Ok, I solved this issue with the following lines:
OpenLayers.Util.onImageLoadError = function() {
this.src = "http://localhost/static/img/missingTile.png";;
};
Where missingTile.png is a completely transparent image of size 256x256.
The visualization is now perfect on every browser, but using firebug on
Firefox I see that every missing tile produces a 404 error anyway.
Can this lead to performance issues and is it possible to avoid these calls?
Hi list.
I produce tiles using mapnik (www.mapnik.org) and I use the following
map definition:
var map = new OpenLayers.Map({
div: "map",
allOverlays: true,
maxExtent: bounds,
projection: fromProj,
displayProjection: toProj,
allowSelection: true,
controls: [new OpenLayers.Control.PanZoomBar(), new
OpenLayers.Control.Navigation()],
});
var layer = new OpenLayers.Layer.OSM(
layer_dir,
"tiles/${z}/${x}/${y}.png",
{zoomLevels: maxZoom, zoomOffset: minZoom, resolutions: res}
);
map.addLayer(layer);
The problem is that I have a visualization issue in IE and Chrome: the
missing tiles are represented as pink squares.
Instead in Firefox the visualization is perfect because it simply
uses a white background when the tile is missing.
Is there a map or layer parameter to visualize as white the missing
tiles?
Thanks in advance,
Alessandro
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Alessandro Candini
MEEO S.r.l.
Via Saragat 9
I-44122 Ferrara, Italy
Tel: +39 0532 1861501
Fax: +39 0532 1861637
http://www.meeo.it
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![http://localhost/static/img/missingTile.png"](http://localhost/static/img/missingTile.png"){kind=link}