Good afternoon, I'm trying to use the image provided by the camera and, after applying some filters, show the results (using the Display). The problem is that...
Hi, Effectively, the Display can be slow. Contrary to the Camera image which is shared both by the controller and by Webots, the Display image is sent from the...
Hi Hugo, First of all, I apologize for this very late answer. I already observed the problem you mentionned. In fact, it's due to a Webots bug about the final...
On second thought, it'd be intersting to improve the camera image transfer efficiency by adding a specialized function. Check the next change log(s) :-) Best...
Hi Yvan, I have upgraded to 6.1.1 and now it seems it doesn't freeze... However, my controller that was working perfectly with the previous version it doesn't...
Hi, I'm trying to use emitters and receivers to pass messages between robots, especifically I want one robot to send its GPS coords to the other robot. The...
Yvan, The controller crashes in the following line: while wb_receiver_get_queue_length(receiver) > 0 The receiver device has been enabled. So any ideas why it...
Hello Noelia, I'm trying to use emitters and receivers to pass messages between robots, ... Yes this is quite tricky, because you have to make sure that both...
Hi Yvan, That's great. Unfortunately, my MATLAB controller crashes at the first line of the receiving code: while (wb_receiver_get_queue_length(receiver)>0) ...
Hello Noelia, In my opinion the wb_receiver_get_queue_length() function can only crash if you use and invalid tag as argument. Actually most Webots functions...
I had a similar problem, in which code seemed to be executed but the print wasn't displayed on the console. Doing a robot_step after the last print command...
Hi Yvan, I do not change the receiver tag or do anything with/to it. I have submitted the bug report already. Thanks a lot for your help. Please let me know if...
Dear Kayode, We recently introduced a new device in Webots which is called "Display". This device is actually designed to provide a small screen to a robot and...
I don't know if that fixed it for Hugo but I have a similar problem migrating to Webots 6 in c++. If I use :- left->setVelocity (1.5); right->setVelocity (2); ...
Here is (attached) what Fabien told me. Cheers, Hugo Costelha ... Hi, thank you for your sample, I reproduced the bug. It is due to a collision between the...
Hi Colin, ... INFINITY should not be defined in c++. Check with what is linked with your controller. As Hugo said, INFINITY is defined for example in <cfloat>....
Hi, I'm trying to send GPS data from one robot to another but the first reading it sends it is always wrong. I have tried a few ways to avoid this but the...
Hello Noelia, Do you mean: 1: the first gps reading (wb_gps_get_values()) is wrong ? 2: or the first data received by wb_receiver_get_data() is wrong ? In case...
Hello I'm going to use a set of functions of previous version of NaoQi for walking Nao Robot in webots. as far as I know Webots already have a controller for...
Mahdi, Sounds like you are asking a question about how to write NaoQi code. You should ask that on the Aldebaran robotics forum... However, I know a little...
Mike, Thank you for your comments. well, actually the reason that I have not working with final version of NaoQi is because I don't know how I can include...
I think you've got a confusion about how to use the nao_in_webots module. I had the same confusion; Aldebaran does not make it clear. Aldebaran wrote a...
It depends on what the commands are. If I want to move the head 180 degrees, it will take much longer than if I want to move it 10 degrees. I don’t know...
Hello everyone, i am trying to make a controller in java, and amongst other things, i want my nodes to transmit and receive different kind of packets. What i...
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