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Diffstat (limited to 'misc/openlayers/examples/osm-grayscale.html')
-rw-r--r-- | misc/openlayers/examples/osm-grayscale.html | 77 |
1 files changed, 0 insertions, 77 deletions
diff --git a/misc/openlayers/examples/osm-grayscale.html b/misc/openlayers/examples/osm-grayscale.html deleted file mode 100644 index 0ff3729..0000000 --- a/misc/openlayers/examples/osm-grayscale.html +++ /dev/null @@ -1,77 +0,0 @@ -<!DOCTYPE html> -<html> - <head> - <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> - <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0"> - <meta name="apple-mobile-web-app-capable" content="yes"> - <title>OpenLayers Grayscale OSM Example</title> - <link rel="stylesheet" href="../theme/default/style.css" type="text/css"> - <link rel="stylesheet" href="style.css" type="text/css"> - <script src="../lib/OpenLayers.js"></script> - <script type="text/javascript"> - var map, layer; - - function init() { - if (!OpenLayers.CANVAS_SUPPORTED) { - var unsupported = OpenLayers.Util.getElement('unsupported'); - unsupported.innerHTML = 'Your browser does not support canvas, nothing to see here !'; - } - - layer = new OpenLayers.Layer.OSM('Simple OSM Map', null, { - eventListeners: { - tileloaded: function(evt) { - var ctx = evt.tile.getCanvasContext(); - if (ctx) { - var imgd = ctx.getImageData(0, 0, evt.tile.size.w, evt.tile.size.h); - var pix = imgd.data; - for (var i = 0, n = pix.length; i < n; i += 4) { - pix[i] = pix[i + 1] = pix[i + 2] = (3 * pix[i] + 4 * pix[i + 1] + pix[i + 2]) / 8; - } - ctx.putImageData(imgd, 0, 0); - evt.tile.imgDiv.removeAttribute("crossorigin"); - evt.tile.imgDiv.src = ctx.canvas.toDataURL(); - } - } - } - }); - - // If you get a security error because the tile are not - // from the same domain as this page, a simple Apache - // proxy can be created to workaround this issue: - // - // <Proxy *> - // Order deny,allow - // Allow from localhost - // </Proxy> - // ProxyPass /osm http://tile.openstreetmap.org/ - // - // Then, in the layer definition above, replace null with '/osm/${z}/${x}/${y}.png' - - map = new OpenLayers.Map('map', { - layers: [layer], - zoom: 3, - center: [-1081125, 6212801] - }); - } - </script> - </head> - <body onload="init()"> - <h1 id="title">Grayscale OSM Example</h1> - - <div id="tags"> - openstreetmap canvas grayscale light - </div> - - <div id="shortdesc">Show an OSM Map in grayscale</div> - - <div id="map" class="smallmap"></div> - - <div id="docs"> - <p>This example shows an OSM layer where the tiles were - converted to grayscale - with <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html">canvas</a>.</p> - <p style="color:red;" id="unsupported"></p> - </div> - - </body> -</html> |