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
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
|
// Copyright (c) 1997
// Utrecht University (The Netherlands),
// ETH Zurich (Switzerland),
// INRIA Sophia-Antipolis (France),
// Max-Planck-Institute Saarbruecken (Germany),
// and Tel-Aviv University (Israel). All rights reserved.
//
// This file is part of CGAL (www.cgal.org)
//
// $URL: https://github.com/CGAL/cgal/blob/v6.1/Stream_support/include/CGAL/IO/OFF/File_header_extended_OFF_impl.h $
// $Id: include/CGAL/IO/OFF/File_header_extended_OFF_impl.h b26b07a1242 $
// SPDX-License-Identifier: LGPL-3.0-or-later OR LicenseRef-Commercial
//
//
// Author(s) : Lutz Kettner <kettner@mpi-sb.mpg.de>
#ifdef CGAL_HEADER_ONLY
#define CGAL_INLINE_FUNCTION inline
#else
#define CGAL_INLINE_FUNCTION
#endif
#include <CGAL/IO/OFF/File_header_extended_OFF.h>
#include <CGAL/basic.h>
#include <cstdlib>
#include <cctype>
#include <cstring>
#include <iostream>
#include <sstream>
#include <algorithm>
namespace CGAL {
CGAL_INLINE_FUNCTION
bool File_header_extended_OFF::
is_POL() const {
return is_OFF() && polyhedral_surface();
}
CGAL_INLINE_FUNCTION
bool File_header_extended_OFF::
is_CBP() const {
return is_POL() && triangulated() && non_empty_facets() &&
normalized_to_sphere() && radius() <= 1.0;
}
CGAL_INLINE_FUNCTION
bool File_header_extended_OFF::
is_TRN() const { return is_CBP() && terrain(); }
CGAL_INLINE_FUNCTION
int File_header_extended_OFF::
is_CBPn() const {
if ( is_POL() && triangulated() && non_empty_facets() &&
normalized_to_sphere() && rounded() &&
(radius() <= double( 1l << rounded_bits())))
return rounded_bits();
else
return 0;
}
CGAL_INLINE_FUNCTION
int File_header_extended_OFF::
is_TRNn() const { return ( terrain() ? is_CBPn() : 0); }
// The proper file suffix with respect to file format.
CGAL_INLINE_FUNCTION
std::string File_header_extended_OFF::
suffix() const {
if ( is_TRNn()) {
std::ostringstream out;
out << "trn" << m_rounded_bits << '\0';
return out.str();
}
if ( is_TRN())
return std::string("trn");
if ( is_CBPn()) {
std::ostringstream out;
out << "cbp" << m_rounded_bits << '\0';
return out.str();
}
if ( is_CBP())
return std::string("cbp");
if ( is_POL())
return std::string("pol");
return std::string("off");
}
// The proper format name.
CGAL_INLINE_FUNCTION
std::string File_header_extended_OFF::
format_name() const {
if ( is_TRNn()) {
std::ostringstream out;
out << "TRN" << m_rounded_bits << '\0';
return out.str();
}
if ( is_TRN())
return std::string("TRN");
if ( is_CBPn()) {
std::ostringstream out;
out << "CBP" << m_rounded_bits << '\0';
return out.str();
}
if ( is_CBP())
return std::string("CBP");
if ( is_POL())
return std::string("POL");
return std::string("OFF");
}
CGAL_INLINE_FUNCTION
File_header_extended_OFF& File_header_extended_OFF::
operator+=( const File_header_extended_OFF& header) {
m_verbose = m_verbose || header.m_verbose;
m_polyhedral_surface = m_polyhedral_surface &&
header.m_polyhedral_surface;
m_halfedges += header.m_halfedges;
m_triangulated = m_triangulated && header.m_triangulated;
m_non_empty_facets = m_non_empty_facets &&
header.m_non_empty_facets;
m_terrain = m_terrain && header.m_terrain;
m_normalized_to_sphere = m_normalized_to_sphere &&
header.m_normalized_to_sphere;
m_radius = (std::max)(m_radius, header.m_radius);
m_rounded = m_rounded && header.m_rounded;
m_rounded_bits = (std::max)( m_rounded_bits,
header.m_rounded_bits);
m_off_header = m_off_header && header.m_off_header;
return *this;
}
} //namespace CGAL
// EOF //
|
