From 5db0fbe0c6e2ce300fd1eebd9a3e01cec140bb80 Mon Sep 17 00:00:00 2001
From: Frank Gaede <frank.gaede@desy.de>
Date: Mon, 11 Jan 2016 16:13:03 +0000
Subject: [PATCH]  - do not set the endpoint to the start point of the particle

---
 DDG4/src/Geant4ParticleGenerator.cpp | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/DDG4/src/Geant4ParticleGenerator.cpp b/DDG4/src/Geant4ParticleGenerator.cpp
index 0544b97ac..17742a8d9 100644
--- a/DDG4/src/Geant4ParticleGenerator.cpp
+++ b/DDG4/src/Geant4ParticleGenerator.cpp
@@ -145,9 +145,10 @@ void Geant4ParticleGenerator::operator()(G4Event*) {
     p->vsx        = vtx->x;
     p->vsy        = vtx->y;
     p->vsz        = vtx->z;
-    p->vex        = vtx->x;
-    p->vey        = vtx->y;
-    p->vez        = vtx->z;
+    //fg: do not set the endpoint to the start point of the particle
+    // p->vex        = vtx->x;
+    // p->vey        = vtx->y;
+    // p->vez        = vtx->z;
     inter->particles.insert(make_pair(p->id,p));
     vtx->out.insert(p->id);
     printout(INFO,name(),"Particle [%d] %s %.3f GeV direction:(%6.3f %6.3f %6.3f)",
-- 
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