[pstricks] how to get absolute coordinates

[Franco Bagnoli]

On Fri, 9 Jul 2004, Herbert Voss wrote:

> Franco Bagnoli wrote:
> 
> > A question: 
> > Which information is  associated to a node? I was not able to understand 
> > what GetCenter does. I need the "bounding box" of a frame, and maybe the 
> > node already contains this information.  
> 
> These procedures are always defined at the beginning of pst-node.pro,
> wich is in texmf/dvips/pstricks


I am sorry, but I tried to understand the postscript 
but without comments it is not easy (for instance, I did 
not found which definition of Y is used when invoking GetCenter, and also 
the definition of NodeMtrx is obscure to me). 

I see that there is a GetEdge command (which however does not take the 
same arguments of GetCenter) which could be what I was looking for. How is 
it used? 

-- 
Franco Bagnoli (franchino) <bagnoli at dma.unifi.it> 
virtual location: Dipartimento di Energetica "S. Stecco"
ultra-virtual affiliation: Centro Dinamiche Complesse (CSDC-Firenze)
real location: Dip. Matematica Applicata "G. Sansone", Universita' Firenze,
Via S. Marta, 3 I-50139 Firenze, Italy. Tel. +39 0554796422, fax: +39 055471787