<html><body><div style="color:#000; background-color:#fff; 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; "><span style="color: rgb(57, 51, 24); font-family: 'Lucida Grande', 'Lucida Sans Unicode', 'Lucida Sans', Tahoma, sans-serif; font-size: 14px; line-height: 18px; background-color: rgba(255, 255, 255, 0.527344); "><br></span></div><div style="font-family: 'times new roman', 'new york', times, serif; font-size: 12pt; "><span style="color: rgb(57, 51, 24); font-family: 'Lucida Grande', 'Lucida Sans Unicode', 'Lucida Sans', Tahoma, sans-serif; font-size: 14px; line-height: 18px; background-color: rgba(255, 255, 255, 0.527344); ">Dear folks,</span></div><div style="font-family: 'times new roman', 'new york', times, serif; font-size: 12pt; "><span style="color: rgb(57, 51, 24); font-family: 'Lucida Grande', 'Lucida Sans Unicode', 'Lucida Sans',
Tahoma, sans-serif; font-size: 14px; line-height: 18px; background-color: rgba(255, 255, 255, 0.527344); "><br></span></div><div style="font-family: 'times new roman', 'new york', times, serif; font-size: 12pt; "><span style="color: rgb(57, 51, 24); font-family: 'Lucida Grande', 'Lucida Sans Unicode', 'Lucida Sans', Tahoma, sans-serif; font-size: 14px; line-height: 18px; background-color: rgba(255, 255, 255, 0.527344); "><br></span></div><div style="font-family: 'times new roman', 'new york', times, serif; font-size: 12pt; "><span style="color: rgb(57, 51, 24); font-family: 'Lucida Grande', 'Lucida Sans Unicode', 'Lucida Sans', Tahoma, sans-serif; font-size: 14px; line-height: 18px; background-color: rgba(255, 255, 255, 0.527344); ">How to rotate the label counter clockwise such that its base line is parallel to the bisector?</span></div><div style="font-family: 'times new roman', 'new york', times, serif; font-size: 12pt; "><span style="color: rgb(57,
51, 24); font-family: 'Lucida Grande', 'Lucida Sans Unicode', 'Lucida Sans', Tahoma, sans-serif; font-size: 14px; line-height: 18px; background-color: rgba(255, 255, 255, 0.527344); "><br></span></div><div><span style="background-color: rgba(255, 255, 255, 0.527344); font-size: 14px; line-height: 18px;"><font color="#393318" face="Lucida Grande, Lucida Sans Unicode, Lucida Sans, Tahoma, sans-serif"><div>\documentclass[border=0pt,pstricks]{standalone}</div><div>\usepackage{pst-eucl}</div><div>\psset{PointName=none,PointSymbol=none}</div><div>\begin{document}</div><div><br></div><div>\begin{pspicture}[showgrid=false](6,6)</div><div> \pstGeonode[CurveType=polyline](1,1){A}(5,5){B}(4,1){C}</div><div> \pstBissectBAC[linestyle=dotted,linecolor=red]{A}{B}{C}{C'}</div><div>
\pstMarkAngle[MarkAngleRadius=1.5,LabelSep=0.75]{A}{B}{C}{\tiny$180^\circ-\theta$}</div><div>\end{pspicture}</div><div><br></div><div>\end{document}</div><div><br></div><div><br></div><div>Thank you in advance.</div><div>best regards,</div><div><br></div><div>http://tex.stackexchange.com/users/9467</div></font></span></div></div></body></html>