Thanks Even, I suspected this, GML is still not that widely used for CRS definition seemingly.
Unluckily I have strong reasons to use GML, so do you know if there are is some developing in progress to support a wider range of projections from/to the XML representation? Piero On 30 July 2012 15:33, Even Rouault <[email protected]> wrote: > Piero, > > > Dear list, > > (PREFACE: I was looking for a *gdal-users* list but I could see it does > not > > exists; I hope I am in the right place) > > You're in the right place. There's only one mailing list for GDAL users, > developers, followers, fans, etc... ;-) > > > Any hint about the source of error? > > Is there some restriction on the CRS definition in the XML form or am I > > missing some parameter or is this a bug in the utility? > > Nothing wrong on your side or in gdalsrsinfo, but looking at the code for > import/export support of the XML representation of SRS in the library, I > can see > that it only supports the Transverse Mercator projection in import, and > Transverse Mercator and LCC 1SP in export. Here you have LAEA, hence the > error. > > There's also another error, due to the +a and +b parameter being equal, > this > leads to an inverse flattening equal to 0. And in the code that deals with > import, there's a test that forbids 0 as inverse flattening. I believe > this test > could be safely removed, as 0 inverse flattening is usually used for the > sphere. > Or perhaps the cleaner way would be to export the semiMinorAxis instead of > the > inverse flattening in that case. > > Well, the conclusion is that XML support for SRS has currently a few > restrictions. So, unless you have strong reasons to use the XML > representation > of SRS, I'd suggest using WKT instead. > > Best regards, > > Even > > > >
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