[MapProxy] ArcGIS compact cache - how to get it working

dirk.thalheim at bkg.bund.de dirk.thalheim at bkg.bund.de
Fri Dec 11 02:39:56 PST 2020

Hello Johannes,

we're using mapproxy to serve ArcGIS compact caches as WMS/WMTS. Our cache is in version 1 (bundle + bundlex files). But we've also tested version 2 (only bundle files) successfully. I think caches from ArcGIS 10.4 should work.

Your cache configuration is missing the format option which defines the image format for the cache. If this is not the cause, you should check the grid definition in mapproxy. Please note that ESRIs scale definition doesn't match mapproxys scale definitions. I think the cause is due to different DPI settings and inch convertions.

Kind regards,

-----Ursprüngliche Nachricht-----
Von: MapProxy <mapproxy-bounces at lists.osgeo.org> Im Auftrag von Johannes Weskamm
Gesendet: Donnerstag, 10. Dezember 2020 17:48
An: mapproxy at lists.osgeo.org
Betreff: [MapProxy] ArcGIS compact cache - how to get it working

Dear List,

We are trying to figure out how the integration of an existing, local arcgis compact caches works.

The instructions of https://mapproxy.org/docs/1.13.0/caches.html#compact
have been followed closely:

    sources: []
    grids: [utm]
      type: compact
      version: 2
      directory: D:\cache\_alllayers

The grid has been configured with the information from the corresponding config files (srs, bbox, resolutions, tilesize).

Configuration saves without issues, but MapProxy only shows blank tiles afterwards for that layer. There are no log messages / errors, and the responses have status code 200, but the images are empty.

The cache has been created with ArcGIS Server 10.4. Is that version supported at all?

Any ideas how to get things working, e.g. missing / undocumented parameters?

Thanks in advance,

J. Weskamm

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