<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Hi,<div><br></div><div>It seems that \pstextpath cannot handle all compound symbols correctly. The small horizontal line is the horizontal bar of the square root symbol, and it is not correspondingly rotated and placed along the path. If you replace $\sqrt x$ by $\surd x$, the line disappears, but the square root symbol is still displayed only in its "short" form, without the bar. The same effect appears, if you try to typeset $\frac{a}{b}$ along a path.</div><div><br></div><div>Manfred</div><div> </div><div><div><div>On 22.04.2014, at 21:16, Donut E. Knot wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:14pt"><div class="" style="">Dear folks,</div><div class="" style=""><br class="" style=""></div><div class="" 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 class="" style=""></div><div class="" 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">Please consider the following code.</div><div class="" 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 class="" style=""></div><div class="" style="">\documentclass[pstricks,border=12pt,12pt]{standalone}</div><div class="" style="">\usepackage{pst-plot,pst-text}</div><div class="" style="">\psset{unit=4cm}</div><div class="" style=""><br class="" style=""></div><div class="" style="">\def\f{sqrt(x)}</div><div class="" style="">\def\g{x}</div><div class="" style=""><br class="" style=""></div><div class="" style="">\begin{document}</div><div class="" style="">\multido{\r=-1.0+0.1}{18}{%</div><div class="" style="">\begin{pspicture}[algebraic,plotpoints=200](-1,-1)(2.25,2.25)</div><div class="" style=""><span class="" style="white-space:pre"> </span>\psaxes{->}(0,0)(-1,-1)(2,2)[$x$,0][$y$,90]%</div><div class="" style=""><span class="" style="white-space:pre"> </span>\pstextpath[r](0,.1){\psplot[linecolor=blue]{-.5}{1.5}{\g}}{\textcolor{blue}{$g(x)= x$}}%</div><div class="" style=""><span class="" style="white-space:pre">
</span>\pstextpath[c](\r,.1){\psplot[linecolor=red]{0}{1.5}{\f}}{\textcolor{red}{$f(x)=\sqrt x$}}%</div><div class="" style="">\end{pspicture}}</div><div class="" style="">\end{document}</div><div class="" style=""><br class="" style=""></div><div class="" 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">There is a small red horizontal line as shown in this figure <a href="http://i.stack.imgur.com/mVTOu.gif" class="" style="">http://i.stack.imgur.com/mVTOu.gif</a>. Is it a bug?</div><div class="" 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 class="" style=""></div><div class="" 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 class="" style=""></div><div class="" 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">Thank you in advance.</div><div class="" 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 class="" style=""></div><div class="" 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 class="" style=""></div><div class="" 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">best regards,</div><div class="" 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 class="" style=""></div><div class="" 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 class="" style=""></div><div class="" 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 am who I say I am</div><div class="" 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">(<a href="http://tex.stackexchange.com/users/19356">http://tex.stackexchange.com/users/19356</a>)</div><div style="width:450px; font-family: 'Georgia', 'Times', 'Times New Roman', 'serif'" contenteditable="false" id="enhancrCard_0" class=""><table class="" cellspacing="0" cellpadding="0" style="width:450px; height:170px; display: block"><tbody class="" style=""><tr class="" style=""><td colspan="6" class="" style="height: 1px; background-color: #e5e5e5"><div class="" style="height: 1px; background-color: #e5e5e5"></div></td></tr><tr class="" style=""><td rowspan="2" class="" style="width: 1px; background-color: #e5e5e5"><div class="" style="width: 1px; background-color: #e5e5e5"></div></td><td class="" rowspan="2" style="vertical-align: middle; width: 168px; height: 168px; background-color: #000000"><div class="" style="width: 168px" align="center"><a href="http://i.stack.imgur.com/mVTOu.gif" class="" style="text-decoration: none !important; color: #000000 !important"><img alt="image" src="http://i.stack.imgur.com/mVTOu.gif" class="" width="168" height="168" style="display: block; margin: auto"></a></div></td><td rowspan="2" class="" style="width: 1px; background-color: #e5e5e5"><div class="" style="width: 1px; background-color: #e5e5e5"></div></td><td class="" colspan="2" style="width: 100%; vertical-align: middle; font-family: 'Georgia', 'Times', 'Times New Roman', 'serif'"><div class="" style="line-height:16.5px; background-color: #ffffff; height: 130px; width: 279px"><div class="" style="word-wrap: break-word; padding: 7px 20px 0px 14px"><span class="" style=""></span><span class="" style=""></span><a href="http://i.stack.imgur.com/mVTOu.gif" class="" style="text-decoration: none !important; color: #000000 !important"><span class="" style="margin: 0; font-weight: normal; font-size: 18px; line-height: 21px; max-height: 43px; color: #000000; overflow: hidden !important; display: inline-block"></span></a></div></div></td><td class="" rowspan="2" style="width: 1px; background-color: #e5e5e5"><div class="" style="width: 1px; background-color: #e5e5e5"></div></td></tr><tr class="" style=""><td class="" style="width: 100%; vertical-align: middle; font-family: 'Arial', 'Helvetica Neue', 'Helvetica', 'sans-serif'"><div class="" style="font-size: 0pt; padding: 7px 20px 9px 15px"><a href="http://i.stack.imgur.com/mVTOu.gif" class="" style="color: black; text-decoration: none !important;cursor:pointer !important" target="_blank"><span class="" style="display: inline-block; line-height: 11px; max-width: 179px; min-width: 119px; overflow: hidden; max-height: 13px; word-break: break-all"><span class="" style="vertical-align:middle; font-size: 9px; line-height: 11px; color: #999999; -moz-text-size-adjust: none; -ms-text-size-adjust: none; -webkit-text-size-adjust:none; text-size-adjust:none">View on <span style="font-weight: bold" class="">i.stack.imgur.com</span></span></span></a></div></td><td class="" style="vertical-align: middle; width: 100px; font-family: 'Arial', 'Helvetica Neue', 'Helvetica', 'sans-serif'"><div class="" style="padding: 9px 20px 12px 0px; max-width: 100px; min-width: 80px; overflow: hidden; text-align: right; line-height: 11px; max-height: 13px; font-size: 0pt"><span class="" style="vertical-align:middle; font-size: 9px; line-height: 11px; color: #999999; -moz-text-size-adjust: none; -ms-text-size-adjust: none; -webkit-text-size-adjust:none; text-size-adjust:none">Preview by Yahoo</span></div></td></tr><tr class="" style=""><td class="" colspan="6" style="height: 1px; background-color: #e5e5e5"><div class="" style="height: 1px; background-color: #e5e5e5"></div></td></tr></tbody></table></div><div class="" style=""><br class="" style=""></div></div></div>_______________________________________________<br>PSTricks mailing list<br><a href="mailto:PSTricks@tug.org">PSTricks@tug.org</a><br>http://tug.org/mailman/listinfo/pstricks<br>archive: http://www.tug.org/pipermail/pstricks/</blockquote></div><br></div></body></html>