[Qgis-developer] QGis Dufour crashes when using QgsMarkerLineSymbolLayerV2.setSubSymbol()

[alain]

Hi Matthias,

keeping a reference to the symbol does fix the problem, thank you very much!

I'll file a report very soon, it looks like I have some trouble with my 
osgeo account.

Alain

Le 24/01/2014 10:19, Matthias Kuhn a écrit :
> Hi Alain,
>
> Please do file a report.
>
> Before you do: Can you try to keep reference to the symbol you are 
> adding ( self.mySymbol = createSymbol() | 
> xxx.setSubSymbol(self.mySymbol) ) and see if that "fixes" your 
> problem. Please file a bug even if it does "fix" it so we can still 
> consider passing ownership to C++ in that bugreport.
>
> Best
> Matthias
>
> On Thu 23 Jan 2014 07:15:17 PM CET, alain wrote:
>> Hello,
>>
>> QgsSVGFillSymbolLayer.setSubSymbol() (to put the outline symbol of a
>> polygon) also makes crash QGis.
>>
>> I tested this with linux and windows 7.
>>
>> I've found a workaround with QgsMarkerLineSymbolLayer.createFromSld().
>> This does work from within a python plugin.
>>
>> QgsMarkerLineSymbolLayer.createFromSld() call setSubSymbol method from
>> the C++ part. So maybe the problem comes from the python bindings, but
>> I don't know sip.
>>
>> Shall I report this as a bug?
>>
>> Alain
>>
>>
>> Le 20/01/2014 22:31, alain a écrit :
>>> Hello,
>>>
>>> I'm working on a python plugin to render S57 nautical charts using
>>> the ogr provider and QGis symbology. For now, I'm just testing how to
>>> use Symbology, as I'm not familiar with it, so I think I do something
>>> wrong, but can't find examples on Google.
>>>
>>> I need to compose symbols for lines, using Svg files. This seems to
>>> be done using one or more QgsSvgMarkerSymbolLayerV2 in a
>>> QgsMarkerSymbol wrapped in a QgsMarkerLineSymbolLayerV2 using
>>> setSubSymbol(...) method. Following this idea, I get QGis crashes.
>>>
>>> I post some code at
>>> http://gis.stackexchange.com/questions/83517/qgis-dufour-crashes-when-using-qgsmarkerlinesymbollayer-from-a-python-plugin 
>>>
>>>
>>>
>>> When I comment the line calling setSubSymbol(), the layer is rendered
>>> correctly with a default symbol.
>>>
>>> Thanks for help.
>>>
>>> Alain
>>> _______________________________________________
>>> Qgis-developer mailing list
>>> Qgis-developer at lists.osgeo.org
>>> http://lists.osgeo.org/mailman/listinfo/qgis-developer
>>>
>>
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>
>