local_cmmds.tex: Use bending arrows in \tikzstack

Instead of stacking arrows of different widths.  The small arrow had
been hard to see with the big arrow behind it.  The bending is much
more elegant.

diff --git a/src/local_cmmds.tex b/src/local_cmmds.tex
index 42ff83d22a9bce5b1dd3ad95b5c3bb4bc6a9da27..b1cbac38ecf3e248ec7388c0eac06b384806e007 100644 (file)
--- a/src/local_cmmds.tex
+++ b/src/local_cmmds.tex
@@ -228,7 +228,8 @@
         {
           \draw (0, 2pt) -- (1pt, -2pt);
         }
-      }
+      },
+      bend angle=5
       ]
     \tikzstyle{every node}=[text depth=0pt, rounded rectangle,
       draw=blue!50, very thick, minimum height=1.7em]
@@ -280,13 +281,13 @@
       (motor) -- (image.south);   % shaft with decoration threads
     % end motor screw
     \draw[red, <->] (pypiezo) -- (pycomedi);
-    \draw[red, <->, line width=2pt] (pycomedi) -- (daq);
+    \draw[red, <->] (pycomedi) to [bend left] (daq);
     \draw[red, ->] (daq) -- (piezo);
     \begin{pgfonlayer}{background}
       \draw[red, ->, out=180, in=90] (photodiode) to (daq.north);
     \end{pgfonlayer}
     \draw[blue, ->] (stepper) -- (pycomedi);
-    \draw[blue, ->] (pycomedi) -- (daq);
+    \draw[blue, ->] (pycomedi) to [bend right] (daq);
     \draw[blue, ->] (daq) -- (motor);
   \end{tikzpicture}
 }