[MapProxy] Seed zoom level 20 (version 1.6)

[Paul Norman]

> From: mapproxy-bounces at lists.osgeo.org [mailto:mapproxy-
> bounces at lists.osgeo.org] On Behalf Of Billy Newman
> Sent: Wednesday, March 19, 2014 12:03 PM
> To: mapproxy at lists.osgeo.org
> Subject: [MapProxy] Seed zoom level 20 (version 1.6)
> 
> I am using version 1.6 I am trying to seed up to level 20:

This may be an off by one error. I'd have to see your grid 
definition, but my zoom 20 web Mercator grid has num_levels: 21
(https://github.com/osm-ca/mapproxy-config-faramir/blob/master/grids.yaml#L3
8)

That being said, I've never seeded z20 because there are so 
many tiles that never get viewed.