[Qgis-user] Geoprocessing dissolve tool

[Julie Pierson]

Thanks Ralf and Bernhard for your answers.

Sorry, my message wasn't clear, I'm trying to use the dissolve tool from 
the processing toolbox. Other dissolve tools won't do, since I use this 
tool for an extension I created (dissolve with stats), which calls the 
qgis:dissolve algorithm from the processing toolbox.

I'm using QGIS 2.8.3 Wien. Does it mean I'm not using your patch Bernhard ?

Thanks again,

Julie.


Le 21/09/2015 11:11, Bernhard Ströbl a écrit :
> Hi,
>
> I worked on the dissolve tool recently , and the work got commited a 
> couple days ago [1]
> So, if you are using current master, you must set the dissolve field 
> for the layer. If you are using a stable version of QGIS (e.g. 2.10) 
> you must untick the checkbox "Dissolve all (do not use field)". I 
> recommend to use my patch because it is a lot faster than the old 
> algorithm.
>
> Bernhard
>
> [1] 
> https://github.com/qgis/QGIS/commit/116089e6ec0bd9bfd15395206bd6e880561da859
>
> Am 21.09.2015 um 10:42 schrieb Julie Pierson:
>> Hi all,
>>
>> I tried using the dissolve tool from the QGIS geoprocessing tools and
>> all features get dissolved together, resulting in only one feature,
>> regardless of the dissolve field. I tried with several datasets. Do you
>> have the same problem or is it only me ? I've used this tool in the
>> past, and it worked ok.
>>
>> Thanks for your help !
>>
>> Julie.
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>>
>>
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