Learn how easy it is to sync an existing GitHub or Google Code repo to a SourceForge project! See Demo

Close

[deb837]: exif2kml_local.php Maximize Restore History

Download this file

exif2kml_local.php    161 lines (136 with data), 5.3 kB

  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
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
<?php
/*!*******************************************************************************
*! FILE NAME : exif2kml_local.php
*! DESCRIPTION : exracts location information into a KML file from images for Panorama Previewer
*! REVISION : 1.00
*! AUTHOR : Oleg Dzhimiev <oleg@elphel.com>
*! Copyright (C) 2012 Elphel, Inc
*! -----------------------------------------------------------------------------**
*! 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 3 of the License, or
*! (at your option) any later version.
*!
*! 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.
*!
*! The four essential freedoms with GNU GPL software:
*! * the freedom to run the program for any purpose
*! * the freedom to study how the program works and change it to make it do what you wish
*! * the freedom to redistribute copies so you can help your neighbor
*! * the freedom to distribute copies of your modified versions to others
*!
*! You should have received a copy of the GNU General Public License
*! along with this program. If not, see <http://www.gnu.org/licenses/>.
*! -----------------------------------------------------------------------------**
*/
require "pano.inc";
if (isset($_GET['path'])) $path = $_GET['path'];
else if (isset($argv[1])) $path = $argv[1];
else $path = "test";
if (isset($_GET['ext'])) $ext = $_GET['ext'];
else if (isset($argv[2])) $ext = $argv[2];
else $ext = "jp4";
$filename="map_points.kml";
echo "<pre>";
echo "directory=$path\n";
echo "filename= $filename\n";
chdir("/data/footage/$path");
$list = scandir(".");
//ascending sort
asort($list);
$files = array();
foreach ($list as $value) {
//echo $value."\n";
if ($value!="trash") $files = array_merge($files,process_folder($value,"jp4"));
}
$numNodes=count($files);
echo "nNodes= $numNodes\n";
$world=array();
for ($i=0;$i<$numNodes;$i++) {
$world[$i]['href']="http://127.0.0.1/footage/$path/".$files[$i];
$exif_data = exif_read_data($files[$i]);
$world[$i]['longitude']=(($exif_data['GPSLongitudeRef']=="W")?-1:1)*array2degrees($exif_data['GPSLongitude']);
$world[$i]['latitude']= (($exif_data['GPSLatitudeRef'] =="S")?-1:1)*array2degrees($exif_data['GPSLatitude']);
$world[$i]['altitude']= (($exif_data['GPSAltitudeRef'] =="1")?-1:1)*parseAlt($exif_data['GPSAltitude']);
if (isset($exif_data['GPSImgDirection'])) {
$world[$i]['heading']= parseAlt($exif_data['GPSImgDirection']); // add correction from magnetic?
$world[$i]['tilt']= (($exif_data['GPSDestLatitudeRef'] =="S")?-1:1)*array2degrees($exif_data['GPSDestLatitude'])+90.0;
if ($world[$i]['tilt']<0) $world[$i]['tilt']==0;
else if ($world[$i]['tilt']>180) $world[$i]['tilt']=180;
$world[$i]['roll']=(($exif_data['GPSDestLongitudeRef']=="W")?-1:1)*array2degrees($exif_data['GPSDestLongitude']);
}else{
$world[$i]['heading']=0;
$world[$i]['tilt']=90;
$world[$i]['roll']=0;
}
}
// $file=fopen ($filename,'w');
// fwrite($file,generateKML());
// fclose($file);
// works by a couple microseconds slower
file_put_contents($filename,generateKML());
chmod($filename,0666);
function array2degrees($dms) {
$round=1000000;
$d=explode('/',$dms[0]);
$m=explode('/',$dms[1]);
$s=explode('/',$dms[2]);
$rslt= $d[0]/$d[1]+($m[0]/$m[1])/60.0+($s[0]/$s[1])/3600.0;
return round($round*$rslt)/$round;
}
function parseAlt($alt) {
$round=1000000;
$a=explode('/',$alt);
$rslt= $a[0]/$a[1];
return round($round*$rslt)/$round;
}
function generateKML($index=-1) {
global $world, $map, $numNodes;
if ($index<0) $indices=range(0,$numNodes-1);
else $indices=array_merge(array(0=>$index),$map[$index]);
$kml=<<<HEADER
<?xml version="1.0" encoding="UTF-8"?>
<kml xmlns="http://earth.google.com/kml/2.2">
<Document>
HEADER;
foreach ($indices as $i) {
$kml.= "<PhotoOverlay>\n";
$kml.= " <Camera>\n";
$kml.=sprintf(" <longitude>%s</longitude>\n",$world[$i]['longitude']);
$kml.=sprintf(" <latitude>%s</latitude>\n",$world[$i]['latitude']);
$kml.=sprintf(" <altitude>%s</altitude>\n",$world[$i]['altitude']);
$kml.=sprintf(" <heading>%s</heading>\n",$world[$i]['heading']);
$kml.=sprintf(" <tilt>%s</tilt>\n",$world[$i]['tilt']);
$kml.=sprintf(" <roll>%s</roll>\n",$world[$i]['roll']);
$kml.= " </Camera>\n";
$kml.= " <Icon>\n";
$kml.=sprintf(" <href>%s</href>\n",$world[$i]['href']);
$kml.= " </Icon>\n";
$kml.= "</PhotoOverlay>\n";
}
$kml.=<<<TRAILER
</Document>
</kml>
TRAILER;
return ($kml);
}
function process_folder($file,$type) {
$arr = array();
$ext=get_file_extension($file);
if (substr($file,0,1)!=".") {
if ($ext=="") {
if (is_dir($file)) {
$arr = glob("$file/*_1.jp4");
}
}
}
return $arr;
}
function get_file_extension($filename) {
//return substr(strrchr($filename, '.'), 1);
return pathinfo($filename, PATHINFO_EXTENSION);
}
?>