replaces deprecated split(), adds .gitignore
This commit is contained in:
Gerhard Koch
parent
0331b801af
commit
f5ee38f2e3
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@ -0,0 +1 @@
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.idea/
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@ -1,7 +1,7 @@
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<?php
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/**
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* staticMapLite 0.03
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* staticMapLite 0.3.1
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*
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* Copyright 2009 Gerhard Koch
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*
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@ -28,7 +28,8 @@
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error_reporting(0);
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ini_set('display_errors', 'off');
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Class staticMapLite {
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Class staticMapLite
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{
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protected $maxWidth = 1024;
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protected $maxHeight = 1024;
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@ -36,19 +37,15 @@ Class staticMapLite {
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protected $tileSize = 256;
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protected $tileSrcUrl = array('mapnik' => 'http://tile.openstreetmap.org/{Z}/{X}/{Y}.png',
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'osmarenderer' => 'http://otile1.mqcdn.com/tiles/1.0.0/osm/{Z}/{X}/{Y}.png',
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'cycle' => 'http://c.andy.sandbox.cloudmade.com/tiles/cycle/{Z}/{X}/{Y}.png',
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'cycle' => 'http://a.tile.opencyclemap.org/cycle/{Z}/{X}/{Y}.png',
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'piste' => 'http://tiles.openpistemap.org/nocontours/{Z}/{X}/{Y}.png',
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'piste' => 'http://openpistemap.org/tiles/contours/{Z}/{X}/{Y}.png',
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'hikebike' => 'http://toolserver.org/tiles/hikebike/{Z}/{X}/{Y}.png'
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);
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protected $tileDefaultSrc = 'mapnik';
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protected $markerBaseDir = 'images/markers';
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protected $osmLogo = 'images/osm_logo.png';
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protected $markerPrototypes = array(// found at http://www.mapito.net/map-marker-icons.html
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protected $markerPrototypes = array(
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// found at http://www.mapito.net/map-marker-icons.html
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'lighblue' => array('regex' => '/^lightblue([0-9]+)$/',
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'extension' => '.png',
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'shadow' => false,
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@ -73,12 +70,11 @@ Class staticMapLite {
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);
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protected $useTileCache = true;
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protected $tileCacheBaseDir = 'cache/tiles';
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protected $tileCacheBaseDir = '../cache/tiles';
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protected $useMapCache = true;
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protected $mapCacheBaseDir = 'cache/maps';
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protected $mapCacheBaseDir = '../cache/maps';
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protected $mapCacheID = '';
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protected $mapCacheFile = '';
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protected $mapCacheExtension = 'png';
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@ -86,7 +82,8 @@ Class staticMapLite {
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protected $zoom, $lat, $lon, $width, $height, $markers, $image, $maptype;
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protected $centerX, $centerY, $offsetX, $offsetY;
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public function __construct(){
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public function __construct()
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{
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$this->zoom = 0;
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$this->lat = 0;
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$this->lon = 0;
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@ -96,7 +93,8 @@ Class staticMapLite {
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$this->maptype = $this->tileDefaultSrc;
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}
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public function parseParams(){
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public function parseParams()
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{
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global $_GET;
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// get zoom from GET paramter
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@ -104,22 +102,22 @@ Class staticMapLite {
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if ($this->zoom > 18) $this->zoom = 18;
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// get lat and lon from GET paramter
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list($this->lat,$this->lon) = split(',',$_GET['center']);
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list($this->lat, $this->lon) = explode(',', $_GET['center']);
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$this->lat = floatval($this->lat);
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$this->lon = floatval($this->lon);
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// get zoom from GET paramter
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if ($_GET['size']) {
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list($this->width, $this->height) = split('x',$_GET['size']);
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list($this->width, $this->height) = explode('x', $_GET['size']);
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$this->width = intval($this->width);
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if ($this->width > $this->maxWidth) $this->width = $this->maxWidth;
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$this->height = intval($this->height);
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if ($this->height > $this->maxHeight) $this->height = $this->maxHeight;
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}
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if($_GET['markers']){
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$markers = split('%7C|\|',$_GET['markers']);
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if (!empty($_GET['markers'])) {
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$markers = explode('|', $_GET['markers']);
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foreach ($markers as $marker) {
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list($markerLat, $markerLon, $markerType) = split(',',$marker);
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list($markerLat, $markerLon, $markerType) = explode(',', $marker);
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$markerLat = floatval($markerLat);
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$markerLon = floatval($markerLon);
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$markerType = basename($markerType);
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@ -132,22 +130,26 @@ Class staticMapLite {
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}
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}
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public function lonToTile($long, $zoom){
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public function lonToTile($long, $zoom)
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{
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return (($long + 180) / 360) * pow(2, $zoom);
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}
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public function latToTile($lat, $zoom){
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public function latToTile($lat, $zoom)
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{
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return (1 - log(tan($lat * pi() / 180) + 1 / cos($lat * pi() / 180)) / pi()) / 2 * pow(2, $zoom);
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}
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public function initCoords(){
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public function initCoords()
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{
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$this->centerX = $this->lonToTile($this->lon, $this->zoom);
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$this->centerY = $this->latToTile($this->lat, $this->zoom);
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$this->offsetX = floor((floor($this->centerX) - $this->centerX) * $this->tileSize);
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$this->offsetY = floor((floor($this->centerY) - $this->centerY) * $this->tileSize);
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}
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public function createBaseMap(){
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public function createBaseMap()
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{
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$this->image = imagecreatetruecolor($this->width, $this->height);
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$startX = floor($this->centerX - ($this->width / $this->tileSize) / 2);
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$startY = floor($this->centerY - ($this->height / $this->tileSize) / 2);
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@ -179,7 +181,8 @@ Class staticMapLite {
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}
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public function placeMarkers(){
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public function placeMarkers()
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{
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// loop thru marker array
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foreach ($this->markers as $marker) {
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// set some local variables
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@ -196,13 +199,14 @@ Class staticMapLite {
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if (preg_match($markerPrototype['regex'], $markerType, $matches)) {
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$markerFilename = $matches[0] . $markerPrototype['extension'];
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if ($markerPrototype['offsetImage']) {
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list($markerImageOffsetX, $markerImageOffsetY) = split(",",$markerPrototype['offsetImage']);
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list($markerImageOffsetX, $markerImageOffsetY) = explode(",", $markerPrototype['offsetImage']);
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}
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$markerShadow = $markerPrototype['shadow'];
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if ($markerShadow) {
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list($markerShadowOffsetX, $markerShadowOffsetY) = split(",",$markerPrototype['offsetShadow']);
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list($markerShadowOffsetX, $markerShadowOffsetY) = explode(",", $markerPrototype['offsetShadow']);
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}
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}
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}
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}
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@ -211,7 +215,8 @@ Class staticMapLite {
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$markerIndex++;
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$markerFilename = 'lightblue' . $markerIndex . '.png';
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$markerImageOffsetX = 0;
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$markerImageOffsetY = -19; }
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$markerImageOffsetY = -19;
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}
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// create img resource
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if (file_exists($this->markerBaseDir . '/' . $markerFilename)) {
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@ -243,29 +248,33 @@ Class staticMapLite {
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}
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public function tileUrlToFilename($url){
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public function tileUrlToFilename($url)
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{
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return $this->tileCacheBaseDir . "/" . str_replace(array('http://'), '', $url);
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}
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public function checkTileCache($url){
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public function checkTileCache($url)
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{
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$filename = $this->tileUrlToFilename($url);
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if (file_exists($filename)) {
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return file_get_contents($filename);
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}
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}
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public function checkMapCache(){
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public function checkMapCache()
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{
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$this->mapCacheID = md5($this->serializeParams());
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$filename = $this->mapCacheIDToFilename();
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if (file_exists($filename)) return true;
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}
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public function serializeParams(){
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public function serializeParams()
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{
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return join("&", array($this->zoom, $this->lat, $this->lon, $this->width, $this->height, serialize($this->markers), $this->maptype));
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}
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public function mapCacheIDToFilename(){
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public function mapCacheIDToFilename()
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{
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if (!$this->mapCacheFile) {
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$this->mapCacheFile = $this->mapCacheBaseDir . "/" . $this->maptype . "/" . $this->zoom . "/cache_" . substr($this->mapCacheID, 0, 2) . "/" . substr($this->mapCacheID, 2, 2) . "/" . substr($this->mapCacheID, 4);
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}
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@ -273,18 +282,21 @@ Class staticMapLite {
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}
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public function mkdir_recursive($pathname, $mode){
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public function mkdir_recursive($pathname, $mode)
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{
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is_dir(dirname($pathname)) || $this->mkdir_recursive(dirname($pathname), $mode);
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return is_dir($pathname) || @mkdir($pathname, $mode);
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}
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public function writeTileToCache($url, $data){
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public function writeTileToCache($url, $data)
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{
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$filename = $this->tileUrlToFilename($url);
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$this->mkdir_recursive(dirname($filename), 0777);
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file_put_contents($filename, $data);
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}
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public function fetchTile($url){
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public function fetchTile($url)
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{
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if ($this->useTileCache && ($cached = $this->checkTileCache($url))) return $cached;
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$ch = curl_init();
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
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@ -299,13 +311,15 @@ Class staticMapLite {
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}
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public function copyrightNotice(){
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public function copyrightNotice()
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{
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$logoImg = imagecreatefrompng($this->osmLogo);
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imagecopy($this->image, $logoImg, imagesx($this->image) - imagesx($logoImg), imagesy($this->image) - imagesy($logoImg), 0, 0, imagesx($logoImg), imagesy($logoImg));
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}
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public function sendHeader(){
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public function sendHeader()
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{
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header('Content-Type: image/png');
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$expires = 60 * 60 * 24 * 14;
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header("Pragma: public");
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@ -313,14 +327,16 @@ Class staticMapLite {
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header('Expires: ' . gmdate('D, d M Y H:i:s', time() + $expires) . ' GMT');
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}
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public function makeMap(){
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public function makeMap()
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{
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$this->initCoords();
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$this->createBaseMap();
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if (count($this->markers)) $this->placeMarkers();
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if ($this->osmLogo) $this->copyrightNotice();
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}
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public function showMap(){
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public function showMap()
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{
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$this->parseParams();
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if ($this->useMapCache) {
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// use map cache, so check cache for map
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@ -354,5 +370,3 @@ Class staticMapLite {
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$map = new staticMapLite();
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print $map->showMap();
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?>
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