Model Poses and center of mass

Provide easy-to-use, extensible software for modeling, simulating, controlling, and analyzing the neuromusculoskeletal system.
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Juan Leon
Posts: 9
Joined: Wed May 23, 2012 3:55 pm

Model Poses and center of mass

Post by Juan Leon » Thu Jun 21, 2012 2:44 pm

I'm trying to figure out the best way to do this, so maybe someone can point me in the right direction. I've gone through the examples already, so I know how to perform a simulation and my own analysis, but what I want to try to do right now seems a bit different. Basically, I would like to be able to change the pose of the model, by changing the angles in the coordinate window, and while I do that I would like to view how the center of mass of the model changes in real time as I change the pose. What I really want is to see if the character is balanced, so some way of viewing the projection of the COM onto the floor is what I would ideally want. I know I can calculate the center of mass, just not sure if I can do it dynamically in the way I just mentioned. Like I said, any help pointing me in the right direction would be appreciated. Thanks.

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Chris Bates
Posts: 15
Joined: Fri Feb 24, 2012 11:50 am

Re: Model Poses and center of mass

Post by Chris Bates » Tue Jun 26, 2012 9:14 am

In the Navigator window, open your model, right click on Bodies, check Show Mass Center. This will give you a green and black ball at the COM for the model that moves as you change coordinates. It won't project it to the floor, but still gives you a good idea of where it is if you change the viewpoints. To find where it actually is in relation to the model you could create a marker, move it to the COM and display the coordinates of it in relation to any body.

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