[Gdal-dev] RE: Use of GDAL

[Martin Daly]

Norman,

Do you have a URL for the WCS?  I'd like to try our client against it
(that uses GDAL for accessing the downloaded coverage, naturally).

Regards,
Martin

> Hi,
> 
> though I would write to tell you about an application of GDAL 
> which you can all use free of charge.
> 
> First of all, thanks Frank for all your help, in particular for 
> configuring our
> server!!
> 
> We are working  as part of a consortium under the ESA (European Space
> Agency) MASS project, and it is a research project to investigate 
> interoperability
> of EOS services using SOAP.
> 
> We decided to offer to put a SOAP wrapper around two 
> services.  The first service being gdalwarp (the reprojection 
> service) and the second service 
> being
> an orthocorrection service using the python wrappers to GDAL 
> and the very sexy MapServer WCS for serving SRTM data.
> 
> These services can be used individually or chained using the Oracle 
> workflow tool.
> 
> The reprojection service works exactly the same as gdalwarp, 
> the biggest 
> problem
> we face is restricting the target projections of gdalwarp for 
> a user to 
> something
> meaningful, as it is a free research project we haven't overcome this 
> (any ideas?).
> 
> The second service used the python api to GDAL and requests a 
> SRTM DEM from a MapServer WCS in 16 bit geotiff format it 
> then orthocorrects the input 
> satellite image
> using a similar algorithm to (sun) topographic correction.
> 
> To try the reprojection service do the following
> 
> 1) http://services.eoportal.org
> 2) Choose Services > Data Conversion > CSLReprojection
> 3) Fill in the following fields
> 
> Input Image : 
> ftp://anonymous:anonymous@hotmail.co.uk@ftp.remotesensing.org:
> 21/geotiff/samples/pci_eg/latlong.tif 
> 
> 
> Error Threshold:
> 0.125
> Sampling method:
> nearest neighbour
> Warp Polygon Order
> CRS:
> Common CRS
> 
> Then select target CRS to be WGS84
> 
> There are many improvements we could make to the HTML interface, in 
> particular the specification of the FTP address,
> but in practise, most invocations will be through SOAP in a 
> product chain.
> 
> (This is the bit to make my Manager happy!!)
> ComSine are a SME based in the UK, happy to take on all work,  both 
> commercial and research based, part funded, or
> wholly funded, www.comsine.com).
> 
> Thanks again to GDAL, a very easy to use and robust product.
> 
> Norman Barker