**SPOINT****SPOINT**, `NODE`

,
`X`

, `Y`

, `Z`

,
`InertiaKey`

**Defines a point for force/moment summations or inertia calculation**

`NODE`

Node number of the desired point. If zero, use `X`

,`Y`

,`Z`

to describe point.

`X`

, `Y`

, `Z`

Global Cartesian coordinates of the desired summation point.
Used if `NODE`

is 0. Defaults to (0,0,0).

`InertiaKey`

Inertia key:

**OFF**
| — | Point or node is used for the force/moment summations (default). |

**ON**
| — | Point or node is used for the calculation of total inertia. |

## Command Default

No point is defined by default; you must either specify a node or coordinates.

## Notes

By default (`InertiaKey`

=
OFF), defines a point (any point other than the origin) about which the tabular moment
summations are computed. If force summations are desired in other than the global Cartesian
directions, a node number must be specified on the `NODE`

field,
*and* the desired coordinate system must be activated with
**RSYS**. The command must be issued in the **/POST1**
module.

When the inertia key is activated
(`InertiaKey`

= ON), the total inertia printed in the precise mass
summary is calculated with respect to the point or node in the global Cartesian system. In this
case, the command must be issued during the first load step in the **/SOLU**
module.