Acts/Surfaces/DiscBounds.hpp

0001 // This file is part of the Acts project.
0002 //
0003 // Copyright (C) 2016-2020 CERN for the benefit of the Acts project
0004 //
0005 // This Source Code Form is subject to the terms of the Mozilla Public
0006 // License, v. 2.0. If a copy of the MPL was not distributed with this
0007 // file, You can obtain one at http://mozilla.org/MPL/2.0/.
0008
0009 #pragma once
0010
0011 #include "Acts/Surfaces/SurfaceBounds.hpp"
0012
0013 namespace Acts {
0014
0015 /// @class DiscBounds
0016 ///
0017 /// @image html DiscBounds.gif
0018 ///
0019 /// common base class for all bounds that are in a r/phi frame
0020 ///  - simply introduced to avoid wrong bound assignments to surfaces
0021
0022 class DiscBounds : public SurfaceBounds {
0023  public:
0024   /// Return method for inner Radius
0025   virtual double rMin() const = 0;
0026
0027   /// Return method for outer Radius
0028   virtual double rMax() const = 0;
0029
0030   /// Return the vertices
0031   ///
0032   /// @param lseg the number of segments used to approximate
0033   /// and eventually curved line, the number refers to full 2*PI
0034   ///
0035   /// @note that the extremas are given, which may slightly alter the
0036   /// number of segments returned
0037   ///
0038   /// @return vector for vertices in 2D
0039   virtual std::vector<Vector2> vertices(unsigned int lseg) const = 0;
0040
0041   /// Returns a reference radius for binning
0042   virtual double binningValueR() const = 0;
0043
0044   /// Returns a refererance phi for binning
0045   virtual double binningValuePhi() const = 0;
0046
0047   /// Returns true for full phi coverage
0048   virtual bool coversFullAzimuth() const = 0;
0049
0050   /// Checks if it's inside the radius
0051   virtual bool insideRadialBounds(double R, double tolerance = 0.) const = 0;
0052 };
0053
0054 }  // namespace Acts