[Qgis-user] Help cutter raster

[Germán Carrillo]

Hi Lorena,

if you want to clip an image by using a mask layer, you must create first
that mask layer, which must be a polygon layer. You can do so in
Layer->New->New Shapefile Layer. Set for the mask layer the same reference
system of the image.

If you still have troubles please send to this list a detailed description
of the error you get, e.g., a screenshot or the error message.

I tried this out in QGIS 1.8.0 and it works.

Regards,

Germán

2012/8/28 lorena Coelho <lorena.r.coelho at gmail.com>

> Hola, Muchas Gracias.
>  Voy a intentar explicarme. Estoy usando Quantum Gis 1.8.0 Lisboa. Para
> cortar un raster voy a RASTER/EXTRACCIÓN/CLIPPER. entonces se me abre un
> ventana que en el medio dice; Modo de corte y tengo dos opciones
> por extensión o por capa de mascara.
>
> Por extensión puedo cortar el raster sin problema pero..por capa de
> mascara no estoy pudiendo.
>  Lo cual no me esta permitiendo realizar cortes irregulares.
>
> Espero me puedan ayudar...Gracias
>
>
> 2012/8/28 Germán Carrillo <carrillo.german at gmail.com>
>
>> Or post your question in Spanish here, I know there is some people who
>> would understand, and  even if they are not able to solve your doubts, they
>> would help you rephrasing your question in English.
>>
>>
>> 2012/8/28 Etienne Tourigny <etourigny.dev at gmail.com>
>>
>>> Hi I'm sorry but I don't understand your question... you mean that it
>>> doesn't work if the raster is a mask?
>>>
>>> By the way, there is a Spanish list at osgeo, although not specific to
>>> qgis
>>>
>>> http://lists.osgeo.org/pipermail/spanish/
>>>
>>> Etienne
>>>
>>> On Tue, Aug 28, 2012 at 3:39 PM, lorena Coelho
>>> <lorena.r.coelho at gmail.com> wrote:
>>> > Hi, thanks for your quick response. The add gdaltools what I have on.
>>> In
>>> > fact cut a raster if I can, so I can not cut the raster is a mask.
>>> That is
>>> > asking that the court limit is determined mask. Thanks. Lorena
>>> >
>>> >
>>> > 2012/8/28 Germán Carrillo <carrillo.german at gmail.com>
>>> >>
>>> >> Believe it or not, names in 'Spanish' are:
>>> Ráster->Extraction->Clipper :)
>>> >> (Ráster->Extracción->Cortador/Cortar)
>>> >>
>>> >>
>>> >> 2012/8/28 Etienne Tourigny <etourigny.dev at gmail.com>
>>> >>>
>>> >>> make sure gdaltools plugins is enabled (plugins->Manage Plugins),
>>> then
>>> >>> go to Raster->Extraction->clipper. Not sure what the names are in
>>> >>> español though.
>>> >>>
>>> >>> On Tue, Aug 28, 2012 at 12:37 PM, lorena Coelho
>>> >>> <lorena.r.coelho at gmail.com> wrote:
>>> >>> > Hello,
>>> >>> > I am a magister student in Uruguay. I'm working with QGIS. I can
>>> not
>>> >>> > cut a
>>> >>> > raster mask,  can someone help. What is the complement need? I'm
>>> using
>>> >>> > Quantum GIS 1.8.0 Lisbon
>>> >>> > thanks
>>> >>> >
>>> >>> >
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>>>
>>
>>
>>
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>> Soluciones Geoinformáticas Libres
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>> http://twitter.com/GeoTux2
>>
>>
>


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