cs_geom.h

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#ifndef __CS_GEOM_H__
#define __CS_GEOM_H__
 
/*============================================================================
 * Geometric utility functions.
 *===========================================================================*/
 
/*
  This file is part of Code_Saturne, a general-purpose CFD tool.
 
  Copyright (C) 1998-2019 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.
*/
 
/*----------------------------------------------------------------------------*/
 
#include "cs_defs.h"
 
/*----------------------------------------------------------------------------
 *  Local headers
 *---------------------------------------------------------------------------*/
 
/*---------------------------------------------------------------------------*/
 
BEGIN_C_DECLS
 
/*=============================================================================
 * Local Macro definitions
 *===========================================================================*/
 
/*============================================================================
 * Type definition
 *===========================================================================*/
 
/*=============================================================================
 * Global variables
 *===========================================================================*/
 
/*=============================================================================
 * Public function prototypes
 *===========================================================================*/
 
/*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*/
 
void
cs_geom_closest_point(cs_lnum_t         n_points,
                      const cs_real_t   point_coords[][3],
                      const cs_real_t   query_coords[3],
                      cs_lnum_t        *point_id,
                      int              *rank_id);
 
/*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*/
 
double
cs_geom_segment_intersect_face(int               orient,
                               cs_lnum_t         n_vertices,
                               const cs_lnum_t   vertex_ids[],
                               const cs_real_t   vtx_coord[][3],
                               const cs_real_t   face_cog[3],
                               const cs_real_t   sx0[3],
                               const cs_real_t   sx1[3],
                               int               n_crossings[2],
                               cs_real_t        *face_norm);
 
/*---------------------------------------------------------------------------*/
 
END_C_DECLS
 
#endif /* __CS_GEOM_H__ */