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Diffstat (limited to 'cover/matrix2.tex')
| -rw-r--r-- | cover/matrix2.tex | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/cover/matrix2.tex b/cover/matrix2.tex new file mode 100644 index 0000000..a39b493 --- /dev/null +++ b/cover/matrix2.tex @@ -0,0 +1,67 @@ +% +% matrix.tex -- Hintergrund für Bucheinband +% +% (c) 2021 Prof Dr Andreas Müller, OST Ostschweizer Fachhochschule +% +\documentclass[tikz]{standalone} +\usepackage{amsmath} +\usepackage{times} +\usepackage{txfonts} +\usepackage{pgfplots} +\usepackage{csvsimple} +\usetikzlibrary{arrows,intersections,math} +\begin{document} +\def\skala{1} +\begin{tikzpicture}[>=latex,thick,scale=\skala] + +\def\w{30} +\def\h{10} +\def\l{7} +\def\s{0.22} +\def\vs{0.27} + +\fill[color=blue] (0,{-0.3*\h}) rectangle (\w,{2*\h}); + +% #1 = x coordinate +% #2 = scale factor +\def\verticalline#1#2{ + \pgfmathparse{int(random(0,\h/\vs))*\vs} + \xdef\initialheight{\pgfmathresult} + \foreach \y in {0,\vs,...,\l}{ + \pgfmathparse{100*(1-(sqrt(\y/\l)))} + \xdef\farbe{\pgfmathresult} + \pgfmathparse{int(random(0,9))} + \xdef\zeichen{\pgfmathresult} + \node[color=white!\farbe!blue,opacity={(1-\y/\l)},scale=#2] + %\node[color=white!\farbe!blue] + at (#1,{\initialheight+\y*(#2)}) {\tt\zeichen}; + } +} + +% #1 = width +% #2 = scalefactor +\def\verticallines#1#2{ + \pgfmathparse{int(#1/(#2*\s))} + \xdef\xlimit{\pgfmathresult} + \foreach \x in {0,1,...,\xlimit}{ + \pgfmathparse{\x*\s*(#2)} + \xdef\X{\pgfmathresult} + \verticalline{\X}{#2} + } +} + +\begin{scope} +\clip (0,{-0.3*\h}) rectangle (\w,{2*\h}); +\def\W{10} + +\verticallines{\W}{0.5} +\verticallines{\W}{0.7} +\verticallines{\W}{1.0} +\verticallines{\W}{1.4} +\verticallines{\W}{2} + +\end{scope} + +\end{tikzpicture} +\end{document} + |