[Qgis-developer] Segfault when using QgsComposition::exportAsPDF with QGIS 2.4 and python

[kimaidou]

Hi all,

Can anyone confirms this bug happened for your either ? If so, I will
create an issue in the hub. I personnaly need this feature to export some
data as PDF from a plugin.

Thanks in advance
Michael


2014-07-07 19:46 GMT+02:00 kimaidou <kimaidou at gmail.com>:

> Last test : No segfault if I save an image with the method2 method :
>
> https://gist.github.com/mdouchin/6d7408980f737959075b
>
> It seems my segfault is related to the use of the PDF printer in my Ubuntu
> box.
>
> Any help appreciated.
>
> Regards,
> Michael
>
>
> 2014-07-07 19:38 GMT+02:00 kimaidou <kimaidou at gmail.com>:
>
> I just tested the method shown in the Python Cookbook [1] instead of the
>> exportAsPDF method, which also segfault my QGIS 2.4 (ubuntu) when the
>> render method is called :
>>
>>
>> printer = QPrinter()
>> printer.setOutputFormat(QPrinter.PdfFormat)
>> printer.setOutputFileName("/tmp/out.pdf")
>> printer.setPaperSize(QSizeF(c.paperWidth(), c.paperHeight()),
>> QPrinter.Millimeter)
>> printer.setFullPage(True)
>> printer.setColorMode(QPrinter.Color)
>> printer.setResolution(c.printResolution())
>> pdfPainter = QPainter(printer)
>> paperRectMM = printer.pageRect(QPrinter.Millimeter)
>> paperRectPixel = printer.pageRect(QPrinter.DevicePixel)
>>
>> c.render(pdfPainter, paperRectPixel, paperRectMM)
>>
>>
>>
>> [1]
>> http://docs.qgis.org/testing/en/docs/pyqgis_developer_cookbook/composer.html#output-to-pdf
>>
>>
>>
>>
>> 2014-07-07 19:20 GMT+02:00 kimaidou <kimaidou at gmail.com>:
>>
>> Hi all,
>>>
>>> I would like to share an issue I am having while trying to simply export
>>> a composition as PDF.
>>>
>>> Under QGIS 2.2, I had no problem, but QGIS 2.4 Segfault with the simple
>>> steps :
>>>
>>> c = QgsComposition( QgsMapSettings() )
>>> c.setPaperSize( 290, 210 )
>>> c.setPrintResolution( 100 )
>>> c.setSnapGridOffsetX( 3.5 )
>>> c.setSnapGridOffsetY( 0 )
>>> c.setSnapGridResolution( 2.5 )
>>> c.setNumPages( 1 )
>>>
>>> cl = QgsComposerLabel( c )
>>> cl.setItemPosition( 0, 10, 100, 100 )
>>> content = 'test'
>>> cl.setText( content )
>>> cl.setFrameEnabled( False )
>>> c.addItem( cl )
>>>
>>> c.exportAsPDF( '/tmp/test.pdf' )
>>>
>>> NB: I just discoverd that QgsComposition( QgsMapRenderer() ) is
>>> deprecated since QGIS 2.4 as explained here:
>>> http://www2.qgis.org/api/deprecated.html
>>> But using it or the new instanciation does not change the problem.
>>>
>>> Has anyone any hint on this issue ?
>>>
>>> Thanks in advance
>>> Michael
>>>
>>>
>>
>
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