/usr/include/astrometry/codefile.h is in astrometry.net 0.46-0ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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This file is part of the Astrometry.net suite.
Copyright 2006, 2007 Dustin Lang, Keir Mierle and Sam Roweis.
The Astrometry.net suite 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, version 2.
The Astrometry.net suite 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 the Astrometry.net suite ; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef CODEFILE_H_
#define CODEFILE_H_
#include <sys/types.h>
#include <stdio.h>
#include "starutil.h"
#include "qfits_header.h"
#include "fitsbin.h"
#include "quadfile.h"
#include "starkd.h"
// util:
void codefile_compute_star_code(const double* starxyz, double* code, int dimquads);
void codefile_compute_field_code(const double* xy, double* code, int dimquads);
struct codefile {
int numcodes;
int numstars;
int dimcodes;
// upper bound
double index_scale_upper;
// lower bound
double index_scale_lower;
// unique ID of this index
int indexid;
// healpix covered by this index
int healpix;
// Nside of the healpixelization
int hpnside;
fitsbin_t* fb;
// when reading:
double* codearray;
};
typedef struct codefile codefile;
int codefile_close(codefile* cf);
int codefile_dimcodes(const codefile* cf);
void codefile_get_code(const codefile* cf, int codeid, double* code);
codefile* codefile_open(const char* fn);
codefile* codefile_open_for_writing(const char* fname);
codefile* codefile_open_in_memory();
// when in-memory
int codefile_switch_to_reading(codefile* cf);
int codefile_write_header(codefile* cf);
int codefile_write_code(codefile* cf, double* code);
int codefile_fix_header(codefile* cf);
qfits_header* codefile_get_header(const codefile* cf);
void quad_write(codefile* codes, quadfile* quads,
unsigned int* quad, startree_t* starkd,
int dimquads, int dimcodes);
void quad_write_const(codefile* codes, quadfile* quads,
const unsigned int* quad, startree_t* starkd,
int dimquads, int dimcodes);
#endif
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