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For Center of rotation, the location of the load is taken as the center of rotation as defined in the parent Rigid Domain node.
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For Centroid of selected entities select an Entity level — Boundary, Edge, or Point. The available choices depend on physics interface and geometrical dimension. The force acts at the centroid of the selected entities, which do not need to be related to rigid domain itself. As a special case, you can select a single point, and thus place the force at that point
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Once chosen, a default Location: Boundary, Location: Edge, or Location: Point subnode is automatically added.
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For Space-fixed direction, the directions of the applied force F are fixed with respect to the selected Coordinate system.
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For Body-fixed direction, the directions of the applied force F follow the rotation of the rigid domain.
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