Last active
September 25, 2022 20:17
-
-
Save anthonyeden/69c6eee056d61fcaaad9159058952309 to your computer and use it in GitHub Desktop.
OpenStreetMap & OpenLayers: Creating A Map With Markers
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="utf-8"> | |
| <title>OpenStreetMap & OpenLayers - Marker Example</title> | |
| <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> | |
| <link rel="stylesheet" href="https://openlayers.org/en/v4.6.5/css/ol.css" type="text/css"> | |
| <script src="https://openlayers.org/en/v4.6.5/build/ol.js" type="text/javascript"></script> | |
| <script> | |
| /* OSM & OL example code provided by https://mediarealm.com.au/ */ | |
| var map; | |
| var mapLat = -33.829357; | |
| var mapLng = 150.961761; | |
| var mapDefaultZoom = 10; | |
| function initialize_map() { | |
| map = new ol.Map({ | |
| target: "map", | |
| layers: [ | |
| new ol.layer.Tile({ | |
| source: new ol.source.OSM({ | |
| url: "https://a.tile.openstreetmap.org/{z}/{x}/{y}.png" | |
| }) | |
| }) | |
| ], | |
| view: new ol.View({ | |
| center: ol.proj.fromLonLat([mapLng, mapLat]), | |
| zoom: mapDefaultZoom | |
| }) | |
| }); | |
| } | |
| function add_map_point(lat, lng) { | |
| var vectorLayer = new ol.layer.Vector({ | |
| source:new ol.source.Vector({ | |
| features: [new ol.Feature({ | |
| geometry: new ol.geom.Point(ol.proj.transform([parseFloat(lng), parseFloat(lat)], 'EPSG:4326', 'EPSG:3857')), | |
| })] | |
| }), | |
| style: new ol.style.Style({ | |
| image: new ol.style.Icon({ | |
| anchor: [0.5, 0.5], | |
| anchorXUnits: "fraction", | |
| anchorYUnits: "fraction", | |
| src: "https://upload.wikimedia.org/wikipedia/commons/e/ec/RedDot.svg" | |
| }) | |
| }) | |
| }); | |
| map.addLayer(vectorLayer); | |
| } | |
| </script> | |
| </head> | |
| <body onload="initialize_map(); add_map_point(-33.8688, 151.2093);"> | |
| <div id="map" style="width: 100vw; height: 100vh;"></div> | |
| </body> | |
| </html> |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <?php | |
| // Example script to proxy OSM Tiles | |
| // Written by Anthony Eden (https://mediarealm.com.au) | |
| // This is a simplistic example without any caching | |
| // For an example with caching, see https://wiki.openstreetmap.org/wiki/ProxySimplePHP | |
| $x = $_GET['x']; | |
| $y = $_GET['y']; | |
| $z = $_GET['z']; | |
| if(!is_numeric($x) || !is_numeric($y) || !is_numeric($z)) { | |
| http_response_code(404); | |
| die("404 Not Found"); | |
| } | |
| $ch = curl_init('https://maps.wikimedia.org/osm-intl/'.$z.'/'.$x.'/'.$y.'.png'); | |
| curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); | |
| curl_setopt($ch, CURLOPT_HEADER, 0); | |
| $image = curl_exec($ch); | |
| if(curl_getinfo($ch, CURLINFO_RESPONSE_CODE) == "404") { | |
| http_response_code(404); | |
| curl_close($ch); | |
| die("404 Not Found"); | |
| } | |
| header ('Content-Type: image/png'); | |
| header("Access-Control-Allow-Origin: *"); | |
| echo $image; | |
| curl_close($ch); | |
| ?> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment