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Initial .mbtiles implementation.

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This commit is contained in:
Petr Pridal
2012-08-12 20:28:23 +02:00
parent efcb733670
commit 0d4d50ab9c
6 changed files with 142 additions and 56 deletions
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3
.htaccess
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@@ -30,8 +30,7 @@ RewriteRule ^([\w\d\._-]+)/.+?(\d+)/(\d+)/(\d+)\.(\w+)$ $1/$2/$3/$4.$5 [L]
# MBTiles support at /layer/z/x/y.ext - loads the tile from mbtiles with php
# TODO: serve also 404 errors for tiles
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^([^\/]+)\/(\d+)\/(\d+)\/(\d+)\.(\w+)$ tileserver-mbtiles.php?tileset=$1&z=$2&x=$3&y=$4&ext=$5 [L]
RewriteRule ^([^\/]+\.mbtiles)\/.*?(\d+)\/(\d+)\/(\d+)\.(\w+)$ tileserver-mbtiles.php?tileset=$1&z=$2&x=$3&y=$4&ext=$5 [L]
# TODO: use mod_sqlite if available to map the tiles to URL directly by apache
# WMTS KVP

132
tileserver-mbtiles.for.php Normal file
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@@ -0,0 +1,132 @@
<?php
// Based on: https://github.com/Zverik/mbtiles-php
// Read: https://github.com/klokantech/tileserver-php/issues/1
// TODO: clean the code!!!
if (!is_file($_GET['tileset'] . '.mbtiles')) {
header('HTTP/1.0 404 Not Found');
echo "<h1>404 Not Found</h1>";
echo "TileServer.php could not found what you requested.";
die();
// TODO: if ($_GET['ext'] == 'png') { ...
// TODO: better image 256x256px !!!
// header("Content-type: image/png");
//print("\x89PNG\r\n\x1a\n\x00\x00\x00\rIHDR\x00\x00\x00\x01\x00\x00\x00\x01\x08\x06\x00\x00\x00\x1f\x15\xc4\x89\x00\x00\x00\rIDAT\x08\xd7c````\x00\x00\x00\x05\x00\x01^\xf3*:\x00\x00\x00\x00IEND\xaeB`\x82");
}
if (isset($_GET['tileset']) && preg_match('/^[\w\d_-]+$/', $_GET['tileset'])) {
$tileset = $_GET['tileset'];
$flip = true;
try {
$db = new PDO('sqlite:' . $tileset . '.mbtiles', '', '', array(
PDO::ATTR_PERSISTENT => true
));
if (!isset($db)) {
header('Content-type: text/plain');
print 'Not possible to connect to SQLite database in file: ' . $_GET['tileset'] . '.mbtiles';
exit;
}
// http://c.tile.openstreetmap.org/12/2392/1190.png
$z = floatval($_GET['z']);
$y = floatval($_GET['y']);
$x = floatval($_GET['x']);
if ($flip) {
$y = pow(2, $z) - 1 - $y;
}
$result = $db->query('select tile_data as t from tiles where zoom_level=' . $z . ' and tile_column=' . $x . ' and tile_row=' . $y);
$data = $result->fetchColumn();
if (!isset($data) || $data === FALSE) {
// TODO: Put here ready to use empty tile!!!
$png = imagecreatetruecolor(256, 256);
imagesavealpha($png, true);
$trans_colour = imagecolorallocatealpha($png, 0, 0, 0, 127);
imagefill($png, 0, 0, $trans_colour);
header('Content-type: image/png');
imagepng($png);
//header($_SERVER['SERVER_PROTOCOL'].' 404 Not Found');
} else {
$result = $db->query('select value from metadata where name="format"');
$resultdata = $result->fetchColumn();
$format = isset($resultdata) && $resultdata !== FALSE ? $resultdata : 'png';
if ($format == 'jpg')
$format = 'jpeg';
header('Content-type: image/' . $format);
print $data;
}
}
catch (PDOException $e) {
header('Content-type: text/plain');
print 'Error querying the database: ' . $e->getMessage();
}
}
/*
?><TileMap version="1.0.0" tilemapservice="<?php echo $basetms ?>1.0.0/">
<Title><?php echo htmlspecialchars($params['name']) ?></Title>
<Abstract><?php echo htmlspecialchars($params['description']) ?></Abstract>
<SRS>OSGEO:41001</SRS>
<BoundingBox minx="-180" miny="-90" maxx="180" maxy="90" />
<Origin x="0" y="0"/>
<TileFormat width="256" height="256" mime-type="image/<?php echo $params['format'] == 'jpg' ? 'jpeg' : 'png' ?>" extension="<?php echo $params['format']?>"/>
<TileSets profile="global-mercator">
<?php foreach( readzooms($db) as $zoom ) { ?>
<TileSet href="<?php echo $basetms.'1.0.0/'.$layer.'/'.$zoom ?>" units-per-pixel="<?php echo 78271.516 / pow(2, $zoom) ?>" order="<?php echo $zoom ?>" />
<?php } ?>
</TileSets>
</TileMap>
<?php
} catch( PDOException $e ) {}
}
} else {
// show list of all tilesets along with links
print '<h2>MBTiles PHP proxy</h2>';
if( $handle = opendir('.') ) {
$found = false;
while( ($file = readdir($handle)) !== false ) {
if( preg_match('/^[\w\d_-]+\.mbtiles$/', $file) && is_file($file) ) {
try {
$db = new PDO('sqlite:'.$file);
$params = readparams($db);
$zooms = readzooms($db);
$db = null;
print '<h3>'.htmlspecialchars($params['name']).'</h3>';
if( isset($params['description']) )
print '<p>'.htmlspecialchars($params['description']).'</p>';
print '<p>Type: '.$params['type'].', format: '.$params['format'].', version: '.$params['version'].'</p>';
if( isset($params['bounds']) )
print '<p>Bounds: '.str_replace(',', ', ',$params['bounds']).'</p>';
print '<p>Zoom levels: '.implode(', ', $zooms).'</p>';
print '<p>OpenLayers: <tt>new OpenLayers.Layer.OSM("'.htmlspecialchars($params['name']).'", "'.getbaseurl().preg_replace('/\.mbtiles/','',$file).'/${z}/${x}/${y}", {numZoomLevels: '.(end($zooms)+1).', isBaseLayer: '.($params['type']=='baselayer'?'true':'false').'});</tt></p>';
print '<p>TMS: <tt>http://'.$_SERVER['HTTP_HOST'].preg_replace('/\/[^\/]+$/','/',$_SERVER['REQUEST_URI']).'1.0.0/'.preg_replace('/\.mbtiles/','',$file).'</tt></p>';
} catch( PDOException $e ) {}
}
}
} else {
print 'Error opening script directory.';
}
}
function getbaseurl() {
return 'http://'.$_SERVER['HTTP_HOST'].preg_replace('/\/(1.0.0\/)?[^\/]*$/','/',$_SERVER['REQUEST_URI']);
}
*/
function readparams($db)
{
$params = array();
$result = $db->query('select name, value from metadata');
while ($row = $result->fetch(PDO::FETCH_ASSOC)) {
$params[$row['name']] = $row['value'];
}
return $params;
}
function readzooms($db)
{
$zooms = array();
$result = $db->query('select zoom_level from tiles group by zoom_level order by zoom_level');
while ($zoom = $result->fetchColumn()) {
$zooms[] = $zoom;
}
return $zooms;
}
?>

51
tileserver-mbtiles.php
View File

@@ -3,7 +3,7 @@
// Read: https://github.com/klokantech/tileserver-php/issues/1
// TODO: clean the code!!!
if (!is_file($_GET['tileset'].'.mbtiles')) {
if (!is_file($_GET['tileset'])) {
header('HTTP/1.0 404 Not Found');
echo "<h1>404 Not Found</h1>";
echo "TileServer.php could not found what you requested.";
@@ -14,11 +14,11 @@ if (!is_file($_GET['tileset'].'.mbtiles')) {
//print("\x89PNG\r\n\x1a\n\x00\x00\x00\rIHDR\x00\x00\x00\x01\x00\x00\x00\x01\x08\x06\x00\x00\x00\x1f\x15\xc4\x89\x00\x00\x00\rIDAT\x08\xd7c````\x00\x00\x00\x05\x00\x01^\xf3*:\x00\x00\x00\x00IEND\xaeB`\x82");
}
if( isset($_GET['tileset']) && preg_match('/^[\w\d_-]+$/', $_GET['tileset']) ) {
if( isset($_GET['tileset']) ) {
$tileset = $_GET['tileset'];
$flip = true;
try {
$db = new PDO('sqlite:'.$tileset.'.mbtiles','','',array(PDO::ATTR_PERSISTENT => true));
$db = new PDO('sqlite:'.$tileset,'','',array(PDO::ATTR_PERSISTENT => true));
if( !isset($db) ) {
header('Content-type: text/plain');
print 'Incorrect tileset name: '.$_GET['tileset'];
@@ -57,51 +57,6 @@ if( isset($_GET['tileset']) && preg_match('/^[\w\d_-]+$/', $_GET['tileset']) ) {
}
}
/*
?><TileMap version="1.0.0" tilemapservice="<?php echo $basetms ?>1.0.0/">
<Title><?php echo htmlspecialchars($params['name']) ?></Title>
<Abstract><?php echo htmlspecialchars($params['description']) ?></Abstract>
<SRS>OSGEO:41001</SRS>
<BoundingBox minx="-180" miny="-90" maxx="180" maxy="90" />
<Origin x="0" y="0"/>
<TileFormat width="256" height="256" mime-type="image/<?php echo $params['format'] == 'jpg' ? 'jpeg' : 'png' ?>" extension="<?php echo $params['format']?>"/>
<TileSets profile="global-mercator">
<?php foreach( readzooms($db) as $zoom ) { ?>
<TileSet href="<?php echo $basetms.'1.0.0/'.$layer.'/'.$zoom ?>" units-per-pixel="<?php echo 78271.516 / pow(2, $zoom) ?>" order="<?php echo $zoom ?>" />
<?php } ?>
</TileSets>
</TileMap>
<?php
} catch( PDOException $e ) {}
}
} else {
// show list of all tilesets along with links
print '<h2>MBTiles PHP proxy</h2>';
if( $handle = opendir('.') ) {
$found = false;
while( ($file = readdir($handle)) !== false ) {
if( preg_match('/^[\w\d_-]+\.mbtiles$/', $file) && is_file($file) ) {
try {
$db = new PDO('sqlite:'.$file);
$params = readparams($db);
$zooms = readzooms($db);
$db = null;
print '<h3>'.htmlspecialchars($params['name']).'</h3>';
if( isset($params['description']) )
print '<p>'.htmlspecialchars($params['description']).'</p>';
print '<p>Type: '.$params['type'].', format: '.$params['format'].', version: '.$params['version'].'</p>';
if( isset($params['bounds']) )
print '<p>Bounds: '.str_replace(',', ', ',$params['bounds']).'</p>';
print '<p>Zoom levels: '.implode(', ', $zooms).'</p>';
print '<p>OpenLayers: <tt>new OpenLayers.Layer.OSM("'.htmlspecialchars($params['name']).'", "'.getbaseurl().preg_replace('/\.mbtiles/','',$file).'/${z}/${x}/${y}", {numZoomLevels: '.(end($zooms)+1).', isBaseLayer: '.($params['type']=='baselayer'?'true':'false').'});</tt></p>';
print '<p>TMS: <tt>http://'.$_SERVER['HTTP_HOST'].preg_replace('/\/[^\/]+$/','/',$_SERVER['REQUEST_URI']).'1.0.0/'.preg_replace('/\.mbtiles/','',$file).'</tt></p>';
} catch( PDOException $e ) {}
}
}
} else {
print 'Error opening script directory.';
}
}
function getbaseurl() {
return 'http://'.$_SERVER['HTTP_HOST'].preg_replace('/\/(1.0.0\/)?[^\/]*$/','/',$_SERVER['REQUEST_URI']);
}

4
tileserver-tms.php
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@@ -26,7 +26,7 @@ if ($layer === ""):
<TileMaps>
<?php
foreach ($maps as $m) {
$basename = str_replace('.mbtiles', '', $m['basename']);
$basename = $m['basename'];
$title = (array_key_exists('name', $m )) ? $m['name'] : $basename;
$profile = $m['profile'];
if ($profile == 'geodetic')
@@ -45,7 +45,7 @@ die;
# ---------
else:
$m = layer($layer);
$basename = str_replace('.mbtiles', '', $m['basename']);
$basename = $m['basename'];
$title = (array_key_exists('name', $m )) ? $m['name'] : $basename;
$description = (array_key_exists('description', $m )) ? $m['description'] : "";
$bounds = $m['bounds'];

2
tileserver-wmts.php
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@@ -70,7 +70,7 @@ echo "<?xml version=\"1.0\" encoding=\"UTF-8\" ?>\n"; ?>
<?php
foreach ($maps as $m) {
$basename = str_replace('.mbtiles', '', $m['basename']);
$basename = $m['basename'];
$title = (array_key_exists('name', $m )) ? $m['name'] : $basename;
$profile = $m['profile'];
$bounds = $m['bounds'];

6
tileserver.php
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@@ -83,7 +83,7 @@ You can easily convert existing geodata (GeoTIFF, ECW, MrSID, etc) to this tile
echo "<h3>Available maps</h3>";
echo "<ul>";
foreach ($maps as $map) {
// echo "<li><a href=\"".str_replace('.mbtiles', '', $map['basename'])."\">".$map['name']."</a>" ;
// echo "<li><a href=\"".$map['basename']."\">".$map['name']."</a>" ;
echo "<li>".$map['name'];
}
echo "</ul>";
@@ -195,7 +195,7 @@ function metadataTileJson( $metadata ) {
$metadata['sheme'] = 'xyz';
$tiles = array();
foreach($config['baseUrls'] as $url)
$tiles[] = $url.str_replace('.mbtiles', '', $metadata['basename']).'/{z}/{x}/{y}.'.$metadata['format'];
$tiles[] = $url.$metadata['basename'].'/{z}/{x}/{y}.'.$metadata['format'];
#print_r($tiles);
$metadata['tiles'] = $tiles;
return $metadata;
@@ -405,4 +405,4 @@ class GlobalMercator
}
}
$mercator = new GlobalMercator();
?>
?>