mirror of
https://github.com/klokantech/tileserver-php.git
synced 2025-08-04 05:37:57 +02:00
Added basic support for UTFgrid for url {server}/{layer}.mbtiles/{z}/{x}/{y}.grid
This commit is contained in:
Dalibor Janák
@@ -1,4 +1,5 @@
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<?php
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<?php
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// Based on: https://github.com/Zverik/mbtiles-php
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// Based on: https://github.com/Zverik/mbtiles-php
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// Read: https://github.com/klokantech/tileserver-php/issues/1
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// Read: https://github.com/klokantech/tileserver-php/issues/1
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// TODO: clean the code!!!
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// TODO: clean the code!!!
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@@ -13,69 +14,112 @@ if (!is_file($_GET['tileset'])) {
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// header("Content-type: image/png");
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// header("Content-type: image/png");
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//print("\x89PNG\r\n\x1a\n\x00\x00\x00\rIHDR\x00\x00\x00\x01\x00\x00\x00\x01\x08\x06\x00\x00\x00\x1f\x15\xc4\x89\x00\x00\x00\rIDAT\x08\xd7c````\x00\x00\x00\x05\x00\x01^\xf3*:\x00\x00\x00\x00IEND\xaeB`\x82");
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//print("\x89PNG\r\n\x1a\n\x00\x00\x00\rIHDR\x00\x00\x00\x01\x00\x00\x00\x01\x08\x06\x00\x00\x00\x1f\x15\xc4\x89\x00\x00\x00\rIDAT\x08\xd7c````\x00\x00\x00\x05\x00\x01^\xf3*:\x00\x00\x00\x00IEND\xaeB`\x82");
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}
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}
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$tileset = $_GET['tileset'];
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if( isset($_GET['tileset']) ) {
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if (isset($_GET['tileset'])) {
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$tileset = $_GET['tileset'];
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$flip = true;
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$tileset = $_GET['tileset'];
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try {
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$flip = true;
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$db = new PDO('sqlite:'.$tileset,'','',array(PDO::ATTR_PERSISTENT => true));
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try {
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if( !isset($db) ) {
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$db = new PDO('sqlite:' . $tileset, '', '', array(PDO::ATTR_PERSISTENT => true));
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header('Content-type: text/plain');
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if (!isset($db)) {
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print 'Incorrect tileset name: '.$_GET['tileset'];
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header('Content-type: text/plain');
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exit;
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print 'Incorrect tileset name: ' . $_GET['tileset'];
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}
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exit;
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// http://c.tile.openstreetmap.org/12/2392/1190.png
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}
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$z = floatval($_GET['z']);
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// http://c.tile.openstreetmap.org/12/2392/1190.png
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$y = floatval($_GET['y']);
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$z = floatval($_GET['z']);
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$x = floatval($_GET['x']);
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$y = floatval($_GET['y']);
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if( $flip ) {
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$x = floatval($_GET['x']);
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$y = pow(2, $z) - 1 - $y;
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if ($flip) {
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}
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$y = pow(2, $z) - 1 - $y;
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$result = $db->query('select tile_data as t from tiles where zoom_level='.$z.' and tile_column='.$x.' and tile_row='.$y);
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}
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$data = $result->fetchColumn();
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if ($_GET['ext'] != 'grid' && $_GET['ext'] != 'json') {
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if( !isset($data) || $data === FALSE ) {
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// TODO: Put here ready to use empty tile!!!
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$png = imagecreatetruecolor(256, 256);
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$result = $db->query('select tile_data as t from tiles where zoom_level=' . $z . ' and tile_column=' . $x . ' and tile_row=' . $y);
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imagesavealpha($png, true);
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$data = $result->fetchColumn();
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$trans_colour = imagecolorallocatealpha($png, 0, 0, 0, 127);
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if (!isset($data) || $data === FALSE) {
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imagefill($png, 0, 0, $trans_colour);
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// TODO: Put here ready to use empty tile!!!
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header('Content-type: image/png');
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$png = imagecreatetruecolor(256, 256);
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imagepng($png);
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imagesavealpha($png, true);
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//header($_SERVER['SERVER_PROTOCOL'].' 404 Not Found');
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$trans_colour = imagecolorallocatealpha($png, 0, 0, 0, 127);
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} else {
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imagefill($png, 0, 0, $trans_colour);
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$result = $db->query('select value from metadata where name="format"');
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header('Content-type: image/png');
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$resultdata = $result->fetchColumn();
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imagepng($png);
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$format = isset($resultdata) && $resultdata !== FALSE ? $resultdata : 'png';
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//header($_SERVER['SERVER_PROTOCOL'].' 404 Not Found');
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if( $format == 'jpg' )
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} else {
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$format = 'jpeg';
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$result = $db->query('select value from metadata where name="format"');
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header('Content-type: image/'.$format);
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$resultdata = $result->fetchColumn();
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print $data;
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$format = isset($resultdata) && $resultdata !== FALSE ? $resultdata : 'png';
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}
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if ($format == 'jpg')
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} catch( PDOException $e ) {
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$format = 'jpeg';
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header('Content-type: text/plain');
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header('Content-type: image/' . $format);
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print 'Error querying the database: '.$e->getMessage();
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print $data;
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}
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}
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} elseif ($_GET['ext'] == 'grid' || $_GET['ext'] == 'json') {
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//Get and return UTFgrid
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$result = $db->query('SELECT grid FROM grids WHERE tile_column = ' . $x . ' AND tile_row = ' . $y . ' AND zoom_level = ' . $z);
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$data = $result->fetchColumn();
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if (!isset($data) || $data === FALSE) {
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// if not exists grid data return empty json
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header('Access-Control-Allow-Origin: *');
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echo 'grid({});';
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die;
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} else {
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$grid = gzuncompress($data);
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$grid = substr(trim($grid), 0, -1);
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//adds legend (data) to output
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$grid .= ',"data":{';
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$result = $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=' . $y);
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while ($r = $result->fetch(PDO::FETCH_ASSOC)) {
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$grid .= '"' . $r['key'] . '":' . $r['json'] . ',';
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}
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$grid = rtrim($grid, ',') . '}}';
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// CORS header
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header('Access-Control-Allow-Origin: *');
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//TODO: Process callback and ext but first in htaccess or route
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if (isset($_GET['callback'])) {
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echo $_GET['callback'] . '(' . $grid . ');';
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} elseif ($_GET['ext'] == 'jsonp') {
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echo 'grid(' . $grid . ');';
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} else {
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echo $grid;
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}
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die;
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}
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}
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} catch (PDOException $e) {
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header('Content-type: text/plain');
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print 'Error querying the database: ' . $e->getMessage();
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}
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}
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}
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/*
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/*
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function getbaseurl() {
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function getbaseurl() {
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return 'http://'.$_SERVER['HTTP_HOST'].preg_replace('/\/(1.0.0\/)?[^\/]*$/','/',$_SERVER['REQUEST_URI']);
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return 'http://'.$_SERVER['HTTP_HOST'].preg_replace('/\/(1.0.0\/)?[^\/]*$/','/',$_SERVER['REQUEST_URI']);
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}
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}
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*/
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*/
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function readparams( $db ) {
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$params = array();
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function readparams($db) {
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$result = $db->query('select name, value from metadata');
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$params = array();
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while ($row = $result->fetch(PDO::FETCH_ASSOC)) {
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$result = $db->query('select name, value from metadata');
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$params[$row['name']] = $row['value'];
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while ($row = $result->fetch(PDO::FETCH_ASSOC)) {
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}
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$params[$row['name']] = $row['value'];
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return $params;
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}
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return $params;
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}
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}
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function readzooms( $db ) {
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function readzooms($db) {
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$zooms = array();
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$zooms = array();
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$result = $db->query('select zoom_level from tiles group by zoom_level order by zoom_level');
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$result = $db->query('select zoom_level from tiles group by zoom_level order by zoom_level');
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while ($zoom = $result->fetchColumn()) {
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while ($zoom = $result->fetchColumn()) {
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$zooms[] = $zoom;
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$zooms[] = $zoom;
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}
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}
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return $zooms;
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return $zooms;
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}
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}
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?>
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?>
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