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
|
//-----------------------------------------------------------------------------
/** @file libpentobi_base/TrigonTransform.cpp
@author Markus Enzenberger
@copyright GNU General Public License version 3 or later */
//-----------------------------------------------------------------------------
#include "TrigonTransform.h"
#include <cmath>
namespace libpentobi_base {
//-----------------------------------------------------------------------------
CoordPoint TransfTrigonIdentity::get_transformed(CoordPoint p) const
{
return p;
}
//-----------------------------------------------------------------------------
CoordPoint TransfTrigonRefl::get_transformed(CoordPoint p) const
{
return {-p.x, p.y};
}
//-----------------------------------------------------------------------------
CoordPoint TransfTrigonRot60::get_transformed(CoordPoint p) const
{
auto px = static_cast<float>(p.x);
auto py = static_cast<float>(p.y);
auto x = static_cast<int>(std::ceil(0.5f * px - 1.5f * py));
auto y = static_cast<int>(std::floor(0.5f * px + 0.5f * py));
return {x, y};
}
//-----------------------------------------------------------------------------
CoordPoint TransfTrigonRot120::get_transformed(CoordPoint p) const
{
auto px = static_cast<float>(p.x);
auto py = static_cast<float>(p.y);
auto x = static_cast<int>(std::ceil(-0.5f * px - 1.5f * py));
auto y = static_cast<int>(std::ceil(0.5f * px - 0.5f * py));
return {x, y};
}
//-----------------------------------------------------------------------------
CoordPoint TransfTrigonRot180::get_transformed(CoordPoint p) const
{
return {-p.x, -p.y};
}
//-----------------------------------------------------------------------------
CoordPoint TransfTrigonRot240::get_transformed(CoordPoint p) const
{
auto px = static_cast<float>(p.x);
auto py = static_cast<float>(p.y);
auto x = static_cast<int>(std::floor(-0.5f * px + 1.5f * py));
auto y = static_cast<int>(std::ceil(-0.5f * px - 0.5f * py));
return {x, y};
}
//-----------------------------------------------------------------------------
CoordPoint TransfTrigonRot300::get_transformed(CoordPoint p) const
{
auto px = static_cast<float>(p.x);
auto py = static_cast<float>(p.y);
auto x = static_cast<int>(std::floor(0.5f * px + 1.5f * py));
auto y = static_cast<int>(std::floor(-0.5f * px + 0.5f * py));
return {x, y};
}
//-----------------------------------------------------------------------------
CoordPoint TransfTrigonReflRot60::get_transformed(CoordPoint p) const
{
auto px = static_cast<float>(p.x);
auto py = static_cast<float>(p.y);
auto x = static_cast<int>(std::ceil(0.5f * (-px) - 1.5f * py));
auto y = static_cast<int>(std::floor(0.5f * (-px) + 0.5f * py));
return {x, y};
}
//-----------------------------------------------------------------------------
CoordPoint TransfTrigonReflRot120::get_transformed(CoordPoint p) const
{
auto px = static_cast<float>(p.x);
auto py = static_cast<float>(p.y);
auto x = static_cast<int>(std::ceil(-0.5f * (-px) - 1.5f * py));
auto y = static_cast<int>(std::ceil(0.5f * (-px) - 0.5f * py));
return {x, y};
}
//-----------------------------------------------------------------------------
CoordPoint TransfTrigonReflRot180::get_transformed(CoordPoint p) const
{
return {p.x, -p.y};
}
//-----------------------------------------------------------------------------
CoordPoint TransfTrigonReflRot240::get_transformed(CoordPoint p) const
{
auto px = static_cast<float>(p.x);
auto py = static_cast<float>(p.y);
auto x = static_cast<int>(std::floor(-0.5f * (-px) + 1.5f * py));
auto y = static_cast<int>(std::ceil(-0.5f * (-px) - 0.5f * py));
return {x, y};
}
//-----------------------------------------------------------------------------
CoordPoint TransfTrigonReflRot300::get_transformed(CoordPoint p) const
{
auto px = static_cast<float>(p.x);
auto py = static_cast<float>(p.y);
auto x = static_cast<int>(std::floor(0.5f * (-px) + 1.5f * py));
auto y = static_cast<int>(std::floor(-0.5f * (-px) + 0.5f * py));
return {x, y};
}
//-----------------------------------------------------------------------------
} // namespace libpentobi_base
|
