Search found 7080 matches

by coppelia
16 Apr 2019, 06:37
Forum: General questions
Topic: Wheels are rotating but the robot is not moving
Replies: 1
Views: 55

Re: Wheels are rotating but the robot is not moving

Hello,

your dropbox link is invalid.

Cheers
by coppelia
16 Apr 2019, 06:36
Forum: General questions
Topic: Motion planning RRTConnect: Unable to sample any valid states for goal tree
Replies: 1
Views: 89

Re: Motion planning RRTConnect: Unable to sample any valid states for goal tree

Hello, it is difficult to say what is going on, and we can't debug such a long code. Maybe try with a simpler example first. Make sure that the robot is not colliding in the goal configuration and/or that the goal pose is actually reachable. If your robot suddenly moves without explicit motion comma...
by coppelia
16 Apr 2019, 06:30
Forum: General questions
Topic: V-REP 3.6.1 on non-Ubuntu Linux
Replies: 3
Views: 147

Re: V-REP 3.6.1 on non-Ubuntu Linux

Hello, the launch script will add the current path to LD_LIBRARY_PATH , so that the system searches first in the V-REP folder for required libraries. It is not the most elegant way (rpath is an alternative) but quite robust. To see what libs are required by a specific lib (e.g. libv_rep.so), you can...
by coppelia
15 Apr 2019, 14:55
Forum: General questions
Topic: how to import mesh (one with obj, mtl and png files) using lua API
Replies: 10
Views: 455

Re: how to import mesh (one with obj, mtl and png files) using lua API

hum... then there must be a bug somewhere...
In the mean time you can simply convert your file into a different format. The other format will hopefully not cause problems.

Cheers
by coppelia
15 Apr 2019, 14:54
Forum: General questions
Topic: Exporting meshes in V-REP
Replies: 3
Views: 110

Re: Exporting meshes in V-REP

You will have to decompose composite shapes first. Then the items should be exported as separate entities.

Cheers
by coppelia
12 Apr 2019, 06:06
Forum: General questions
Topic: Use of scene from Ubuntu 16.04 in Ubuntu 18.04
Replies: 4
Views: 325

Re: Use of scene from Ubuntu 16.04 in Ubuntu 18.04

Hello,

indeed, there is a problem with the Newton plugin compiled for Ubuntu18. This has been fixed now. Thanks for mentioning this!

Cheers
by coppelia
11 Apr 2019, 12:58
Forum: General questions
Topic: Modelling a sliding rail
Replies: 1
Views: 79

Re: Modelling a sliding rail

Hello,

make sure to first have a look at the various tutorials. You will get a better idea of what is to be done.

Cheers
by coppelia
11 Apr 2019, 12:57
Forum: General questions
Topic: Use of scene from Ubuntu 16.04 in Ubuntu 18.04
Replies: 4
Views: 325

Re: Use of scene from Ubuntu 16.04 in Ubuntu 18.04

Hello,

make sure you have activated the Vortex license in both cases. Also, make sure to use the last V-REP release.

Cheers
by coppelia
11 Apr 2019, 12:55
Forum: General questions
Topic: import stl file physics
Replies: 1
Views: 87

Re: import stl file physics

Hello,

make sure to carefully read this page, mainly design considerations 1-10. Then also have a look at this tutorial. In V-REP, you can extract the convex hull of a shape, or get its convex decomposition ([menu bar--> Add --> ...])

Cheers
by coppelia
11 Apr 2019, 12:51
Forum: General questions
Topic: Shape angular position and velocity
Replies: 1
Views: 97

Re: Shape angular position and velocity

Hello, best would be to extract for each simulation step a rotation vector and a rotation velocity. You can do this my getting the object's matrix in each simulation step ( sim.getObjectMatrix ), then finding the rotation axis and angle with sim.getRotationMatrix and differentiating the angle. Cheers