[Qgis-user] Reclass Vector

[Mariana Buzzi]

Hi Carlos!
No se me ocurrio trabajarlo en raster. Es un ejercicio que se planteo desde
una catedra de la facultad. Antiguamente trabajamos con Idrisi pero a
partir de ahora queremos q los alumnos usen open source.
Desde raster es mas sencillo?
El area de estudio a conservar fue creada de forma arbitraria solo para
aprender la tecnica.
Gracias
Saludos desde la Patagonia.
Mariana.
El 17/08/2015 10:12, "Carlos Cerdán" <sig.upagu at gmail.com> escribió:

> Hi Mariana:
>
> If I understand you well, you need to create a new field, making an
> expresssion in field calculator, something as:
>
> case
> when conservative>=1 and conservative<4 then 1
> when conservative>=4 and conservartive<32 then 0
> end
>
> After that, you can try intersection... or union.
>
> What about to work as raster?
>
> Saludos desde Perú
>
> Carlos Cerdán
>
> 2015-08-16 23:42 GMT-05:00 Mariana Buzzi <marianabuzzi86 at gmail.com>:
>
>> HELLO Guys!!
>>
>> I want to make a demarcation of a nature reserve area, considering the
>> wealth of species and the conservation value of each. For this purpose in
>> the area of ​​study I designed a grilling in which I included the species
>> richness and other gridding the area in which I included the conservative
>> value species.
>>
>> What I do now is a relclasificación of these data as follows:
>> For cells with conservative values ​​[1-4) set the value of 1.
>> For cells with conservative [4-32 values) set to 0.
>>
>> Once this is done, I want to make an intersection of information, to
>> establish the relationship between the areas defined as priority and
>> species richness.
>>
>> My problem starts to perform the mecionada reclassification, ie designate
>> values ​​of 0 and 1 at intervals raised. The other problem is how do I make
>> the crossing of information? What function the qgis?
>>
>> Thank You !!!!
>> I await your news !!!!
>>
>> PS: I speak Spanish.
>>
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>>
>
>
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