cline, offset

[Bernd Brandt]

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Dear all,

A few months ago i received a way to draw nodes with labels.
I have constructed a psmatrix withtwo lines with an offset now.
How can i make the labels, which are put below and above the line,
follow the offset? Furthermore i used a dummy node, with a fixed
position where it should connect with the line. Is there a way to
automate this as well? (depending on the colsep, rowsep, and offset?


\begin{pspicture}(0,-2.5)(9,5)\showgrid
\begin{psmatrix}[colsep=3,rowsep=1,mnode=circle]
                             & [name=E01]\MyBox{$E_{01}$} \\[0pt]
  [name=E00]\MyBox{$E_{00}$} &           & [name=E11]\MyBox{$E_{11}$} \\
                             & [name=E10]\MyBox{$E_{10}$}
  % Node connections
  \psset{nodesep=5pt,offset=4pt,arrows=->}
% LABELS DO NOT 'OBEY' OFFSET
  \ncline{E00}{E01}^{$\lambda_A$}_{\rnode{XA1}{$A$}}
  
  \ncline{E01}{E00}
  
%This is the fixed dummy node: 
  \ncput[npos=0.9]{\pnode{X1}}
  \nccurve[nodesepA=0.1,nodesepB=0,ncurv=0.6,angleA=30, angleB=200]{-}{XA1}{X1}
  \ncline{E00}{E10}^{$\lambda_B$}_{\rnode{XB2}{$B$}}
  \ncput[npos=0.9]{\pnode{X2}}        
  \nccurve[nodesepA=0.1,nodesepB=0,ncurv=0.9,angleA=0, angleB=160]{-}{XB2}{X2}
  \ncline{E01}{E11}^{$\lambda_B$}_{\rnode{XB2}{$B$}}
  \ncput[npos=0.9]{\pnode{X3}}
  \nccurve[nodesepA=0.1,nodesepB=0,ncurv=0.9,angleA=0, angleB=160]{-}{XB2}{X3}
  \ncline{E10}{E11}^{$\lambda_A$}_{\rnode{XA2}{$A$}}
  \ncput[npos=0.9]{\pnode{X4}}
  \nccurve[nodesepA=0.1,nodesepB=0,ncurv=0.6,angleA=30,angleB=200]{-}{XA2}{X4}
  \nccurve[ncurv=1,angle=-90]{E11}{E00}_{$\lambda_H$}
\end{psmatrix}
\end{pspicture}


I am looking forward to receiving some tips

Thanks.

Bernd Brandt

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