Webots is an open-source development environment used to model, program and simulate mobile robots.
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Questions tagged [webots]
217 questions
2
votes
0 answers
Steering angle exceeds the value specified
I have simulated a robot in Webots. The robot has one active castor wheel. The castor wheel has two motors one for steering and one for linear velocity. I am using Webots ROS control which gives everything in the form of ROS services.
For…
Tahir Mahmood
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2
votes
1 answer
How to edit the nodes of the built-in robot
I found that in the latest version of webots (2019a), it is not possible to edit the model tree nodes of the built-in robots. They seem to be encapsulated and there are no Children nodes. I hope to learn modeling with examples of built-in robots,…
Alan Liu
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2
votes
1 answer
Changing origin of the floor
Is it possible to change the origin of a floor from center to say left upper corner in Webots?
For exmaple the size of then rectangular arena is 20x20 and I want to set its origin from 0,0 to 10,10
Tahir Mahmood
- 307
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2
votes
1 answer
How to obtain the global position of Transfom Node nested inside a Proto
Dear Webots community,
I'm currently trying to obtain the global position of a Transform (An attached part of a robot's body).
I now that the supervisor_API gives the possibility to get the position of a node.
However, as stated in in the…
Jan-Felix Klein
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2
votes
1 answer
How to program a controller using python3
Does webots support python3? If yes, how can I change the interpreter?
I need to use python3 in order to load other packages that I need, ros, pandas, numpy.
Francesco Z
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2
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0 answers
Robot fails to move in the Webots environment
I am trying to teleoperate a robot which is a forklift. The details of the robot are as follows:
Weight 700KG
1 actively steered caster wheel and 2 passively steered rear wheels
2 passive standard wheels at forks (these 2 break sometimes after…
Tahir Mahmood
- 307
- 1
- 8
2
votes
1 answer
Remote object creation in Webots
I have a robot that is remotely controlled by ROS (python) in Webots (it is using ros_automobile controller). All I want to do right now is to create (render) object remotely given location and orientation of object in my python code. For example,…
kurshakuz
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2
votes
1 answer
How to synchronize Webots Time with ROS time?
I'm currently trying to synchronize the ROS time with Webots. What I'm expecting:
The ROS time is fully depends on the Webots time. If the simulation starts running slowly, the ROS time should slow down as well, if I run webots in fast mode (>…
Jan-Felix Klein
- 119
- 5
2
votes
1 answer
Structure of proto projects
I have multiple Webots projects which are managed in each git repository.
How can I import the projects into git submodules so that I can put different types of robots into a project?
The projects have the following structure:
robotA repo
…
Inbae Jeong
- 3,823
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2
votes
0 answers
Ploting an image with 'imshow' of opencv in webots
hi I am using opencv in webots and I want to plot an image . This is the controller:
#include
#include "opencv2/core/core.hpp"
#include "opencv2/highgui/highgui.hpp"
#include "opencv2/imgproc/imgproc.hpp"
#include…
S.kh
- 45
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2
votes
1 answer
Webots R2019 OSM importer only generating trees
The Webots R2019 OSM importer tool is only generating trees in the World (.wbt) files, as shown in this example:
python ~/webots/resources/osm_importer/importer.py --input=map.osm --output=map.wbt
* OSM filed parsed
* 0 roads generated
* 0…
K Caldas
- 45
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2
votes
1 answer
Turning robot precisely
I want to control a robot having differential wheels. Is it possible to turn a robot in certain degrees without encoders? How can I turn robot precisely in webots in certain degrees? For example 90 degrees or 20 degrees.
Arun K S
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2
votes
1 answer
Webots R2019 OSM importer with 3D enabled
I'm trying to use the Python OSM importer from Webots R2019 to generate a world file with elevation information, using Geonames, but I'm getting the following error:
python ~/osm_importer/importer.py --input test.osm --output=map.wbt…
K Caldas
- 45
- 3
2
votes
1 answer
color field of ElevationGrid
I'm trying to convert a 3d point cloud to an ElevationGrid node.
Each point of the cloud has a color, so I thought that I could use color and colorPerVertex fields of ElevationGrid, but I don't think Webots renders the colors.
What am I missing?
The…
Inbae Jeong
- 3,823
- 23
- 36
2
votes
0 answers
Cross compiling a Webots controller
I'm trying to use MinGW to cross compile from Linux to Windows a robotic controller (.exe) for Webots (simulation software).
Webots supplies a Makefile.include file common to all platforms, that prepares the building environment for compilation…
joaocandre
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