cs_cdo_connect.h

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#ifndef __CS_CDO_CONNECT_H__
#define __CS_CDO_CONNECT_H__

/*============================================================================
 * Manage connectivity (Topological features of the mesh)
 *============================================================================*/

/*
  This file is part of Code_Saturne, a general-purpose CFD tool.

  Copyright (C) 1998-2018 EDF S.A.

  This program is free software; you can redistribute it and/or modify it under
  the terms of the GNU General Public License as published by the Free Software
  Foundation; either version 2 of the License, or (at your option) any later
  version.

  This program is distributed in the hope that it will be useful, but WITHOUT
  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
  details.

  You should have received a copy of the GNU General Public License along with
  this program; if not, write to the Free Software Foundation, Inc., 51 Franklin
  Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/

/*----------------------------------------------------------------------------*/

/*----------------------------------------------------------------------------
 *  Local headers
 *----------------------------------------------------------------------------*/

#include "fvm_defs.h"

#include "cs_base.h"
#include "cs_flag.h"
#include "cs_mesh.h"
#include "cs_mesh_adjacencies.h"
#include "cs_range_set.h"

/*----------------------------------------------------------------------------*/

BEGIN_C_DECLS

/*============================================================================
 * Macro definitions
 *============================================================================*/

/* Main categories to consider for high-level structures
   Remark: scalar-valued HHO-P1 and vector-valued CDO-Fb shares the same
   structures
*/
#define CS_CDO_CONNECT_VTX_SCAL   0 /* Vb or VCb scalar-valued eq. */
#define CS_CDO_CONNECT_VTX_VECT   1 /* Vb or VCb vector-valued eq. */
#define CS_CDO_CONNECT_FACE_SP0   2 /* Fb or HHO-P0 scalar-valued eq. */
#define CS_CDO_CONNECT_FACE_VP0   3 /* Fb vector-valued eq. */
#define CS_CDO_CONNECT_FACE_SP1   3 /* HHO-P1 scalar-valued */
#define CS_CDO_CONNECT_FACE_SP2   4 /* HHO-P2 scalar-valued eq. */
#define CS_CDO_CONNECT_FACE_VHP0  3 /* HHO-P0 vector-valued eq. */
#define CS_CDO_CONNECT_FACE_VHP1  5 /* HHO-P1 vector-valued eq. */
#define CS_CDO_CONNECT_FACE_VHP2  6 /* HHO-P2 vector-valued eq. */

#define CS_CDO_CONNECT_N_CASES    7

/* Additional macros */
#define CS_TRIANGLE_CASE          3 /* Number of vertices in a triangle */

/*============================================================================
 * Type definitions
 *============================================================================*/

/* Connectivity structure */
typedef struct {

  cs_lnum_t          n_vertices;
  cs_lnum_t          n_edges;
  cs_lnum_t          n_faces[3];  /* 0: all, 1: border, 2: interior */
  cs_lnum_t          n_cells;

  /* Edge-related members */
  cs_adjacency_t    *e2v;         /* edge --> vertices connectivity */

  /* Face-related members */
  cs_adjacency_t    *f2c;         /* face --> cells connectivity */
  cs_adjacency_t    *f2e;         /* face --> edges connectivity */
  cs_adjacency_t    *bf2v;        /* border face --> vertices connectivity
                                     (map from cs_mesh_t) */

  /* Cell-related members */
  fvm_element_t     *cell_type;   /* type of cell */
  cs_flag_t         *cell_flag;   /* Flag (Border) */
  cs_adjacency_t    *c2f;         /* cell --> faces connectivity */
  cs_adjacency_t    *c2e;         /* cell --> edges connectivity */
  cs_adjacency_t    *c2v;         /* cell --> vertices connectivity */

  /* Delta of ids between the min./max. values of entities related to a cell
     Useful to store compactly the link between mesh ids and cell mesh ids
     needed during the cell mesh definition */
  cs_lnum_t  e_max_cell_range;
  cs_lnum_t  v_max_cell_range;

  /* Max. connectitivy size for cells */
  int  n_max_vbyc;   /* max. number of vertices in a cell */
  int  n_max_ebyc;   /* max. number of edges in a cell */
  int  n_max_fbyc;   /* max. number of faces in a cell */
  int  n_max_vbyf;   /* max. number of vertices in a face */
  int  n_max_v2fc;   /* max. number of faces connected to a vertex in a cell */
  int  n_max_v2ec;   /* max. number of edges connected to a vertex in a cell */

  /* Structures to handle parallelism/assembler */
  cs_range_set_t       *range_sets[CS_CDO_CONNECT_N_CASES];
  cs_interface_set_t   *interfaces[CS_CDO_CONNECT_N_CASES];

} cs_cdo_connect_t;

/*============================================================================
 * Global variables
 *============================================================================*/

/*============================================================================
 * Static Inline Public function prototypes
 *============================================================================*/

/*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*/

static inline void
cs_connect_get_next_3_vertices(const cs_lnum_t   *f2e_ids,
                               const cs_lnum_t   *e2v_ids,
                               const cs_lnum_t    start_idx,
                               cs_lnum_t         *v0,
                               cs_lnum_t         *v1,
                               cs_lnum_t         *v2)
{
  const cs_lnum_t _2e0  = 2*f2e_ids[start_idx],
                  _2e1  = 2*f2e_ids[start_idx+1];
  const cs_lnum_t tmp = e2v_ids[_2e1];

  *v0 = e2v_ids[_2e0];
  *v1 = e2v_ids[_2e0+1];
  *v2 = ((tmp != *v0) && (tmp != *v1)) ? tmp : e2v_ids[_2e1+1];
}

/*============================================================================
 * Public function prototypes
 *============================================================================*/

/*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*/

cs_cdo_connect_t *
cs_cdo_connect_init(cs_mesh_t      *mesh,
                    cs_flag_t       vb_scheme_flag,
                    cs_flag_t       vcb_scheme_flag,
                    cs_flag_t       fb_scheme_flag,
                    cs_flag_t       hho_scheme_flag);

/*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*/

cs_cdo_connect_t *
cs_cdo_connect_free(cs_cdo_connect_t   *connect);

/*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*/

void
cs_cdo_connect_summary(const cs_cdo_connect_t  *connect);

/*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*/

void
cs_cdo_connect_dump(const cs_cdo_connect_t  *connect);

/*----------------------------------------------------------------------------*/

END_C_DECLS

#endif /* __CS_CDO_CONNECT_H__ */