[JAVA3D] Interactive animation

[Java TLG]

Hi,   I am new to Java3d. I am moving an 3D object(Cone) using Alpha and KBRotPosScaleSplinePathInterpolator classes, but i would like to obtain the position of the object in the path at any perticular time so that i can activate some event (like displaying an text etc. at that point of time).   Thanks. Anindita.