star-line

Structure for accelerating line importance sampling
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sln_line.h (1745B)


      1 /* Copyright (C) 2022, 2026 |Méso|Star> (contact@meso-star.com)
      2  * Copyright (C) 2026 Université de Lorraine
      3  * Copyright (C) 2022 Centre National de la Recherche Scientifique
      4  * Copyright (C) 2022 Université Paul Sabatier
      5  *
      6  * This program is free software: you can redistribute it and/or modify
      7  * it under the terms of the GNU General Public License as published by
      8  * the Free Software Foundation, either version 3 of the License, or
      9  * (at your option) any later version.
     10  *
     11  * This program is distributed in the hope that it will be useful,
     12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
     14  * GNU General Public License for more details.
     15  *
     16  * You should have received a copy of the GNU General Public License
     17  * along with this program. If not, see <http://www.gnu.org/licenses/>. */
     18 
     19 #ifndef SLN_LINE_H
     20 #define SLN_LINE_H
     21 
     22 #include "sln.h"
     23 
     24 #include <star/shtr.h>
     25 #include <rsys/rsys.h>
     26 #include <math.h>
     27 
     28 /* Forward declaration */
     29 struct sln_mixture;
     30 struct sln_tree;
     31 struct darray_vertex;
     32 
     33 static INLINE double
     34 line_center
     35   (const struct shtr_line* line,
     36    const double pressure) /* In atm */
     37 {
     38   ASSERT(line && pressure >= 0);
     39   return line->wavenumber + line->delta_air * pressure;
     40 }
     41 
     42 extern LOCAL_SYM res_T
     43 line_setup
     44   (const struct sln_tree* tree,
     45    const size_t iline,
     46    struct sln_line* line);
     47 
     48 extern LOCAL_SYM res_T
     49 line_mesh
     50   (struct sln_tree* tree,
     51    const size_t iline,
     52    const size_t nvertices_hint,
     53    /* Vertex buffer in which line vertices are added */
     54    struct darray_vertex* vertices, /* out */
     55    /* Range of generated line vertices. Bounds are inclusive */
     56    size_t vertices_range[2]); /* out */
     57 
     58 #endif /* SLN_LINE_H */