[Reproducible-commits] [presentations] 08/12: Replace "I want to believe" slide with a tikz version

[Holger Levsen]

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commit 90ed9e47b283a4f93d5110e1c243fab94e937ddc
Author: Lucas Nussbaum <lucas at debian.org>
Date:   Wed May 20 16:33:33 2015 +0200

    Replace "I want to believe" slide with a tikz version
---
 .../2015-05-26-CCCBerlin-header.tex                |  1 +
 2015-05-26-CCCBerlin/2015-05-26-CCCBerlin.mdwn     | 29 +++++++++++++++++-----
 2 files changed, 24 insertions(+), 6 deletions(-)

diff --git a/2015-05-26-CCCBerlin/2015-05-26-CCCBerlin-header.tex b/2015-05-26-CCCBerlin/2015-05-26-CCCBerlin-header.tex
index a77e812..2e7b958 100644
--- a/2015-05-26-CCCBerlin/2015-05-26-CCCBerlin-header.tex
+++ b/2015-05-26-CCCBerlin/2015-05-26-CCCBerlin-header.tex
@@ -3,6 +3,7 @@
 
 \usepackage{ctable}
 \usepackage{multicol}
+\usepackage{tikz}
 
 \usebackgroundtemplate{\includegraphics[width=\paperwidth]{images/swirl-lightest.pdf}}
 \logo{\includegraphics[viewport=274 335 360 440,width=1cm]{images/openlogo-nd.pdf}}
diff --git a/2015-05-26-CCCBerlin/2015-05-26-CCCBerlin.mdwn b/2015-05-26-CCCBerlin/2015-05-26-CCCBerlin.mdwn
index 8a59617..e641d0a 100644
--- a/2015-05-26-CCCBerlin/2015-05-26-CCCBerlin.mdwn
+++ b/2015-05-26-CCCBerlin/2015-05-26-CCCBerlin.mdwn
@@ -20,12 +20,29 @@ from a given source
 “I want to believe”
 -------------------
 
-\begin{overprint}
-\onslide<1>\centerline{\includegraphics[width=0.8\textwidth]{images/what-proofs-1}}
-\onslide<2>\centerline{\includegraphics[width=0.8\textwidth]{images/what-proofs-2}}
-\onslide<3>\centerline{\includegraphics[width=0.8\textwidth]{images/what-proofs-3}}
-\onslide<4>\centerline{\includegraphics[width=0.8\textwidth]{images/what-proofs-4}}
-\end{overprint}
+\center
+\begin{tikzpicture}
+\draw (-2,0) node[font=\LARGE] (source) { source };
+\draw (2,0) node[font=\LARGE] (binary) { binary };
+\draw[->,very thick] (source) -- (binary) node[midway] (midbuild) {};
+\draw (midbuild) node [above,color=debianred,font=\small] (build) {build};
+\visible<2>{
+\draw (0,2) node[font=\LARGE,color=debianblue] (fs) { free software };
+% font= specification is required to work-around a bug in md->latex conversion
+\draw[->,font=\normalsize] (fs) -- (source) node[midway,left=0.2cm,color=debianred,font=\footnotesize,align=center]{freedom\\to study};
+\draw[->,font=\normalsize] (fs) -> (binary) node[midway,right=0.2cm,color=debianred,font=\footnotesize,align=center]{freedom\\to run};
+}
+\visible<3->{
+\draw (-4,-1) node[font=\small,color=debianblue] (verified) { can be verified };
+\draw (4,-1) node[font=\small,color=debianblue] (used) { can be used };
+\path (verified) edge[->,bend left=30] (source);
+\path (used) edge[->,bend right=30] (binary);
+}
+\visible<4->{
+\draw (0,-2) node[font=\LARGE,color=debianred,align=center] (prove) { prove it\\ to me! };
+\path (prove) edge[->] (midbuild);
+}
+\end{tikzpicture}
 
 ----------------------------------
 

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