[MapProxy] WMTS service with multiple BBox

[Oliver Tonnhofer]

Hi,

this is not supported by MapProxy.
(Are there other clients that do support this?)


Regards,
Oliver

-- 
Oliver Tonnhofer  | Omniscale GmbH & Co KG  | https://omniscale.com
OpenStreetMap WMS and tile services         | https://maps.omniscale.com







> On 4. Jan 2018, at 17:32, Thomas Polaert <thomas.polaert at prysm.fr> wrote:
> 
> Hi,
> 
> I'm using a WMTS server as a source for a WMS service. 
> 
> The issue I have is that the WMTS service provides a slightly different
> TopLeftCorner for each TileMatrix in the TileMatrixSet.
> For ex:
> TileMatrix #0        <TopLeftCorner>455642.960778
> 5478004.782551</TopLeftCorner>
> TileMatrix #1        <TopLeftCorner>455642.960778
> 5488097.335224</TopLeftCorner>
> 
> As a result, WMS tiles are shifted up and down depending on the zoom level
> (left corner is ok)
> 
> Can MapProxy handle grids where the bounding box changes for every zoom
> level?  
> Any advice are welcome.
> 
> Thanks,
> Thomas
> 
> Here is a extract of the WMTS GetCapabilities :
> 
> <TileMatrixSet>
>    <ows:Identifier>3857</ows:Identifier>
>    <ows:BoundingBox crs="urn:ogc:def:crs:EPSG:6.3:3857">
>        <ows:LowerCorner>455642.960778 5326616.492390</ows:LowerCorner>
>        <ows:UpperCorner>676941.368957 5471417.006390</ows:UpperCorner>
>    </ows:BoundingBox>
>    <ows:SupportedCRS>urn:ogc:def:crs:EPSG:6.3:3857</ows:SupportedCRS>
>    <TileMatrix>
>        <ows:Identifier>0</ows:Identifier>
>        <ScaleDenominator>352000.30264285713201388717</ScaleDenominator>
>        <TopLeftCorner>455642.960778 5478004.782551</TopLeftCorner>
>        <TileWidth>256</TileWidth>
>        <TileHeight>256</TileHeight>
>        <MatrixWidth>9</MatrixWidth>
>        <MatrixHeight>6</MatrixHeight>
>    </TileMatrix>
>    <TileMatrix>
>        <ows:Identifier>1</ows:Identifier>
>        <ScaleDenominator>281600.24210714286891743541</ScaleDenominator>
>        <TopLeftCorner>455642.960778 5488097.335224</TopLeftCorner>
>        <TileWidth>256</TileWidth>
>        <TileHeight>256</TileHeight>
>        <MatrixWidth>11</MatrixWidth>
>        <MatrixHeight>8</MatrixHeight>
>    </TileMatrix>
> [...]
>    <TileMatrix>
>        <ows:Identifier>11</ows:Identifier>
>        <ScaleDenominator>1056.00090714285715876031</ScaleDenominator>
>        <TopLeftCorner>455642.960778 5471419.391821</TopLeftCorner>
>        <TileWidth>256</TileWidth>
>        <TileHeight>256</TileHeight>
>        <MatrixWidth>2924</MatrixWidth>
>        <MatrixHeight>1913</MatrixHeight>
>    </TileMatrix>
> </TileMatrixSet>
> </Contents>
> </Capabilities>
> 
> 
> 
> Here is my MapProxy configuration:
> 
> services:
>  demo:
>  wms:
>    srs: ['EPSG:4326']
> 
> layers:
>  - name: my_layer
>    title: WMS layer from WMTS
>    sources: [my_cache]
> 
> caches:
>  my_cache:
>    grids: [my_grid]
>    sources: [my_source]
> 
> sources:
>  my_source:
>    type: tile
>    grid: my_grid
>    url:
> http://172.16.37.101/mapcache/wmts/?SERVICE=WMTS&REQUEST=GetTile&VERSION=1.0
> .0&LAYER=osm_default&TILEMATRIXSET=3857&TILEMATRIX=%(z)s&TILEROW=%(y)s&TILEC
> OL=%(x)s&FORMAT=image%%2Fpng
>    coverage:
>      bbox: [455642.960778, 5326616.492390, 676941.368957, 5471417.006390]
>      srs: 'EPSG:3857'
> 
> grids:
>  my_grid:
>    origin: 'nw'
>    bbox: [455642.960778, 5326616.492390, 676941.368957, 5471417.006390]
>    srs: 'EPSG:3857'
>    res: [
>         #  res            level     scale @90.7 DPI
>           98.5600847400, #  0      352000.30264286
>           78.8480677900, #  1      281600.24210714
>           59.1360508400, #  2      211200.18157143
>           39.4240338900, #  3      140800.12103571
>           29.5680254200, #  4      105600.09078571
>           19.7120169500, #  5       70400.06053571
>            9.8560084740, #  6       35200.03026429
>            3.9424033890, #  7       14080.01210357
>            2.7596823730, #  8        9856.00847500
>            1.5769613560, #  9        5632.00484286
>            0.7884806780, # 10        2816.00242143
>            0.2956802540, # 11        1056.00090714
>    ]
> 
> 
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