[Qgis-psc] outstanding issues

[Werner Macho]

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Hi!

I tested 2.8.* 2.10 2.12 and master .. And with the attached testcase
the correct result was only visible to the user with 2.8.* ..
Hope the testproject will get through the list ..

Tested the intersect tool in QGIS(ftools) and processing. Same result.
And I am pretty sure that this happens elsewhere too.
So as Luigi said - the users are currently getting wrong results (or
lets summarize it as "half the truth" :) ) presented.
Since 2.8.3 at least the intersect tool is affected and QGIS should
communicate that .. IMHO I would prefer a crash than getting results I
cannot rely on.

Hope my testfiles are useful.

regards
Werner

On 19/11/15 23:13, Luigi Pirelli wrote:
> Hi Nyall
> 
> as reported by Giovanni in the first thread mail and confirmed by 
> Werner during Hackmeeting... I don't know if they tested in master
> (I suppose they did)
> 
> Giovanni and Werner have a test data set to stress FTools in the
> new geometry engine context. I don't know if they added this test
> data set in a issue. Thre focus of the thread, imho is 1) what to
> do with the current distributed ftool (How awaring users of
> problem) 2) plan a solution to fix it
> 
> cheers Luigi Pirelli
> 
> **********************************************************************
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>
> 
* Boundless QGIS Support/Development: lpirelli AT boundlessgeo DOT com
> * LinkedIn: https://www.linkedin.com/in/luigipirelli *
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> https://github.com/luipir * Mastering QGIS: 
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>
> 
> 
> On 19 November 2015 at 23:04, Nyall Dawson <nyall.dawson at gmail.com>
> wrote:
>> On 20 November 2015 at 07:49, Tim Sutton <tim at kartoza.com>
>> wrote:
>> 
>>>> ftools OK              reshape/split tools ok
>>> QGIS 2.8.3          Y*                                   N QGIS
>>> 2.10           N                                    N QGIS 2.12
>>> N                                    N
>> 
>> I wasn't aware of this... can you summarise (or post a link to)
>> the issues in the reshape/split tools? There was a lot of issues
>> with this fixed in 2.12, and I'm not aware of any outstanding
>> (reported) ones.
>> 
>>> 
>>> 1) make small band-aid fixes to fix immediate issues 2) try to
>>> sponsor e.g. Nyall or Jürgen to completely rewrite in C++ and
>>> have python bindings added so that they can be used from
>>> processing 3) try to sponsor e.g. Victor to implement as
>>> processing algs and then just wrap them as actions in the
>>> vector menu
>>> 
>> 
>> I'd also like to point out that reimplementing these in c++
>> would allow them to be reused by other (non-processing) plugins
>> too. There's also likely a considerable speed boost possible from
>> this approach.
>> 
>> Nyall _______________________________________________ Qgis-psc
>> mailing list Qgis-psc at lists.osgeo.org 
>> http://lists.osgeo.org/mailman/listinfo/qgis-psc
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