[MapProxy] empty image on small scales

[dirk.thalheim at bkg.bund.de]

Ah, perfect! That's the configuration I was looking for. Thank you!

Kind regards, Dirk

Dirk Thalheim
_____________________________________
Referat GI 5 / Dienstleistungszentrum
Bundesamt für Kartographie und Geodäsie

Karl-Rothe-Str. 10 - 14, 04105 Leipzig
Telefon: +49 (0)341 5634 311
E-Mail: dirk.thalheim at bkg.bund.de<mailto:dirk.thalheim at bkg.bund.de>
Funktionspostfach: GI5 at bkg.bund.de<mailto:GI5 at bkg.bund.de>
Internet: http://www.bkg.bund.de<http://www.bkg.bund.de/>



Von: Holger Schiebold [mailto:hschiebold at codematix.de]
Gesendet: Dienstag, 28. April 2015 13:20
An: Thalheim, Dirk
Betreff: Re: [MapProxy] empty image on small scales

Hello,

maybe you're outside the first level of your grid and you can play with max_shrink_factor in globals/image in your mapproxy conf.

regards Holger


Am 27.04.2015 um 15:54 schrieb dirk.thalheim at bkg.bund.de<mailto:dirk.thalheim at bkg.bund.de>:
Dear list,

I'm using MapProxy to serve a WMS from a WMTS source. So far it works great.

Unfortunately when I zoom out at a scale of around 1:75.000.000 it stops displaying the map and an empty image is returned. Looking into the source request logging it shows that no request at all is triggered in that case. Do you have any ideas why this happens and how to avoid this? I want to display the map over all scales.

Here is my layer, cache and source configuration:

layers:
  - name: 'test'
    title: Test
    sources: [cache_test]

caches:
  cache_test:
    grids: [default028mm]
    sources: [wmts_test]
    disable_storage: true

sources:
  wmts_test:
    type: tile
    url: http://server/service/wmts/tile/%(z)s/%(y)s/%(x)s<http://server/service/wmts/tile/%25(z)s/%25(y)s/%25(x)s>
    grid: default028mm
    transparent: true
    coverage:
      bbox: [-35.99999055523457, 18.404252334645022, 53.999993942633786, 79.32196275583068]
      bbox_srs: EPSG:4326

grids:
  default028mm:
    srs: 'EPSG:25832'
    tile_size: [256, 256]
    res: [4891.96981025128,
          2445.98490512564,
          1222.99245256282,
          611.49622628141,
          305.748113140705,
          152.874056570353,
          76.4370282851763,
          38.2185141425881,
          19.1092570712941,
          9.55462853564703,
          4.77731426782352,
          2.38865713391176,
          1.19432856695588,
          0.597164283477939,
          0.29858214173897]
    bbox: [-3803165.98427299, 2544186.7257000003, 3710899.6443000007, 8805908.08284866]
    bbox_srs: 'EPSG:25832'
    origin: 'ul'

Kind regards,

Dirk


Dirk Thalheim
_____________________________________
Department GI 5
Federal Agency for Cartography and Geodesy (BKG)

Karl-Rothe-Str. 10 - 14, 04105 Leipzig
phone: +49 (0)341 5634 311
personal email: dirk.thalheim at bkg.bund.de<mailto:dirk.thalheim at bkg.bund.de>
department email: GI5 at bkg.bund.de<mailto:GI5 at bkg.bund.de>
internet: http://www.bkg.bund.de<http://www.bkg.bund.de/>






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Holger Schiebold





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