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How to get TouchSensor nested under joint in Webots (Python API)


How to get TouchSensor nested under joint in Webots (Python API)

By : Rajeev Jaiswal
Date : October 25 2020, 07:10 PM
will help you Found the problem, I should have used getTouchSensor instead of getDevice!!
Now it works fine.
code :


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Joint nested list in Python

Joint nested list in Python


By : user7419443
Date : March 29 2020, 07:55 AM
Does that help How to convert a nested list like below? , Lots of ways to do this, but one way is with chain
code :
from itertools import chain
[list(chain(*x)) for x in d]
[['a', 'b', 'c'], ['d', 'e', 'f']]
Webots displaying processed numpy image (OpenCV Python)

Webots displaying processed numpy image (OpenCV Python)


By : Patel
Date : March 29 2020, 07:55 AM
help you fix your problem I figured out an "official way" to get this up and running. However, I do not like this solution as it is not integrated directly into the simulator (and the simulations become too slow when used with this method). For now, I am accepting this answer. However, I will accept any other answer that integrates neatly into Webots.
code :
cv2.startWindowThread()
cv2.namedWindow("preview")

while (robot.step(timestep) != -1):
    cv2.imshow("preview", image)
    cv2.waitKey(TIME_STEP)
Webots - Avoid "joint" objects getting inside one another (i.e. how to enable collision for objects in hinge j

Webots - Avoid "joint" objects getting inside one another (i.e. how to enable collision for objects in hinge j


By : user3516432
Date : March 29 2020, 07:55 AM
wish helps you You are probably looking for the 'selfCollision' field of the Robot device (which is False by default) if you set this field to True the robot will be able to self-collide.
But be careful as stated in the doc this has an impact on the simulation speed:
How to import Webots controller in a Ros-python script

How to import Webots controller in a Ros-python script


By : user3683329
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , It seems your LD_LIBRARY_PATH is wrong, /snap/webots/current/usr/share/webots/lib should be replaced by /snap/webots/current/usr/share/webots/lib/controller.
Webots Programming with python

Webots Programming with python


By : Grzegorz2047
Date : March 29 2020, 07:55 AM
hop of those help? The complete Python API of the Webots controller module is described in the sections of this chapter: https://www.cyberbotics.com/doc/reference/nodes-and-api-functions For example: https://www.cyberbotics.com/doc/reference/accelerometer?tab=python#wb_accelerometer_enable
In Webots, the Python API is exactly the same as the C++ oriented-object API, and the link with the C API is one-to-one too. So "translating" a Webots controller written in C / C++ to Python is often straight forward.
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