[OpenLayers-Users] Problems setting up TileCache

[Christian López Espínola]

Hi,

On Tue, Jul 29, 2008 at 12:01 PM, Nina Helle-Mildt
<helle at sdac.hannover.bgr.de> wrote:
> Hi to Everyone!
>
> I have setup an OpenLayers application that I am trying to get to work
> with TileCache.  The layer is a MapServer served WMS layer (the base
> layer comes from Google).
>
> Using the following URL I can see a tile:
> http://www.seismologie.bgr.de:8080/cgi-bin/tilecache-2.04/tilecache.cgi/1.0.0/basic/0/0/0.png
>
> But in my OpenLayers application I'm getting the following error message:
>
> An error occurred: can't find resolution index for 9936.813675.
> Available resolutions are: [0.703125, 0.3515625, 0.17578125,
> 0.087890625, 0.0439453125, 0.02197265625, 0.010986328125,
> 0.0054931640625, 0.00274658203125, 0.001373291015625,
> 0.0006866455078125, 0.00034332275390625, 0.000171661376953125,
> 8.58306884765625e-05, 4.291534423828125e-05, 2.1457672119140625e-05]
>
>
> Here are the map and layer definitions from the html file:
>
> var options = {
> projection: new OpenLayers.Projection("EPSG:900913"),
> units: "m",
> maxResolution: 156543.0339,
> maxExtent: new OpenLayers.Bounds(-20037508.34,                                  -20037508.34,
> 20037508.34, 20037508.34)
> };
> map = new OpenLayers.Map($("map"), options,{numZoomLevels:16});
>
> var seis = new OpenLayers.Layer.WMS("Erdbeben weltweit ",
> http://www.seismologie.bgr.de:8080/cgi-bin/tilecache-2.04/tilecache.cgi?",
> //{transparent: 'true', layers: ['q_year','q_month']},
> {transparent: 'true', layers: 'basic'},
> {'isBaseLayer': false, 'gutter': 17});

I think that you have to specify the resolutions in your client code.

See http://trac.openlayers.org/wiki/SettingZoomLevels

HTH

>
> Here are the entries in the tilecache.cfg:
>
> # Configuration for MC TileCache
>
> [cache]
> type=DiskCache
> base=/home/b311www/wms/tilecache_tmp
>
> [basic]
> type=WMSLayer
> mapfile=/home/b311www/mapserv_bin/seis_ger_wms3.map
> url=http://www.seismologie.bgr.de:8080/cgi-bin/mapserv?map=seis_ger_wms3.map
>
> layers=q_year[,q_month]
> #layers=q_year
> #extension={png,jpeg,gif}
> extension=png
> size=256,256
> bbox=-180.0,-90.0,180.0,90.0
> #srs=EPSG:4326
> srs=EPSG:900913
> levels=16
> resolutions=0.703125, 0.3515625, 0.17578125, 0.087890625,
> 0.0439453125,   0.02197265625, 0.010986328125, 0.0054931640625,
> 0.00274658203125, 0.001373291015625, 0.0006866455078125,
> 0.00034332275390625, 0.000171661376953125, 8.58306884765625e-05,
> 4.291534423828125e-05, 2.1457672119140625e-05,
> 1.0728836059570312e-05, 5.3644180297851562e-06,
> 2.6822090148925781e-06, 1.3411045074462891e-06
> metaTile=true
> metaSize=5,5
> metaBuffer=17
> mime_type=image/png
> extent_type=loose
> tms_type=google
>
>
> Any help would be much appreciated.
> Regards,
> Nina
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>



-- 
Cheers,

Christian López Espínola <penyaskito>