How to set camera lookAt?

[ramzes0071]

Hi,
I'm writing to you because I don't know how to set camera.lookAt property on my object3D. I have route composed of several parts. Each is object3d.
My routelooks like this

http://drspikecook.com/files/2012/02/istock_winding_road-1jdvrl0.jpg

Each part is responsible for part of the route. If is no longer visible is move at the end of route. So how to set lookAt to this route.

[EgonOlsen]

Not trivial...are these road parts rotated in the direction in which the road points or is that rotation baked into the geometry itself.

[ramzes0071]

Road parts are rotated in the right direction.

[EgonOlsen]

In that case, you migh tbe able to combine the transformed center of each part in combination with the result one of the get?Axis()-methods in Object3D and some crude interpolation to something that works well enough.