[Qgis-user] Why QGIS change the SRS?

[Goyo]

No, those are WKT and they include some data which is different (name
and EPSG code). The proj4 strings are identical:

http://spatialreference.org/ref/epsg/etrs89-etrs-tm30/proj4/
http://spatialreference.org/ref/epsg/etrs89-utm-zone-30n/proj4/

2017-02-21 8:02 GMT+01:00 Rafa García Castillo <ragaca at gmail.com>:
>   Sorry Goyo. I think the PROJ string is in the previous message from
> Alexandre. I suppose that´s the right answer...
>
>   Thanks
>
>   Rafa
>
> 2017-02-21 7:12 GMT+01:00 Rafa García Castillo <ragaca at gmail.com>:
>>
>> Hi Hoyo. It could be what you've said. How can I see how it looks the
>> PROJ4 string?
>> Thanks
>> Rafa
>>
>> El 20 feb. 2017 9:14 p. m., "Goyo" <goyodiaz at gmail.com> escribió:
>>>
>>> I think it is because it looks at the proj4 string, which is the same.
>>>
>>> 2017-02-17 10:59 GMT+01:00 Rafa García Castillo <ragaca at gmail.com>:
>>> >   Thanks Alexandre for answering. Yes, those projections are quite
>>> > similar,
>>> > but one is in UTM coordinates and the other is TM. I can imagine that
>>> > the
>>> > use of both projections is the same in most of the cases, but makes me
>>> > wonder why QGIS does this change, because they have different EPSG
>>> > code.
>>> >
>>> >   Thanks again.
>>> >
>>> >   Rafa
>>> >
>>> > El 16 feb. 2017 12:45 p. m., "Alexandre Neto" <senhor.neto at gmail.com>
>>> > escribió:
>>> >>
>>> >> Seems that those two projections are equal:
>>> >>
>>> >> http://spatialreference.org/ref/epsg/etrs89-utm-zone-30n/html/
>>> >>
>>> >> http://spatialreference.org/ref/epsg/etrs89-etrs-tm30/html/
>>> >>
>>> >> If you want to force EPSG:25830 into that layer, use the Vector >
>>> >> Management tools > Define Projection
>>> >>
>>> >>
>>> >>
>>> >> Rafa García Castillo <ragaca at gmail.com> escreveu no dia quinta,
>>> >> 16/02/2017
>>> >> às 11:11:
>>> >>>
>>> >>>   Hello everybody,
>>> >>>
>>> >>>   Just one question: I am using QGIS v2.18. I start a project using
>>> >>> EPSG:25830. When I load a SHP layer into QGIS, then QGIS change the
>>> >>> SRS of
>>> >>> the project "on the fly" to EPSG:3042, even when the PRJ file of the
>>> >>> SHP
>>> >>> layer shows that the SHP is in EPSG:25830. Why?
>>> >>>
>>> >>>   Thanks in advance
>>> >>>
>>> >>>   Rafa
>>> >>> _______________________________________________
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>>> >>
>>> >> --
>>> >> Alexandre Neto
>>> >> ---------------------
>>> >> @AlexNetoGeo
>>> >> http://sigsemgrilhetas.wordpress.com
>>> >> http://gisunchained.wordpress.com
>>> >
>>> >
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>