[gdal-dev] Documentation of .gfs file format

[Even Rouault]

Johannes,

You have a number of .gfs templates file in 
https://github.com/OSGeo/gdal/tree/master/data

Otherwise just read the code of GMLFeatureClass::InitializeFromXML() if 
you want to have the full view of what the GFS reader understand: 
https://github.com/OSGeo/gdal/blob/master/ogr/ogrsf_frmts/gml/gmlfeatureclass.cpp#L456 
which is the ultimate authoritative source. That said a .xsd file for 
.gfs could be useful, if that's something you'd be willing to contribute.

Even

Le 25/10/2022 à 15:16, Johannes Echterhoff a écrit :
>
> Hello,
>
> The documentation of the GML driver on 
> https://gdal.org/drivers/vector/gml.html has two sections that 
> describe the .gfs file format to some extent (section “Syntax of .gfs 
> file by example” and section “Advanced .gfs syntax”). When looking for 
> more information about the .gfs format, I came across 
> https://github.com/OSGeo/gdal/issues/1138, where <precision> was 
> mentioned as an additional element that can be used in .gfs files.
>
> Is the .gfs. file format documented somewhere in full detail? I would 
> like to write .gfs template files, and in order to do so, knowing all 
> available elements, options, as well as syntax requirements would be 
> great to know. So far, I only came across a number of examples – which 
> certainly help – but I would like to consult an authoritative source, 
> if there is one.
>
> Best regards,
>
> Johannes
>
>
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