Wasn't it Stephen in Calgary who wrote:
>I have been working with PovRay for a bit now and have come to a point where
>I may be spinning my wheels because I hope there is a easy way to accomplish
>the following that I cannot figure out for myself.
>
>I have an 3D object where the sides are angled to each other and then it is
>rotated on a couple of axes. Right next to it, I want to place another
>similar object, like bricks stacked in a crooked or non-linear wall. I can't
>figure out the coordinates or normal of the side of the first object so I
>can place the second object immediately ajacent.
>
>Please tell me there are some simple routines to provide this alignment.

It sounds like you may need to look up "trace()".

-- 
Mike Williams
Gentleman of Leisure

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