From 90790866658f82fdb3be67aaddbf8c378660efd9 Mon Sep 17 00:00:00 2001 From: guido Date: Tue, 12 Jul 2005 22:08:58 +0000 Subject: [PATCH] add documentation git-svn-id: https://svn.dealii.org/trunk@11132 0785d39b-7218-0410-832d-ea1e28bc413d --- deal.II/deal.II/include/grid/geometry_info.h | 83 ++++++++++++++++++++ 1 file changed, 83 insertions(+) diff --git a/deal.II/deal.II/include/grid/geometry_info.h b/deal.II/deal.II/include/grid/geometry_info.h index 3592c2b8c4..ad92073bfc 100644 --- a/deal.II/deal.II/include/grid/geometry_info.h +++ b/deal.II/deal.II/include/grid/geometry_info.h @@ -39,6 +39,7 @@ template class GeometryInfo; * vertices, neighbors and so on, since it can be used dimension * independently. * + * @ingroup grid * @author Wolfgang Bangerth, 1998 */ template <> @@ -107,11 +108,93 @@ struct GeometryInfo<0> +/** + * Topological description of four dimensional cells. This class is + * required in some exotic cases where we compute information in a + * one-larger dimension than the present, and do so also in 3d (for + * example, stacking the solutions of a d-dimensional time dependent + * equation timestep after timestep in a (d+1)-dimensional space). + * + * This class contains as static members information on vertices and + * faces of a @p dim-dimensional grid cell. The interface is the same + * for all dimensions. If a value is of no use in a low dimensional + * cell, it is (correctly) set to zero, e.g. @p subfaces_per_cell in + * 1d. + * + * This information should always replace hard-coded numbers of + * vertices, neighbors and so on, since it can be used dimension + * independently. + * + * @ingroup grid + * @author Wolfgang Bangerth, 1998 + */ +template <> +struct GeometryInfo<4> +{ + + /** + * Number of children a cell has. + */ + static const unsigned int children_per_cell = 16; + + /** + * Number of faces a cell has. + */ + static const unsigned int faces_per_cell = 8; + + /** + * Number of children each face has + * when the adjacent cell is refined. + */ + static const unsigned int subfaces_per_face = 8; + + /** + * Number of vertices a cell has. + */ + static const unsigned int vertices_per_cell = 16; + + /** + * Number of vertices each face + * has. + */ + static const unsigned int vertices_per_face = 8; + + /** + * Number of lines each face has. + */ + static const unsigned int lines_per_face = 12; + + /** + * Number of quads on each face. + */ + static const unsigned int quads_per_face = 6; + + /** + * Number of lines of a cell. + */ + static const unsigned int lines_per_cell = 32; + + /** + * Number of quadrilaterals of a + * cell. + */ + static const unsigned int quads_per_cell = 24; + + /** + * Number of hexahedra of a + * cell. + */ + static const unsigned int hexes_per_cell = 8; +}; + + + /** * This template specifies the interface to all topological structure * of the mesh cells. This template class can be instantiated for * dim=1,2 and 3. * + * @ingroup grid * @author Wolfgang Bangerth, 1998, Ralf Hartmann, 2005 */ template -- 2.39.5