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diff --git a/Master/texmf-dist/doc/latex/pgfplots/pgfplots.titlepage.tex b/Master/texmf-dist/doc/latex/pgfplots/pgfplots.titlepage.tex
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--- a/Master/texmf-dist/doc/latex/pgfplots/pgfplots.titlepage.tex
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@@ -1,78 +0,0 @@
-\documentclass[a4paper]{article}
-
-\usepackage{pgfplots}
-
-\pgfplotsset{compat=newest}
-
-\begin{document}
-
-\begin{tikzpicture}
- \begin{axis}[
- point meta rel=per plot,
- filter discard warning=false,
- ]
- \addplot3[surf,domain=0:1] {
- x+y
- + 0.8*sin(x*360)*x*(1-y)
- + 0.4*(-sin(x*360)-sin(y*300))*(x+0.1)^2*(y+0.4)^2
- + exp(-((x-0.2)^2 + (y-0.7)^2)*10)*0.8
- };
- \addplot3[red,
- %--------------------------------------------------
- % quiver={
- % u=0,
- % v=1,
- % w=1-0.8*sin(1*360) ,
- % },
- %--------------------------------------------------
- variable=\t,
- domain=0:1,samples y=0]
- (1.03,t,{
- 1+t
- + 0.8*sin(1*360)*1*(1-t)
- + 0.4*(-sin(1*360)-sin(t*300))*(1+0.1)^2*(t+0.4)^2
- + exp(-((1-0.2)^2 + (t-0.7)^2)*10)*0.8
- });
- %\tracingmacros=2 \tracingcommands=2
- \addplot3[contour gnuplot={
- number=9,
- labels=false,
- output point meta=rawz, % override the z filter
- },
- z filter/.code={%
- \ifdim##1pt<0.15pt %
- \def\pgfmathresult{}% skip incomplete contour
- \else
- \def\pgfmathresult{3}% fix complete contour plot at a specific level
- \fi
- },
- domain=-0.3:0.6, domain y=-0.2:1.1,
- colormap/hot,
- ]
- {
- + exp(-((x-0.2)^2 + (y-0.7)^2)*10)*0.8
- };
-
- \addplot3[->,blue,domain=4:5*pi,variable=\t,samples=60,samples y=0]
- ({sin(deg(t))*(1-t/5/pi)*0.3 + 0.2},
- {cos(deg(t))*(1-t/5/pi)*0.15 + 0.7},
- {3*t/(5*pi)});
-
- \addplot3[quiver={
- % deg'(t) !?
- u= cos(deg(t)) * (1-t/5/pi)*0.3 - sin(deg(t)) *0.3 /5/pi,
- v=-sin(deg(t)) * (1-t/5/pi)*0.15- cos(deg(t)) *0.15/5/pi,
- w=3/5/pi,
- scale arrows=1.5,
- },
- red,
- -stealth,
- variable=\t,
- domain=4:5*pi,samples=5,samples y=0]
- ({sin(deg(t))*(1-t/5/pi)*0.3 + 0.2},
- {cos(deg(t))*(1-t/5/pi)*0.15 + 0.7},
- {3*t/(5*pi)});
- \end{axis}
-\end{tikzpicture}
-\end{document}
-