From dd896a5c68541b9a064f85f7176bfae5962e886c Mon Sep 17 00:00:00 2001
From: Maximilian Reininghaus <maximilian.reininghaus@tu-dortmund.de>
Date: Thu, 21 May 2020 20:03:24 +0200
Subject: [PATCH] document vertical_EAS for fixed first interaction

---
 Documentation/Examples/vertical_EAS.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/Examples/vertical_EAS.cc b/Documentation/Examples/vertical_EAS.cc
index 323bf7b54..d78c72f42 100644
--- a/Documentation/Examples/vertical_EAS.cc
+++ b/Documentation/Examples/vertical_EAS.cc
@@ -194,8 +194,11 @@ int main(int argc, char** argv) {
   tracking_line::TrackingLine tracking;
   cascade::Cascade EAS(env, tracking, sequence, stack);
   EAS.Init();
+
+  // to fix the point of first interaction, uncomment the following two lines:
   //  EAS.SetNodes();
   //  EAS.forceInteraction();
+
   EAS.Run();
 
   eLoss.PrintProfile(); // print longitudinal profile
-- 
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