Line data    Source code

       1           0 : // Distributed under the MIT License.
       2             : // See LICENSE.txt for details.
       3             : 
       4             : #pragma once
       5             : 
       6             : namespace Poisson {
       7             : /// \brief Types of background geometries for the Poisson equation
       8           1 : enum class Geometry {
       9             :   /// Euclidean (flat) manifold with Cartesian coordinates, i.e. the metric has
      10             :   /// components \f$\gamma_{ij} = \delta_{ij}\f$ in these coordinates and thus
      11             :   /// all Christoffel symbols vanish: \f$\Gamma^i_{jk}=0\f$.
      12             :   FlatCartesian,
      13             :   /// The manifold is either curved or employs curved coordinates, so
      14             :   /// non-vanishing Christoffel symbols must be taken into account.
      15             :   Curved
      16             : };
      17             : }  // namespace Poisson