Coverage for pygeodesy/geodesicx/gxbases.py : 98%

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# -*- coding: utf-8 -*-
Copyright (C) U{Charles Karney<mailto:Charles@Karney.com>} (2008-2022) and licensed under the MIT/X11 License. For more information, see the U{GeographicLib<https://GeographicLib.SourceForge.io>} documentation. '''
# from pygeodesy.basics import isodd # from .karney # from pygeodesy.errors import _or # from .karney isodd, _hypot, _or, _sum2_ # from pygeodesy.props import Property # from .karney
# valid C{nC4}s and C{C4order}s, see _xnC4 below # underflow guard, we require _TINY * EPS > 0, _TINY + EPS == EPS # assert (_TINY * EPS) > 0 and (_TINY + EPS) == EPS
'''(INTERNAL) Base class for C{[_]Geodesic*Exact}. ''' # def toRepr(self, prec=6, sep=_COMMASPACE_, **unused): # PYCHOK signature # '''Return this C{GeodesicExact*} items string. # # @kwarg prec: The C{float} precision, number of decimal digits (0..9). # Trailing zero decimals are stripped for B{C{prec}} values # of 1 and above, but kept for negative B{C{prec}} values. # @kwarg sep: Separator to join (C{str}). # # @return: C{GeodesicExact*} (C{str}). # ''' # return Fmt.PAREN(self.named, self.toStr(prec=prec, sep=sep))
'''(INTERNAL) I{Karney}'s cosine series expansion using U{Clenshaw summation<https://WikiPedia.org/wiki/Clenshaw_algorithm>}. ''' # y1 = ar * y0 - y1 + c4s.pop() # y0 = ar * y1 - y0 + c4s.pop()
'''(INTERNAL) For C{_coeffs}. '''
'''(INTERNAL) Compute the sine and cosine of angle M{ang12 = atan2(sin2, cos2) - atan2(sin1, cos1)}.
Use C{-sin1} to get C{sin12} and C{cos12} of the sum M{ang12 = atan2(sin2, cos2) + atan2(sin1, cos1)}.
@kwarg sineg0: If C{True}, make negative C{sin12} zero (C{bool}).
@return: 2-Tuple C{(sin12, cos12)}. ''' s = _0_0 # max(s, _0_0) or NEG0?
'''(INTERNAL) Compute the C{sin1 * cos2} sine and its cosine.
@return: 2-Tuple C{(sin1 * cos2, hypot(sin1 * sin2, cos1)}. '''
'''(INTERNAL) Validate C{C4order}. ''' raise GeodesicError(n, nC4, txt=_not_(_or(*map(str, _nC4s))))
# **) MIT License # # Copyright (C) 2016-2022 -- mrJean1 at Gmail -- All Rights Reserved. # # Permission is hereby granted, free of charge, to any person obtaining a # copy of this software and associated documentation files (the "Software"), # to deal in the Software without restriction, including without limitation # the rights to use, copy, modify, merge, publish, distribute, sublicense, # and/or sell copies of the Software, and to permit persons to whom the # Software is furnished to do so, subject to the following conditions: # # The above copyright notice and this permission notice shall be included # in all copies or substantial portions of the Software. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS # OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL # THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR # OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, # ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR # OTHER DEALINGS IN THE SOFTWARE. |