[OpenLayers-Users] Problems setting up TileCache

[Nina Helle-Mildt]

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});
		

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