Move sloped labels a bit to the outside

wahlergebnis.tex

@@ -71,6 +71,11 @@
             ? (\labelarc - 180)
             : \labelarc}
     \pgfmathsetmacro{\middle}{0.5*\startarc+0.5*\endarc}
+    \pgfmathsetmacro{\labelradius}{
+        (\percent < 20)
+            ? (0.6*\radius+0.4*\smallradius)
+            : (0.5*\radius+0.5*\smallradius)
+        }
     \ifthenelse{\lengthtest{\percent pt < 20.0pt}}{
     \edef\mypath{(\startarc:\smallradius cm)
         -- (\endarc:\smallradius cm)
@@ -103,7 +108,7 @@
     %      ]  (-\radius cm,0) -| (\radius cm,\radius cm) -| cycle;
     \draw[segment,fill=\curcolor,draw=boxbg] \mypath;
       \node [anchor=center,rotate=\labelarc, shape border rotate=0]
-      at (\middle:0.5*\radius+0.5*\smallradius) 
+      at (\middle:\labelradius) 
       {\sf{\color{percentcolor}
         \seats\ \ifthenelse{\equal{\seats}{1}}{Sitz}{Sitze}}};
     %\draw (\middle:\radius) -- (\middle:0.5+\radius) node[\anchor] {\name};