From 347261492e7405c4717ee2ef403550847a74b099 Mon Sep 17 00:00:00 2001
From: Andre Sailer <andre.philippe.sailer@cern.ch>
Date: Thu, 25 Aug 2022 18:16:43 +0200
Subject: [PATCH] ChannelingCrystalMaterial: fix crystal_orientation to be
constPropertyRef
---
examples/DDG4/src/ChannelingCrystalMaterial.cpp | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/examples/DDG4/src/ChannelingCrystalMaterial.cpp b/examples/DDG4/src/ChannelingCrystalMaterial.cpp
index fe8a134d9..8bd416295 100644
--- a/examples/DDG4/src/ChannelingCrystalMaterial.cpp
+++ b/examples/DDG4/src/ChannelingCrystalMaterial.cpp
@@ -64,7 +64,7 @@ namespace dd4hep {
channelingData->SetFilename(crystal_data);
/// Set crystal orientation
- orientation = mat.propertyRef("Geant4-ignore:crystal_orientation");
+ orientation = mat.constPropertyRef("Geant4-ignore:crystal_orientation");
if ( !orientation.empty() ) {
Direction direction;
Property prop(direction);
--
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