clipping.h

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// Copyright (c) 2024 The YAC Authors
//
// SPDX-License-Identifier: BSD-3-Clause
 
#ifndef CLIPPING_H
#define CLIPPING_H
 
#include "grid_cell.h"
 
struct yac_circle;
 
void yac_cell_clipping (size_t N,
                        struct yac_grid_cell * source_cell,
                        struct yac_grid_cell target_cell,
                        struct yac_grid_cell * overlap_buffer);
 
void yac_cell_lat_clipping (size_t N,
                            struct yac_grid_cell * cells,
                            double lat_bounds[2],
                            struct yac_grid_cell * overlap_buffer);
 
void yac_compute_overlap_areas (size_t N,
                                struct yac_grid_cell * source_cell,
                                struct yac_grid_cell target_cell,
                                double * partial_areas);
 
void yac_compute_overlap_info (size_t N,
                               struct yac_grid_cell * source_cell,
                               struct yac_grid_cell target_cell,
                               double * overlap_areas,
                               double (*overlap_barycenters)[3]);
 
void yac_compute_overlap_buf_free();
 
void yac_correct_weights (size_t N, double * weight);
 
void yac_circle_generate(
  double const * a, double const * b, enum yac_edge_type type,
  int edge_ordering, struct yac_circle * circle);
 
int yac_circle_compare(void const * a, void const * b);
 
int yac_circle_contains_north_pole(struct yac_circle * circle);
 
int yac_circle_point_is_inside(
  double const point[3], struct yac_circle * circle);
 
int yac_circle_compare_distances(
  double const a[3], double const b[3], struct yac_circle * circle);
 
#endif // CLIPPING_H