From 5f3d1e542616ded63b7d0b15ec21efc3c872471c Mon Sep 17 00:00:00 2001
From: ralfulrich <ralf.ulrich@kit.edu>
Date: Tue, 15 Sep 2020 14:02:52 +0200
Subject: [PATCH] added so far empty dummy class for NoMagneticField
---
Environment/CMakeLists.txt | 1 +
Environment/NoMagneticField.h | 59 +++++++++++++++++++++++++++++++++++
2 files changed, 60 insertions(+)
create mode 100644 Environment/NoMagneticField.h
diff --git a/Environment/CMakeLists.txt b/Environment/CMakeLists.txt
index c02aa9586..46ecfb3cb 100644
--- a/Environment/CMakeLists.txt
+++ b/Environment/CMakeLists.txt
@@ -35,6 +35,7 @@ set (
ShowerAxis.h
IMagneticFieldModel.h
UniformMagneticField.h
+ NoMagneticField.h
IRefractiveIndexModel.h
UniformRefractiveIndex.h
IMediumPropertyModel.h
diff --git a/Environment/NoMagneticField.h b/Environment/NoMagneticField.h
new file mode 100644
index 000000000..38e99347e
--- /dev/null
+++ b/Environment/NoMagneticField.h
@@ -0,0 +1,59 @@
+/*
+ * (c) Copyright 2020 CORSIKA Project, corsika-project@lists.kit.edu
+ *
+ * This software is distributed under the terms of the GNU General Public
+ * Licence version 3 (GPL Version 3). See file LICENSE for a full version of
+ * the license.
+ */
+
+#pragma once
+
+#include <corsika/environment/IMagneticFieldModel.h>
+#include <corsika/geometry/RootCoordinateSystem.h>
+
+namespace corsika::environment {
+
+ /**
+ * A uniform (constant) magnetic field.
+ *
+ * This class returns the same magnetic field vector
+ * for all evaluated locations.
+ *
+ */
+ template <typename T>
+ class NoMagneticField : public T {
+
+ // a type-alias for a magnetic field vector
+ using MagneticFieldVector =
+ corsika::geometry::Vector<corsika::units::si::magnetic_flux_density_d>;
+
+ public:
+ /**
+ * Construct a NoMagneticField.
+ *
+ * This is initialized with a fixed magnetic field
+ * and returns this magnetic field at all locations.
+ *
+ * @param field The fixed magnetic field to return.
+ */
+ template <typename... Args>
+ NoMagneticField(Args&&... args)
+ : T(std::forward<Args>(args)...)
+ {}
+
+ /**
+ * Evaluate the magnetic field at a given location.
+ *
+ * @param point The location to evaluate the field at.
+ * @returns The magnetic field vector.
+ */
+ MagneticFieldVector GetMagneticField(
+ corsika::geometry::Point const&) const final override {
+ CoordinateSystem const& gCS =
+ RootCoordinateSystem::GetInstance().GetRootCoordinateSystem();
+ return MagneticFieldVector(gCS, {0_T, 0_T, 0_T});
+ }
+
+ }; // END: class MagneticField
+
+} // namespace corsika::environment
--
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