From fbee21f4950b7337f7ad4b87bbe847fa61d0357c Mon Sep 17 00:00:00 2001
From: jrgissing <jrgiss05@gmail.com>
Date: Tue, 22 Jan 2019 23:22:51 -0700
Subject: [PATCH] distance constraint: clarify use case in docs

---
 doc/src/fix_bond_react.txt | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/doc/src/fix_bond_react.txt b/doc/src/fix_bond_react.txt
index 4eced39207..c5b07bb973 100644
--- a/doc/src/fix_bond_react.txt
+++ b/doc/src/fix_bond_react.txt
@@ -277,7 +277,9 @@ distance {ID1} {ID2} {rmin} {rmax} :pre
 
 where 'distance' is the required keyword, {ID1} and {ID2} are
 pre-reaction atom IDs, and these two atoms must be separated by a
-distance between {rmin} and {rmax} for the reaction to occur.
+distance between {rmin} and {rmax} for the reaction to occur. This
+constraint can be used to enforce a certain orientation between
+reacting molecules.
 
 Once a reaction site has been successfully identified, data structures
 within LAMMPS that store bond topology are updated to reflect the
-- 
GitLab