Search found 31 matches

by George Mastorakis
Tue Aug 08, 2017 7:17 am
Forum: OpenSim
Topic: Coordinate values - clamp to bounds
Replies: 1
Views: 264

Coordinate values - clamp to bounds

Hi

I have noticed that values several coordinate values can go beyond the specified bounds. This is when using the full body model. Please see attached image. How can I fix this please?

Thanks

George
by George Mastorakis
Mon May 15, 2017 3:36 am
Forum: OpenSim
Topic: Ground alignment between mocap and simulation
Replies: 2
Views: 184

Re: Ground alignment between mocap and simulation

Excellent! Thank you!
by George Mastorakis
Fri May 12, 2017 1:45 pm
Forum: OpenSim
Topic: Ground alignment between mocap and simulation
Replies: 2
Views: 184

Ground alignment between mocap and simulation

Hi,

I have loaded a FullbodyModel using mocap data, but it seems that there is a misalignment between the mocap ground height and the OpenSim ground height as seen in the attached image.
photo1.png
photo1.png (19.09 KiB) Viewed 184 times
Any reason why this is happening?

Thanks
by George Mastorakis
Thu May 11, 2017 12:49 pm
Forum: OpenSim
Topic: Adding a platform on full body model
Replies: 4
Views: 693

Re: Adding a platform on full body model

Thanks Tom

It seems that I had to add a HuntCrossleyForce variable to make the contact forces visible - on the platform and the human model.

It seems that the issue if resolved, but I will provide an update.
by George Mastorakis
Thu May 11, 2017 1:21 am
Forum: OpenSim
Topic: Adding a platform on full body model
Replies: 4
Views: 693

Re: Adding a platform on full body model

Great thanks! You are right about using the "Simulation-Based Design to Prevent Ankle Injuries" since I would like to have contact forces with the platform. Will I have contact forces etc for the model as well as with the platform if I use the proposed solution with VisibleObject? Thanks in advance....
by George Mastorakis
Wed May 10, 2017 2:50 pm
Forum: OpenSim
Topic: Adding a platform on full body model
Replies: 4
Views: 693

Adding a platform on full body model

Hi

I'm trying to add a couple of platforms on the FullBodyModel. It seems that the platforms are visually missing although they appear on the Navigator. I attach the .osim file if you like to have a look. Apologies for the zip file but there is a size restriction on uploads.

Thanks

George
by George Mastorakis
Tue May 02, 2017 5:02 am
Forum: OpenSim
Topic: step_interval info in PointKinematics, BodyKinematics etc
Replies: 7
Views: 755

Re: step_interval info in PointKinematics, BodyKinematics etc

This is also an option. Thanks for pointing it out.
by George Mastorakis
Mon May 01, 2017 9:56 am
Forum: OpenSim
Topic: step_interval info in PointKinematics, BodyKinematics etc
Replies: 7
Views: 755

Re: step_interval info in PointKinematics, BodyKinematics etc

Apologies but it doesn't seem to work. There is no visible correlation between the Integrator Settings values and the nRows found in the resulting .sto files. Is there anything missing please?
by George Mastorakis
Fri Apr 28, 2017 6:31 am
Forum: OpenSim
Topic: step_interval info in PointKinematics, BodyKinematics etc
Replies: 7
Views: 755

Re: step_interval info in PointKinematics, BodyKinematics etc

Hi Tom

Thanks for this. Is there a way to fixate the number of steps per second of the simulation please?

E.g. 1000steps/sec for A simulation, or 2000steps/sec for B simulation

George
by George Mastorakis
Thu Apr 27, 2017 1:40 pm
Forum: OpenSim
Topic: step_interval info in PointKinematics, BodyKinematics etc
Replies: 7
Views: 755

step_interval info in PointKinematics, BodyKinematics etc

Hi

I'm trying to figure out what the step_interval (found in Analyses - PointKinematics, BodyKinematics etc.) is in terms of time. How is it defined?
E.g. When I run a 1 sec simulation with step_interval=1 I'll get 1859 steps/samples. How is this number declared please?

Thanks

George