Search found 5677 matches

by coppelia
13 Mar 2024, 07:28
Forum: General questions
Topic: Designing an Omnidirectional Mobile Robot: Confusion Arising from KUKA Omnirob Model
Replies: 8
Views: 159

Re: Designing an Omnidirectional Mobile Robot: Confusion Arising from KUKA Omnirob Model

A random mesh never performs well when a physics engine simulates it in collision response. The reason is that in order to be able to compute precise collision response forces, a penetration depth needs to be calculated between the two colliding objects. With random shapes, there is no such penetrat...
by coppelia
13 Mar 2024, 07:22
Forum: General questions
Topic: Simulation freezes in Stepping Mode
Replies: 5
Views: 42625

Re: Simulation freezes in Stepping Mode

Aidewen wrote: 12 Mar 2024, 16:44 Unfortunately, I am not able to upgrade to a higher edition as the current code I am working with requires a previous version.
...
Can you tell us what exactly is not compatible, so that we can improve on this?

Cheers
by coppelia
12 Mar 2024, 16:33
Forum: Bug reports
Topic: connect python to the simulator's remote API
Replies: 2
Views: 59

Re: connect python to the simulator's remote API

Hello,

make sure to use the newest CoppeliaSim version (i.e. V4.6) and the ZeroMQ remote API (instead of the legacy remote API, which is deprecated)

Cheers
by coppelia
12 Mar 2024, 16:31
Forum: Bug reports
Topic: MuJoCo Cable model not working
Replies: 4
Views: 80

Re: MuJoCo Cable model not working

Hello,

can you give a link to the scene file?

Cheers
by coppelia
12 Mar 2024, 16:28
Forum: General questions
Topic: Simulation freezes in Stepping Mode
Replies: 5
Views: 42625

Re: Simulation freezes in Stepping Mode

Hello,

make sure to use the latest CoppeliaSim, since CoppeliaSim V4.6 features a much improved Python support.

Cheers
by coppelia
12 Mar 2024, 16:25
Forum: General questions
Topic: Why the Revolute joint break when the acceleration happens to the child object of the joint?
Replies: 6
Views: 31410

Re: Why the Revolute joint break when the acceleration happens to the child object of the joint?

Yes, that is correct, only MuJoCo and the newer Bullet engines have ideal joints (but not the Bullet engines in CoppeliaSim as for now)

Cheers
by coppelia
12 Mar 2024, 16:22
Forum: General questions
Topic: Automatic Lawn Mower
Replies: 1
Views: 57

Re: Automatic Lawn Mower

Hello,

maybe have a look at the demo scene scenes/mobileRobotVisualTraces-lua.ttt

Cheers
by coppelia
12 Mar 2024, 16:21
Forum: General questions
Topic: Designing an Omnidirectional Mobile Robot: Confusion Arising from KUKA Omnirob Model
Replies: 8
Views: 159

Re: Designing an Omnidirectional Mobile Robot: Confusion Arising from KUKA Omnirob Model

The reason is following: A real-world mobile robot (or a real-world chassis, beam, etc.) always has some compliance. Additionally, a real-world vehicle often has some suspension or tires. With a physics engine, the compliance does not exist, or is very very small and due to numerical imprecisions, e...
by coppelia
12 Mar 2024, 16:14
Forum: General questions
Topic: finding center of mass and parameter's assigning
Replies: 2
Views: 68

Re: finding center of mass and parameter's assigning

You can find all physics engine related properties for shapes when you click engine properties in this dialog.

Cheers
by coppelia
06 Mar 2024, 08:25
Forum: General questions
Topic: simulation of a generic lidar sensor
Replies: 8
Views: 1707

Re: simulation of a generic lidar sensor

The velodyne model basically operates in a very similar manner as a simpler laser range finder: the range finder uses a vision sensor instead of a proximity sensor to do distance detections, mainly because of speed concerns. With a vision sensor you can acquire a depth map at once. Using the depth m...