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Centroid is an option for Body that specifies the location of the centroid of a body.
Centroid[bnum] returns a point object corresponding to the centroid of body bnum.

• The centroid of each body is initially located at the local origin of the body, unless otherwise specified.
• The default setting Centroid->Automatic leaves the current centroid location unchanged.
• See also:
Inertia, Mass, SetBodies.

Further Examples

Load the Modeler2D package and define a simple model.

Here is the centroid of the link body, with the mass matrix and the centrifugal force vector. The mass matrix is constant and the centrifugal forces are zero--not functions of the orientation or angular velocity of the body--because the centroid is at the local origin.

If we move the centroid, the mass matrix and centrifugal forces are affected.

See HelpModel2D.

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