[MapProxy] ZeroDivisionError in mapproxy-seed

[Bjoern Platzen]

Hello list,

I just configured a mapproxy instance and everything seems to work fine 
except the mapproxy-seed tool.
When I try to seed (in run-dry mode) a layer that works fine through the 
mapproxy service, I get the following Traceback:

Start seeding process (1 task)
   myseed1:
     Seeding cache 'osm_cache' with grid 'global_geodetic_sqrt2' (EPSG:4326)
     Limited to: (-0.85269, 42.51584, 31.09580, 55.38334)
     Levels: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 
17, 18, 19, 20, 21, 22, 23, 24]
     Overwriting: tiles older than 2011-12-31 12:35:00
Traceback (most recent call last):
   File "/opt/mapproxy/venv/bin/mapproxy-seed", line 8, in <module>
     load_entry_point('MapProxy==1.0.0', 'console_scripts', 
'mapproxy-seed')()
   File 
"/opt/mapproxy/venv/lib/python2.6/site-packages/mapproxy/seed/script.py", 
line 176, in main
     return SeedScript()()
   File 
"/opt/mapproxy/venv/lib/python2.6/site-packages/mapproxy/seed/script.py", 
line 112, in __call__
     skip_geoms_for_last_levels=options.geom_levels)
   File 
"/opt/mapproxy/venv/lib/python2.6/site-packages/mapproxy/seed/seeder.py", 
line 267, in seed
     tile_walker.walk()
   File 
"/opt/mapproxy/venv/lib/python2.6/site-packages/mapproxy/seed/seeder.py", 
line 141, in walk
     self._walk(bbox, self.task.levels)
   File 
"/opt/mapproxy/venv/lib/python2.6/site-packages/mapproxy/seed/seeder.py", 
line 152, in _walk
     bbox_, tiles, subtiles = 
self.grid.get_affected_level_tiles(cur_bbox, current_level)
   File 
"/opt/mapproxy/venv/lib/python2.6/site-packages/mapproxy/grid.py", line 
852, in get_affected_level_tiles
     x0 = x0//meta_size[0] * meta_size[0]
ZeroDivisionError: integer division or modulo by zero


The seed configuration looks like this:

seeds:
   myseed1:
     caches: [osm_cache]
     grids: [global_geodetic_sqrt2]
     coverages: [germany]
     refresh_before:
       time: 2011-12-31T12:35:00


cleanups:
   clean1:
     caches: [osm_cache]
     grids: [global_geodetic_sqrt2]

coverages:
   austria:
     bbox: [9.36, 46.33, 17.28, 49.09]
     bbox_srs: EPSG:4326
   germany:
     bbox: 
[2064052.224579244,4915664.3518403955,4181319.125883109,6140458.009400783]
     bbox_srs: 'EPSG:31466'

The mapproxy configuration looks like this:

services:
   demo:
   kml:
   tms:
   wms:
     srs: ['EPSG:4326', 'EPSG:900913', 'EPSG:31466', 'EPSG:31467', 
'EPSG:25832']
     image_formats: ['image/jpeg', 'image/png', 'image/gif']
     md:
       title: MapProxy
       abstract: This is a MapProxy Service.
       online_resource: http://www.almoconsult.de/
       fees: 'None'

layers:
   - name: osm
     title: Omniscale OSM WMS - osm.omniscale.net
     sources: [osm_cache]

caches:
   osm_cache:
     grids: [GLOBAL_MERCATOR, global_geodetic_sqrt2]
     sources: [osm_wms]
     meta_size: [2, 2]

sources:
   osm_wms:
     type: wms
     wms_opts:
       version: 1.1.0
       featureinfo: false
     req:
       url: http://server:port/wms?
       layers: layername

grids:
   global_geodetic_sqrt2:
     base: GLOBAL_GEODETIC
     res_factor: 'sqrt2'
     min_res: 6000000
     max_res: 2000
     bbox: 
[2064052.224579244,4915664.3518403955,4181319.125883109,6140458.009400783]
     bbox_srs: 'EPSG:31466'

globals:
   image:
       resampling_method: bilinear


Do I have any configuration bugs here? Any help would be highly appreciated.

Cheers,

Bjoern