How do I get the index of a clicked point from a tile in WMTS layer? I also want the tile row and column number corresponding to the clicked location. So I tried to set the extent of my WMTS layer to the clicked point. So my code was something like this dojo.declare("ogc.WMTSLayer", esri.layers.TiledMapServiceLayer, { constructor: function() { this.spatialReference = new esri.SpatialReference({ wkid: 3857 }); this.initialExtent = new esri.geometry.Extent(point.x, point.y,- point.x,- point.y, this.spatialReference); this.fullExtent = new esri.geometry.Extent(point.x, point.y, - point.x, -point.y, this.spatialReference); this.tileInfo = new esri.layers.TileInfo({ "dpi": "90.71428571427429", "format": "image/png", "compressionQuality": 0, "spatialReference": { "wkid": "3857" }, "rows": 256, "cols": 256, "origin": { "x": -20037508.342789, "y": 20037508.342789 }, "lods": [{ ............. ............. } ] }); this.loaded = true; this.onLoad(this); }, getTileUrl: function(level, row, col) { return "http://wmts.scalgo.com/public/wmts" + "?SERVICE=WMTS&VERSION=1.0.0&REQUEST=GetTile" + "&LAYER=denmark%3Adhm%3Apublic%3Asealevels" + "&STYLE=_null" + "&FORMAT=image/png" + "&TILEMATRIXSET=3857" + "&TILEMATRIX=" + level + "&TILEROW=" + row + "&TILECOL=" + col + "&Threshold = 200"; } }); In this case I am able to get the row and column of the tile corresponding to my clicked point. But the extent of my rendered tile has my clicked point coordinates as I had used them to create my WMTS layer. So I am unable to use the WMTS tile extent co-ordinates to find my pixel coordinates mathematically. I would appreciate any suggestions as to how to work on this. Should I use the scale and resolution of the loaded tile in any way?
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