[Qgis-user] Cannot open GML files in Qgis 2.6 under Windows

[Andreas Demey]

Thanks for your clarifications, Richard!

I now understand that GML will not help me any further.
For two shapefiles which I commonly use (soil map of Belgium and map of 
biological value), I made .qml legends myself now.
Since the 2.6 release this is much easier because of the colour picker 
tool. Nice feature!
I sent a message to geopunt whether they can add these .qml legends to 
their downloads.
I don't think they will do this (as this would require them to check 
these files for consistency with the original). Let's see.

Cheers!
Andreas


On 04/12/2014 13:23, Richard Duivenvoorde wrote:
> On 04-12-14 12:47, Andreas Demey wrote:
>
>> - Shapefiles come with .lyr of .avl (old format) files - you know that.
>> As far as I know, I cannot use these with Qgis (.qml or .SLD files needed).
>> - GML files are an open OGC standard format, and everywhere I find Qgis
>> should be able to open them.
> Well you can off course open the shapefiles, but you will not have the
> same styling as is defined in lyr/avl files. You could off course try to
> mimic that style and sent qml files to Geopunt :-)
>
>> When I try to open .gml files, I get a table, no geometry (nothing is
>> mapped). I have a windows install of Qgis 2.6. Are there any additional
>> plugins or libraries needed to make this work?
>> I found in this link (http://www.gdal.org/ogr_formats.html) that read
>> support needs Xerces or libexpat. Do these come with Qgis install? How
>> can I check wether I have these or how I should install these?
> Opening a gml file is the same as opening a shp file, no styling
> included. So it is the data you are after, you could get the shp files.
>
> That said, GML is a tricky beast because so much different constructs
> are possible, but normally QGIS (or actually OGR) is able to handle a
> lot of those.
>
> I tried it with this GML:
>
> https://downloadagiv.blob.core.windows.net/overstromingsgebieden-en-oeverzones/2014_01/Overstromingsgebieden_en_oeverzones_2014_01_GML.zip
>
> And indeed only get tables and no geometries...
>
> BUT if I use ogr to open them:
>
> ogrinfo -al Ogoz.gml
>
> OGRFeature(Ogoz):15
>    UIDN (Real) = 16
>    OIDN (Real) = 16
>    CODOGOZ (Integer) = 16
>    NAAMOGOZ (String) = OG Puttenbeek
>    NUMAC (Real) = 2014035191
>    ININMRID (String) = 20001
>    ININMR (String) = Provincie Vlaams-Brabant
>    OPPERVL (Real) = 17031.46
>    LENGTE (Real) = 969.01
>    POLYGON ((138955.079 183000.758,138911.506 182970.395,138897.621
>    ... truncated ...
>    183007.847,138961.648 183005.335,138955.079 183000.758))
>
> So apparently OGR sees the geometries, but QGIS not ??
>
> Dev's? Any idea about this?
> Should we open an issue?
>
> Regards,
>
> Richard Duivenvoorde


-- 
dr. ir. Andreas Demey
Scientific Researcher
Ghent University
Forest & Nature Lab
Geraardsbergsesteenweg 267
9090 Gontrode
Belgium
Tel. ++32(0)9 264 90 46
http://www.ugent.be/bw/forest-water-management/en/research/fornalab