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pyepsg

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A simple interface to https://epsg.io/

For example, we can request the details for the projected coordinate system identified by EPSG code 21781, aka. "Swiss CH1903 / LV03":

>>> projection = pyepsg.get(21781)
>>> projection
<ProjectedCRS: 21781, CH1903 / LV03>
>>> projection.domain_of_validity()
[5.97, 10.49, 45.83, 47.81]
>>> projection.cartesian_cs.axes
[<Axis: east / metre>, <Axis: north / metre>]

Projected and geodetic coordinate systems can also be converted to various other forms:

>>> print(projection.as_proj4()[:70] + '...')
+proj=somerc +lat_0=46.95240555555556 +lon_0=7.439583333333333 +k_0=1 ...
>>> print(projection.as_wkt()[:70] + '...')
PROJCS["CH1903 / LV03",GEOGCS["CH1903",DATUM["CH1903",SPHEROID["Bessel...