1 from django.contrib.gis.geos.geometry import GEOSGeometry, wkt_regex, hex_regex

     2 

     3 def fromfile(file_h):

     4     """

     5     Given a string file name, returns a GEOSGeometry. The file may contain WKB,

     6     WKT, or HEX.

     7     """

     8     # If given a file name, get a real handle.

     9     if isinstance(file_h, basestring): 

    10         file_h = open(file_h, 'rb')

    11 

    12     # Reading in the file's contents,

    13     buf = file_h.read()

    14 

    15     # If we get WKB need to wrap in buffer(), so run through regexes.

    16     if wkt_regex.match(buf) or hex_regex.match(buf):

    17         return GEOSGeometry(buf)

    18     else:

    19         return GEOSGeometry(buffer(buf))

    20 

    21 def fromstr(string, **kwargs):

    22     "Given a string value, returns a GEOSGeometry object."

    23     return GEOSGeometry(string, **kwargs)