[ODE] Rope Simulation using Ray Class

[achaudhry]

hi all, 

while trying to implement rope using ray class, to drop down a rope ( increase
its length) , i tried changing the length of the ray at runtime.

currently my rope is connected between 2 points, one of them is fixed up high
above ground and the other one has something hanging by it, like a pendulum..


so while changing length of the geom at runtime shouldn't the pendulum
gradually drop down, or i need to destroy the joints (connecting the pendulum
rope to the upper point and the lower point)and then recreate the joints..


thanks in advance for the help guys, 

regards
amber