[pstricks] Aesthetics with arrows

[Juergen Gilg]

Dear list,

please see the following example:

\documentclass{article}
\usepackage{pstricks,pstricks-add}
\usepackage{esvect}
\parindent=0pt
\begin{document}
\begin{pspicture}(-0.5,-0.5)(6,3)%\psgrid
\psset{arrowscale=1.5}
\cnode(0,0){0cm}{O}
\cnode(4,0){0cm}{A}
\cnode(6,2){0cm}{B}
\cnode(2,2){0cm}{C}
\ncline{->}{O}{B}
\nbput[nrot=:U]{$\vv{b}+\vv{a}$}
\naput[nrot=:U]{$\vv{a}+\vv{b}$}
\ncline{->}{O}{A}
\nbput{$\vv{b}$}
\ncline{->}{O}{C}
\naput{$\vv{a}$}
\ncline{->}{A}{B}
\nbput{$\vv{a}$}
\ncline{->}{C}{B}
\naput{$\vv{b}$}
\end{pspicture}
\end{document}

Now as you see, three arrows end in the node B. That doesn't look too 
amazing, although it is correct. I need to blow up the arrowsize, due 
the document will be scaled down for print. When not blowing up the 
arrowsize, the result looks better, but the arrows are almost not seen 
in the scaled down document.

Now how to make that look more aesthetic? Are there any conventions how 
to handle such a case? For sure i could give a little nodesep to the 
arrow lines, however then they do not really end in the node B...

Thanks for any hints!

Regards,

Juergen

-- 
 Jürgen Gilg
 Austr. 59
 70376 Stuttgart
-------------------------------------
 Tel       0711.59 27 88
 e-Mail    gilg at acrotex.net
 Websites  www.acrotex.net
           www.brueckenkurs-physik.de
           www.gilligan-online.de

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