SOLVED Re: [Tilecache] Error generating tile at highest resolutions

[DFE]

Hi all,
it was resolved using right resolutions for the given bbox in the
tilecache.cfg, like:

resolution=156542.947,78271.4735
,39135.73675,19567.868375,9783.9341875,4891.96709375,2445.983546875,1222.9917734375,611.49588671875,305.747943359375,152.8739716796875,76.43698583984375,38.218492919921875,19.1092464599609375,9.55462322998046875,4.777311614990234375
bbox=-20037497.21, -20037497.21, 20037497.21, 20037497.21

Regards,
Domenico

2011/10/6 Ritesh Ambastha <ritesh.linux at gmail.com>:
> The problem is with your coordinates - maxExtent: -20037497.21,
> -20037497.21,20037497.21, 20037497.21
> For the higher zoom level, these coordinates are too far from the
> tile-corner (left-bottom). It works peacefully for the lower zoom levels.
> But, it will not work for the higher ones as it will have to tile numerous
> blank tiles.
> I would recommend you to check the bbox and specify more accurate
> coordinates for tiling.
> Regards,
> Ritesh Ambastha
>
>
>
> On Thu, Oct 6, 2011 at 5:56 PM, DFE <mimmopasticcio at gmail.com> wrote:
>>
>> Hello All,
>> I'm getting the following error when I'm requesting tile only at
>> highest resolutions, instead it works correctly for the lowest zoom
>> levels.
>>
>> An error occurred: Current x value 1493284.913512 is too far from tile
>> corner x 1493272.954920
>>  File "/var/www/tlc/TileCache/Service.py", line 256, in modPythonHandler
>>    host )
>>  File "/var/www/tlc/TileCache/Service.py", line 181, in dispatchRequest
>>    tile = WMS(self).parse(params, path_info, host)
>>  File "/var/www/tlc/TileCache/Services/WMS.py", line 19, in parse
>>    return self.getMap(param)
>>  File "/var/www/tlc/TileCache/Services/WMS.py", line 27, in getMap
>>    tile  = self.getLayer(name).getTile(bbox)
>>  File "/var/www/tlc/TileCache/Layer.py", line 312, in getTile
>>    coord = self.getCell(bbox)
>>  File "/var/www/tlc/TileCache/Layer.py", line 287, in getCell
>>    raise TileCacheException("Current x value %f is too far from tile
>> corner x %f" % (minx, tilex))
>>
>>
>>
>> I'm using OpenLayers 2.11:
>>
>>  map = new OpenLayers.Map('map', { maxExtent: new
>> OpenLayers.Bounds(-20037497.21, -20037497.21,20037497.21,
>> 20037497.21),
>>                 projection: new OpenLayers.Projection("EPSG:3857"),
>>
>>  resolutions:[156543.0339,78271.51695,39135.758475,4891.969809375,2445.9849046875,1222.99245234375,611.496226171875,305.7481130859375,152.87405654296876,76.43702827148438,38.21851413574219,19.109257067871095,9.554628533935547,4.777314266967774],
>>                units: "m"});
>> var tlc_land = new OpenLayers.Layer.WMS("TileCacheMerc land",
>>                 "http://"+window.location.host+"/tlc/tilecache.py",
>>                 {format: 'image/png', layers:'land_merc'}
>>                );
>>                map.addLayer(tlc_land);
>>
>> and I'm usign TileCache 2.11 under FastCGI module of httpd:
>>
>> [land_merc]
>> type=WMS
>> url=http://localhost/cgi-bin/mapserv?map=/var/www/maps/main.map
>> layers=land_merc
>> extent_type=loose
>> # spherical_mercator=true
>>
>> resolution=156543.0339,78271.51695,39135.758475,4891.969809375,2445.9849046875,1222.99245234375,611.496226171875,305.7481130859375,152.87405654296876,76.43702827148438,38.21851413574219,19.109257067871095,9.554628533935547,4.777314266967774
>> bbox=-20037497.21, -20037497.21,20037497.21, 20037497.21
>> srs=EPSG:3857
>> tms_type=google
>>
>> Of course the direct WMS calls to mapserver is working correctly.
>>
>> Do you have any suggestion?
>> Thanks in advance.
>>
>> domenico febbo.
>> _______________________________________________
>> Tilecache mailing list
>> Tilecache at lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/tilecache
>
>