
Learning Geospatial Analysis with Python
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When you start working with multiple data sets you'll inevitably end up with data in different coordinate systems and projections. You can convert back and forth between UTM and latitude/longitude using a pure Python module called utm
. You can install it using easy_install
or pip
from PyPI:
https://pypi.python.org/pypi/utm
The utm
module is straightforward to use. To convert from UTM to latitude and longitude:
>>> import utm >>> y = 479747.0453210057 >>> x = 5377685.825323031 >>> zone = 32 >>> band = 'U' >>> utm.to_latlon(y,x,zone,band) (48.55199390882121, 8.725555729071763)
The UTM zones are numbered horizontally. However, vertically, the bands of latitude are ordered by English alphabets with a few exceptions. The letters A, B, Y, and Z cover the poles. The letters I and O are omitted because they look too much like 1 and 0. Letters N through X are in the northern hemisphere while C through M are in the southern...
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