<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div><span>Dear Luis,</span></div><div><span><br></span></div><div><span>I still don't understand why the arc center becomes (6,6) for the second example but it is (3,3) in for the first example.</span></div><div><span>In my understanding, if \pnode(3,3){O} then \psarcn[origin={O}](O)... should be identical to the following:</span></div><div><span style="font-size: 12pt; "><br></span></div><div><ul><li><span style="font-size: 12pt; ">\psarcn[origin={O}](3,3)...</span><br></li><li><span style="font-size: 12pt; ">\psarcn[origin={3,3}](O)...</span></li><li><span style="font-size: 12pt; ">\psarcn[origin={3,3}](3,3)... <br></span></li></ul></div><div>I have not found the details in PSTricks manual how PSTricks makes assumption and calculates the arc center if nodes and literal numbers are
specified.</div><div><br></div><div><br></div><div>Thank you.</div><div><br></div><div><br></div><div>Higgs Boson</div><div> </div> <div style="font-family: 'times new roman', 'new york', times, serif; font-size: 12pt; "> <div style="font-family: 'times new roman', 'new york', times, serif; font-size: 12pt; "> <div dir="ltr"> <font size="2" face="Arial"> </font></div><br><br><br>Date: Mon, 23 Jul 2012 11:34:15 +0100<br>From: Luis Sequeira <<a ymailto="mailto:lfsequeira@gmail.com" href="mailto:lfsequeira@gmail.com">lfsequeira@gmail.com</a>><br><br><br>There is a bug in your code... <br><br>In the second version, you have <br><br>\psarcn[origin={O},linecolor=red]{->}(3,3) ....<br><br>You set the origin at (O), which has coordinates (3,3) so now your center (3,3) is actually at (3,3)+(3,3), as appears in the picture.<br><br>You should write just <br><br> \psarcn[linecolor=red]{->}(3,3) ....<br><br>or (perhaps better, since it
retains the fact that your coordinates are relative to (O)):<br><br> \psarcn[origin={O},linecolor=red]{->}(0,0) ....<br><br><br>Luis Sequeira<br><br><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><span style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; ">Date: Sat, 21 Jul 2012 17:52:52 -0700</span><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><span style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; ">From: Counter Terrorist <</span><a ymailto="mailto:the.counterterrorist@yahoo.com" href="mailto:the.counterterrorist@yahoo.com" style="color: rgb(35, 71, 134); outline: 0px; font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><span class="yshortcuts" id="lw_1343458292_4" style="cursor: pointer; color: rgb(54, 99, 136);
">the.counterterrorist@yahoo.com</span></a><span style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; ">></span><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><span style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; ">Dear Mr. Herbert,</span><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><span style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; ">I found a bug in PSTricks.?</span><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica,
sans-serif; font-size: 12px; "><span style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; ">Even though the points (O) and (3,3) represent the same point,</span><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><span style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; ">the second pspicture produces an arc at a wrong pivot.?</span><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><span style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px;
">\documentclass[pstricks,border=1cm]{standalone}</span><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><span style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; ">\usepackage{pst-eucl}</span><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><span style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; ">\begin{document}</span><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif;
font-size: 12px; "><span style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; ">\begin{pspicture}[showgrid=top](9,8)</span><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><span style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; ">\pstGeonode(3,3){O}(5,5){A}(5,1){B}</span><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><span style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; ">\pscircle[linestyle=dashed](O){2}</span><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><span style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; ">\psarcn[origin={O},linecolor=red]{->}</span><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size:
12px; "><span style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; ">(O)%<=============== COMPARE THIS ONE</span><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><span style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; ">{2}{(A)}{(B)}</span><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><span style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; ">\psline(A)(O)(B)</span><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><span style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; ">\end{pspicture}?</span><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><br style="color: rgb(69, 69, 69); font-family: Arial,
Helvetica, sans-serif; font-size: 12px; "><span style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; ">\begin{pspicture}[showgrid=top](9,8)</span><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><span style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; ">\pstGeonode(3,3){O}(5,5){A}(5,1){B}</span><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><span style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; ">\pscircle[linestyle=dashed](O){2}</span><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><span style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; ">\psarcn[origin={O},linecolor=red]{->}</span><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica,
sans-serif; font-size: 12px; "><span style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; ">(3,3)%<================ WITH THIS ONE</span><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><span style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; ">{2}{(A)}{(B)}</span><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><span style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; ">\psline(A)(O)(B)</span><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><span style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; ">\end{pspicture}?</span><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><br style="color: rgb(69, 69, 69);
font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><span style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; ">\end{document}</span><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><span style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; ">Thank you in advance.</span><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><span style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; ">best regards,</span><br style="color: rgb(69, 69, 69); font-family: Arial,
Helvetica, sans-serif; font-size: 12px; "><br style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><span style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; ">Higgs Boson</span> <br><br> </div> </div> </div></body></html>