コード例 #1
0
    def filter(self, *args, **kwds):
        """Returns an iterator over records, but filtered by a test for
        spatial intersection with the provided ``bbox``, a (minx, miny,
        maxx, maxy) tuple or a geometry ``mask``.

        Positional arguments ``stop`` or ``start, stop[, step]`` allows
        iteration to skip over items or stop at a specific item.
        """
        if self.closed:
            raise ValueError("I/O operation on closed collection")
        elif self.mode != 'r':
            raise IOError("collection not open for reading")
        if args:
            s = slice(*args)
            start = s.start
            stop = s.stop
            step = s.step
        else:
            start = stop = step = None
        bbox = kwds.get('bbox')
        mask = kwds.get('mask')
        if bbox and mask:
            raise ValueError("mask and bbox can not be set together")
        self.iterator = Iterator(self, start, stop, step, bbox, mask)
        return self.iterator
コード例 #2
0
ファイル: collection.py プロジェクト: strongdiamond/Fiona
    def filter(self, *args, **kwds):
        """Returns an iterator over records, but filtered by a test for
        spatial intersection with the provided ``bbox``, a (minx, miny,
        maxx, maxy) tuple or a geometry ``mask``. An attribute filter can
        be set using an SQL ``where`` clause, which uses the `OGR SQL dialect
        <https://gdal.org/user/ogr_sql_dialect.html#where>`__.

        Positional arguments ``stop`` or ``start, stop[, step]`` allows
        iteration to skip over items or stop at a specific item.
        """
        if self.closed:
            raise ValueError("I/O operation on closed collection")
        elif self.mode != 'r':
            raise IOError("collection not open for reading")
        if args:
            s = slice(*args)
            start = s.start
            stop = s.stop
            step = s.step
        else:
            start = stop = step = None
        bbox = kwds.get('bbox')
        mask = kwds.get('mask')
        if bbox and mask:
            raise ValueError("mask and bbox can not be set together")
        where = kwds.get('where')
        self.iterator = Iterator(self, start, stop, step, bbox, mask, where)
        return self.iterator
コード例 #3
0
ファイル: collection.py プロジェクト: ingenieroariel/Fiona
 def filter(self, bbox=None):
     """Returns an iterator over GeoJSON-like mappings of features, but 
     filtered by a test for spatial intersection with the provided ``bbox``,
     a (minx, miny, maxx, maxy) tuple."""
     if self.mode != 'r':
         raise IOError("Collection is not open for reading")
     return Iterator(self, bbox)
コード例 #4
0
 def filter(self, bbox=None):
     """Returns an iterator over records, but filtered by a test for
     spatial intersection with the provided ``bbox``, a (minx, miny,
     maxx, maxy) tuple."""
     if self.closed:
         raise ValueError("I/O operation on closed collection")
     elif self.mode != 'r':
         raise IOError("collection not open for reading")
     self.iterator = Iterator(self, bbox)
     return self.iterator
コード例 #5
0
ファイル: collection.py プロジェクト: lordi/Fiona
 def filter(self, bbox=None, query=None):
     """Returns an iterator over records, but filtered either by a
     test for spatial intersection with the provided ``bbox``, a
     (minx, miny, maxx, maxy) tuple and/or by an attribute filter,
     provided by ``query`` (e.g. "population > 1000000")."""
     if self.closed:
         raise ValueError("Collection is not open for reading")
     elif self.mode != 'r':
         raise IOError("Collection is not open for reading")
     if self.iterator is None:
         self.iterator = Iterator(self, bbox, query)
     return self.iterator
コード例 #6
0
ファイル: collection.py プロジェクト: ingenieroariel/Fiona
 def __iter__(self):
     """Returns an iterator over GeoJSON-like mappings of features"""
     if self.mode != 'r':
         raise IOError("Collection is not open for reading")
     return Iterator(self)