# ImposedMotion Command
This command is used to construct an ImposedMotionSP constraint which is used to enforce the response of a dof at a node in the model. The response enforced at the node at any give time is obtained from the GroundMotion object associated with the constraint.
```tcl imposedMotion $nodeTag $dirn $gMotionTag ```
|
tag of node on which constraint is to be placed |
|
dof of enforced response. Valid range is from 1 through ndf at node. |
|
pre-defined GroundMotion object tag |
Code Developed by: fmk