The name of the spring damper.
If NULL, a default name will be
created.

The type of spring/damper.
See the enum definition.

The joint owning the spring/damper
if the spring/damper type is
UF_MOTION_revolute_spring_damper or
UF_MOTION_slider_spring_damper.

Link one of the spring/damper if
the spring/damper type is
UF_MOTION_link_spring_damper.

The point of the spring/damper
attachment on the first link.
See uf_so.h for smart point creation.
If the spring/damper type is
UF_MOTION_slider_spring_damper or
UF_MOTION_revolute_spring_damper,
this will automatically be set
with the joint origin.

The coordinates of the attachment
point of the spring/damper on the
first link. Not required for creation
or edit. If a smart point is not
provided for point_1, a dumb point will
automatically be created from input
coordinates (not recommended).

Link two of the spring/damper, or
NULL_TAG if ground. This is only
for a spring/damper type of
UF_MOTION_link_spring_damper.

The point of the spring/damper
attachment on the second link,
or the point of attachment to
ground if link_2 is NULL_TAG.
See uf_so.h for smart point creation.
If the spring/damper type is
UF_MOTION_slider_spring_damper,
this will automatically be set
with the joint origin.

The coordinates of the attachment
point of the spring/damper to the
second link, or to ground. Not required
for creation or edit. If a smart
point is not provided for point_2,
a dumb point will automatically be
created from input coordinates
(not recommended).

The spring rate for both rotational
and translational springs.

The reference length of the spring
is used to calculate either the
preload force on the spring or the
free length. This is used for
linear springs.

The reference angle of the spring
at zero displacement. This is used
for rotational springs.

The initial length of the spring at assembly
position; used for spring defined on slide
joint

The linear damping rate of the
damper.