dtux__jpg2gpx/jpg2gpx.php

<?php
/**
 * Documentation, License etc.
 *
 * @package jpg2gpx
 */
//exiftool -c "%.6f" /mnt/perso/Nextcloud/Chine_2019/chutes_hu_kou/IMG_20190920_*.jpg | grep GPS | grep Position
setlocale(LC_ALL, 'fr_FR');
CONST EOL = "\n";


$dir="/mnt/perso/Nextcloud";
$list = array();
dirrecurse( $dir );
//$dir = new RecursiveDirectoryIterator($path);
//$files = new RecursiveIteratorIterator($dir);
//echo "[$path]\n";
//foreach ($files as $file) {
//    echo " ├ $file\n";
//}
function dirrecurse( $dir )
{
	global $list;
	$x =0;
	$paths = new RecursiveIteratorIterator(new RecursiveDirectoryIterator( $dir, FilesystemIterator::SKIP_DOTS ));

	foreach ($paths as $file)
	{
		$x +=1;
		$gpscoord=readgps($x, $file);
	}
	exportGPX($list);
}

function readgps( $x, $path )
{
	global $list;
	$flag = false;
	//echo $path .EOL;
	if (exif_imagetype($path) == 2)
	{
		$datas = exif_read_data($path, "ANY_TAG");
		//echo "$path\n";
		if (! empty($datas["GPSLatitude"]))
		{
			$list[$x]["name"] = $path;
			print_r( $datas );
			$latitude = convert2decimal( $datas["GPSLatitude"][0], $datas["GPSLatitude"][1],$datas["GPSLatitude"][2] );
			$dlatitude = $datas["GPSLatitudeRef"];
			$longitude = convert2decimal( $datas["GPSLongitude"][0], $datas["GPSLongitude"][1],$datas["GPSLongitude"][2] );
			$dlongitude = $datas["GPSLongitudeRef"];


			if ($dlongitude == "S")
			{
				$list[$x]["longitude"] = -$longitude;
			}else
			{
				$list[$x]["longitude"] = $longitude;
			}
			if ($dlatitude == "O")
			{
				$list[$x]["latitude"] = -$latitude;
			}else
			{
				$list[$x]["latitude"] = $latitude;
			}
			if ( ! empty($datas["GPSAltitude"]) )
			{
				$altitude = str_replace( ",", "", number_format( transform( $datas["GPSAltitude"] ),2 ));
				$list[$x]["altitude"] = $altitude;
			}else
			{
				$list[$x]["altitude"] = "";
			}
			$time = gpstime( $datas["GPSTimeStamp"] );
			//$datetime = new DateTime();
			$date = $datas["GPSDateStamp"] . " " . $time;
			$datetime = date_create_from_format("Y:m:d H:i:s", $date, new DateTimeZone( "UTC" ) );
			$list[$x]["datetimeUTC"] = date( "c", $datetime->getTimestamp());
			//echo $date . EOL;
			if ( ! empty($datas["DateTime"]) )
			{
				$datetime_local = date_create_from_format("Y:m:d H:i:s", $datas["DateTime"]);
			}elseif ( ! empty($datas["DateTimeOriginal"]) )
			{
				$datetime_local = date_create_from_format("Y:m:d H:i:s", $datas["DateTimeOriginal"]);
			}else
			{
				$flag = true;
			}
			if ( $flag = false )
			{
				$list[$x]["datetimelocal"] = date( "c", $datetime_local->getTimestamp());
				$dh = $datetime->diff( $datetime_local );
				$decalagehoraire = $dh->h;

				if ( $dh->i >55)
				{
					$decalagehoraire += 1;
				}
				if ( $decalagehoraire >=0 )
				{
					$decalagehoraire = "+" . str_pad(abs($decalagehoraire), 4, "0", STR_PAD_BOTH );
				}else
				{
					$decalagehoraire = "-" . str_pad(abs($decalagehoraire), 4, "0", STR_PAD_BOTH );
				}
				$list[$x]["fuseauhoraire"] = $decalagehoraire;
			}else
			{
				$decalagehoraire = "";
			}


			$datetime->setTimeZone(new DateTimeZone('Europe/Paris'));
			echo $path . EOL;
			echo strftime( "le %A %c heure de Paris", $datetime->getTimestamp() ) . EOL;
			echo strftime( "le %A %c heure locale", $datetime_local->getTimestamp() ) . EOL;
			echo "Fuseau horaire : " . $decalagehoraire .EOL;
			echo "Latitude : $latitude $dlatitude\nLongitude : $longitude $dlongitude\nAltitude : $altitude\n";
			//print_r($datas);

		}
	}
}

function convert2decimal( $d, $m, $s)
{
	return transform( $d ) +  transform($m)/60 + transform($s)/3600;
}

function transform($a)
{
	$b = explode( "/", $a);
	$r = floatval($b[0]) /  floatval($b[1]);
	return $r;
}

function gpstime( $a )
{
	$h = explode("/", $a[0]);
	$m = explode("/", $a[1]);
	$s = explode("/", $a[2]);
	return str_pad( $h[0], 2 ,"0", STR_PAD_LEFT ) . ":" . str_pad( $m[0], 2 ,"0", STR_PAD_LEFT ) . ":" . str_pad( $s[0], 2 ,"0", STR_PAD_LEFT );
}

function exportKML( $list )
{
	$enteteKML = '<?xml version="1.0" encoding="UTF-8"?><kml xmlns="http://www.opengis.net/kml/2.2">' . EOL;
	print_r($list);
	if ( ! $fh = fopen("export_jpg2gpx_" . date("YmdHis") . ".kml", "w") )
	{
		$erreur = error_get_last();
		echo "Erreur fopen ligne " . __LINE__ . " : " . $erreur["message"] . EOL;
		exit (1);
	}
	fwrite( $fh, $enteteKML );

	foreach ( $list as $ligne )
	{
		$text = "<Placemark>" . EOL .  "<name>" . basename($ligne["name"]) . "</name>" . EOL . "<description>" . $ligne["name"] . EOL . "Altitude : " . $ligne["altitude"] . EOL . "Heure UTC : " . $ligne["datetimeUTC"] . EOL . "Heure locale :" . $ligne["datetimelocal"] . EOL . "Fuseau horaire : " . $ligne["fuseauhoraire"] . EOL . "Généré automatiquement</description>" .EOL;
		$text .= "  <point>" . EOL . "    <coordinates>" . $ligne["longitude"] . "," . $ligne["latitude"] . "</coordinates>" . EOL . "  </point>" . EOL . "  </Placemark>" . EOL;
		fwrite( $fh, $text );
	}
	fwrite( $fh, "</kml>" );
}

function exportGPX( $list )
{
	$enteteXML = '<?xml version="1.1" encoding="UTF-8" standalone="no" ?><gpx version="1.1" creator="jpg2gpx" xmlns="http://www.topografix.com/GPX/1/1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.topografix.com/GPX/1/1 http://www.topografix.com/GPX/1/1/gpx.xsd"><metadata><name>export_jpg2gpx_' . date("YmdHis") . '</name></metadata>' . EOL;

	if ( ! $fh = fopen("export_jpg2gpx_" . date("YmdHis") . ".gpx", "w") )
	{
		$erreur = error_get_last();
		echo "Erreur fopen ligne " . __LINE__ . " : " . $erreur["message"] . EOL;
		exit (1);
	}
	fwrite( $fh, $enteteXML );

	foreach ( $list as $ligne )
	{
		$text = '<wpt lat="' . str_replace( ",", ".", $ligne["latitude"]) . '" lon="'  . str_replace( ",", ".", $ligne["longitude"]) . '">';
		$text .= "<ele>" . $ligne["altitude"] . "</ele>";
		$text .= "<time>" . $ligne["datetimeUTC"] . "</time>" . EOL;
		$text .= "<name>" . basename($ligne["name"]) . "</name>" . EOL;
		$text .= "<cmt>Généré automatiquement</cmt>" . EOL;
		$text .= "<desc>" . $ligne["name"] . EOL;
		if ( ! empty($ligne["datetimelocal"]) )
		{
			$text .= "    Heure locale :" . $ligne["datetimelocal"];
		}
		$text .= "</desc>" . EOL;
		$text .= "</wpt>" .EOL;
		fwrite( $fh, $text );
	}
	fwrite( $fh, "</gpx>" );
}

function remplacevirgule ( $f )
{

}