[MapProxy] Transparent Tile Cache over Tile Server

[Greg Albrecht]

Thanks for the help thus-far Oliver, and I apologize if I'm not grasping
the problem appropriately on my side, but with the configuration you've
sent over I no longer see my Special-Event tiles.

Config is as follows:

https://gist.github.com/ampledata/48b982196ffb9aa21c6ddc79863ce3c0

I've tried omitting the 'custom_format' as well, to no avail.

Thanks for any further help!

-g


On Fri, Aug 3, 2018 at 12:02 AM, Oliver Tonnhofer <olt at omniscale.de> wrote:

> Hi,
>
> sorry I haven't read your first mail careful enough.
>
> You second configuration does not work, because MapProxy does not load the
> OSM tile to place it behind you Special-Event tiles if there is already a
> tile in the cache.
>
> You need something like:
>
> layers:
>   - name: combined_layer
>     title: osm + osl
>     sources: [combined_cache]
>
> caches:
>   combined_cache:
>     grids: [webmercator]
>     sources: [osm_cache, osl_cache]
>
>   osl_cache:
>     grids: [webmercator]
>     sources: []
>     format: custom_format
>     cache:
>       type: file
>       directory: /mapproxy/osl/
>       directory_layout: tms
>
> sources:
>   osm:
>     type: tile
>     grid: GLOBAL_WEBMERCATOR
>     url: http://a.tile.openstreetmap.org/%(z)s/%(x)s/%(y)s.png
>     transparent: true
>
>
>
> Regards,
> Oliver
>
> --
> Oliver Tonnhofer  | Omniscale GmbH & Co KG  | https://omniscale.com
> OpenStreetMap WMS and tile services         | https://maps.omniscale.com
>
>
>
>
>
>
>
> > On 1. Aug 2018, at 20:55, Greg Albrecht <gba at gregalbrecht.com> wrote:
> >
> > Thanks for the help Oliver. I've updated the config as follows:
> >
> > https://gist.github.com/ampledata/13434095e2923d25e2e4f36b1902b69e
> >
> > Unfortunately what I'm seeing is the Special-Event tiles (right) as
> non-transparent over the OSM tiles (left) in the background:
> >
> > https://www.dropbox.com/s/t8gkchp1o9le8jw/Screenshot%
> 202018-08-01%2011.53.06.png?dl=0
> >
> > Thanks,
> > -g
> >
> >
> >
> > On Wed, Aug 1, 2018 at 5:02 AM, Oliver Tonnhofer <olt at omniscale.de>
> wrote:
> > Hi,
> >
> > you need to 'mark' your tile source as transparent:
> > https://mapproxy.org/docs/nightly/configuration_
> examples.html#merge-tile-sources
> >
> >
> > Regards,
> > Oliver
> >
> > --
> > Oliver Tonnhofer  | Omniscale GmbH & Co KG  | https://omniscale.com
> > OpenStreetMap WMS and tile services         | https://maps.omniscale.com
> >
> >
> >
> >
> >
> >
> >
> > > On 30. Jul 2018, at 20:37, Greg Albrecht <gba at gregalbrecht.com> wrote:
> > >
> > > Hi All,
> > >
> > > I'm trying to use a Special-Event PDF as a transparent layer overlay
> for an existing OSM Tile Source. I've already used MapTiler to split the
> PDF into the appropriate tiles and can export them as a TMS directory
> structure or as a mbtiles file.
> > >
> > > If I use a tile server to host the Special-Event tiles and use a
> combined cache to provide a layer to my web browser (via WMTS), the
> Special-Event tiles are transparent and I can see all the way through to
> the underlying OSM tiles.
> > >
> > > Config: https://gist.github.com/ampledata/
> c60602300ea02adb744b216a0b21439a
> > >
> > > If I use a local TMS file cache to host the Special-Event tiles and
> use a combined cache to provide a layer to my web browser (via WMTS), I can
> ONLY see the Special-Event tiles and I cannot see the underlying OSM tiles:
> > >
> > > Config: https://gist.github.com/ampledata/
> e81f8848d92621774e0cb2d3973edb64
> > >
> > > I'd prefer using a local TMS file cache to host the Special-Event
> tiles, and have them be transparent on top of the externally hosted OSM
> tiles. I appreciate any pointers on what might be wrong with my config.
> > >
> > > The tile files themselves are: "PNG image data, 256 x 256, 8-bit
> colormap, non-interlaced"
> > >
> > > Thanks,
> > > -g
> > >
> > >
> > > --
> > > Greg Albrecht <gba at gregalbrecht.com> W2GMD
> > > EMT, Emergency & Disaster Communications Supervisor
> > > Mobile: 1-415-598-8226
> > > http://ampledata.org/
> > > http://twitter.com/ampledata
> > > https://github.com/ampledata
> > > _______________________________________________
> > > MapProxy mailing list
> > > MapProxy at lists.osgeo.org
> > > https://lists.osgeo.org/mailman/listinfo/mapproxy
> >
> >
> >
> >
> > --
> > Greg Albrecht <gba at gregalbrecht.com> W2GMD
> > EMT & Disaster Communications Specialist
> > Mobile: 1-415-598-8226
> > http://ampledata.org/
> > http://twitter.com/ampledata
> > https://github.com/ampledata
>
>


-- 
Greg Albrecht <gba at gregalbrecht.com> W2GMD
EMT & Disaster Communications Specialist
Mobile: 1-415-598-8226
http://ampledata.org/
http://twitter.com/ampledata
https://github.com/ampledata
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