jakubch March 2012

Ahh, ok! I was tweaking the resolution inside the GUI to no avail. Now I know why. Thanks!

in [solved] File Pool & Resolution on Linux Comment by jakubch March 2012

Thanks for your reply, Edwin! Well, I have never used an inline_script item before so I look forward to learn something new (when I can get to it - today we are on strike). I'll keep you posted. Jakub

in [Solved] Recording randomized order and using it later for presentation Comment by jakubch March 2012

Yes, you are right. After typing the file suffix in lower case it started to work. Yet something odd happens: While on Windows the sketchpad gets displayed as intended (meaning, one of the 12 bmp 1000x750 images on black background), on Oneiric the…

in [solved] File Pool & Resolution on Linux Comment by jakubch March 2012

Ok, they contain a lot of black background, so that's probably why. There is however one thing I don't understand - when I try to run the same experiment on Oneiric, I get this: Error: Runtime error Description: 'nom8.BMP' could not be found in ske…

in [solved] File Pool & Resolution on Linux Comment by jakubch March 2012

That's pretty intuitive, actually (so intuitive that I haven't thought of it). I'm starting to see the elegance of this program. Thanks a lot!