Merge remote-tracking branch 'upstream/master' into commit-hook

HEP-FCC · Oct 17, 2018 · 2552609 · 2552609
2 parents b15e58e + 310b18c
commit 2552609
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/Sim/SimG4Components/src/SimG4SingleParticleGeneratorTool.cpp b/Sim/SimG4Components/src/SimG4SingleParticleGeneratorTool.cpp
@@ -79,7 +79,9 @@ G4Event* SimG4SingleParticleGeneratorTool::g4Event() {
   double randomZ = std::cos(theta);
 
   G4ThreeVector particleDir = G4ThreeVector(randomX, randomY, randomZ);
-  G4ThreeVector particlePosition = G4ThreeVector(m_vertexX, m_vertexY, m_vertexZ);
+  G4ThreeVector particlePosition = G4ThreeVector(CLHEP::RandFlat::shoot(-m_vertexX, m_vertexX),
+                                                 CLHEP::RandFlat::shoot(-m_vertexY, m_vertexY),
+                                                 CLHEP::RandFlat::shoot(-m_vertexZ, m_vertexZ));
 
   G4PrimaryVertex* vertex = new G4PrimaryVertex(particlePosition, 0.);
   G4PrimaryParticle* part = new G4PrimaryParticle(particleDef);