Search found 23 matches

by Uli_v
05 Apr 2019, 21:38
Forum: Bug reports
Topic: V-REP crash (running several instances of V-REP with several remote API clients)
Replies: 8
Views: 628

V-REP crash (running several instances of V-REP with several remote API clients)

Any idea where I would need to look at to fix the problem? Is there a threading issue? Is it the remoteAPI? It seems to happen only if I run several instances of V-REP with several instances of remote API clients (python). I am running V3.5.0. *** buffer overflow detected ***: /home/uli/Software/V-R...
by Uli_v
21 Mar 2019, 16:35
Forum: Bug reports
Topic: Depth Sensor Seeing Through Walls
Replies: 4
Views: 1171

Re: Depth Sensor Seeing Through Walls

I just found that I have the same issue with looking through objects. I agree with davicarnauba84. In the real world, if an object is too close to the depth sensor, then the depth readings become 0 (at least for the Intel Realsense SR300). The problem is that the shapes are not solid (they are meshe...
by Uli_v
19 Mar 2019, 17:36
Forum: General questions
Topic: Shape simplification to speed up collision checking recommended?
Replies: 7
Views: 376

Re: Shape simplification to speed up collision checking recommended?

Thanks, that allows me to export the simplified shape. When I try to import the shape with sim.importShape then it seems that the orientation is not as the original exported shape. Do you have any idea how to fix this? I noticed that in some cases the orientation is correct, but sometimes I have to ...
by Uli_v
15 Mar 2019, 20:12
Forum: General questions
Topic: Shape simplification to speed up collision checking recommended?
Replies: 7
Views: 376

Re: Shape simplification to speed up collision checking recommended?

Hi, Thanks, that was helpful. I am trying to export the simplified mesh, but I get an error when using; formatId = simAssimp.getExportFormat(4) simAssimp.exportMeshes(allVertices,allIndices,"simple.stl",formatId) Error message: argument 1&2: expected non-empty tables. (simAssimp.exportMeshes @ 'Assi...
by Uli_v
13 Mar 2019, 19:23
Forum: General questions
Topic: Shape simplification to speed up collision checking recommended?
Replies: 7
Views: 376

Re: Shape simplification to speed up collision checking recommended?

Hi, Thanks for the reply. Could you post a short LUA script example (or even a example scene) that would accomplish that for a single object/mesh? If I know the object handle of the mesh I want to simplify, then how to I use that with sim.getDecimatedMesh and sim.getQHull. It seems that these functi...
by Uli_v
12 Mar 2019, 21:24
Forum: General questions
Topic: Shape simplification to speed up collision checking recommended?
Replies: 7
Views: 376

Shape simplification to speed up collision checking recommended?

Hi,

I was wondering, if I simplify the shapes (e.g. generate the convex hull) of imported meshes, would this speed up the collision checking? If yes, would it be worth it (what would be the factor of speedup)? I guess it depends on the number and complexity of the shapes. Thanks.

Best,
Uli
by Uli_v
12 Mar 2019, 21:19
Forum: General questions
Topic: OMPL - how to use a PRM
Replies: 4
Views: 329

Re: OMPL - how to use a PRM

I also tried to do a query via PRM after building a roadmap. There seem to be missing implementation/bug in the OMPL-plugin, see my post here: viewtopic.php?f=5&t=7707&p=30124&hilit=PRM#p30124
by Uli_v
29 Jan 2019, 17:50
Forum: Bug reports
Topic: OMPL plugin bug for multi query (e.g. PRM)
Replies: 1
Views: 230

OMPL plugin bug for multi query (e.g. PRM)

Hi, For multiquery I had to clear the solutions from a previous query, or otherwise it returns the solution for previous start config if previous solution is better (lower cost). I also had to add PRMstar ( || task->algorithm == sim_ompl_algorithm_PRMstar). See function below: void setStartState(SSc...
by Uli_v
29 Jan 2019, 16:49
Forum: Bug reports
Topic: OMPL planner creates only a small number of states in roadmap/graph
Replies: 3
Views: 377

Re: OMPL planner creates only a small number of states in roadmap/graph

Thanks for the help with the eigen3 issue. OMPL plugin with OMPL 1.4.2 is compiling now. But I needed to change the lines to compile (e.g. add "Release" in the path, and use unly a single "." at the end). See below export CXXFLAGS=-isystem\ /usr/include/eigen3/ #or wherever it is located cmake -DOMP...
by Uli_v
29 Jan 2019, 16:20
Forum: Bug reports
Topic: OMPL planner creates only a small number of states in roadmap/graph
Replies: 3
Views: 377

Re: OMPL planner creates only a small number of states in roadmap/graph

Remember to fix the following issue related to OMPL when updating V-REP with the newest OMPL version: http://www.forum.coppeliarobotics.com/viewtopic.php?f=5&t=7642&p=29929#p29929 Could you also add support for SO2 and SO3 in the plugin? Similar to this issue: http://www.forum.coppeliarobotics.com/v...