9.0

192 RIGID BODIES
DYNAMICS
DYNAMICS
RIGID BODIES 193
Attribute manager settings
While the RBS Draw Tool is
selected, a number of options
will be available in the Attribute
manager.
While the RBS Draw Tool is selected, a number of options will be available in the
Attribute manager, including the ability to snap to points.
Auto Correct Equal Names
This option is enabled by default. If you draw a spring between two rigid bodies with
the option enabled, the names of the rigid bodies will be changed automatically to
ensure they are unique within the scope of the solver. For example, assuming there are
three rigid bodies in the solver all named Cube, when you draw a spring between two
of the bodies, they will be renamed Cube.1 and Cube.2. This automatic renaming is
advisable so that, when you later use the Rigid Springs dialog, it will be clear to which
objects each spring is attached.
Multiple Spring Check
When enabled, this option will prevent you from creating a spring where a spring
already exists between the two points.
Add RDB Tag Automatically, Rigid Body Mass
If this option is enabled when you draw a spring, Rigid Body Dynamic tags will be
assigned to the two objects that the spring is being attached to. The mass dened
under Rigid Body Mass will be assigned to the tags. The tags will not be created if
the objects already have Rigid Body Dynamic tags assigned.
Snap to Points
Enable this option if you want the cursor to snap to object points while you are
drawing the spring. If the option is disabled, the spring will snap to the mass centre
of the objects instead.
Calculate Rest Length
If Calculate Rest Length is enabled while you are drawing a spring, the Rest Length
of the spring will be set to the distance between its two attachment points. In other
words, the spring will be at rest between the two points, hence the spring will exert
no force.