mainplugin.py 文件源码

def openOSM(self, filename=None):
        """Converts an OSM file to GeoPackage, loads and styles it."""
        if not filename:
            filename = QFileDialog.getOpenFileName(
                parent=None,
                caption=self.tr(u'Select OpenStreetMap file'),
                filter=self.tr(u'OSM or GeoPackage File') + u' (*.osm *.pbf *.gpkg)')
        if not filename or not os.path.isfile(filename):
            return
        filename = os.path.abspath(filename)
        gpkgFile = os.path.splitext(filename)[0] + '.gpkg'
        if filename.endswith('.gpkg'):
            self.openGeoPackage(filename)
            return

        if os.path.isfile(gpkgFile):
            os.remove(gpkgFile)
        if isWindows():
            cmd = ['cmd.exe', '/C', 'ogr2ogr.exe']
        else:
            cmd = ['ogr2ogr']

        cmd.extend(['--config', 'OSM_USE_CUSTOM_INDEXING', 'NO'])
        iniFile = os.path.join(self.path, 'res', 'osmconf.ini')
        cmd.extend(['--config', 'OSM_CONFIG_FILE', iniFile])
        cmd.extend(['-t_srs', 'EPSG:3857'])
        cmd.extend(['-overwrite'])
        cmd.extend(['-f', 'GPKG', gpkgFile, filename])
        try:
            GdalUtils.runGdal(cmd, ProgressMock())
        except IOError as e:
            self.iface.messageBar().pushCritical(
                self.tr(u'Open OSM Data'), self.tr(u'Error running ogr2ogr: {}').format(e))
            return
        if 'FAILURE' in GdalUtils.consoleOutput:
            self.iface.messageBar().pushCritical(
                self.tr(u'Open OSM Data'), self.tr(u'Error converting OSM to GeoPackage.'))
            return
        self.openGeoPackage(gpkgFile)