[QGIS-Developer] Processing Split with lines algorithm broken

[G. Allegri]

I also agree to step back to single-part output.

giovanni

2017-11-15 11:13 GMT+01:00 Alexandre Neto <senhor.neto at gmail.com>:

> +1
>
> Nathan Woodrow <madmanwoo at gmail.com> escreveu no dia quarta, 15/11/2017
> às 05:10:
>
>> IMO go with the principle of least astonishment.  I think the expected
>> outcome is single part features as it's not clear that you need to run
>> another step.
>>
>> - Nathan
>>
>> On Wed, Nov 15, 2017 at 2:48 PM, Nyall Dawson <nyall.dawson at gmail.com>
>> wrote:
>>
>>> On 15 November 2017 at 00:33, matteo <matteo.ghetta at gmail.com> wrote:
>>> > Hi devs,
>>> >
>>> > the algorithm Split with lines seems not working. No output error but
>>> > both lines or polygons in output are not split. The same algorithm with
>>> > the same data works in QGIS 2.18
>>>
>>> I suspect it's working OK, but you're hitting a change in 3.0 where
>>> the output of this algorithm is a multi-line, with the individual
>>> split parts still forming a single feature. You need to run multiparts
>>> to singleparts on it afterward.
>>>
>>> ....However....
>>>
>>> This was a change I requested in
>>> https://github.com/qgis/QGIS/pull/3798, since it seemed like a logical
>>> move. Having used this algorithm extensively since (and also been
>>> confused in thinking that the algorithm was broken!) I'm not convinced
>>> this was the right move anymore, and think that we should probably
>>> always output single-part features from this algorithm.
>>>
>>> What's everyone's thoughts?
>>>
>>> Nyall
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>>
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> Alexandre Neto
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