/usr/lib/python2.7/dist-packages/shapely/wkb.py is in python-shapely 1.6.4-1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 | """Load/dump geometries using the well-known binary (WKB) format
"""
from shapely import geos
# Pickle-like convenience functions
def loads(data, hex=False):
"""Load a geometry from a WKB byte string, or hex-encoded string if
``hex=True``.
"""
reader = geos.WKBReader(geos.lgeos)
if hex:
return reader.read_hex(data)
else:
return reader.read(data)
def load(fp, hex=False):
"""Load a geometry from an open file."""
data = fp.read()
return loads(data, hex=hex)
def dumps(ob, hex=False, **kw):
"""Dump a WKB representation of a geometry to a byte string, or a
hex-encoded string if ``hex=True``.
See available keyword output settings in ``shapely.geos.WKBWriter``."""
writer = geos.WKBWriter(geos.lgeos, **kw)
if hex:
return writer.write_hex(ob)
else:
return writer.write(ob)
def dump(ob, fp, hex=False, **kw):
"""Dump a geometry to an open file."""
fp.write(dumps(ob, hex=hex, **kw))
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