[Tilecache] tilecache_seed error, wrong bbox?

ChiefDan ChiefDan at gmail.com
Wed Jul 15 11:05:04 EDT 2009


I may be experiencing a similar issue, although I am not getting a crash, I
am getting an incorrect bounding box. I've got a tilecache layer:
[SCGAHFRADAR]
type=WMSLayer
url=http://129.252.37.86/cgi-bin/mapserv?PROJECTION=EPSG:4326&MAP=/home/rcoos/mapserver/hfradar_legend.map
layers=us_filled,counties,hfradar,hfradar_lgnd
levels=1
size=512,512
bbox=-82,29,-75,36
srs=EPSG:4326
extension=png

When I call tilecache_seed: ./tilecache_seed.py SCGAHFRADAR 0 1
I get:
###### (0, 0, 0), (1, 1, 0)
Cache miss: -82.0,29.0,-75.0,36.0, Tile: x: 0, y: 0, z: 0, time:
0.77469587326
00 (000000, 000000) = (-82.0000 29.0000 -75.0000 36.0000) [0.7748s :
1.290/s] 1/1
Cache miss: -75.0,29.0,-68.0,36.0, Tile: x: 1, y: 0, z: 0, time:
0.228764057159
00 (000001, 000000) = (-75.0000 29.0000 -68.0000 36.0000) [0.2289s :
1.992/s] 2/1
Cache miss: -82.0,36.0,-75.0,43.0, Tile: x: 0, y: 1, z: 0, time:
0.54825091362
00 (000000, 000001) = (-82.0000 36.0000 -75.0000 43.0000) [0.5484s :
1.932/s] 3/1
Cache miss: -75.0,36.0,-68.0,43.0, Tile: x: 1, y: 1, z: 0, time:
0.895043849945
00 (000001, 000001) = (-75.0000 36.0000 -68.0000 43.0000) [0.8952s :
1.634/s] 4/1

I get the correct tile, then a tile from another bounding box. Using a WMS
query for the same layer does results in the correct tile being generated
and not an extra tile with the bogus bounding box.

Dan 
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