BIP 174 workflow graphics

bip-0174/coinjoin-workflow.tex

@@ -0,0 +1,59 @@
+% using the PGF/TikZ package with pdflatex
+\documentclass{standalone}
+\usepackage[utf8]{inputenc}
+\usepackage[T1]{fontenc}
+%~ \usepackage[english]{babel}
+\usepackage[none]{hyphenat}% prevent hyphenation
+\usepackage{lmodern}
+\renewcommand*\familydefault{\sfdefault}
+\usepackage{tikz}
+\usetikzlibrary{shapes,arrows}
+\tikzset{>=latex}
+\begin{document}
+%  \sffamily{}
+  \tikzstyle{block_center}	=
+	[rectangle, draw=black, thick, fill=white,
+	  text width=12em, text centered,
+	  minimum height=5em]
+  \tikzstyle{block_rounded}	= [rectangle,
+      draw=black, thick, fill=white,
+      text width=8em, text centered,
+      minimum height=5em,
+      rounded corners]
+  \begin{tikzpicture}[auto]
+    % outlining the flowchart on a grid
+    \matrix[column sep=3ex,row sep=2ex]{
+      \node [block_center] (0alice1)
+      {Alice creates a PSBT with only her inputs
+      with UTXOs filled in.\\Sends it to Bob.};
+      &
+      \node [block_center] (1bob1)
+      {Bob adds his inputs and fills in his
+      UTXOs.};
+      &
+      \node [block_center] (2carol1)
+      {Carol adds her inputs, fills in her
+      UTXOs, adds signatures, and finalizes her inputs.};
+      \\
+      \node [block_rounded] (5alice2)
+      {Alice extracts the network serialized
+      transaction and broadcasts it.};
+      &
+      \node [block_center] (4alice1)
+      {Alice signs the transaction, adds her
+      signatures, and finalizes her inputs.};
+      &
+      \node [block_center] (3bob2)
+      {Bob signs the transaction, adds his
+      signatures, and finalizes his inputs.};
+      \\
+    };% end matrix
+    % connecting nodes with paths
+    \draw[line width = 1pt, ->]
+      (0alice1) edge (1bob1)
+      (1bob1) edge (2carol1)
+      (2carol1) edge (3bob2)
+      (3bob2) edge (4alice1)
+      (4alice1) edge (5alice2);
+  \end{tikzpicture}
+\end{document}