[Tilecache] WMS getMap interface

[Simone Gadenz]

Peter,

thnks for the information.

Can you provide more info on how you calculated the calue of the sizex and
sizey tag?

I am having a sample dataset covering this geoextent:

1689098,4776277,1697478,4781885

Tilecache creates 2 by 2 tiles at level 0 so i supposed the right
configuration could be:

for the MAP file:

   layer
     name  "TEST"
     type raster
     status on
     data "/var/www/tilecache/test/wms_test.xml"
     extent 1689098 4776277 1697478 4781885

     METADATA
        "wms_title" 'TESTWMSC'
    "wms_srs" "EPSG:4267"
    "wms_extent" "1689098 4776277 1697478 4781885"
       END
     projection
    "init=epsg:4267"
     end
    offsite 0 0 0
    PROCESSING "CLOSE_CONNECTION=DEFER"
   END

For the xml of the driver:


<GDAL_WMS>
<Service name="WMS">
<Version>1</Version>
<ServerUrl>http://localhost/tilecache/tilecache.cgi/1.0.0</ServerUrl>
<Layers>TESTWMS</Layers>
<ImageFormat>image/png</ImageFormat>
<SRS>EPSG:4326</SRS>
</Service>
<DataWindow>
<UpperLeftX>1689098</UpperLeftX>
<UpperLeftY>4781885</UpperLeftY>
<LowerRightX>1697478</LowerRightX>
<LowerRightY>4784657</LowerRightY>
<SizeX>524288</SizeX>
<SizeY>524288</SizeY>
<TileCountX>2</TileCountX>
<TileCountY>2</TileCountY>
</DataWindow>
<Projection>EPSG:4326</Projection>
<BlockSizeX>256</BlockSizeX>
<BlockSizeY>256</BlockSizeY>
<BandsCount>3</BandsCount>
<ClampRequests>false</ClampRequests>
</GDAL_WMS>

I think that is wrong but i have not found any documentation so far. Any
help would be really appreciated. Thanks

S


2009/9/15 Soenke J. Peters <peters+tilecache.openlayers.org at opcenter.de>

> Hi,
>
> I solved this by using Mapserver serving the cached tiles from GDAL layers:
>
> From mapserver wms.map:
> ...
>    LAYER
>        NAME  "Stadtkarte_HH"
>        TYPE raster
>        STATUS ON
>        DATA "/var/www/mapserver/gdal-mrhh-stadtkarte.xml"
>        EXTENT 3426656.0 5829871.0 3674464.0 6077679.0
>        PROJECTION "init=epsg:31467"
> "nadgrids=/usr/share/proj/BETA2007.gsb" END
>        OFFSITE 0 0 0
>        METADATA
>            "wms_title"     "Stadtkarte HH"
>            "wms_extent"    "3426656.0 5829871.0 3674464.0 6077679.0"
>        END
>        PROCESSING "CLOSE_CONNECTION=DEFER"
>    END
> ...
>
> gdal-mrhh-stadtkarte.xml:
> <GDAL_WMS>
>    <Service name="WMS">
>        <Version>1</Version>
>        <ServerUrl>http://mapserver/tilecache/?TRANSPARENT=false
> </ServerUrl>
>        <Layers>Stadtkarte_HH</Layers>
>        <Dataset>Stadtkarte_HH</Dataset>
>        <ImageFormat>image/png</ImageFormat>
>        <SRS>EPSG:31467</SRS>
>    </Service>
>    <DataWindow>
>        <UpperLeftX>3426656.0</UpperLeftX>
>        <UpperLeftY>6077679.0</UpperLeftY>
>        <LowerRightX>3674464.0</LowerRightX>
>        <LowerRightY>5829871.0</LowerRightY>
>        <SizeX>524288</SizeX>
>        <SizeY>524288</SizeY>
>        <TileCountX>1</TileCountX>
>    </DataWindow>
>    <Projection>EPSG:31467</Projection>
>    <!-- <OverviewCount>0</OverviewCount> -->
>    <BlockSizeX>256</BlockSizeX>
>    <BlockSizeY>256</BlockSizeY>
>    <BandsCount>3</BandsCount>
>    <ClampRequests>false</ClampRequests>
> </GDAL_WMS>
>
> I'm using the same technique for accessing Openstreetmap tiles via my WMS.
>
>
>
>
> --
>  ____   Soenke Jan Peters
>  |_  _|    22395 Hamburg, Germany
>  ._||      E-Mail & Jabber/XMPP: peters at opcenter.de
>           WWW: http://opcenter.de, GnuPG Key-ID: 0xF358FDC
>
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