<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:14pt"><div>Dear folks,</div><div><br></div><div style="color: rgb(0, 0, 0); font-size: 19px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; background-color: transparent; font-style: normal;">I noticed that \psline and \psbezier are the only open curves that can have a middle arrow via ArrowInside.</div><div style="color: rgb(0, 0, 0); font-size: 19px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; background-color: transparent; font-style: normal;"><span style="background-color: transparent;">Thus, the remaining open curves (\psarc, \psellipticarc, and \pscurve) cannot have a middle arrow.</span></div><div style="color: rgb(0, 0, 0); font-size: 19px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica,
Arial, 'Lucida Grande', sans-serif; background-color: transparent; font-style: normal;"><span style="background-color: transparent;"><br></span></div><div style="color: rgb(0, 0, 0); font-size: 19px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; background-color: transparent; font-style: normal;"><span style="background-color: transparent;">Here it is the minimal working example for you.</span></div><div style="color: rgb(0, 0, 0); font-size: 19px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; background-color: transparent; font-style: normal;"><span style="background-color: transparent;"><br></span></div><div style="background-color: transparent;">\documentclass[pstricks,border=12pt]{standalone}</div><div style="background-color: transparent;">\usepackage{pstricks-add}</div><div style="background-color:
transparent;">\psset{ArrowInside=->,linecolor=blue,linewidth=2pt}</div><div style="background-color: transparent;">\begin{document}</div><div style="background-color: transparent;">\begin{pspicture}[showgrid](6,-8)</div><div style="background-color: transparent;"><span class="Apple-tab-span" style="white-space:pre"> </span>\psline(1,0)(5,0)</div><div style="background-color: transparent;"><span class="Apple-tab-span" style="white-space:pre"> </span>\psarc(3,-1){1}{180}{360}</div><div style="background-color: transparent;"><span class="Apple-tab-span" style="white-space:pre"> </span>\psellipticarc[dimen=money](3,-3)(2,1){180}{360}</div><div style="background-color: transparent;"><span class="Apple-tab-span" style="white-space:pre"> </span>\pscurve(1,-5)(2,-6)(3,-5)(4,-6)(5,-5)</div><div style="background-color: transparent;"><span class="Apple-tab-span" style="white-space:pre"> </span>\psbezier(1,-7)(1,-8)(5,-8)(5,-7)</div><div
style="background-color: transparent;">\end{pspicture}</div><div style="background-color: transparent;"><span style="background-color: transparent;"></span></div><div style="background-color: transparent;">\end{document}</div><div style="background-color: transparent;"><br></div><div style="background-color: transparent; color: rgb(0, 0, 0); font-size: 19px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; font-style: normal;">Could you update the package such that all open curves can have a middle arrow? It is not only useful but also to maintain consistency.</div><div style="background-color: transparent; color: rgb(0, 0, 0); font-size: 19px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; font-style: normal;"><br></div><div style="background-color: transparent; color: rgb(0, 0, 0); font-size: 19px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial,
'Lucida Grande', sans-serif; font-style: normal;"><br></div><div style="background-color: transparent; color: rgb(0, 0, 0); font-size: 19px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; font-style: normal;">Thank you in advance.</div><div style="background-color: transparent; color: rgb(0, 0, 0); font-size: 19px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; font-style: normal;"><br></div><div style="background-color: transparent; color: rgb(0, 0, 0); font-size: 19px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; font-style: normal;">Best regards,</div><div style="background-color: transparent; color: rgb(0, 0, 0); font-size: 19px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; font-style: normal;"><br></div><div style="background-color: transparent; color: rgb(0, 0,
0); font-size: 19px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; font-style: normal;"><a href="http://tex.stackexchange.com/users/19356">http://tex.stackexchange.com/users/19356</a><br></div><div style="color: rgb(0, 0, 0); font-size: 19px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; background-color: transparent; font-style: normal;"><span style="background-color: transparent;"><br></span></div><div style="color: rgb(0, 0, 0); font-size: 19px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; background-color: transparent; font-style: normal;"><span style="background-color: transparent;"> </span></div><div style="color: rgb(0, 0, 0); font-size: 19px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; background-color: transparent; font-style:
normal;"><br></div></div></body></html>