Simply Maya User Community - View Single Post - expression for oscilating movement

Keyframing gives you the best control. You could do it with an expression too but is it really worth it?

Here's one possibility:

Code:

int $iStartOsc = 6;
float $fHeightMult = 3;
int $iStopFrame = 75;

if(frame < $iStartOsc)
	nurbsSphere1.translateY = frame * $fHeightMult;
else
	if(frame < $iStopFrame)
		nurbsSphere1.translateY += $fHeightMult * sin(frame - $iStartOsc) * (($iStopFrame - frame) / $iStopFrame);