layout/parts.i4: better comment for positions of slip2's

diff --git a/layout/parts.i4 b/layout/parts.i4
index 2b90aaa75a688891b2f95e3cce59b04a82889d18..6b832f2fa23b988b297b1c3f681c21a5c2a807cc 100644 (file)
--- a/layout/parts.i4
+++ b/layout/parts.i4
@@ -148,7 +148,10 @@ enddef
 define(`def_slip2',`
 dnl OBJNAME-EXCLUDING-SLIP2 HALF-LEN HALF-ANG
  defpart slip2_$1
-  # configurations:  bl-tl 0  bl-tr 1  br-tl 2  br-tr 3
+  # configurations:  )  bl-tl  S0
+  #                  /  bl-tr  S1
+  #                  \  br-tl  S2
+  #                  (  br-tr  S3
   abs m 200 200 0
   rel m ml 0 0  $3
   rel m mr 0 0 -$3