[Qgis-developer] add rasterlayer to qgsmapcanvas

[Rouzaud Denis]

self.canvasRaster.refresh() at the end ?

On 05 Jun 2014, at 18:27, Felix Schmidt <felix.schmidt at uni-weimar.de> wrote:

> 
> 
> 
> 
> Hello everyone,
> I try to load on signal, a rasterlayer to qgsmapcanvas. I try it like in
> the pycookbook:
> 
> @QtCore.pyqtSlot()
>     def loadRasterImage(self):
>     print "slot works"
>         fileName = QFileDialog.getOpenFileName(None, "historical map",
> ".", "Image Files (*.png *.jpg *.bmp *.tiff)")
>         fileInfo = QFileInfo(fileName)
>         baseName = fileInfo.baseName()
>         rlayer = QgsRasterLayer(fileName, baseName)
>         if not rlayer.isValid():
>             print "Layer failed to load!"
>         QgsMapLayerRegistry.instance().addMapLayer(rlayer)
>     print rlayer.extent().yMinimum()
>     self.canvasRaster.setExtent(rlayer.extent())
>     self.canvasRaster.setLayerSet( [ QgsMapCanvasLayer(rlayer) ] )
> 
> self.canvasRaster is defined in the gui . I search for 8h but I dont
> find a solutionen, because there are no errors.
> 
> It load the rasterlayer to the main program of qgis, but not in my
> qgsmapcanvas. it is still white.
> 
> please help me.
> 
> Felix
> 
> 
> 
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