Hi , i was able to orient my robot to the angle i specify in the supervisor using my slope value but when it comes to the robot controller how can i direct it...
Hi, I am currently using the Webots 4. However, I have found that i couldn't disable the pen once writing is enabled. What could be the source of this problem?...
hi everyone i am having trouble with the supervisor_field_get and set functions. briefly i have code to do the following: i have a function to check if robot...
Hi, You can do the set thingy whenever you want, however the get can only be called once. This call will return an array and this array is updated every...
thanks Harm, i've re-jigged things around now and have fixed it. i was getting a bit confused in my own loop within the webots controller loop. cheers stevie...
Hi!, I'm trying to build an image with the 'camera_image_get_c' macros but always get a striped image, I mean: valid line white line valid line white line ... ...
Hello Oliver, I am trying to implement the effect of omni-directional camera for the Khepera in webots. So far broadening the fieldview to 2 or 3 meters with ...
Abdulrahman Altahhan
abed.tahhan@...
Apr 4, 2006 6:44 pm
1335
Hi again, I am still having trouble using two synchronous controllers, at one point one of the controllers seem to dive in a webots command and never returns....
Never mind I figured it out. The problem was that I was using different time step sizes in my controller than the time step size as defined in the wbt file....
Hello Again, I am trying to implement the effect of omni-directional camera for the Khepera in Webots. So far broadening the fieldview to 2 or 3 meters with ...
Abdulrahman Altahhan
abed.tahhan@...
Apr 5, 2006 6:03 pm
1341
I'm using this code to read a servo velocity: note: servo[0] is the name of my servo, obtained by servo[0] = robot_get_device... [reset section] float...
Hi I had some experiments in modeling a robot which follows the circumference of a ball with Webots. Please explain your work with more details, if possible...
hi all i have some problems synchronising my supervisor and robot controllers. i am running a GA within the robot controller itself. the robot starts with a...
Hi, Actually, I think you must use several cameras. I would say at least 3 of 120 degrees each. This paper might be interesting if you want to develop an...
Hi, i am trying to direct my robot initially to towards the goal. i've set the goal coords to (0,0) so that i f i considr a straight line then the slope wud be...
Ok Thanks for that, It would be much appreciated... Abdulrahman. Olivier Michel wrote: Hi, Actually, I think you must use several cameras. I would say at least...
Abdulrahman Altahhan
abed.tahhan@...
Apr 6, 2006 5:44 pm
1347
i created a solid node, a red ball. robot must go where is the ball but robot doesn't find it. where is the problem? my red ball ... solid node...
I'm using this code to read a servo velocity: note: servo[0] is the name of my servo, obtained by servo[0] = robot_get_device... servo[0] works: it's correctly...
Hi Stevie, This is a standard process synchronization problem and can be addressed through a semaphore system. The more portable way to do it is probably to...
does pen write only on the ground (and only if there is a texture on the ground)? is it possible use pen to "write" in the 3d space, so to draw the robot...
I have this program that handles two differntial_wheels-type robots, a leader (blue) and a follower (yellow). For some reason, after the robots have made a...
Actually, it's not "complete revolution" so much as "reach angle 0". For the blue robot - the leader - the angle goes from -0.079488 to -0.069831 (which is...
in you cpp code you wrote: supervisor_field_get(robot[i], SUPERVISOR_FIELD_TRANSLATION_X| SUPERVISOR_FIELD_TRANSLATION_Z| SUPERVISOR_FIELD_ROTATION_ANGLE, ...
A question: ... float dir; //rotation angle from the second to first robot float x = x1 - x2; float z = z1 - z2; dir = mod_pi(acos(x/(sqrt(x*x + z*z))) +...
Because the trigonometric funtion acos can give the same result for different values. The cosine of, say 0.1 radians is the same as the cosine of pi-0.1...
When I try to modify the angle by hand, the whole thing goes crazy. I keep increasing the angle, causing the robot to rotate clockwise...Then, once I get past...
Is there documentation explaining exactly what happens when "play" is pressed in the simulator in terms of a java controller? Controllers are required to be ...
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