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NIMROD loading #54

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Merged
esc24 merged 2 commits into from
Sep 12, 2012
Merged

NIMROD loading #54

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485bdd7
NIMROD loading
bblay Aug 15, 2012
b7a4e09
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bblay Sep 12, 2012
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14 changes: 12 additions & 2 deletions lib/iris/coord_systems.py
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Original file line number Diff line number Diff line change
Expand Up @@ -276,8 +276,8 @@ def __init__(self, latitude_of_projection_origin, longitude_of_central_meridian,

Example::

airy1830 = GeogCS(6377563.396, 6356256.910)
osgb = TransverseMercator(49, -2, 40000, -10000, 0.9996012717, ellipsoid=airy1830)
airy1830 = GeogCS(6377563.396, 6356256.909)
osgb = TransverseMercator(49, -2, 400000, -100000, 0.9996012717, ellipsoid=airy1830)

"""
self.latitude_of_projection_origin = float(latitude_of_projection_origin)
Expand Down Expand Up @@ -305,3 +305,13 @@ def __repr__(self):
(self.latitude_of_projection_origin, self.longitude_of_central_meridian,
self.false_easting, self.false_northing,
self.scale_factor_at_central_meridian, self.ellipsoid)


class OSGB(TransverseMercator):
"""A Specific transverse mercator projection on a specific ellipsoid."""
def __init__(self):
TransverseMercator.__init__(self, 49, -2, -400000, 100000, 0.9996012717,
GeogCS(6377563.396, 6356256.909))

def _as_cartopy_projection(self):
return cartopy.crs.OSGB()
8 changes: 8 additions & 0 deletions lib/iris/fileformats/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,7 @@
import ff
import grib
import netcdf
import nimrod


__all__ = ['FORMAT_AGENT']
Expand Down Expand Up @@ -99,3 +100,10 @@ def _pp_little_endian(filename, *args, **kwargs):
priority=4,
)
FORMAT_AGENT.add_spec(_FF_5p2_spec)

_NIMROD_spec = fp.FormatSpecification('NIMROD',
fp.MAGIC_NUMBER_32_BIT, 0x00000200,
nimrod.load_cubes,
priority=5,
)
FORMAT_AGENT.add_spec(_NIMROD_spec)
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