AW: [OpenLayers-Users] Get the Tile under mouse cursor?

[Arnd Wippermann]

Hi,

that' the way I do it:

function getSLDfromGrid(evt, lyr)
{
    var ctr = map.getLonLatFromPixel(evt.xy);

    var flag=false;

    for(var i=0;i<lyr.grid.length;i++)
    {
        for(var k=0;k<lyr.grid[i].length;k++)
        {
            bounds = lyr.grid[i][k].bounds;
            if(bounds.containsLonLat(ctr, false))
            {   flag=true;
                break;
            }
        }
        if(flag)
            break;
    }
    if(i>=lyr.grid.length) i=0
    if(k>=lyr.grid[i].length) k=0

    var params = OpenLayers.Util.getParameters(lyr.grid[i][k].url);
    params["SLD"] = lyr.grid[i][k].SLD;
    lyr.mergeNewParams({SLD : params["SLD"]});

    lyr.vendor.SLD = params["SLD"];
    themeApplied = true;
}


http://gis.ibbeck.de/ginfo/apps/OLExamples/OL210/WMS_Tiles_Access/WMS_Tiles_
Access.asp
 
Arnd


-----Ursprüngliche Nachricht-----
Von: openlayers-users-bounces at lists.osgeo.org
[mailto:openlayers-users-bounces at lists.osgeo.org] Im Auftrag von Doru
Gesendet: Dienstag, 25. Oktober 2011 16:00
An: users at openlayers.org
Betreff: [OpenLayers-Users] Get the Tile under mouse cursor?

Hi all,

I'm trying to implement kind of magnifying glass tool for an OL map with
javascript.
For this i have to know the ID of each " " tile element from the layer's
"<div>" element under the current mouse position. Any ideas out there? 

p.s.: seems to be something similar described here
http://lists.osgeo.org/pipermail/openlayers-users/2010-May/017652.html
but the attached URL is broken:
http://acuriousanimal.orggeo.net/?q=content/openlayers-how-compute-tile-name
-under-mouse


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