[Qgis-user] CRS and scales

[Etienne Tourigny]

On Wed, Jan 29, 2014 at 10:56 AM, Alexandre Neto <senhor.neto at gmail.com>wrote:

> Hello Pat,
>
> The data is probably in different CRSs. Setting the CRS of the layers
> won't change the data itself, it only asks QGIS to try represent the data
> in that specific CRS. If you set it wrong (or if QGIS guess it wrong) the
> layers won't be represented at the correct coordinates.
>
> You must find out the the correct CRS of each layer (ask where you get
> your data) and set it using Right-click layer > Set Layer CRS.
>

Correct me if I am wrong, but this only changes the CRS, but does not
reproject the data.  You need to save the layer with a different CRS.


>
> Now... the minus value of the scale is quite odd, can you send a sample of
> your data?
>
> Best regards,
>
> Alexandre Neto
>
>
>
> On Wed, Jan 29, 2014 at 11:31 AM, Pat Brown <mistyhaven at gmail.com> wrote:
>
>> I have two layers (Shp files) which, when I open them, appear to be in
>> two different projections (I am using QGIS 2.0.1 on Win 7 prof). I have
>> followed all the instructions to get them to to project the same but they
>> still will not overlay each other. When I check the CRS for each layer they
>> are the same. I have set the project CRS to be the same. The only
>> difference that I can find is that the scales of the two layers are totally
>> different. The one scale is 1:7397941 and the other is 1:-2147483648(the minus sign is correct). This is just too weird. Can anyone explain
>> what is happening (so I can rectify it myself in future) and how to go
>> about correcting this to get the right display?
>>
>> Thanks,
>>
>> Paddy
>>
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>
>
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