Oh, that code will still leave you with negative coordinates. var numTiles = 1 << zoom; var wrappedX = coord.x % numTiles; wrappedX = wrappedX >= 0 ? wrappedX : wrappedX + numTiles;
On Tue, May 31, 2011 at 10:34 PM, Chris Broadfoot <[email protected]> wrote: > You'll want to wrap the x coordinate. Assuming you're using the default > projection, you can calculate the number of tiles horizontally across the > earth at a particular zoom level with: > 1 << zoom > or > Math.pow(2, zoom) > > Then use the mod operator. Something like: > { > getTileUrl: function(coord, zoom) { > var wrappedX = coord.x % (1 << zoom); > return "/tiles/" + zoom + "/" + wrappedX + "/" + coord.y; > }, > tileSize: ... > ... > } > > BTW - you may want to take a look at the ImageMapType. Seems like it does > pretty much what you're doing right now. > > The above code is untested, but should work! > > Chris > > -- > http://twitter.com/broady > -- http://twitter.com/broady -- You received this message because you are subscribed to the Google Groups "Google Maps JavaScript API v3" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-maps-js-api-v3?hl=en.
