Graphics, Figures & Tables ⇒ PSTricks | Code Optimizations

[svend_tveskaeg]

Hi all.

Consider the following MWE:

Code: Select all

\documentclass{article}

\usepackage{pstricks-add}

\begin{document}

\begin{figure}
\def\radius{5}
\pstFPmul\maximum{2}{\radius}
 \centering
 \psset{unit=0.8cm}
  \begin{pspicture}(\maximum,\maximum)
   \pnode(!\radius\space \radius\space){S}
   \uput[315](S){$S$}
   \pscircle(S){\radius}
   \multido{\iA=1+2,\iB=2+2,\rA=0+270,\rC=225+270,\rB=0+270,\rD=180+270}{4}{%
     \psRelNode[angle=\rA](S)(0,0){1}{P\iA}
     \uput[\rC](P\iA){$P_{\iA}$}
     \psRelNode[angle=\rB](S)(!0 \radius\space){1}{P\iB}
     \uput[\rD](P\iB){$P_{\iB}$}
   }
   \pspolygon(P1)(P3)(P5)(P7)
   \pspolygon(P2)(P4)(P6)(P8)
  \psset{linestyle=dotted}
   \pcline(P2)(P6)
   \pcline(P4)(P8)
  \end{pspicture}
\end{figure}

\end{document}

I have a feeling that the drawing can be created with more elegant or efficient code, especially the \multido part.

If anyone can create the drawing using "better" code, please let me know.

Thank you in advance!

[CrazyHorse]

I have a feeling that the drawing can be created with more elegant or efficient code, especially the \multido part.

It makes no sense to put objects which are completely symmetrical to one point not to that central point:

Code: Select all

\psset{unit=0.8cm}
  \begin{pspicture}(-\radius,-\radius)(\radius,\radius)
   \uput[315](0,0){$S$}\psdot(0,0)
   \pscircle(0,0){\radius}
   \psframe(!-\radius\space dup)(!\radius\space dup)
   \rput{45}(0,0){\psframe(!-\radius\space 2 sqrt div dup)(!\radius\space 2 sqrt div dup)}
   \multido{\iA=180+-90,\iB=2+2,
            \iC=225+-90,\iD=1+2}{4}{%
      \uput[\iA](\radius;\iA){$P_{\iB}$}
      \uput[\iC](!\radius\space 2 sqrt mul \iC\space PtoC){$P_{\iD}$}}
  \psline[linestyle=dotted](0,-\radius)(0,\radius)
  \psline[linestyle=dotted](-\radius,0)(\radius,0)
  \end{pspicture}

[svend_tveskaeg]

It makes no sense to put objects which are completely symmetrical to one point not to that central point.

Good point.

Thank you very much for helping me.