pingswept / pysolar
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Description: Pysolar is a collection of Python libraries for simulating the irradiation of any point on earth by the sun. It includes code for extremely precise ephemeris calculations.
Homepage: http://pysolar.org
Clone URL: git://github.com/pingswept/pysolar.git
pysolar / poly.py
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#!/usr/bin/python
 
#    Library for calculating location of the sun
 
#    Copyright 2008 Brandon Stafford
#
#    This file is part of Pysolar.
#
#    Pysolar is free software; you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation; either version 3 of the License, or
#    (at your option) any later version.
#
#    Pysolar is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License along
#    with Pysolar. If not, see <http://www.gnu.org/licenses/>.
 
coeff_list = [
		('ArgumentOfLatitudeOfMoon', (93.27191, 483202.017538, -0.0036825, 327270.0)),
		('LongitudeOfAscendingNode', (125.04452, -1934.136261, 0.0020708, 450000.0)),
		('MeanElongationOfMoon', (297.85036, 445267.111480, -0.0019142, 189474.0)),
		('MeanAnomalyOfMoon', (134.96298, 477198.867398, 0.0086972, 56250.0)),
		('MeanAnomalyOfSun', (357.52772, 35999.050340, -0.0001603, -300000.0))
	]
 
def buildPolyFit((a, b, c, d)):
	return (lambda x: a + b * x + c * x ** 2 + (x ** 3) / d)
 
def buildPolyDict():
	return dict([(name, buildPolyFit(coeffs)) for (name, coeffs) in coeff_list])