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<p class="MsoNormal"><span style="color:#1F497D">Re-posting as I attached an image last time which made the message too large:</span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal">I am having real problems getting this configuration to work.<o:p></o:p></p>
<p class="MsoNormal">I am using Leaflet 0.4 to create a WMS layer ;<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">mapserver = new L.TileLayer.WMS('http://mapsrv.cch.kcl.ac.uk/tilecache-2.11/tilecache.cgi',{<o:p></o:p></p>
<p class="MsoNormal"> layers: 'postgres_worldmap',<o:p></o:p></p>
<p class="MsoNormal"> format: 'image/png',<o:p></o:p></p>
<p class="MsoNormal"> version: '1.1.0',<o:p></o:p></p>
<p class="MsoNormal"> }); <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">It is serving this layer in tilecache:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">[postgres_worldmap]<o:p></o:p></p>
<p class="MsoNormal">type=WMS<o:p></o:p></p>
<p class="MsoNormal">url=/sample_map_script.cgi<o:p></o:p></p>
<p class="MsoNormal">extension=png<o:p></o:p></p>
<p class="MsoNormal">size=256,256<o:p></o:p></p>
<p class="MsoNormal">srs=EPSG:3857<o:p></o:p></p>
<p class="MsoNormal">extent_type=loose<o:p></o:p></p>
<p class="MsoNormal">transparent=true<o:p></o:p></p>
<p class="MsoNormal">maxResolution=156543.0<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">… from this setup in a mapfile:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">MAP<o:p></o:p></p>
<p class="MsoNormal"> NAME "Test"<o:p></o:p></p>
<p class="MsoNormal"> MAXSIZE 14096<o:p></o:p></p>
<p class="MsoNormal"> IMAGETYPE AGG<o:p></o:p></p>
<p class="MsoNormal"> OUTPUTFORMAT<o:p></o:p></p>
<p class="MsoNormal"> NAME 'AGG'<o:p></o:p></p>
<p class="MsoNormal"> DRIVER AGG/PNG<o:p></o:p></p>
<p class="MsoNormal"> MIMETYPE "image/png"<o:p></o:p></p>
<p class="MsoNormal"> IMAGEMODE RGBA<o:p></o:p></p>
<p class="MsoNormal"> EXTENSION "png"<o:p></o:p></p>
<p class="MsoNormal"> END<o:p></o:p></p>
<p class="MsoNormal"> SIZE 256 256<o:p></o:p></p>
<p class="MsoNormal"> EXTENT -180 -90 180 90<o:p></o:p></p>
<p class="MsoNormal"> PROJECTION<o:p></o:p></p>
<p class="MsoNormal"> "init=epsg:3857"<o:p></o:p></p>
<p class="MsoNormal"> END<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> LAYER<o:p></o:p></p>
<p class="MsoNormal"> NAME "postgres_worldmap"<o:p></o:p></p>
<p class="MsoNormal"> METADATA<o:p></o:p></p>
<p class="MsoNormal"> "wms_title" "worldmap"<o:p></o:p></p>
<p class="MsoNormal"> "wms_srs" "EPSG:4326 EPSG:3857"<o:p></o:p></p>
<p class="MsoNormal"> END<o:p></o:p></p>
<p class="MsoNormal"> PROJECTION<o:p></o:p></p>
<p class="MsoNormal"> "init=epsg:4326"<o:p></o:p></p>
<p class="MsoNormal"> END<o:p></o:p></p>
<p class="MsoNormal"> TYPE POLYGON<o:p></o:p></p>
<p class="MsoNormal"> CONNECTIONTYPE POSTGIS<o:p></o:p></p>
<p class="MsoNormal"> EXTENT -180 -90 180 90<o:p></o:p></p>
<p class="MsoNormal"> CONNECTION "host=XXX.XXX.XXX.XXX port=5432 dbname=postgres user=postgres password=XXXXXX"<o:p></o:p></p>
<p class="MsoNormal"> DATA "the_geom from tbl_simple_world_border"<o:p></o:p></p>
<p class="MsoNormal"> CLASS<o:p></o:p></p>
<p class="MsoNormal"> STYLE<o:p></o:p></p>
<p class="MsoNormal"> OUTLINECOLOR 255 0 0<o:p></o:p></p>
<p class="MsoNormal"> ANTIALIAS TRUE<o:p></o:p></p>
<p class="MsoNormal"> END<o:p></o:p></p>
<p class="MsoNormal"> END<o:p></o:p></p>
<p class="MsoNormal"> END<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> WEB<o:p></o:p></p>
<p class="MsoNormal"> METADATA<o:p></o:p></p>
<p class="MsoNormal"> "wms_title" "WGS84 Server"<o:p></o:p></p>
<p class="MsoNormal"> "wms_srs" "EPSG:4326 EPSG:3857"<o:p></o:p></p>
<p class="MsoNormal"> "wms_onlineresource" "<a href="http://mapsrv.cch.kcl.ac.uk/sample_map_script.cgi">http://mapsrv.cch.kcl.ac.uk/sample_map_script.cgi</a>"<o:p></o:p></p>
<p class="MsoNormal"> "ows_enable_request" "*"<o:p></o:p></p>
<p class="MsoNormal"> END<o:p></o:p></p>
<p class="MsoNormal"> IMAGEPATH "/tmp/"<o:p></o:p></p>
<p class="MsoNormal"> END<o:p></o:p></p>
<p class="MsoNormal">END<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">This request:<o:p></o:p></p>
<p class="MsoNormal"><a href="http://mapsrv.cch.kcl.ac.uk/tilecache-2.11/tilecache.cgi?service=WMS&request=GetMap&version=1.1.0&layers=postgres_worldmap&styles=&format=image/png&transparent=false&height=256&width=256&srs=EPSG:3857&bbox=-27517.33018266345,6591317.82308732,-27211.582069522745,6591623.571200458">http://mapsrv.cch.kcl.ac.uk/tilecache-2.11/tilecache.cgi?service=WMS&request=GetMap&version=1.1.0&layers=postgres_worldmap&styles=&format=image/png&transparent=false&height=256&width=256&srs=EPSG:3857&bbox=-27517.33018266345,6591317.82308732,-27211.582069522745,6591623.571200458</a><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">is failing with…<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:black;mso-fareast-language:EN-GB">An error occurred: Current x value -27517.330183 is too far from tile corner x -27391.576172<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:black;mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:black;mso-fareast-language:EN-GB">I have trawled Google with no luck.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:black;mso-fareast-language:EN-GB">If I add spherical_mercator=true to the config, then I get an error saying the URL is invalid.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:black;mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:black;mso-fareast-language:EN-GB">I have dealt (</span><span style="font-size:10.0pt;font-family:"Courier New";color:#1F497D;mso-fareast-language:EN-GB">I think</span><span style="font-size:10.0pt;font-family:"Courier New";color:black;mso-fareast-language:EN-GB">)
with other issues </span><span style="font-size:10.0pt;font-family:"Courier New";color:#1F497D;mso-fareast-language:EN-GB">regarding</span><span style="font-size:10.0pt;font-family:"Courier New";color:black;mso-fareast-language:EN-GB"> resolutions being wrong
etc, but am stuck on this.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:black;mso-fareast-language:EN-GB">What I can’t understand is why the corner should matter – I thought the tile I needed would be generated and ‘positioned’
</span><span style="font-size:10.0pt;font-family:"Courier New";color:#1F497D;mso-fareast-language:EN-GB">appropriately
</span><span style="font-size:10.0pt;font-family:"Courier New";color:black;mso-fareast-language:EN-GB">with its corner outside of my map window if necessary</span><span style="font-size:10.0pt;font-family:"Courier New";color:#1F497D;mso-fareast-language:EN-GB">
as happens with other tms layers. Of course the tilecache is being used as a WMS in this instance.</span><span style="font-size:10.0pt;font-family:"Courier New";color:black;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-GB">I haven’t tried this with OpenLayers so maybe the Leaflet library is the issue?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:black;mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:black;mso-fareast-language:EN-GB">i.e. – the map bounds, although in the
</span><span style="font-size:10.0pt;font-family:"Courier New";color:#1F497D;mso-fareast-language:EN-GB">url
</span><span style="font-size:10.0pt;font-family:"Courier New";color:black;mso-fareast-language:EN-GB">request,
</span><span style="font-size:10.0pt;font-family:"Courier New";color:#1F497D;mso-fareast-language:EN-GB">would
</span><span style="font-size:10.0pt;font-family:"Courier New";color:black;mso-fareast-language:EN-GB">still return the tile required even though its ll corner is outside of the bounds</span><span style="font-size:10.0pt;font-family:"Courier New";color:#1F497D;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:black;mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal">I’m obviously misunderstanding something fundamental here, and any help would be gratefully received.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Neil<o:p></o:p></p>
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