[QGIS-Developer] Fw: [ccrook/QGIS-Contour-Plugin] RuntimeError : wrapped C/C++ object of type ContourGeneratorAlgorithm has been deleted (Issue #46)

[Chris Crook]

Hi Developers

The contour plugin I have been maintaining seems to occasionally lose the C++ object that its processing algorithm is using.
In particular this happens when changing settings.

Before I get lost trying to track this through the Python/SWIG bindings and comparing with other processing algorithms I am wondering if this is familiar or you can offer ideas about how to track it down.  It seems either my python object is persisting too long or or the underlying C++ object not long enough, but I'm very unfamiliar with SWIG so any suggestions would be very welcome 🙂

Thanks
Chris
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Sent: 04 December 2022 01:11
To: ccrook/QGIS-Contour-Plugin <QGIS-Contour-Plugin at noreply.github.com>
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Subject: [ccrook/QGIS-Contour-Plugin] RuntimeError : wrapped C/C++ object of type ContourGeneratorAlgorithm has been deleted (Issue #46)


Every time when I change the background colour in QGIS the following error appears

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QGIS 3.28 Firenze

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