[Gdal-dev] GDAL WMS Questions..

[Fodder]

mchapman wrote:
> 
> I think you just pass the file path of the XML file to the GDALOpen
> method.
> That's how the WMS client works.  Then just call RasterIO() and work with
> it
> the same way you would any other raster.  That is my guess anyway.
> 
> Martin
> 

Thanks, I tried this at first but when I pass the filepath to the GDALOpen
method I just get a nil object back (the code works for other images). I'm
just using the demo xml from the gdal.org site:

<GDAL_WMS>
    <Service name="TileService">
        <Version>1</Version>
       
<ServerUrl>http://s0.tileservice.worldwindcentral.com/getTile?</ServerUrl>
        <Dataset>za.johannesburg_2006_20cm</Dataset>
    </Service>
    <DataWindow>
        <UpperLeftX>-180.0</UpperLeftX>
        <UpperLeftY>90.0</UpperLeftY>
        <LowerRightX>180.0</LowerRightX>
        <LowerRightY>-90.0</LowerRightY>
        <SizeX>268435456</SizeX>
        <SizeY>134217728</SizeY>
        <TileLevel>19</TileLevel>
    </DataWindow>
    <Projection>EPSG:4326</Projection>
    <OverviewCount>16</OverviewCount>
    <BlockSizeX>512</BlockSizeX>
    <BlockSizeY>512</BlockSizeY>
    <BandsCount>3</BandsCount>
</GDAL_WMS>
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