various cover variants

10 files changed, 458 insertions, 18 deletions

diff --git a/cover/Makefile b/cover/Makefile
index dcbe6c6..d0f0780 100644
--- a/cover/Makefile
+++ b/cover/Makefile
@@ -3,23 +3,41 @@
 #
 # (c) 2018 Prof Dr Andreas Müller, Hochschule Rapperswil
 #
-all:	matrix.pdf buchcover.png front.pdf back.pdf
+all:	matrix.pdf front back
 
 matrix.pdf:	matrix.tex
 	pdflatex matrix.tex
+#matrix2.pdf:	matrix2.tex
+#	pdflatex matrix2.tex
 
-buchcover.pdf:	buchcover.tex matrix.pdf
+buchcover:	buchcover.pdf buchcover-black.pdf
+buchcover.pdf:	buchcover.tex matrix-blue.png
 	pdflatex buchcover.tex
+buchcover-black.pdf:	buchcover-black.tex matrix-black.png
+	pdflatex buchcover-black.tex
 
-buchcover.png:	buchcover.pdf 
-	convert -density 300 -extract 1966x2900+2630+190 buchcover.pdf \
-		buchcover.png
-
-nozzle.jpg:	nozzle.png
-	convert nozzle.png -density 300 -units PixelsPerInch -flop nozzle.jpg
-
+front:	front.pdf front-black.pdf
 front.pdf:	front.tex buchcover.pdf
 	pdflatex front.tex
+front.png:	front.pdf
+	convert front.pdf -density 300 -units PixelsPerInch front.png
+front-black.pdf:	front-black.tex buchcover-black.pdf
+	pdflatex front-black.tex
+front-black.png:	front-black.pdf
+	convert front-black.pdf -density 300 -units PixelsPerInch front-black.png
 
+back:	back.pdf back-black.pdf
 back.pdf:	back.tex buchcover.pdf
 	pdflatex back.tex
+back-black.pdf:	back-black.tex buchcover-black.pdf
+	pdflatex back-black.tex
+
+matrix:	matrix.cpp
+	g++ -Wall -O2 -g -o matrix `pkg-config --cflags Magick++` matrix.cpp `pkg-config --libs Magick++`
+test:	matrix
+	./matrix -w 500 -h 1080  blubb.png && open blubb.png
+matrix-blue.png:	matrix
+	./matrix -f white -b blue -w 3840 -h 2160 -s 2 matrix-blue.png
+matrix-black.png:	matrix
+	./matrix -b black -w 3840 -h 2160 -s 2 matrix-black.png
+
diff --git a/cover/back-black.tex b/cover/back-black.tex
new file mode 100644
index 0000000..d4aa035
--- /dev/null
+++ b/cover/back-black.tex
@@ -0,0 +1,27 @@
+%
+% front.tex -- template for standalon tikz images
+%
+% (c) 2020 Prof Dr Andreas Müller, Hochschule Rapperswil
+%
+\documentclass[tikz]{standalone}
+\usepackage{amsmath}
+\usepackage{times}
+\usepackage{txfonts}
+\usepackage{pgfplots}
+\usepackage{csvsimple}
+%\usepackage{geometry}
+%\geometry{papersize={170mm,240mm},total={140mm,200mm},top=21mm,bindingoffset=10mm}
+
+\usetikzlibrary{arrows,intersections,math}
+\begin{document}
+\def\skala{1}
+\begin{tikzpicture}[>=latex,thick,scale=\skala]
+
+\begin{scope}
+\clip (1.6,2.1) rectangle (18.6,26.1);
+\includegraphics{buchcover-black.pdf}
+\end{scope}
+
+\end{tikzpicture}
+\end{document}
+
diff --git a/cover/buchcover-black.tex b/cover/buchcover-black.tex
new file mode 100644
index 0000000..81a471e
--- /dev/null
+++ b/cover/buchcover-black.tex
@@ -0,0 +1,162 @@
+%
+% buchcover.tex -- Cover für das Buch Numerik
+%
+% (c) 2018 Prof Dr Andreas Müller, Hochschule Rapperswil
+%
+\documentclass[11pt]{standalone}
+\usepackage{tikz}
+\usepackage{times}
+\usepackage{geometry}
+\usepackage{german}
+\usepackage[utf8]{inputenc}
+\usepackage[T1]{fontenc}
+\usepackage{times}
+\usepackage{amsmath,amscd}
+\usepackage{amssymb}
+\usepackage{amsfonts}
+\usepackage{txfonts}
+\usepackage{ifthen}
+\usetikzlibrary{math}
+\geometry{papersize={402mm,278mm},total={405mm,278mm},top=72.27pt, bottom=0pt, left=72.27pt, right=0pt}
+\newboolean{guidelines}
+\setboolean{guidelines}{false}
+\setboolean{guidelines}{true}
+
+\definecolor{textfarbe}{rgb}{0.4,1,0.8}
+\definecolor{textfarbe}{rgb}{1,1,1}
+
+\begin{document}
+\begin{tikzpicture}[>=latex, scale=1]
+\tikzmath{
+	real \ruecken, \einschlag, \gelenk, \breite, \hoehe;
+	\ruecken = 3.5;
+	\einschlag = 1.6;
+	\gelenk = 0.8;
+	\breite = 16.7;
+	\hoehe = 24.6;
+	real \bogengreite, \bogenhoehe;
+	\bogenbreite = 2 * (\breite + \einschlag + \gelenk) + \ruecken;
+	\bogenhoehe = 2 * \einschlag + \hoehe;
+}
+
+%\clip (0,0) circle (6);
+
+\draw[fill=black](0,0) rectangle({\bogenbreite},{\bogenhoehe});
+\hsize=13.6cm
+
+\begin{scope}
+\clip (0,0) rectangle({\bogenbreite},{\bogenhoehe});
+%\clip (0,0) rectangle ({\bogenbreite},20.2);
+%\node at (18.7,8.9) [scale=5.0]{\includegraphics{nozzle-hell.jpg}};
+%\node at (18.7,8.9) [scale=5.0]{\includegraphics{nozzle-hell3.jpg}};
+%\node at (18.7,8.9) [scale=5.0]{\includegraphics{nozzle.jpg}};
+%\node at ({\bogenbreite/2},13.0) {\includegraphics[width=42cm]{matrix.pdf}};
+\node at ({\bogenbreite/2},13.0) {\includegraphics[width=42cm]{matrix-black.png}};
+\end{scope}
+
+\node at ({\einschlag+2*\gelenk+\ruecken+1.5*\breite},24.3)
+	[color=textfarbe,scale=1]
+	{\hbox to\hsize{\hfill%
+	\sf \fontsize{24}{24}\selectfont Mathematisches Seminar}};
+
+\node at ({\einschlag+2*\gelenk+\ruecken+1.5*\breite},21.9)
+	[color=textfarbe,scale=1]
+	{\hbox to\hsize{\hfill%
+	\sf \fontsize{50}{50}\selectfont Matrizen}};
+
+\node at ({\einschlag+2*\gelenk+\ruecken+1.5*\breite},19.7)
+	[color=textfarbe,scale=1]
+	{\hbox to\hsize{\hfill%
+	\sf \fontsize{13}{5}\selectfont Andreas Müller und Roy Seitz}};
+
+\node at ({\einschlag+2*\gelenk+\ruecken+1.5*\breite},18.4)
+	[color=textfarbe,scale=1]
+	{\hbox to\hsize{\hfill%
+	\sf \fontsize{13}{5}\selectfont
+	Joshua Bär,			% E
+	Marius Baumann,			% E
+	Reto Fritsche,			% E (2)
+	Alain Keller%,			% E
+%	Ahmet Güzel%,			% E
+	}};
+
+\node at ({\einschlag+2*\gelenk+\ruecken+1.5*\breite},17.75)
+	[color=textfarbe,scale=1]
+	{\hbox to\hsize{\hfill%
+	\sf \fontsize{13}{5}\selectfont
+	Marc Kühne,
+	Robine Luchsinger,		% B
+	Naoki Pross,			% E
+	Thomas Reichlin%,                % B
+	}};
+
+\node at ({\einschlag+2*\gelenk+\ruecken+1.5*\breite},17.1)
+	[color=textfarbe,scale=1]
+	{\hbox to\hsize{\hfill%
+	\sf \fontsize{13}{5}\selectfont
+	Michael Schmid,		% MSE
+	Pascal Andreas Schmid,		% B
+	Adrian Schuler%,
+	}};
+ 
+\node at ({\einschlag+2*\gelenk+\ruecken+1.5*\breite},16.45)
+	[color=textfarbe,scale=1]
+	{\hbox to\hsize{\hfill%
+	\sf \fontsize{13}{5}\selectfont
+	Thierry Schwaller,		% E
+	Michael Steiner,		% E
+	Tim Tönz,			% E
+	Fabio Viecelli%,		% B
+	}};
+
+\node at ({\einschlag+2*\gelenk+\ruecken+1.5*\breite},15.8)
+	[color=textfarbe,scale=1]
+	{\hbox to\hsize{\hfill%
+	\sf \fontsize{13}{5}\selectfont
+	Lukas Zogg%,			% B
+	%
+	}};
+
+\node at ({\einschlag+2*\gelenk+\ruecken+1.5*\breite},15.15)
+	[color=textfarbe,scale=1]
+	{\hbox to\hsize{\hfill%
+	\sf \fontsize{13}{5}\selectfont
+	%Reto Wildhaber%			% B
+	}};
+ 
+%\node at (0,3) [color=white] {\sf \LARGE Mathematisches Seminar 2017};
+
+% Rücken
+\node at ({\bogenbreite/2 + 0.05},20.5) [color=textfarbe,rotate=-90]
+	{\sf\fontsize{35}{0}\selectfont Matrizen};
+
+% Buchrückseite
+\node at ({\einschlag+0.5*\breite},18.6) [color=textfarbe] {\sf
+\fontsize{13}{16}\selectfont
+\vbox{%
+\parindent=0pt
+%\raggedright
+Das Mathematische Seminar der Ostschweizer Fachhochschule
+in Rapperswil hat sich im Frühjahrssemester 2021 dem Thema
+Matrizen zugewandt.
+Ziel war, die vielfältigen Anwendungsmöglichkeiten dieser grundlegenden
+Datenstruktur zu ergründen.
+Dieses Buch bringt das Skript des Vorlesungsteils mit den von den
+Seminarteilnehmern beigetragenen Seminararbeiten zusammen.
+}};
+
+
+\ifthenelse{\boolean{guidelines}}{
+\draw[white] (0,{\einschlag})--({\bogenbreite},{\einschlag});
+\draw[white] (0,{\bogenhoehe-\einschlag})--({\bogenbreite},{\bogenhoehe-\einschlag});
+
+\draw[white] ({\einschlag},0)--({\einschlag},{\bogenhoehe});
+\draw[white] ({\einschlag+\breite},0)--({\einschlag+\breite},{\bogenhoehe});
+\draw[white] ({\einschlag+\breite+\gelenk},0)--({\einschlag+\breite+\gelenk},{\bogenhoehe});
+\draw[white] ({\bogenbreite-\einschlag-\breite-\gelenk},0)--({\bogenbreite-\einschlag-\breite-\gelenk},{\bogenhoehe});
+\draw[white] ({\bogenbreite-\einschlag-\breite},0)--({\bogenbreite-\einschlag-\breite},{\bogenhoehe});
+\draw[white] ({\bogenbreite-\einschlag},0)--({\bogenbreite-\einschlag},{\bogenhoehe});
+}{}
+
+\end{tikzpicture}
+\end{document}
diff --git a/cover/buchcover.tex b/cover/buchcover.tex
index 55c72d1..385f223 100644
--- a/cover/buchcover.tex
+++ b/cover/buchcover.tex
@@ -47,7 +47,8 @@
 %\node at (18.7,8.9) [scale=5.0]{\includegraphics{nozzle-hell.jpg}};
 %\node at (18.7,8.9) [scale=5.0]{\includegraphics{nozzle-hell3.jpg}};
 %\node at (18.7,8.9) [scale=5.0]{\includegraphics{nozzle.jpg}};
-\node at ({\bogenbreite/2},13.0) {\includegraphics[width=42cm]{matrix.pdf}};
+%\node at ({\bogenbreite/2},13.0) {\includegraphics[width=42cm]{matrix.pdf}};
+\node at ({\bogenbreite/2},13.0) {\includegraphics[width=42cm]{matrix-blue.png}};
 \end{scope}
 
 \node at ({\einschlag+2*\gelenk+\ruecken+1.5*\breite},24.3)
@@ -69,7 +70,7 @@
 	[color=white,scale=1]
 	{\hbox to\hsize{\hfill%
 	\sf \fontsize{13}{5}\selectfont
-	Joshua Baer,			% E
+	Joshua Bär,			% E
 	Marius Baumann,			% E
 	Reto Fritsche,			% E (2)
 	Alain Keller%,			% E
diff --git a/cover/front-black.tex b/cover/front-black.tex
new file mode 100644
index 0000000..c60e21e
--- /dev/null
+++ b/cover/front-black.tex
@@ -0,0 +1,27 @@
+%
+% front-black.tex -- template for standalon tikz images
+%
+% (c) 2020 Prof Dr Andreas Müller, Hochschule Rapperswil
+%
+\documentclass[tikz]{standalone}
+\usepackage{amsmath}
+\usepackage{times}
+\usepackage{txfonts}
+\usepackage{pgfplots}
+\usepackage{csvsimple}
+%\usepackage{geometry}
+%\geometry{papersize={170mm,240mm},total={140mm,200mm},top=21mm,bindingoffset=10mm}
+
+\usetikzlibrary{arrows,intersections,math}
+\begin{document}
+\def\skala{1}
+\begin{tikzpicture}[>=latex,thick,scale=\skala]
+
+\begin{scope}
+\clip (23.0,2.1) rectangle (40.0,26.1);
+\includegraphics{buchcover-black.pdf}
+\end{scope}
+
+\end{tikzpicture}
+\end{document}
+
diff --git a/cover/front.tex b/cover/front.tex
index f682d48..b2c2c53 100644
--- a/cover/front.tex
+++ b/cover/front.tex
@@ -18,7 +18,7 @@
 \begin{tikzpicture}[>=latex,thick,scale=\skala]
 
 \begin{scope}
-\clip (22.4,2.1) rectangle (39.4,26.1);
+\clip (23.0,2.1) rectangle (40.0,26.1);
 \includegraphics{buchcover.pdf}
 \end{scope}
 
diff --git a/cover/matrix.cpp b/cover/matrix.cpp
new file mode 100644
index 0000000..431126e
--- /dev/null
+++ b/cover/matrix.cpp
@@ -0,0 +1,121 @@
+/*
+ * matrix.cpp -- create the cover image
+ *
+ * (c) 2021 Prof Dr Andreas Müller, OST Ostschweizer Fachhochschule
+ */
+#include <ImageMagick-7/Magick++.h>
+#include <getopt.h>
+#include <iostream>
+#include <cstdlib>
+#include <cstdio>
+#include <string>
+
+class MatrixImage : public Magick::Image {
+	Magick::ColorRGB	_schriftfarbe;
+	double	_opacity_fade;
+public:
+	double	opacity_fade() const { return _opacity_fade; }
+	void	opacity_fade(double of) { _opacity_fade = of; }
+	MatrixImage(Magick::Geometry& geometry, Magick::Color& color,
+		Magick::Color& schriftfarbe)
+		: Magick::Image(geometry, color), _schriftfarbe(schriftfarbe) {
+		_opacity_fade = 0.9;
+		strokeColor(schriftfarbe);
+		fillColor(schriftfarbe);
+		font("Courier");
+	}
+	void	verticalline(double x, double scale, double startopacity);
+	void	verticallines(double width, double scale, double startopacity);
+};
+
+void	MatrixImage::verticalline(double x, double scale, double startopacity) {
+	std::vector<Magick::Drawable>	objects_to_draw;
+
+	fontPointsize(20 * scale);
+	double	heightstep = 16 * scale;
+
+	double	r = (random() % 65525) / 65535.;
+	double	initialheight = size().height() * (1 - 0.5 * r);
+	initialheight = heightstep * trunc(initialheight / heightstep);
+	double	opacity = startopacity;
+
+	for (int i = 0; i < 20; i++) {
+		objects_to_draw.push_back(Magick::DrawableStrokeOpacity(opacity));
+		objects_to_draw.push_back(Magick::DrawableFillOpacity(opacity));
+		char	buffer[2];
+		snprintf(buffer, sizeof(buffer), "%d", random() % 10);
+		objects_to_draw.push_back(Magick::DrawableText(x, initialheight - i * heightstep, buffer));
+		opacity *= opacity_fade();
+	}
+	draw(objects_to_draw);
+}
+
+void	MatrixImage::verticallines(double width, double scale, double startopacity) {
+	int	xstep = scale * 12;
+	for (int x = 0; x < width; x += xstep) {
+		verticalline(x, scale, startopacity);
+std::cout << x << std::endl;
+	}
+}
+
+struct option	longoptions[] = {
+{ "foreground",	required_argument,	NULL,	'f' },
+{ "background",	required_argument,	NULL,	'b' },
+{ "opacity",	required_argument,	NULL,	'o' },
+{ "width",	required_argument,	NULL,	'w' },
+{ "height",	required_argument,	NULL,	'h' },
+{ "scale",	required_argument,	NULL,	's' },
+{ NULL,		0,			NULL,	 0  }
+};
+
+int	main(int argc, char *argv[]) {
+	Magick::InitializeMagick(*argv);
+	int	width = 1920;
+	int	height = 1080;
+	double	opacityfade = 0.9;
+	std::string	backgroundcolor("black");
+	std::string	foregroundcolor("#66ffcc");
+	int	c;
+	int	longindex;
+	double	scale = 1;
+	while (EOF != (c = getopt_long(argc, argv, "f:b:o:w:h:s:", longoptions, &longindex)))
+		switch (c) {
+		case 'o':
+			opacityfade = std::stod(optarg);
+			break;
+		case 'w':
+			width = std::stoi(optarg);
+			break;
+		case 'h':
+			height = std::stoi(optarg);
+			break;
+		case 's':
+			scale = std::stod(optarg);
+			break;
+		case 'f':
+			foregroundcolor = std::string(optarg);
+			break;
+		case 'b':
+			backgroundcolor = std::string(optarg);
+			break;
+		}
+
+	if (optind >= argc) {
+		std::cerr << "no filename" << std::endl;
+		return EXIT_FAILURE;
+	}
+	std::string	filename(argv[optind]);
+
+	Magick::Geometry	geometry(width, height);
+	Magick::ColorRGB	background(backgroundcolor);
+	Magick::ColorRGB	schriftfarbe(foregroundcolor);
+
+	MatrixImage	image(geometry, background, schriftfarbe);
+	image.opacity_fade(opacityfade);
+
+	image.verticallines(image.size().width(), 0.5 * scale, 0.25);
+	image.verticallines(image.size().width(), 0.7 * scale, 0.5);
+	image.verticallines(image.size().width(), 1 * scale, 1);
+
+	image.write(filename);
+}
diff --git a/cover/matrix.pdf b/cover/matrix.pdf
index 385e283..51c4c05 100644
--- a/cover/matrix.pdf
+++ b/cover/matrix.pdf
diff --git a/cover/matrix.tex b/cover/matrix.tex
index 338435b..8952712 100644
--- a/cover/matrix.tex
+++ b/cover/matrix.tex
@@ -22,7 +22,9 @@
 
 \fill[color=blue] (0,{-0.3*\h}) rectangle (\w,{2*\h});
 
-\def\verticalline#1{
+% #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}{
@@ -30,18 +32,33 @@
 		\xdef\farbe{\pgfmathresult}
 		\pgfmathparse{int(random(0,9))}
 		\xdef\zeichen{\pgfmathresult}
-		\node[color=white!\farbe!blue,opacity={(1-\y/\l)}]
+		\node[color=white!\farbe!blue,opacity={(1-\y/\l)},scale=#2]
 		%\node[color=white!\farbe!blue]
-			at (#1,{\initialheight+\y}) {\tt\zeichen};
+			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{3}
 
-\foreach \x in {0,\s,...,\w}{
-	\verticalline{\x}
-}
+%\verticallines{\W}{0.5}
+%\verticallines{\W}{0.7}
+\verticallines{\W}{1.0}
+%\verticallines{\W}{1.4}
+%\verticallines{\W}{2}
 
 \end{scope}
 
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}
+