Help rotating part around it's attachment point

[raath]

I'm trying to write a plugin that I can attach to spotlights to enable them to be redirected in EVA.

I've looked on a whole bunch of forums but I can't seem to be able to make it go.

This is the closest I've been able to get it to do what I'd like except that it rotates it around the center of the part not the attachment point, and it seems to pivot on the z axis when I only want to pitch on the X.

	private void panUp ()
	{
		direction += 20;
		update = true;
	}

	private void panDown ()
	{

		direction -= 20;
		update = true;
	}

	public void LateUpdate ()
	{
		if (update == true) {
			//part.transform.Find("model").Rotate(direction,0,0);
			var target = Quaternion.Euler (direction, 0, 0);
			// Dampen towards the target rotation
			part.transform.Find ("model").rotation = Quaternion.Slerp (part.transform.Find ("model").rotation, target,
                                       Time.deltaTime * smooth);
			update = false;
		}
	}

Where am I going wrong?

[EndlessWaves]

That approach assumes it's rotated 0° around the Y and Z axes, you need to use the current rotation for Y and Z when creating your target (transform.localEulerAngles IIRC).

Also, you need to be using localRotation rather than rotation. The latter is positioning in world space so the axes could be pointing in any direction.

As for rotating around the attachment point. That requires movement as well as rotation so just setting the rotation isn't enough, you'd need to use something like transform.RotateAround. I'm not sure whether the attach information is stored in Part though.