Herbert, <br>in fact <br>\psplotDiffEqn[arrows=->,ArrowInside=->,arrowscale=2]{0}{8}{4}{\Func}<br>gives one arrow in each line joining two points. The problem appear when I want to optain a smooth curve and put e.g. plotpoints=100, then my curve consists of arrows only.
<br>If there is no a direct way I will try to find a solution in a different way. <br>-Andrzej<br><div><span class="gmail_quote">On 3/15/07, <b class="gmail_sendername">Herbert Voss</b> <<a href="mailto:LaTeX@zedat.fu-berlin.de">
LaTeX@zedat.fu-berlin.de</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Andrzej J. Maciejewski schrieb:<br>> in your example arrows=-> makes arrows,
i.e.,<br>> \psplotDiffEqn[ArrowInside=->]{0}{8}{4}{\Func}<br>> does not give any arrows (at least in on my computer)<br>> I generate many points solving given equation. Having a curve along<br>> them I<br>
> like to put few arrows on it. In a meantime I have checked that<br>> ArrowInside<br>> works for psline but \pscurve[ArrowInside=->](0,0)(4,2)(3,1) does not<br>> give<br>> arrows on curve. Does it mean that
<br>> ArrowInside shoud be used only with \psline?<br><br>Andrzej,<br>attached the png, what I get with this example:<br><br>\documentclass{article}<br>\usepackage{pstricks-add}<br>\begin{document}<br>%<br>\def\Func{ neg }
<br>%<br>\psset{method=rk4,plotpoints=10,linecolor=blue,linewidth=0.5pt}<br>\begin{pspicture}[showgrid=true](0,-0.5)(8,4)<br>\psplotDiffEqn[arrows=->,ArrowInside=->,arrowscale=2]{0}{8}{4}{\Func}<br>\end{pspicture}<br>
<br>\end{document}<br><br><br>Herbert<br><br>_______________________________________________<br>pstricks mailing list<br><a href="mailto:pstricks@tug.org">pstricks@tug.org</a><br><a href="http://tug.org/mailman/listinfo/pstricks">
http://tug.org/mailman/listinfo/pstricks</a><br><br><br></blockquote></div><br><br clear="all"><br>-- <br>Andrzej J. Maciejewski Institute of Astronomy<br> tel. +48 68 328 30 21 University of Zielona Góra
<br>fax. +48 68 328 73 60 Podgórna 50, 65-246 Zielona Góra<br><a href="http://astro.ia.uz.zgora.pl/~maciejka/">http://astro.ia.uz.zgora.pl/~maciejka/</a> POLAND