staticMapLite

commit 76d853d1b56355b25936587da21a7f46711d9bfe Author: rac98 Date: Fri Sep 18 10:06:55 2009 +0000 initial git-svn-id: http://svn.code.sf.net/p/staticmaplite/code@1 3c7674d3-d6c2-4d0e-87b7-95661b9333b9 diff --git a/images/markers/lightblue1.png b/images/markers/lightblue1.png new file mode 100644 index 0000000..bb7ecdf Binary files /dev/null and b/images/markers/lightblue1.png differ diff --git a/images/markers/lightblue2.png b/images/markers/lightblue2.png new file mode 100644 index 0000000..47ab258 Binary files /dev/null and b/images/markers/lightblue2.png differ diff --git a/images/markers/lightblue3.png b/images/markers/lightblue3.png new file mode 100644 index 0000000..21f5912 Binary files /dev/null and b/images/markers/lightblue3.png differ diff --git a/images/markers/lightblue4.png b/images/markers/lightblue4.png new file mode 100644 index 0000000..aff25c3 Binary files /dev/null and b/images/markers/lightblue4.png differ diff --git a/images/markers/lightblue5.png b/images/markers/lightblue5.png new file mode 100644 index 0000000..09e195d Binary files /dev/null and b/images/markers/lightblue5.png differ diff --git a/images/osm_logo.png b/images/osm_logo.png new file mode 100644 index 0000000..be12b27 Binary files /dev/null and b/images/osm_logo.png differ diff --git a/index.html b/index.html new file mode 100644 index 0000000..c61052b --- /dev/null +++ b/index.html @@ -0,0 +1,122 @@ + + + + + + staticMapLite + + + + +

+ +

+ staticMapLite - simple map for your website +

+ This image was created using the following simple <img> tag: +

<img src="staticmap.php?center=40.714728,-73.998672&zoom=14&size=865x512&maptype=mapnik" />

+ Place Markers +

+ +

Add markers by appending them to the image URL: +

markers=40.702147,-74.015794,lightblue1|40.711614,-74.012318,lightblue2|40.718217,-73.998284,lightblue3

+ Use Different Map Styles (Tile Sources) +

+ +

maptype=mapnik

maptype=osmarenderer

maptype=cycle

+
+

+ +

+ + \ No newline at end of file diff --git a/staticmap.php b/staticmap.php new file mode 100644 index 0000000..4392ae3 --- /dev/null +++ b/staticmap.php @@ -0,0 +1,199 @@ + + * + * USAGE: + * + * staticmap.php?center=40.714728,-73.998672&zoom=14&size=512x512&maptype=mapnik&markers=40.702147,-74.015794,blues|40.711614,-74.012318,greeng|40.718217,-73.998284,redc + * + */ + +error_reporting(0); +ini_set('display_errors','off'); + +Class staticMapLite { + + protected $tileSize = 256; + protected $tileSrcUrl = array( 'mapnik' => 'http://tile.openstreetmap.org/{Z}/{X}/{Y}.png', + 'osmarenderer' => 'http://c.tah.openstreetmap.org/Tiles/tile/{Z}/{X}/{Y}.png', + 'cycle' => 'http://c.andy.sandbox.cloudmade.com/tiles/cycle/{Z}/{X}/{Y}.png' + ); + protected $tileDefaultSrc = 'mapnik'; + protected $markerBaseDir = 'images/markers'; + protected $osmLogo = 'images/osm_logo.png'; + + protected $useTileCache = true; + protected $tileCacheBaseDir = 'cache'; + + protected $zoom, $lat, $lon, $width, $height, $markers, $image, $maptype; + protected $centerX, $centerY, $offsetX, $offsetY; + + public function __construct(){ + $this->zoom = 0; + $this->lat = 0; + $this->lon = 0; + $this->width = 0; + $this->height = 0; + $this->markers = array(); + $this->maptype = $this->tileDefaultSrc; + } + + public function parseParams(){ + global $_GET; + + $this->zoom = $_GET['zoom']?intval($_GET['zoom']):0; + if($this->zoom>18)$this->zoom = 18; + + list($this->lat,$this->lon) = split(',',$_GET['center']); + + if($_GET['size']){ + list($this->width, $this->height) = split('x',$_GET['size']); + } + if($_GET['markers']){ + $this->markers = split('%7C|\|',$_GET['markers']); + } + if($_GET['maptype']){ + if(array_key_exists($_GET['maptype'],$this->tileSrcUrl)) $this->maptype = $_GET['maptype']; + } + } + + public function lonToTile($long, $zoom){ + return (($long + 180) / 360) * pow(2, $zoom); + } + + public function latToTile($lat, $zoom){ + return (1 - log(tan($lat * pi()/180) + 1 / cos($lat* pi()/180)) / pi()) /2 * pow(2, $zoom); + } + + public function initCoords(){ + $this->centerX = $this->lonToTile($this->lon, $this->zoom); + $this->centerY = $this->latToTile($this->lat, $this->zoom); + $this->offsetX = floor((floor($this->centerX)-$this->centerX)*$this->tileSize); + $this->offsetY = floor((floor($this->centerY)-$this->centerY)*$this->tileSize); + } + + public function createBaseMap(){ + $this->image = imagecreatetruecolor($this->width, $this->height); + $startX = floor($this->centerX-($this->width/$this->tileSize)/2); + $startY = floor($this->centerY-($this->height/$this->tileSize)/2); + $endX = ceil($this->centerX+($this->width/$this->tileSize)/2); + $endY = ceil($this->centerY+($this->height/$this->tileSize)/2); + $this->offsetX = -floor(($this->centerX-floor($this->centerX))*$this->tileSize); + $this->offsetY = -floor(($this->centerY-floor($this->centerY))*$this->tileSize); + $this->offsetX += floor($this->width/2); + $this->offsetY += floor($this->height/2); + $this->offsetX += floor($startX-floor($this->centerX))*$this->tileSize; + $this->offsetY += floor($startY-floor($this->centerY))*$this->tileSize; + + for($x=$startX; $x<=$endX; $x++){ + for($y=$startY; $y<=$endY; $y++){ + $url = str_replace(array('{Z}','{X}','{Y}'),array($this->zoom, $x, $y), $this->tileSrcUrl[$this->maptype]); + $tileImage = imagecreatefromstring($this->fetchTile($url)); + $destX = ($x-$startX)*$this->tileSize+$this->offsetX; + $destY = ($y-$startY)*$this->tileSize+$this->offsetY; + imagecopy($this->image, $tileImage, $destX, $destY, 0, 0, $this->tileSize, $this->tileSize); + } + } + } + + + public function placeMarkers(){ + foreach($this->markers as $marker){ + list($markerLat, $markerLon, $markerImage) = split(',',$marker); + $markerIndex++; + $markerFilename = $markerImage?(file_exists($this->markerBaseDir.'/'.$markerImage.".png")?$markerImage:'lightblue'.$markerIndex):'lightblue'.$markerIndex; + if(file_exists($this->markerBaseDir.'/'.$markerFilename.".png")){ + $markerImg = imagecreatefrompng($this->markerBaseDir.'/'.$markerFilename.".png"); + } else { + $markerImg = imagecreatefrompng($this->markerBaseDir.'/lightblue1.png'); + } + $destX = floor(($this->width/2)-$this->tileSize*($this->centerX-$this->lonToTile($markerLon, $this->zoom))); + $destY = floor(($this->height/2)-$this->tileSize*($this->centerY-$this->latToTile($markerLat, $this->zoom))); + $destY = $destY - imagesy($markerImg); + + imagecopy($this->image, $markerImg, $destX, $destY, 0, 0, imagesx($markerImg), imagesy($markerImg)); + + } +} + + + + public function tileUrlToFilename($url){ + return $this->tileCacheBaseDir."/".str_replace(array('http://'),'',$url); + } + + public function checkTileCache($url){ + $filename = $this->tileUrlToFilename($url); + if(file_exists($filename)){ + return file_get_contents($filename); + } + } + public function mkdir_recursive($pathname, $mode){ + is_dir(dirname($pathname)) || $this->mkdir_recursive(dirname($pathname), $mode); + return is_dir($pathname) || @mkdir($pathname, $mode); + } + public function writeTileToCache($url, $data){ + $filename = $this->tileUrlToFilename($url); + $this->mkdir_recursive(dirname($filename),0777); + file_put_contents($filename, $data); + } + + public function fetchTile($url){ + if($this->useTileCache && ($cached = $this->checkTileCache($url))) return $cached; + $ch = curl_init(); + curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); + curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/4.0"); + curl_setopt($ch, CURLOPT_URL, $url); + $tile = curl_exec($ch); + curl_close($ch); + if($this->useTileCache){ + $this->writeTileToCache($url,$tile); + } + return $tile; + + } + + public function copyrightNotice(){ + $logoImg = imagecreatefrompng($this->osmLogo); + imagecopy($this->image, $logoImg, imagesx($this->image)-imagesx($logoImg), imagesy($this->image)-imagesy($logoImg), 0, 0, imagesx($logoImg), imagesy($logoImg)); + + } + + public function showMap(){ + $this->parseParams(); + $this->initCoords(); + $this->createBaseMap(); + if(count($this->markers))$this->placeMarkers(); + if($this->osmLogo) $this->copyrightNotice(); + header('Content-Type: image/png'); + $expires = 60*60*24*14; + header("Pragma: public"); + header("Cache-Control: maxage=".$expires); + header('Expires: ' . gmdate('D, d M Y H:i:s', time()+$expires) . ' GMT'); + return imagepng($this->image); + + } + +} + +$map = new staticMapLite(); +print $map->showMap(); + +?> \ No newline at end of file