[Tilecache] tilecache seed with bbox param creates exorbitant number of tiles ?

[karsten]

Hi All,
 
I have been using tilecache 2.10 on an ubuntu server in cgi mode. Then
working on creating tiles I ran seeding processes for the same layer in two
projections  (EPSG:900913 and EPSG:31468) using the commands including the
bounding boxes below (I made sure the boundring boxes in the two projections
match exactly by using gdaltransform to create the second one form the first
one). The goal is to create 12 zoom levels fro OpenLayers (tilecache levels
0 -11)
 
the  call for tiles in EPSG:900913 
/usr/sbin/tilecache_seed -b
'1025548.802262,6027618.553381,1540090.415317,6519963.998869'
boundaries_900913 
creates 728 tiles at zoom level 12
 
the call for tiles in EPSG:31468
 /usr/sbin/tilecache_seed -b
'4290192.98406065,5268550.86948127,4630494.22433962,5589135.81374885'
boundaries_31468
attempts to create 3,950,592 tiles at zoom level 12, way too many it appears
to me , so I always stopped it as it would take forever and does not seem
right.
 
After testing this all day long yesterday I could not come up with any
changes that would fix the configuration for boundaries_31468. 
 
Any idea what might be wrong ?
It apperas to me that tilecache is simply ignoring the -b boundaries
parameter for the non-google projection EPSG:31468.
If so how can i fix that ?

See the configurations from tilecache.cfg below 
 
Cheers
Karsten
 
-----------------------------------
Configurations
[boundaries_900913]
type=WMS
url=http://localhost/cgi-bin/mapserv?mapthemap.map&
layers=boundaries_900913
metaTile=true
metaSize=1,1
metaBuffer=10
spherical_mercator=true
bbox=1025548.802262,6027618.553381,1540090.415317,6519963.998869
extent_type=loose
srs=EPSG:900913
extension=png

[boundaries_31468]
type=WMS
url=http://localhost/cgi-bin/mapserv?mapthemap.map&
layers=boundaries_31468
metaTile=true
metaSize=1,1
metaBuffer=10
bbox=4268292.1572492, 5251787.8034355, 4638833.195067, 5730276.9668371
resolutions=1234.7215554725824,552.0960789555313,246.86544026633442,110.3839
4931763271,49.35731892569554,22.069738821563195,9.868310966916033,4.41253800
6322342,1.973031831132488,0.8822257397181134,0.39448033404226845,0.176388793
6389402
extent_type=loose
srs=EPSG:31468
extension=png

 
 
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