[pstricks] framing overlapping objects

[Matthias Thomae]

Hi Herbert,

Herbert Voss wrote:
> in this soluztion you only need the maximum of your data and multiply
> it by e.g. with 1.125, inthis case it is 4.5. The legend is put in
> a box, so we can measure the height.
> 
> hope, it helps

It did :)))

I just added an \ifdim for the case that the calculated height is 
smaller than the original pspicture height, and that did the trick.

Thanks a lot for your help, I am delighted :)

Regards.
Matthias