コード例 #1
0
ファイル: osm_downloader.py プロジェクト: lucernae/inasafe
def fetch_zip(url, output_path, feature_type, progress_dialog=None):
    """Download zip containing shp file and write to output_path.

    .. versionadded:: 3.2

    :param url: URL of the zip bundle.
    :type url: str

    :param output_path: Path of output file,
    :type output_path: str

    :param feature_type: What kind of features should be downloaded.
        Currently 'buildings', 'building-points' or 'roads' are supported.
    :type feature_type: str

    :param progress_dialog: A progress dialog.
    :type progress_dialog: QProgressDialog

    :raises: ImportDialogError - when network error occurred
    """
    LOGGER.debug('Downloading file from URL: %s' % url)
    LOGGER.debug('Downloading to: %s' % output_path)

    if progress_dialog:
        progress_dialog.show()

        # Infinite progress bar when the server is fetching data.
        # The progress bar will be updated with the file size later.
        progress_dialog.setMaximum(0)
        progress_dialog.setMinimum(0)
        progress_dialog.setValue(0)

        # Get a pretty label from feature_type, but not translatable
        label_feature_type = feature_type.replace('-', ' ')

        label_text = tr('Fetching %s' % label_feature_type)
        progress_dialog.setLabelText(label_text)

    # Set Proxy in web page
    proxy = get_proxy()
    network_manager = QNetworkAccessManager()
    if proxy is not None:
        network_manager.setProxy(proxy)

    # Download Process
    downloader = FileDownloader(network_manager, url, output_path,
                                progress_dialog)
    try:
        result = downloader.download()
    except IOError as ex:
        raise IOError(ex)

    if result[0] is not True:
        _, error_message = result

        if result[0] == QNetworkReply.OperationCanceledError:
            raise CanceledImportDialogError(error_message)
        else:
            raise DownloadError(error_message)
コード例 #2
0
ファイル: osm_downloader.py プロジェクト: Mloweedgar/inasafe
def fetch_zip(url, output_path, feature_type, progress_dialog=None):
    """Download zip containing shp file and write to output_path.

    .. versionadded:: 3.2

    :param url: URL of the zip bundle.
    :type url: str

    :param output_path: Path of output file,
    :type output_path: str

    :param feature_type: What kind of features should be downloaded.
        Currently 'buildings', 'building-points' or 'roads' are supported.
    :type feature_type: str

    :param progress_dialog: A progress dialog.
    :type progress_dialog: QProgressDialog

    :raises: ImportDialogError - when network error occurred
    """
    LOGGER.debug('Downloading file from URL: %s' % url)
    LOGGER.debug('Downloading to: %s' % output_path)

    if progress_dialog:
        progress_dialog.show()

        # Infinite progress bar when the server is fetching data.
        # The progress bar will be updated with the file size later.
        progress_dialog.setMaximum(0)
        progress_dialog.setMinimum(0)
        progress_dialog.setValue(0)

        # Get a pretty label from feature_type, but not translatable
        label_feature_type = feature_type.replace('-', ' ')

        label_text = tr('Fetching %s' % label_feature_type)
        progress_dialog.setLabelText(label_text)

    # Set Proxy in web page
    proxy = get_proxy()
    network_manager = QNetworkAccessManager()
    if proxy is not None:
        network_manager.setProxy(proxy)

    # Download Process
    downloader = FileDownloader(
        network_manager, url, output_path, progress_dialog)
    try:
        result = downloader.download()
    except IOError as ex:
        raise IOError(ex)

    if result[0] is not True:
        _, error_message = result

        if result[0] == QNetworkReply.OperationCanceledError:
            raise CanceledImportDialogError(error_message)
        else:
            raise DownloadError(error_message)
コード例 #3
0
    def __init__(self, parent=None, iface=None):
        """Constructor for import dialog.

        :param parent: Optional widget to use as parent
        :type parent: QWidget

        :param iface: An instance of QGisInterface
        :type iface: QGisInterface
        """
        QDialog.__init__(self, parent)
        self.parent = parent
        self.setupUi(self)

        self.setWindowTitle(self.tr('InaSAFE OpenStreetMap Downloader'))

        self.iface = iface
        self.buildings_url = 'http://osm.linfiniti.com/buildings-shp'
        self.building_points_url = \
            'http://osm.linfiniti.com/building-points-shp'
        self.roads_url = 'http://osm.linfiniti.com/roads-shp'

        self.help_context = 'openstreetmap_downloader'
        # creating progress dialog for download
        self.progress_dialog = QProgressDialog(self)
        self.progress_dialog.setAutoClose(False)
        title = self.tr('InaSAFE OpenStreetMap Downloader')
        self.progress_dialog.setWindowTitle(title)
        # Set up context help
        help_button = self.button_box.button(QtGui.QDialogButtonBox.Help)
        help_button.clicked.connect(self.show_help)

        self.show_info()

        # set up the validator for the file name prefix
        expression = QRegExp('^[A-Za-z0-9-_]*$')
        validator = QRegExpValidator(expression, self.filename_prefix)
        self.filename_prefix.setValidator(validator)

        # Set Proxy in webpage
        proxy = get_proxy()
        self.network_manager = QNetworkAccessManager(self)
        if proxy is not None:
            self.network_manager.setProxy(proxy)
        self.restore_state()

        # Setup the rectangle map tool
        self.canvas = iface.mapCanvas()
        self.rectangle_map_tool = \
            RectangleMapTool(self.canvas)
        self.rectangle_map_tool.rectangle_created.connect(
            self.update_extent_from_rectangle)
        self.button_extent_rectangle.clicked.connect(
            self.drag_rectangle_on_map_canvas)

        # Setup pan tool
        self.pan_tool = QgsMapToolPan(self.canvas)
        self.canvas.setMapTool(self.pan_tool)
        self.update_extent_from_map_canvas()
コード例 #4
0
    def __init__(self, parent=None, iface=None):
        """Constructor for import dialog.

        :param parent: Optional widget to use as parent
        :type parent: QWidget

        :param iface: An instance of QGisInterface
        :type iface: QGisInterface
        """
        QDialog.__init__(self, parent)
        self.parent = parent
        self.setupUi(self)

        self.setWindowTitle(self.tr('InaSAFE OpenStreetMap Downloader'))

        self.iface = iface
        self.buildings_url = 'http://osm.linfiniti.com/buildings-shp'
        self.building_points_url = \
            'http://osm.linfiniti.com/building-points-shp'
        self.roads_url = 'http://osm.linfiniti.com/roads-shp'

        self.help_context = 'openstreetmap_downloader'
        # creating progress dialog for download
        self.progress_dialog = QProgressDialog(self)
        self.progress_dialog.setAutoClose(False)
        title = self.tr('InaSAFE OpenStreetMap Downloader')
        self.progress_dialog.setWindowTitle(title)
        # Set up context help
        help_button = self.button_box.button(QtGui.QDialogButtonBox.Help)
        help_button.clicked.connect(self.show_help)

        self.show_info()

        # set up the validator for the file name prefix
        expression = QRegExp('^[A-Za-z0-9-_]*$')
        validator = QRegExpValidator(expression, self.filename_prefix)
        self.filename_prefix.setValidator(validator)

        # Set Proxy in webpage
        proxy = get_proxy()
        self.network_manager = QNetworkAccessManager(self)
        if proxy is not None:
            self.network_manager.setProxy(proxy)
        self.restore_state()

        # Setup the rectangle map tool
        self.canvas = iface.mapCanvas()
        self.rectangle_map_tool = \
            RectangleMapTool(self.canvas)
        self.rectangle_map_tool.rectangle_created.connect(
            self.update_extent_from_rectangle)
        self.button_extent_rectangle.clicked.connect(
            self.drag_rectangle_on_map_canvas)

        # Setup pan tool
        self.pan_tool = QgsMapToolPan(self.canvas)
        self.canvas.setMapTool(self.pan_tool)
        self.update_extent_from_map_canvas()