Search found 9 matches

by DavBuss
12 Sep 2019, 14:55
Forum: Bug reports
Topic: simROS.getTime() returns incoherent values
Replies: 6
Views: 209

Re: simROS.getTime() returns incoherent values

libv_repExtRosInterface.so is bundled with at least the Pro-Edu Linux version of V-REP. However I don't know on which version of ROS they are linked against.
by DavBuss
12 Sep 2019, 13:34
Forum: Bug reports
Topic: simROS.getTime() returns incoherent values
Replies: 6
Views: 209

Re: simROS.getTime() returns incoherent values

So, I built v_repExtRosInterface from source (on v3.5.0), and now it works!

Just to know, is there a pre-compiled version of V-REP that is linked against ros kinetic?
by DavBuss
12 Sep 2019, 11:05
Forum: Bug reports
Topic: simROS.getTime() returns incoherent values
Replies: 6
Views: 209

Re: simROS.getTime() returns incoherent values

I use the Lua library bundled with V-REP I downloaded here : http://www.coppeliarobotics.com/files/V ... nux.tar.gz

I suppose it is double precision float, since single-precision float cannot store precisely "3624673344.0000324" (it would gives something like "3624673280.0")
by DavBuss
12 Sep 2019, 08:29
Forum: Bug reports
Topic: simROS.getTime() returns incoherent values
Replies: 6
Views: 209

simROS.getTime() returns incoherent values

Hello all, When I call simROS.getTime(), I get incoherent values, that goes back and forth and are very different from the values I get with the rest of my ROS components: > simROS.getTime() 406881952.0000326 > simROS.getTime() 406216352.0000326 > simROS.getTime() 407266656.0000326 > simROS.getTime(...
by DavBuss
19 Feb 2019, 11:34
Forum: General questions
Topic: Smooth floor
Replies: 2
Views: 600

Re: Smooth floor

Hi Luberdis,

In case you haven't tried this yet, you could maybe use a Plane?
You will find it in add->primitive shape->Plane

cheers,
D
by DavBuss
19 Feb 2019, 10:57
Forum: General questions
Topic: Publish a single joint_state ROS topic for a set of selected joints
Replies: 1
Views: 404

Publish a single joint_state ROS topic for a set of selected joints

Hi everyone! I would like to publish a single joint_state ROS topic for a set of selected joints, i.e. have vrep publish a single topic which accounts for the joint states of all the joints which are part of a selected set of joints within the scene (not all the joints of the scene). I manage : 1) t...
by DavBuss
11 Dec 2018, 09:16
Forum: General questions
Topic: Consistently simulating a full scissor parallel system driven by a single joint
Replies: 4
Views: 938

Re: Consistently simulating a full scissor parallel system driven by a single joint

Hello, Thanks for your reply! I am actually trying to design a mock scene where the real robot can be seamlessly interchanged by this simulation (using ROS), and therefore need to produce inputs (like the piston velocity command one) that are as close as possible from the real ones. I am therefore b...
by DavBuss
10 Dec 2018, 11:13
Forum: General questions
Topic: Consistently simulating a full scissor parallel system driven by a single joint
Replies: 4
Views: 938

Re: Consistently simulating a full scissor parallel system driven by a single joint

I actually realised that the problem was coming from the only actuated joint of the scene : the jack. I mean to control the velocity of this actuator. So I set the properties of the attached joint to : -motor enabled (ON) -target velocity = something small (e.g. 0.01m/s) -maximum force = 1e+10 N (I ...
by DavBuss
07 Dec 2018, 17:17
Forum: General questions
Topic: Consistently simulating a full scissor parallel system driven by a single joint
Replies: 4
Views: 938

Consistently simulating a full scissor parallel system driven by a single joint

Hi everyone, I am trying to simulate a single-jack-actuated scissor elevator system, which is a parallel system. The real system, just as the one I try to simulate, only has one actuated (prismatic) joint (the jack) and all others are passive. To build the structure, I joined dynamic pure shapes (I ...