From ec1a719ee47dd5cb0045e011b1cfcd9d2f1c751f Mon Sep 17 00:00:00 2001
From: "W. Trevor King" <wking@tremily.us>
Date: Wed, 15 May 2013 21:26:18 -0400
Subject: [PATCH] pyafm/stack.tex: Explain the thermometer icon

---
 src/local_cmmds.tex | 8 ++++++++
 src/pyafm/stack.tex | 4 +++-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/local_cmmds.tex b/src/local_cmmds.tex
index 0ebbb37..42ff83d 100644
--- a/src/local_cmmds.tex
+++ b/src/local_cmmds.tex
@@ -200,6 +200,14 @@
 \DeclareRobustCommand{\tikzline}[1]{%
   \protect\tikz \draw[#1] (0,0) -- (14pt,6pt);}
 
+\DeclareRobustCommand{\thermocouple}{%
+  \begin{tikzpicture}
+    \draw[red] (0,1pt) -- (10pt,1pt);
+    \draw[purple] (0,3pt) -- (10pt,3pt);
+    \fill[black!20] (10pt,2pt) circle (2pt);
+  \end{tikzpicture}
+}
+
 % draw a thermometer in TikZ
 % usage: \thermometer{bulb-location}
 \newcommand{\thermometer}[1]{
diff --git a/src/pyafm/stack.tex b/src/pyafm/stack.tex
index d020cde..68eea4b 100644
--- a/src/pyafm/stack.tex
+++ b/src/pyafm/stack.tex
@@ -27,7 +27,9 @@ spectroscopy (\cref{fig:pyafm:stack}).
     the cantilever deflection (\cref{sec:pyafm:pypiezo}).  The
     \pypid\ package measures the buffer temperature using a
     thermocouple inserted in the fluid cell (\tikzline{purple,<-},
-    \cref{sec:pyafm:pypid}).\label{fig:pyafm:stack}}
+    \cref{sec:pyafm:pypid}).  I represent the thermocouple with a
+    thermometer icon, because I expect it is more recognizable than
+    \thermocouple.\label{fig:pyafm:stack}}
 \end{figure}
 
 \subsection{Pycomedi}
-- 
2.26.2