[pstricks] PSTricks Digest, Vol 97, Issue 25

[grivet]

I use the object "vecteur" under pst-solides3d; this draws an arrow of 
prescribed origin and direction. However, the arrow head (a cone) is 
very large and independant of the linewidth. Is it possible to have 
smaller arrowheads ?
A further question about arrows. I use the object "courbe" (with zero 
radius) to draw magnetic field lines; how can I along or at the end of a 
field line?
Thank you for your help
JP Grivet