mainplugin.py 文件源码

def openGeoPackage(self, filename=None):
        if not filename:
            filename = QFileDialog.getOpenFileName(
                parent=None,
                caption=self.tr(u'Select GeoPackage file'),
                filter=self.tr(u'GeoPackage File') + u' (*.gpkg *.geopackage)')
        if not filename or not os.path.isfile(filename):
            return
        filename = os.path.abspath(filename)

        styleFile = os.path.join(self.path, 'res', 'wp_style.yaml')
        with open(styleFile, 'r') as f:
            style = yaml.load(f)
        applyStyle(filename, style)
        for layer in self.iface.legendInterface().layers():
            self.iface.legendInterface().refreshLayerSymbology(layer)
        self.createPie()