Hi :)
Paul, I wondered if you managed to post a bug-report about this?  This guide
might help
http://wiki.documentfoundation.org/BugReport
Regards from
Tom :)


Paul Lens wrote
> 
> Thanks a lot to Giovanni for having checked.
> 
> I wondered where the difference of behaviour comes from.
> In fact, when the CRS is set in project properties TO EPSG: 3035, both 
> shapefiles match as Giovanni noticed it. But when this project-wide CRS 
> is set to EPSG: 31370, the shift appears.
> 
> Here is a link to both screenshots: 
> http://www.yousendit.com/download/T2dlak80YXliR0pBSXRVag.
> 
> As I explained in a former mail, this shift appears in QGIS 1.7.2 and 
> not in 1.6.
> 
> If you want to have a try, here are the links to the freely donwloadable 
> shapefiles:
>       - belgian (Walloon Region) Natura 2000 limits:
> http://environnement.wallonie.be/cartosig/telechargement/NATURA2000_DIFFUSION_BASE_MARS2010.zip
>  
> 
> use "NATURA2000_PERIMETRES.shp".
> 
>       - european Natura 2000 limits:
> www.eea.europa.eu/data-and-maps/data/natura-2000     (I use the 2009
> version)
> 
> NB: I can manage without the european data. I reported this as it might 
> help bug tracking and debugging.
> 
> Is this a bug of 1.7.2.? Should I file a ticket?
> 
> Thanks for all
> 
> 
> Paul
> 
> On 20/12/2011 15:06, Giovanni Manghi wrote:
>> Hi,
>>
>> beside the expected differences because the layers are from different
>> sources, I can't see any particular shift
>>
>> http://ubuntuone.com/7TJnox4OFSxdMaPteNMsW9
>>
>>
>> cheers
>>
>>
>> -- Giovanni --
>>
>>
>> On Mon, 2011-12-19 at 21:25 +0100, Paul Lens wrote:
>>> Hi,
>>>
>>> When I open projects saved earlier in QGIS 1.6 with 1.7.2, there is a
>>> shift between the belgian data, projected with EPSG 31370 (Belgian
>>> Lambert 72 conformal conic), and the european environmental agency data
>>> using  EPSG:3035 - ETRS89 / ETRS-LAEA.
>>> The european shapefile is shifted 103m: X: 94m westward; Y: 64m
>>> northward.
>>>
>>> Here are the links to the freely donwloadable shapefiles:
>>>       - belgian (Walloon Region) Natura 2000 limits:
>>> http://environnement.wallonie.be/cartosig/telechargement/NATURA2000_DIFFUSION_BASE_MARS2010.zip
>>>
>>>       - european Natura 2000 limits:
>>> www.eea.europa.eu/data-and-maps/data/natura-2000     (I use the 2009
>>> version)
>>>
>>> This seems to be a bug of QGIS 1.7.2. as I experienced no shift with
>>> QGIS 1.6, or do I miss something?
>>>
>>>
>>> Paul
>>>
>>> NB: QGIS 1.7.2 opens without problem an older project on the
>>> french-belgian border, where I experienced a shift between EPSG 31370
>>> and the different french Lambert projections.
>>>
>>> FIY: this was then solved thanks to ticket OSGEO 3362 by making a custom
>>> projection with a minus sign added to one of the elements:
>>>
>>> Custom projection:
>>> +proj=lcc +lat_1=51.16666723333333 +lat_2=49.8333339 +lat_0=90
>>> +lon_0=4.367486666666666 +x_0=150000.013 +y_0=5400088.438 +ellps=intl
>>> +towgs84=-106.8686,52.2978,-103.7329,0.3366,-0.457,1.8422,-1.2747
>>> +units=m +no_defs
>>>
>>> EPSG 31370:
>>>    +proj=lcc +lat_1=51.16666723333333 +lat_2=49.8333339 +lat_0=90
>>> +lon_0=4.367486666666666 +x_0=150000.013 +y_0=5400088.438 +ellps=intl
>>> +towgs84=-106.869,52.2978,-103.724,0.3366,-0.457,1.8422,1.2747 +units=m
>>> +no_defs
>>> _______________________________________________
>>> Qgis-user mailing list
>>> [email protected]
>>> http://lists.osgeo.org/mailman/listinfo/qgis-user
>>
>>
> 
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