# [pstricks] Elliptic arc through points

Hendrik Maryns hendrik at hendrikmaryns.name
Wed Nov 6 21:41:18 CET 2013

Hi all,

I use pst-eucl’s \pstGenericCurve to connect three points, but I would
like the arc to be an ellipse (it is a tilted circle).  Is there a
possibility to do that?  \psellipticarc is difficult to use, since it
does not go through points and I would have to compute the radii and
angles myself.

This is what I have:

\begin{pspicture}(0,-1)(3,2)
\pstGeonode[CurveType=polygon](0,0){A}(0,1){B}(2.5,.9){C1}(2.5,-.1){D1}
\pstGeonode(2.7,0){D2}(2.7,1){C2}
\pstGeonode(1.8,.3){D3}(1.8,1.3){C3}
\pstLineAB{B}{C3}
\pstLineAB[linestyle=dotted]{A}{D3}
\pstLineAB{D2}{C2}
\pstLineAB[linestyle=dotted]{D3}{C3}
\pstGenericCurve[linestyle=dotted]{D}{1}{3} % here
\pstGenericCurve[linestyle=solid]{D}{1}{2}  % and here
\pstGenericCurve{C}{1}{3}
\uput[-90](1.2,-.05){7~cm}
\uput[180](0,.5){3~cm}
\pstMarkAngle[MarkAngleRadius=1,LabelSep=1.5]{C1}{B}{C3}{$45^°$}
\end{pspicture}

I want the ‘here’ to be elliptic, and the line below to be solid, which
\pstGenericCurve does not do (it seems not to work with only 2 points).

TIA, H.
--
Hendrik Maryns

Drielandenhoek 24
NL-2034 LV Haarlem
+31237370263
+31634861841 (staat meestal uit, enkel nootgevallen)
http://hendrikmaryns.name
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