[GRASS-user] gdal 1.5 and WMS ressource --- PREVIOUSLY:How to best access hundreds of orthophotos -- mapserver as WMS server?

[Rainer M Krug]

Moritz Lennert wrote:
> On 02/01/08 21:37, sebastian sauer wrote:
>> Wed 02 Jan 2008 18:27, Rainer M Krug wrote:
>>> you wrote in the a previous thread that one can use gdal 1.5 directly 
>>> to access a WMS ressource which is defined in an xml file (see 
>>> snippet below).
>>> As 1.5 is out (and I compiled with MrSid support - works nicely by 
>>> the way), I looked but could find no information on that feature. 
>>> Could you please elaborate how I can use this instead of setting up a 
>>> mapserver on localhost?
>> my understanding was - feel free to correct me - dylan was refering to
>> the OGR/GDAL vrt driver.
>>
>> http://www.gdal.org/gdal_vrttut.html
>> http://www.gdal.org/ogr/drv_vrt.html
> 
> I would rather guess it was the "WMS -- Web Map Services" driver:
> 

Ah - now I understand. I still have to set up a WMS server, but I can 
access it through gdal instead of using r.in.wms.

Thanks again,

Rainer


> http://www.gdal.org/frmt_wms.html
> 
> The page explains that you have to create an xml file such as this:
> 
> <GDAL_WMS>
>     <Service name="WMS">
>         <Version>1.1.1</Version>
>         <ServerUrl>http://onearth.jpl.nasa.gov/wms.cgi?</ServerUrl>
>         <SRS>EPSG:4326</SRS>
>         <ImageFormat>image/jpeg</ImageFormat>
>         <Layers>modis,global_mosaic</Layers>
>         <Styles></Styles>
>     </Service>
>     <DataWindow>
>         <UpperLeftX>-180.0</UpperLeftX>
>         <UpperLeftY>90.0</UpperLeftY>
>         <LowerRightX>180.0</LowerRightX>
>         <LowerRightY>-90.0</LowerRightY>
>         <SizeX>2666666</SizeX>
>         <SizeY>1333333</SizeY>
>     </DataWindow>
>     <Projection>EPSG:4326</Projection>
>     <BandsCount>3</BandsCount>
> </GDAL_WMS>
> 
> 
> I guess (but have never tried) that this would lead to an r.in.gdal line 
> such as:
> 
> r.in.gdal in=YourFile.xml out=GRASSLayerName
> 
> Moritz