WMTS/REST services in MapServer with GDAL
What I have learned sense my last post on REST/WMTS in MapServer is that ArcOnline REST services are known as WMTS or web map tile services and with GDAL 1.7 or better you can use an xml proxy file in conjunction with gdal to access any WMTS. With this configuration the WMTS behaves like any WMS. Speed and performance is comparable to WMS but resolution is sometimes iffy. My layer def and gdal xml file is as follows. Thanks to Robert, Mark, and others .
LAYER
NAME "esri_imagery"
TYPE RASTER
STATUS OFF
DATA "/data/gis/www/html/cso/esri_imagery.xml"
PROCESSING "OVERSAMPLE_RATIO=1.0"
METADATA
"wms_title" "World_Imagery"
"wms_name" "World_Imagery"
"wms_srs" "EPSG:3785"
END
PROJECTION
"init=epsg:3785"
END
CLASS
NAME "ESRI Imagery"
KEYIMAGE "/data/gis/www/html/ms_common/colorphoto_sym.png"
END
END
<GDAL_WMS>
<Service name="TMS">
<Version>1.1.1</Version>
<ServerUrl>http://services.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer/tile/${z}/${y}/${x}.png</ServerUrl>
</Service>
<DataWindow>
<UpperLeftX>-20037508.342787</UpperLeftX>
<UpperLeftY>20037508.342787</UpperLeftY>
<LowerRightX>20037508.342787</LowerRightX>
<LowerRightY>-20037508.342787</LowerRightY>
<TileLevel>19</TileLevel>
<TileCountX>1</TileCountX>
<TileCountY>1</TileCountY>
<YOrigin>top</YOrigin>
</DataWindow>
<Projection>EPSG:3857</Projection>
<BlockSizeX>256</BlockSizeX>
<BlockSizeY>256</BlockSizeY>
<BandsCount>3</BandsCount>
<Cache />
</GDAL_WMS>
Change History
(3)
Cc: |
havatv added
|
Resolution: |
→ wontfix
|
Status: |
new → closed
|
Description: |
modified (diff)
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I think it is improper to call such service a WMTS one. It is a TMS one. WMTS is an OGC standard taht is not handled by GDAL. You can perphaps make WMTS tiles look like TMS ones, which I'm not even sure, but the full WMTS standard is for sure not handled by the GDAL WMS driver.