1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
/**************************************************************************
* *
* Regina - A Normal Surface Theory Calculator *
* Computational Engine *
* *
* Copyright (c) 1999-2025, Ben Burton *
* For further details contact Ben Burton (bab@debian.org). *
* *
* 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. *
* *
* As an exception, when this program is distributed through (i) the *
* App Store by Apple Inc.; (ii) the Mac App Store by Apple Inc.; or *
* (iii) Google Play by Google Inc., then that store may impose any *
* digital rights management, device limits and/or redistribution *
* restrictions that are required by its terms of service. *
* *
* 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, see <https://www.gnu.org/licenses/>. *
* *
**************************************************************************/
/*! \file foreign/orb.h
* \brief Allows reading Orb / Casson triangulation files.
*/
#ifndef __REGINA_ORB_H
#ifndef __DOXYGEN
#define __REGINA_ORB_H
#endif
#include <memory>
#include <string>
#include "regina-core.h"
#include "triangulation/forward.h"
namespace regina {
template <typename> class PacketOf;
/**
* Reads a triangulation from the given Orb / Casson file. A new
* triangulation packet will be returned.
*
* The packet label of the new triangulation will be the manifold name
* read from the second line of the Orb / Casson file. The first line
* of the Orb / Casson file must simply be: `% orb`
*
* If the file could not be read or if the data was not in the correct
* format, \c null will be returned.
*
* \i18n This routine makes no assumptions about the
* \ref i18n "character encoding" used in the given file _name_, and
* simply passes it through unchanged to low-level C/C++ file I/O routines.
* It assumes however that the _contents_ of the file are in UTF-8.
*
* \param filename the name of the Orb / Casson file from which to read.
* \return a new triangulation packet containing the data read from the
* Orb / Casson file, or \c null on error.
*
* \author Ryan Budney, also with code from Damien Heard
*
* \ingroup foreign
*/
std::shared_ptr<PacketOf<Triangulation<3>>> readOrb(const char *filename);
} // namespace regina
#endif
|
