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Merge pull request #64 from klokantech/master

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Vector tiles and hybrid tiles support
This commit is contained in:
Dalibor Janák
2016-02-02 09:53:57 +01:00
parent 765e0d9ea3 250512168c
commit 8aa58cc6b9
2 changed files with 118 additions and 83 deletions
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4
README.md
View File

@@ -38,9 +38,9 @@ Requirements:
-------------
- Apache webserver (with mod_rewrite / .htaccess supported)
- PHP 5.2+
- PHP 5.2+ with SQLite module (php5-sqlite)
(or anther webserver implementing mod_rewrite rules and PHP)
(or another webserver implementing mod_rewrite rules and PHP)
Installation:
-------------

131
tileserver.php
View File

@@ -9,21 +9,21 @@
global $config;
$config['serverTitle'] = 'TileServer-php v1';
//$config['baseUrls'] = ['t0.server.com', 't1.server.com'];
//$config['baseUrls'] = array('t0.server.com', 't1.server.com');
Router::serve(array(
'/' => 'Server:getHtml',
'/test' => 'Server:getInfo',
'/html' => 'Server:getHtml',
'/:alpha/:number/:number/:number.grid.json' => 'Json:getUTFGrid',
'/:alpha.json' => 'Json:getJson',
'/:alpha.jsonp' => 'Json:getJsonp',
'/:alpha/:number/:number/:number.:alpha.json' => 'Json:getUTFGrid',
'/wmts' => 'Wmts:get',
'/wmts/1.0.0/WMTSCapabilities.xml' => 'Wmts:get',
'/wmts/:alpha/:number/:number/:number.:alpha' => 'Wmts:getTile',
'/wmts/:alpha/:alpha/:number/:number/:number.:alpha' => 'Wmts:getTile',
'/wmts/:alpha/:alpha/:alpha/:number/:number/:number.:alpha' => 'Wmts:getTile',
'/:alpha/:number/:number/:number.:alpha' => 'Wmts:getTile',
'/wmts/:alpha/:number/:number/:alpha' => 'Wmts:getTile',
'/wmts/:alpha/:alpha/:number/:number/:alpha' => 'Wmts:getTile',
'/wmts/:alpha/:alpha/:alpha/:number/:number/:alpha' => 'Wmts:getTile',
'/:alpha/:number/:number/:alpha' => 'Wmts:getTile',
'/tms' => 'Tms:getCapabilities',
'/tms/:alpha' => 'Tms:getLayerCapabilities',
));
@@ -92,13 +92,12 @@ class Server {
$this->layer = $params[1];
}
$params = array_reverse($params);
if (isset($params[3])) {
$this->z = $params[3];
$this->x = $params[2];
$this->y = $params[1];
}
if (isset($params[0])) {
$this->ext = $params[0];
if (isset($params[2])) {
$this->z = $params[2];
$this->x = $params[1];
$file = explode('.', $params[0]);
$this->y = $file[0];
$this->ext = isset($file[1]) ? $file[1] : NULL;
}
}
@@ -309,11 +308,12 @@ class Server {
$result = $this->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) {
//scale of tile (for retina tiles)
//if tile doesn't exist
//select scale of tile (for retina tiles)
$result = $this->db->query('select value from metadata where name="scale"');
$resultdata = $result->fetchColumn();
$scale = isset($resultdata) && $resultdata !== FALSE ? $resultdata : 1;
$this->getCleanTile($scale);
$this->getCleanTile($scale, $ext);
} else {
$result = $this->db->query('select value from metadata where name="format"');
$resultdata = $result->fetchColumn();
@@ -331,10 +331,21 @@ class Server {
echo $data;
}
} elseif ($this->isFileLayer($tileset)) {
$name = './' . $tileset . '/' . $z . '/' . $x . '/' . $y . '.' . $ext;
$name = './' . $tileset . '/' . $z . '/' . $x . '/' . $y;
$mime = 'image/';
if($ext != NULL){
$name .= '.' . $ext;
}
if ($fp = @fopen($name, 'rb')) {
if($ext != NULL){
$mime .= $ext;
}else{
//detect image type from file
$mimetypes = array('gif', 'jpeg', 'png');
$mime .= $mimetypes[exif_imagetype($name) - 1];
}
header('Access-Control-Allow-Origin: *');
header('Content-Type: image/' . $ext);
header('Content-Type: ' . $mime);
header('Content-Length: ' . filesize($name));
fpassthru($fp);
die;
@@ -344,14 +355,8 @@ class Server {
if(!isset($meta->scale)){
$meta->scale = 1;
}
if ($ext == 'pbf') {
header('HTTP/1.1 404 Not Found');
header('Content-Type: application/json; charset=utf-8');
echo '{"message":"Tile does not exist"}';
die;
}
$this->getCleanTile($meta->scale);
}
$this->getCleanTile($meta->scale, $ext);
} else {
header('HTTP/1.1 404 Not Found');
echo 'Server: Unknown or not specified dataset "'.$tileset.'"';
@@ -363,7 +368,15 @@ class Server {
* Returns clean tile
* @param integer $scale Default 1
*/
public function getCleanTile($scale = 1) {
public function getCleanTile($scale = 1, $format = 'png') {
switch ($format) {
case 'pbf':
header('HTTP/1.1 404 Not Found');
header('Content-Type: application/json; charset=utf-8');
echo '{"message":"Tile does not exist"}';
die;
case 'png':
default:
$tileSize = 256 * $scale;
$png = imagecreatetruecolor($tileSize, $tileSize);
imagesavealpha($png, true);
@@ -374,6 +387,7 @@ class Server {
imagepng($png);
die;
}
}
/**
* Returns tile's UTFGrid
@@ -392,20 +406,22 @@ class Server {
}
try {
$this->DBconnect($tileset . '.mbtiles');
$result = $this->db->query('SELECT grid FROM grids WHERE tile_column = ' . $x . ' AND tile_row = ' . $y . ' AND zoom_level = ' . $z);
if (!isset($result) || $result === FALSE) {
header('Access-Control-Allow-Origin: *');
echo '{}';
die;
} else {
$data = $result->fetchColumn();
$grid = gzuncompress($data);
$query = 'SELECT grid FROM grids WHERE tile_column = ' . $x . ' AND '
. 'tile_row = ' . $y . ' AND zoom_level = ' . $z;
$result = $this->db->query($query);
$data = $result->fetch(PDO::FETCH_ASSOC);
if ($data !== FALSE) {
$grid = gzuncompress($data['grid']);
$grid = substr(trim($grid), 0, -1);
//adds legend (data) to output
$grid .= ',"data":{';
$result = $this->db->query('SELECT key_name as key, key_json as json FROM grid_data WHERE zoom_level=' . $z . ' and tile_column=' . $x . ' and tile_row=' . $y);
$kquery = 'SELECT key_name as key, key_json as json FROM grid_data '
. 'WHERE zoom_level=' . $z . ' and '
. 'tile_column=' . $x . ' and tile_row=' . $y;
$result = $this->db->query($kquery);
while ($r = $result->fetch(PDO::FETCH_ASSOC)) {
$grid .= '"' . $r['key'] . '":' . $r['json'] . ',';
}
@@ -413,14 +429,18 @@ class Server {
header('Access-Control-Allow-Origin: *');
if (isset($_GET['callback']) && !empty($_GET['callback'])) {
header("Content-Type:text/javascript charset=utf-8");
header('Content-Type:text/javascript charset=utf-8');
echo $_GET['callback'] . '(' . $grid . ');';
} else {
header("Content-Type:text/javascript; charset=utf-8");
header('Content-Type:text/javascript; charset=utf-8');
echo $grid;
}
} else {
header('Access-Control-Allow-Origin: *');
echo '{}';
die;
}
} catch (PDOException $e) {
} catch (Exception $e) {
header('Content-type: text/plain');
print 'Error querying the database: ' . $e->getMessage();
}
@@ -470,8 +490,8 @@ class Server {
$maps = array_merge($this->fileLayer, $this->dbLayer);
header('Content-Type: text/html;charset=UTF-8');
echo '<!DOCTYPE html><html><head><meta charset="UTF-8"><title>' . $this->config['serverTitle'] . '</title>';
echo '<link rel="stylesheet" type="text/css" href="//tileserver.com/v1/index.css" />
<script src="//tileserver.com/v1/index.js"></script><body>
echo '<link rel="stylesheet" type="text/css" href="//cdn.klokantech.com/tileviewer/v1/index.css" />
<script src="//cdn.klokantech.com/tileviewer/v1/index.js"></script><body>
<script>tileserver({index:"' . $this->config['protocol'] . '://' . $this->config['baseUrls'][0] . '/index.json", tilejson:"' . $this->config['protocol'] . '://' . $this->config['baseUrls'][0] . '/%n.json", tms:"' . $this->config['protocol'] . '://' . $this->config['baseUrls'][0] . '/tms", wmts:"' . $this->config['protocol'] . '://' . $this->config['baseUrls'][0] . '/wmts"});</script>
<h1>Welcome to ' . $this->config['serverTitle'] . '</h1>
<p>This server distributes maps to desktop, web, and mobile applications.</p>
@@ -552,12 +572,17 @@ class Json extends Server {
$metadata['scheme'] = 'xyz';
$tiles = array();
foreach ($this->config['baseUrls'] as $url) {
$tiles[] = '' . $this->config['protocol'] . '://' . $url . '/' . $metadata['basename'] . '/{z}/{x}/{y}.' . $metadata['format'];
$url = '' . $this->config['protocol'] . '://' . $url . '/' .
$metadata['basename'] . '/{z}/{x}/{y}';
if(strlen($metadata['format']) <= 4){
$url .= '.' . $metadata['format'];
}
$tiles[] = $url;
}
$metadata['tiles'] = $tiles;
if ($this->isDBLayer($metadata['basename'])) {
$this->DBconnect($metadata['basename'] . '.mbtiles');
$res = $this->db->query('SELECT name FROM sqlite_master WHERE name="grids";');
$res = $this->db->query('SELECT * FROM grids LIMIT 1;');
if ($res) {
foreach ($this->config['baseUrls'] as $url) {
$grids[] = '' . $this->config['protocol'] . '://' . $url . '/' . $metadata['basename'] . '/{z}/{x}/{y}.grid.json';
@@ -763,8 +788,8 @@ class Wmts extends Server {
$title = (array_key_exists('name', $m)) ? $m['name'] : $basename;
$profile = $m['profile'];
$bounds = $m['bounds'];
$format = $m['format'];
$mime = ($format == 'jpg') ? 'image/jpeg' : 'image/png';
$format = $m['format'] == 'hybrid' ? 'jpgpng' : $m['format'];
$mime = ($format == 'jpg') ? 'image/jpeg' : 'image/' . $format;
if ($profile == 'geodetic') {
$tileMatrixSet = "WGS84";
} else {
@@ -773,6 +798,11 @@ class Wmts extends Server {
list( $maxx, $maxy ) = $mercator->LatLonToMeters($bounds[3], $bounds[2]);
$bounds3857 = array($minx, $miny, $maxx, $maxy);
}
$resourceUrlTemplate = $this->config['protocol'] . '://'
. $this->config['baseUrls'][0] . '/wmts/' . $basename . '/{TileMatrixSet}/{TileMatrix}/{TileCol}/{TileRow}';
if(strlen($format) <= 4){
$resourceUrlTemplate .= '.' . $format;
}
echo'
<Layer>
<ows:Title>' . $title . '</ows:Title>
@@ -788,8 +818,7 @@ class Wmts extends Server {
<TileMatrixSetLink>
<TileMatrixSet>' . $tileMatrixSet . '</TileMatrixSet>
</TileMatrixSetLink>
<ResourceURL format="' . $mime . '" resourceType="tile" template="' . $this->config['protocol'] . '://'
. $this->config['baseUrls'][0] . '/wmts/' . $basename . '/{TileMatrixSet}/{TileMatrix}/{TileCol}/{TileRow}.' . $format . '"/>
<ResourceURL format="' . $mime . '" resourceType="tile" template="' . $resourceUrlTemplate . '"/>
</Layer>';
}
echo '
@@ -1160,7 +1189,13 @@ class Wmts extends Server {
} else {
$format = $this->getGlobal('Format');
}
parent::renderTile($this->getGlobal('Layer'), $this->getGlobal('TileMatrix'), $this->getGlobal('TileRow'), $this->getGlobal('TileCol'), $format);
parent::renderTile(
$this->getGlobal('Layer'),
$this->getGlobal('TileMatrix'),
$this->getGlobal('TileRow'),
$this->getGlobal('TileCol'),
$format
);
} else {
parent::renderTile($this->layer, $this->z, $this->y, $this->x, $this->ext);
}
@@ -1272,7 +1307,7 @@ class Tms extends Server {
<TileFormat width="256" height="256" mime-type="' . $mime . '" extension="' . $m['format'] . '"/>
<TileSets profile="global-' . $m['profile'] . '">';
for ($zoom = $m['minzoom']; $zoom < $m['maxzoom'] + 1; $zoom++) {
echo '<TileSet href="' . $this->config['protocol'] . '://' . $this->config['baseUrls'] [0] . '/' . $m['basename'] . '/' . $zoom . '" units-per-pixel="' . $initialResolution / pow(2, $zoom) . '" order="' . $zoom . '" />';
echo '<TileSet href="' . $this->config['protocol'] . '://' . $this->config['baseUrls'][0] . '/' . $m['basename'] . '/' . $zoom . '" units-per-pixel="' . $initialResolution / pow(2, $zoom) . '" order="' . $zoom . '" />';
}
echo'</TileSets></TileMap>';
}
@@ -1446,7 +1481,7 @@ class Router {
$tokens = array(
':string' => '([a-zA-Z]+)',
':number' => '([0-9]+)',
':alpha' => '([a-zA-Z0-9-_@]+)'
':alpha' => '([a-zA-Z0-9-_@\.]+)'
);
//global $config;
foreach ($routes as $pattern => $handler_name) {