GeometryStatics.hpp

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// This file is part of the Acts project.
//
// Copyright (C) 2016-2018 CERN for the benefit of the Acts project
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.

// GeometryStatics.h, Acts project

#pragma once
#include "Acts/Utilities/Definitions.hpp"

namespace Acts {

// transformations

static const Transform3D s_idTransform =
    Transform3D::Identity();  
static const Rotation3D s_idRotation =
    Rotation3D::Identity();  

// axis system
static const Vector3D s_xAxis(1, 0, 0);  
static const Vector3D s_yAxis(0, 1, 0);  
static const Vector3D s_zAxis(0, 0, 1);  

// unit vectors
static const Vector2D s_origin2D(0., 0.);

// origin

static const Vector3D s_origin(0, 0, 0);  

namespace detail {
static const double _helper[9] = {0., 1., 0., 1., 0., 0., 0., 0., -1.};
}

static const RotationMatrix3D s_idRotationZinverse(detail::_helper);
}  // namespace Acts