Merge remote-tracking branch 'upstream/master' into Baer

1 files changed, 68 insertions, 0 deletions

diff --git a/buch/papers/clifford/3d/qq.tex b/buch/papers/clifford/3d/qq.tex
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+++ b/buch/papers/clifford/3d/qq.tex
@@ -0,0 +1,68 @@
+%
+% qq.tex
+%
+% (c) 2021 Prof Dr Andreas Müller, OST Ostschweizer Fachhochschule
+%
+\documentclass[tikz]{standalone}
+\usepackage{times}
+\usepackage{amsmath}
+\usepackage{txfonts}
+\usepackage[utf8]{inputenc}
+\usepackage{graphics}
+\usetikzlibrary{arrows,intersections,math}
+\usepackage{ifthen}
+\begin{document}
+
+\definecolor{darkred}{rgb}{0.7,0,0}
+
+\newboolean{showgrid}
+\setboolean{showgrid}{false}
+\def\breite{4}
+\def\hoehe{4}
+
+\begin{tikzpicture}[>=latex,thick]
+
+% Povray Bild
+\begin{scope}[xshift=-3.3cm]
+\node at (0,0) {\includegraphics[width=6.3cm]{q23.jpg}};
+% Gitter
+\ifthenelse{\boolean{showgrid}}{
+\draw[step=0.1,line width=0.1pt] (-\breite,-\hoehe) grid (\breite, \hoehe);
+\draw[step=0.5,line width=0.4pt] (-\breite,-\hoehe) grid (\breite, \hoehe);
+\draw                            (-\breite,-\hoehe) grid (\breite, \hoehe);
+\fill (0,0) circle[radius=0.05];
+}{}
+\fill[color=white,opacity=0.5] ({-0.6-0.3},{-0.2-0.2}) rectangle ({-0.6+0.3},{-0.2+0.2});
+\node[color=darkred] at (-0.6,-0.2) {$\boldsymbol{q}_{23}$};
+\node[color=blue] at (-0.4,2.7) {$\boldsymbol{v}$};
+\node[color=blue] at (0.7,0.4) {$\boldsymbol{v}''_{23}$};
+\node at (3.1,-1.4) {$a_1$};
+\node at (-2.7,-2.4) {$a_3$};
+\node at (-0.7,3.4) {$a_2$};
+\end{scope}
+
+\setboolean{showgrid}{false}
+
+\begin{scope}[xshift=3.3cm]
+\node at (0,0) {\includegraphics[width=6.3cm]{q31.jpg}};
+% Gitter
+\ifthenelse{\boolean{showgrid}}{
+\draw[step=0.1,line width=0.1pt] (-\breite,-\hoehe) grid (\breite, \hoehe);
+\draw[step=0.5,line width=0.4pt] (-\breite,-\hoehe) grid (\breite, \hoehe);
+\draw                            (-\breite,-\hoehe) grid (\breite, \hoehe);
+\fill (0,0) circle[radius=0.05];
+}{}
+\fill[color=white,opacity=0.5] ({-0.7-0.3},{-0.9-0.2}) rectangle ({-0.7+0.3},{-0.9+0.2});
+\node[color=darkred] at (-0.7,-0.9) {$\boldsymbol{q}_{13}$};
+\node[color=blue] at (0.7,0.4) {$\boldsymbol{v}''_{23}$};
+\node[color=blue] at (2.7,-0.7) {$\boldsymbol{v}''$};
+\node at (3.1,-1.4) {$a_1$};
+\node at (-2.7,-2.4) {$a_3$};
+\node at (-0.7,3.4) {$a_2$};
+\end{scope}
+
+
+\end{tikzpicture}
+
+\end{document}
+