Le portail francophone de la géomatique

from qgis.core import QgsProject, QgsVectorLayer, QgsVectorFileWriter, QgsCoordinateTransformContext

input_layer_name = "Ma_Couche"
output_directory = "Exemple\MonDossier"

mode_values = {
    0: "Couche_1",
    1: "Couche_2",
    2: "Couche_3",
    3: "Couche_4",
    4: "Couche_5",
    5: "Couche_6",
    6: "Couche_7",
    7: "Couche_8",
    8: "Couche_9"
}

input_layer = QgsProject.instance().mapLayersByName(input_layer_name)[0]
if not input_layer:
    print(f"La couche {input_layer_name} n'a pas été trouvée.")
    exit()

for mode_value, output_name in mode_values.items():
    query = f'"MODE_POSE" = {mode_value}'
    filtered_layer = QgsVectorLayer(input_layer.source(), input_layer_name, 'ogr')
    filtered_layer.setSubsetString(query)
    
    options = QgsVectorFileWriter.SaveVectorOptions()
    options.driverName = "ESRI Shapefile"
    output_path = f"{output_directory}/{output_name}.shp"
    
    success, message = QgsVectorFileWriter.writeAsVectorFormatV2(filtered_layer, output_path, QgsCoordinateTransformContext(), options)
    
    if success == QgsVectorFileWriter.NoError:
        print(f"Export de {output_name} réussi.")
    else:
        print(f"Erreur lors de l'export de {output_name} : {message}")

print("Export terminé.")