TYPE: POP
TITLE: Speed Limit POP

The Speed Limit POP can be used to set minimum and maximum speed limits.
Each particle can have its own set of imposed limits. If the limit values
are negative, then no restrictions are imposed on the particle's speed.
This POP will only set the speedlimit attributes on the particle. The
limits are not imposed until the particle is moved during post frame 
processing. The POP will add the attribute if it doesn't exist already.

This POP modifies the following attributes: speedlimit.

Parameters:
    Activation          - Turns the POP on and off	/activate
    Source Group        - Subset of points to act on
    SpeedLimit          - Min/max speed		/speedlimitmin /speedlimitmax

Local Variables 
    Overview - The standard local variables are usable in this POP.  Please
	       refer to the Houdini manual for more details.
