#### RIGID_BODY_INERTIA

###### Rigid bodies
*RIGID_BODY_INERTIA
pid, $m$, $x_c$, $y_c$, $z_c$, $I_{11}$, $I_{22}$, $I_{33}$
$I_{12}$, $I_{23}$, $I_{31}$
##### Parameter definition
VariableDescription
pid Rigid body part ID
$m$ Rigid body mass
$x_c$, $y_c$, $z_c$ Center of gravity
$I_{11}$, $I_{22}$, $I_{33}$ Moment of inertia (diagonal terms)
$I_{12}$, $I_{23}$, $I_{31}$ Moment of inertia (off-diagonal terms)
##### Description

This command allows the user to define the mass, center of gravity and moment of intertia of a rigid body.