How to make changes in a particular body and where to find the properties in opensim creator

[UNNI-SANKAR]

In OpenSim Creator 0.5.13 version i am facing the following issues

1. After adding a component like the pathspring, I am not able to edit its properties (like stiffness) again which makes it difficult for re - editing. The only way for me is to use the undo option again and again to create the component from the beginning
2. Where do i find the mass and material properties and how do i change it.
3. How do i change the units ( SI to cgs ) etc.

[adamkewley]

1. I had difficulty reproducing your issue in 0.5.13. The following procedure worked for me:

   • Create the PathSpring
   • Select it (click it in the 3D viewport or Navigator panel)
   • Edit the stiffness property in the Properties window
   • The path spring now has a new stiffness
   • You may have other issues in your model that are preventing the property update. Check the Log panel for any error messages coming out of OpenSim. Otherwise, you might need to explain what you're doing in more detail for me to help.

2. The mass of each body in the model can be seen+changed by selecting a body in the model (usually, these are stored in the bodyset collection). Once you select a body, the Properties window in the model editor will show you the current mass of the body, which can then be edited.

3. OpenSim does not include unit support. The presumed units of each quantity may be listed under the length_units and force_units properties of your top-level model (click the top-level model node in the navigator or bottom status bar, view in the Properties window). The quantities you get out of the physics engine, simulator, etc. are equivalent to what you put in (e.g. if you do everything in grams, micronewtons, millimeters, then the engine will produce quantities with those units).