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-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% bsp105.tex ---
-%% Autor : Herbert Voss <voss@perce.de>
-%% Datum : 2004-04-25
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\documentclass[12pt]{article}
-\usepackage{pstricks}
-\usepackage{multido}
-\usepackage{pst-node}
-\usepackage{pst-key}
-\SpecialCoor
-
-\makeatletter
-\newif\ifPST@zeigeSP % Schwerpunkt markieren?
-\define@key{psset}{zeigeSP}[true]{% zeigeSP" entspricht true
- \@nameuse{PST@zeigeSP#1}% benutze \ifPST@zeigeSP
-}
-\psset{zeigeSP=true} % Vorgabe
-%
-\def\Schwerpunkt{\@ifnextchar[{\Schwerpunkt@i}{\Schwerpunkt@i[]}}
-\def\Schwerpunkt@i[#1](#2)(#3)(#4)#5{{ % {{ damit alles lokal bleibt
- \setkeys{psset}{#1} % Parameter setzen
- \pst@getcoor{#2}\pst@tempa% Punkt A % hole Kordinaten als x y
- \pst@getcoor{#3}\pst@tempb% Punkt B % "
- \pst@getcoor{#4}\pst@tempc% Punkt C % "
- \pnode(!% % setze Knoten
- \pst@tempa /YA exch \pst@number\psyunit div def
- /XA exch \pst@number\psxunit div def % x y in user Koordinaten
- \pst@tempb /YB exch \pst@number\psyunit div def
- /XB exch \pst@number\psxunit div def
- \pst@tempc /YC exch \pst@number\psyunit div def
- /XC exch \pst@number\psxunit div def
- XA XB XC add add 3.0 div % xSP
- YA YB YC add add 3.0 div % ySP
- ){#5} % #5 = Knotenname
- \ifPST@zeigeSP % markieren?
- \qdisk(#5){2pt}
- \fi
-}}
-\makeatother
-\pagestyle{empty}
-
-\begin{document}
-
-\begin{pspicture}(-5,-5)(5,5)
- \multido{\rA=-5+0.5,\rB=0+0.5,\rC=5+-0.5}{10}{%
- \pnode(-5,\rA){A}\pnode(\rB,5){B}\pnode(\rC,-5){C}%
- \pspolygon[linecolor=blue](A)(B)(C)%
- \Schwerpunkt(A)(B)(C){SP}%
- }
- \multido{\rA=0+0.5,\rB=5+-0.5,\rC=0+-0.5}{10}{%
- \pnode(-5,\rA){A}\pnode(5,\rB){B}\pnode(\rC,-5){C}%
- \pspolygon[linecolor=red](A)(B)(C)%
- \Schwerpunkt(A)(B)(C){SP}%
- }
- \multido{\rA=-5+0.5,\rB=0+-0.5,\rC=-5+0.5}{10}{%
- \pnode(\rA,5){A}\pnode(5,\rB){B}\pnode(-5,\rC){C}%
- \pspolygon[linecolor=cyan](A)(B)(C)%
- \Schwerpunkt(A)(B)(C){SP}%
- }
- \multido{\rA=0+0.5,\rB=5+-0.5,\rC=0+0.5}{10}{%
- \pnode(\rA,5){A}\pnode(\rB,-5){B}\pnode(-5,\rC){C}%
- \pspolygon[linecolor=magenta](A)(B)(C)%
- \Schwerpunkt(A)(B)(C){SP}%
- }
- \multido{\rA=5+-0.5,\rB=0+-0.5,\rC=-5+0.5}{10}{%
- \pnode(5,\rA){A}\pnode(\rB,-5){B}\pnode(\rC,5){C}%
- \pspolygon[linecolor=blue](A)(B)(C)%
- \Schwerpunkt(A)(B)(C){SP}%
- }
- \multido{\rA=0+-0.5,\rB=-5+0.5,\rC=0+0.5}{10}{%
- \pnode(5,\rA){A}\pnode(-5,\rB){B}\pnode(\rC,5){C}%
- \pspolygon[linecolor=red](A)(B)(C)%
- \Schwerpunkt(A)(B)(C){SP}%
- }
- \multido{\rA=5+-0.5,\rB=0+0.5,\rC=5+-0.5}{10}{%
- \pnode(\rA,-5){A}\pnode(-5,\rB){B}\pnode(5,\rC){C}%
- \pspolygon[linecolor=cyan](A)(B)(C)%
- \Schwerpunkt(A)(B)(C){SP}%
- }
- \multido{\rA=0+-0.5,\rB=-5+0.5,\rC=0+-0.5}{10}{%
- \pnode(\rA,-5){A}\pnode(\rB,5){B}\pnode(5,\rC){C}%
- \pspolygon[linecolor=magenta](A)(B)(C)%
- \Schwerpunkt(A)(B)(C){SP}%
- }
-\end{pspicture}
-
-\end{document}