Oi, you can try 'set cthick 5' for the thickness, and 'set arrowhead 0.1' for the size of the arrow. Regards, Patrick sansaad <sansaad at AJATO.COM.BR> a écrit : > Hi everybody, > > Is it possible to increase the thickness of the line of the vectors, while > using 'set gxout vector'? > > Thanks in advance, > > Sandra > > >