|
1
|
|
|
<?php |
|
2
|
|
|
/** |
|
3
|
|
|
* phpMyAdmin ShapeFile library |
|
4
|
|
|
* <https://github.com/phpmyadmin/shapefile/>. |
|
5
|
|
|
* |
|
6
|
|
|
* Copyright 2006-2007 Ovidio <ovidio AT users.sourceforge.net> |
|
7
|
|
|
* Copyright 2016 Michal Čihař <[email protected]> |
|
8
|
|
|
* |
|
9
|
|
|
* This program is free software; you can redistribute it and/or |
|
10
|
|
|
* modify it under the terms of the GNU General Public License |
|
11
|
|
|
* as published by the Free Software Foundation. |
|
12
|
|
|
* |
|
13
|
|
|
* This program is distributed in the hope that it will be useful, |
|
14
|
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
15
|
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|
16
|
|
|
* GNU General Public License for more details. |
|
17
|
|
|
* |
|
18
|
|
|
* You should have received a copy of the GNU General Public License |
|
19
|
|
|
* along with this program; if not, you can download one from |
|
20
|
|
|
* https://www.gnu.org/copyleft/gpl.html. |
|
21
|
|
|
*/ |
|
22
|
|
|
|
|
23
|
|
|
namespace PhpMyAdmin\ShapeFile; |
|
24
|
|
|
|
|
25
|
|
|
class Util |
|
26
|
|
|
{ |
|
27
|
|
|
private static $little_endian = null; |
|
28
|
|
|
|
|
29
|
|
|
private static $shape_names = array( |
|
30
|
|
|
0 => 'Null Shape', |
|
31
|
|
|
1 => 'Point', |
|
32
|
|
|
3 => 'PolyLine', |
|
33
|
|
|
5 => 'Polygon', |
|
34
|
|
|
8 => 'MultiPoint', |
|
35
|
|
|
11 => 'PointZ', |
|
36
|
|
|
13 => 'PolyLineZ', |
|
37
|
|
|
15 => 'PolygonZ', |
|
38
|
|
|
18 => 'MultiPointZ', |
|
39
|
|
|
21 => 'PointM', |
|
40
|
|
|
23 => 'PolyLineM', |
|
41
|
|
|
25 => 'PolygonM', |
|
42
|
|
|
28 => 'MultiPointM', |
|
43
|
|
|
31 => 'MultiPatch', |
|
44
|
|
|
); |
|
45
|
|
|
|
|
46
|
|
|
/** |
|
47
|
|
|
* Reads data. |
|
48
|
|
|
* |
|
49
|
|
|
* @param string $type type for unpack() |
|
50
|
|
|
* @param string $data Data to process |
|
51
|
|
|
* |
|
52
|
|
|
* @return mixed |
|
53
|
|
|
*/ |
|
54
|
23 |
|
public static function loadData($type, $data) |
|
55
|
|
|
{ |
|
56
|
23 |
|
if ($data === false || strlen($data) == 0) { |
|
57
|
21 |
|
return false; |
|
58
|
|
|
} |
|
59
|
21 |
|
$tmp = unpack($type, $data); |
|
60
|
|
|
|
|
61
|
21 |
|
return current($tmp); |
|
62
|
|
|
} |
|
63
|
|
|
|
|
64
|
|
|
/** |
|
65
|
|
|
* Changes endianity. |
|
66
|
|
|
* |
|
67
|
|
|
* @param string $binValue Binary value |
|
68
|
|
|
* |
|
69
|
|
|
* @return string |
|
70
|
|
|
*/ |
|
71
|
1 |
|
public static function swap($binValue) |
|
72
|
|
|
{ |
|
73
|
1 |
|
$result = $binValue[strlen($binValue) - 1]; |
|
74
|
1 |
|
for ($i = strlen($binValue) - 2; $i >= 0; --$i) { |
|
75
|
1 |
|
$result .= $binValue[$i]; |
|
76
|
1 |
|
} |
|
77
|
|
|
|
|
78
|
1 |
|
return $result; |
|
79
|
|
|
} |
|
80
|
|
|
|
|
81
|
|
|
/** |
|
82
|
|
|
* Encodes double value to correct endianity. |
|
83
|
|
|
* |
|
84
|
|
|
* @param float $value Value to pack |
|
85
|
|
|
* |
|
86
|
|
|
* @return string |
|
87
|
|
|
*/ |
|
88
|
13 |
|
public static function packDouble($value) |
|
89
|
|
|
{ |
|
90
|
13 |
|
$bin = pack('d', (float) $value); |
|
91
|
|
|
|
|
92
|
13 |
|
if (is_null(self::$little_endian)) { |
|
93
|
1 |
|
self::$little_endian = (pack('L', 1) == pack('V', 1)); |
|
94
|
1 |
|
} |
|
95
|
|
|
|
|
96
|
13 |
|
if (self::$little_endian) { |
|
97
|
13 |
|
return $bin; |
|
98
|
|
|
} else { |
|
99
|
|
|
return self::swap($bin); |
|
100
|
|
|
} |
|
101
|
|
|
} |
|
102
|
|
|
|
|
103
|
|
|
/** |
|
104
|
|
|
* Returns shape name. |
|
105
|
|
|
* |
|
106
|
|
|
* @param int $type |
|
107
|
|
|
* |
|
108
|
|
|
* @return string |
|
109
|
|
|
*/ |
|
110
|
1 |
|
public static function nameShape($type) |
|
111
|
|
|
{ |
|
112
|
1 |
|
if (isset(self::$shape_names[$type])) { |
|
113
|
1 |
|
return self::$shape_names[$type]; |
|
114
|
|
|
} |
|
115
|
|
|
|
|
116
|
1 |
|
return sprintf('Shape %d', $type); |
|
117
|
|
|
} |
|
118
|
|
|
} |
|
119
|
|
|
|
phpmyadmin /
shapefile
