PyQGIS : Displaying temporal raster layer in the temporal controller after having created temporalproperties

Question

I'm developping a QGIS plugin to convert data from hdf5 file. After having converted the data I want into raster, I load it into the interface with addRasterLayer. Then I do :

temporal_properties = layer.temporalProperties()
        temporal_properties.setMode(mode)
        # temporal_properties.setIsActive(True)
        
        start = date
        end = date
        temporal_properties.setFixedTemporalRange(QgsDateTimeRange(start - timedelta(minutes=self.pas_minutes/2), end + timedelta(minutes=self.pas_minutes/2)))
        temporal_properties.setIsActive(True)

It works well, but when I activate manually the temporal controller to show raster at the good time, it does not display anything. I have to go to the properties windows of my layer, click on apply to make it display. For one layer seems not too boring, but I will have many.

I didn't find any usefull info, I wonder if I forget something or if it's a QGIS bug.

(It's not working from QGIS 3.16, was working on 3.10).

If anyone could help... Thanks

Trying to display automatically a raster with temporal in the controller in QGIS. I've tried refresh canvas functions, updateTemporalRange for the QGIS controller.

Answer 1

Ok after many tries I managed to figure out what was going on. My dates (start & end) we of datetime type. What's needed is QDateTime. So I transformed them into the good type.

Still had de the issue. It came that my QDateTime were not in UTC. I added this tag en then went ok. That gave something like :

start = date
    end = date
    
    print("date layer",date)
    
    start = start - timedelta(minutes=pas/2)
    end = end + timedelta(minutes=pas/2)
      
    # Définir la date de début et fin
    date_debut = QDateTime()
    date_debut.setTime(QTime(int(start.hour),int(start.minute),int(start.second)))
    date_debut.setDate(QDate(int(start.year),int(start.month),int(start.day)))
    date_debut.setTimeSpec(Qt.UTC)
    
    #print("date_debut",date_debut,type(date_debut))
    date_fin = QDateTime()              
    date_fin.setDate(QDate(int(end.year),int(end.month),int(end.day)))
    date_fin.setTime(QTime(int(end.hour),int(end.minute),int(end.second)))
    date_fin.setTimeSpec(Qt.UTC)

    mon_range = QgsDateTimeRange(date_debut, date_fin,includeEnd = True)
    layer.temporalProperties().setIsActive(True)
    layer.temporalProperties().setFixedTemporalRange(mon_range)