Page Comparison

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For joint nodes, there are two similar options: Toggle Child Frame and Toggle Parent Frame. As with the Show Axes option for a body node, the Toggle Child Frame and the Toggle Parent Frame options are toggle buttons, as their names indicate, accessible via the right mouse button. You click the option to turn it on and click it again to turn it off. The two frames (child and parent) are associated with the two bodies of the joint connects.

The coordinate axes for both body and joint nodes appear as a set of three orthogonal lines, colored yellowred (x-axis), green , and red(y-axis), blue (z-axis). 

Enabling and Disabling Muscle and Constraint Nodes

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Nodes corresponding to individual bodies have another option to toggle the display of the center of mass. Turning this toggle menu choice on will cause the Center-of-mass of the corresponding body to be displayed as a solid green sphere Similar option is available for the node corresponding to the Body-Set, in this case the System's Center of mass is displayed as a blue checkered ball as shown below.Displaying the model's center of mass:
Image Removed. You can view the entire system's center of mass by clicking the right mouse button on the Bodies node and selecting Show Mass Center; this is visualized as a larger green sphere.

This screenshot shows the body center of mass for the model's right ulna (on the left in the image), and the system's center of mass (larger green sphere).

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