Hello,
in my plugin I set up a rasterlayer like this:
QgsRasterLayer* lyr = new QgsRasterLayer(src->Dir + "/" + src->File,
firstTBLayer->Title, QStringLiteral("gdal"));
if (lyr->isValid())
QgsProject::instance()->addMapLayers(QList<QgsMapLayer *>() <<
lyr, false);
The layer is valid and in a next step I ask for the renderer ... qgis
crashes because of heap corruption.
So I create a new renderer like this:
QgsRasterRenderer* rend = new QgsMultiBandColorRenderer
(rLyr->dataProvider(), redBand, greenBand, blueBand);
rLyr->setRenderer(rend);
In QGIS all seems to be OK but while closing QGIS it crashes again.
If I ask for the renderer
qDebug() << rLyr->renderer();
QGIS crashes with following messages:
Ausnahme ausgelöst bei 0x00007ffd5369c3f0 in qgis-bin.exe: 0xC0000005:
Zugriffsverletzung beim Lesen an Position 0x0000000000000030.
Stack Trace:
QgsRasterPipe::interface qgsrasterpipe.cpp:225
QgsRasterPipe::renderer qgsrasterpipe.cpp:239
QGISFunc::ReadRasterRuleSLD qgisfunc.cpp:1779
What is changing in my plugin while updating from qgis 2.18 to 3.10 ? The
layer is added to legend after manipulating the renderer. In old plugin I
manipulate renderer after adding it to legend. But this seems to be not
the problem.
Anyone who can help, please?
Freundliche Grüße aus Leipzig
Susann Schmidt
Softwareentwicklung
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