Reorient_Trans() returns a transformation (like rotate, etc), which has
to be applied to an object(such as your box). Position your object with
your initial vectors, then call Reorient_Trans() inside the box{}
wrapper.

Martin Thoma wrote:
> 
> Hi Christoph,
> 
> thanx for your answer, but it doesn't work:
> 
>        #declare a1 = <0, 1, 0>;
>        #declare a2 = <xv3-xv1, yv3-yv1, zv3-zv1>;
> 
>         Reorient_Trans(a1, a2);
> 
> Gives me an Error in transforms.inc:
> 
> ...
> File: C:\Programme\POV-Ray for Windows v3.5\INCLUDE\transforms.inc  Line: 84
>         #local vZ2 = vnormalize(vcross(vX2, vY));
> 
>         transform <----ERROR
> 
> Parse Error: Expected 'object or directive', transform found instead
> 
> What am I doing wrong?
> 
> Martin

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