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<DIV>Hi Jan,</DIV>
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<DIV>I recall similar issues of getting stuck in Africa. Back then, there was a lot of different things I was trying so I can't pinpoint exactly what did it for me. Here are my OL map options:</DIV>
<DIV>options = {<BR> projection: new OpenLayers.Projection("EPSG:26917"),<BR> maxExtent: new OpenLayers.Bounds(640541.774843334, 4755587.40501464, 667085.402317306, 4779623.23729788),<BR> units: "m",<BR> tileSize: new OpenLayers.Size(256, 256),<BR> resolutions: [850, 425, 212.5, 106.25, 53.125, 26.5625, 13.28125, 6.640625, 3.3203125, 1.66015625, 0.830078125, 0.4150390625, 0.20751953125, 0.103759765625, 0.0518798828125],</DIV>
<DIV>....... controls, themes, etc...</DIV>
<DIV>};</DIV>
<DIV> </DIV>
<DIV>Then, for TileCache:</DIV>
<DIV><BR>[wmsLayer]<BR>type=WMS<BR>url=http://wmsUrl<BR>layers=layerName</DIV>
<DIV>extension=png<BR>mime_type=image/png<BR>resolutions=850,425,212.5,106.25,53.125,26.5625,13.28125,6.640625,3.3203125,1.66015625,0.830078125,0.4150390625,0.20751953125,0.103759765625,0.0518798828125<BR>bbox=640541.774843334, 4755587.40501464, 667085.402317306, 4779623.23729788<BR>metaTile=true<BR>metaSize=7,7<BR>srs=EPSG:26917</DIV>
<DIV> </DIV>
<DIV>Perhaps try putting your own values in place of resolutions,bbox, maxextent and projection/srs to see what happens.</DIV>
<DIV> </DIV>
<DIV>Shawn<BR>>>> On 8/27/2009 at 2:37 AM, "Jan van der Ven" <j.vanderven@magion.nl> wrote:<BR></DIV>
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<DIV dir=ltr align=left><SPAN class=781053406-27082009><FONT face="Segoe UI">Hi Shawn,</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=781053406-27082009></SPAN> </DIV>
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<DIV dir=ltr align=left><SPAN class=781053406-27082009><FONT face="Segoe UI">Thanks for the quick reply. I followed your suggestion, but the error is the same.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=781053406-27082009>Christopher Schmidt told me in the #openlayers that I should not have maxExtent at all, but then I get stuck in Africa, when I try to zoom to Europe. So that is why I added the whole world as a maxExtent.</SPAN></DIV>
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<DIV dir=ltr align=left><SPAN class=781053406-27082009><FONT face="Segoe UI">Do you have another suggestion?</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=781053406-27082009></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=781053406-27082009><FONT face="Segoe UI">Kind regards,</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=781053406-27082009></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=781053406-27082009><FONT face="Segoe UI">Jan</FONT></SPAN></DIV><FONT face="Segoe UI"></FONT><BR>
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<FONT face=Tahoma><B>From:</B> Shawn Oatley [mailto:shawn@niagarafalls.ca] <BR><B>Sent:</B> Wednesday, August 26, 2009 15:15<BR><B>To:</B> j.vanderven@magion.nl; tilecache@openlayers.org<BR><B>Subject:</B> Re: [Tilecache] too far from tile corner<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV>I had a similar problem in the past and if I recall, it was a matter of specifying the resolution in both the OL constructor and the TC config. Plus, make sure the maxExtent in your OL constructor matches the TC bbox parameter. </DIV>
<DIV> </DIV>
<DIV>Shawn<BR>>>> On 8/26/2009 at 8:21 AM, "Jan van der Ven" <j.vanderven@magion.nl> wrote:<BR></DIV>
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<DIV style="FONT-FAMILY: -moz-fixed; FONT-SIZE: 13px" lang=x-western class=moz-text-flowed>Dear list, <BR><BR><BR>I have a problem with tilecache. My tiles are not rendered because they are not aligned with the grid. <BR><BR>Here is my sample map: <BR><BR><html xmlns=<A class=moz-txt-link-rfc2396E href="http://www.w3.org/1999/xhtml">"http://www.w3.org/1999/xhtml"</A>> <BR> <head> <BR> <title>TileCache</title> <BR> <script src="js/OpenLayers.js"></script> <BR> <!--script type="text/javascript" src="lib/proj4js-compressed.js"></script--> <BR> <script type="text/javascript" <BR> src=<A class=moz-txt-link-rfc2396E href="http://maps.google.com/maps?file=api&v=2&key=">"http://maps.google.com/maps?file=api&amp;v=2&amp;key="</A>></script> <BR><BR><BR> </head> <BR> <body> <BR> <div style="width:100%; height:100%" id="map"></div> <BR> <script defer="defer" type="text/javascript"> <BR> biskurl = <A class=moz-txt-link-rfc2396E href="http:///">"http://"</A> + window.location.host + "/"; <BR> map = new OpenLayers.Map('map',{ <BR> projection:'EPSG:900913', <BR> maxResolution:156543.0339, <BR> units:'m', <BR> numZoomLevels:20 <BR> }); <BR> layerSwitchControl = new OpenLayers.Control.LayerSwitcher(); <BR> map.addControl(layerSwitchControl); <BR> var layer = new OpenLayers.Layer.Google( "Satelliet" , {'sphericalMercator':true, type: G_SATELLITE_MAP}); <BR> layer.addOptions({ <BR> isBaseLayer: true, <BR> buffer: 1, <BR> // without this line I never get out of Africa when zooming in <BR> maxExtent: new OpenLayers.Bounds(-20037508.34,-20037508.34,20037508.34,20037508.34) <BR> }); <BR> map.addLayer(layer); <BR> // this seems to do nothing <BR> map.restrictedExtent = new OpenLayers.Bounds(513236.42635, 6779582.22281, 539836.512, 6805952.99756); <BR> // add a tilecache layer <BR> tilelayer = new OpenLayers.Layer.WMS( <BR> 'New-tilecache', <BR> '<A class=moz-txt-link-freetext href="http://example.com/cgi-bin/tilecache-2.10/tilecache.cgi">http://example.com/cgi-bin/tilecache-2.10/tilecache.cgi</A>?', <BR> { <BR> layers:'bisk', <BR> format:'image/png' <BR> }, <BR> { <BR> isBaseLayer:false, <BR> sphericalMercator:true, <BR> displayOutsideMaxExtent:true // firebug says maxExtent = -180,-90, 180, 90 <BR> }); <BR> map.addLayer(tilelayer); <BR> map.setCenter(513236, 6779582); <BR> map.zoomTo(12); <BR> </script> <BR> </body> <BR></html> <BR><BR>And here is the relevant part of tilecache.cfg: <BR><BR>[bisk] <BR>type=MapServerLayer <BR>layers=Nieuw-ms <BR>mapfile=/var/www/bisk/html/maps/a.map <BR>srs=EPSG:900913 <BR>extension=png <BR>spherical_mercator=true <BR><BR>And I tried it without any resolutions, with this one: <BR>resolutions=76.43702827148438,38.21851413574219,19.109257067871095,9.554628533935547,4.777314266967774,2.388657133483887,1.1943285667419434,0.5971642833709717,0.29858214168548586,0.14929107084274293 <BR><BR>And instead of that with: <BR>maxResolution=156543.0339 <BR><BR>But every tile request, such as: <BR><A class=moz-txt-link-freetext href="http://example.com/cgi-bin/tilecache-2.10/tilecache.cgi?LAYERS=bisk&FORMAT=image%2Fpng&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&STYLES=&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&SRS=EPSG%3A900913&BBOX=528152.7394125,6780180.1557938,537936.67903125,6789964.0954125&WIDTH=256&HEIGHT=256">http://example.com/cgi-bin/tilecache-2.10/tilecache.cgi?LAYERS=bisk&FORMAT=image%2Fpng&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&STYLES=&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&SRS=EPSG%3A900913&BBOX=528152.7394125,6780180.1557938,537936.67903125,6789964.0954125&WIDTH=256&HEIGHT=256</A> <BR><BR>returns the error: <BR>An error occurred: Current x value 528152.739413 is too far from tile corner x 528332.738613 <BR><BR><BR>Can anyone point me in the right direction? <BR><BR>Kind regards, <BR><BR><BR>Jan <BR><BR><BR></DIV></FONT></DIV>
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<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: Verdana; FONT-SIZE: 10pt">Jan H. van der Ven<o:p></o:p></SPAN></P>
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