37 lines
1.0 KiB
Python
37 lines
1.0 KiB
Python
from astropy.coordinates import SkyCoord, ITRS, representation
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from astropy.time import Time
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import json
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import sys
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def convert_to_itrs(coord):
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c = SkyCoord(coord[0], coord[1], unit='degree', frame='icrs')
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c_itrs = c.transform_to(ITRS(obstime=Time.now()))
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rep = c_itrs.represent_as(representation.UnitSphericalRepresentation)
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return [rep.lat.deg, rep.lon.deg]
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def points_to_lines(points):
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lines = []
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for x in range(len(points) - 1):
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lines.append([points[x], points[x+1]])
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return lines
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with open(sys.argv[1]) as f:
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constellations = json.load(f)['features']
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output = []
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for const in constellations:
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for line in const['geometry']['coordinates']:
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transformed_line = []
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for point in line:
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transformed_line.append(convert_to_itrs(point))
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line_combined = points_to_lines(transformed_line)
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for l in line_combined: # noqa
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output.append(f'{l[0][0]} {l[0][1]} {l[1][0]} {l[1][1]} # {const["id"]}') # noqa
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print('\n'.join(output))
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