# Coverage for pygeodesy/units.py : 94%

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-*- coding: utf-8 -*- u'''Sub-classes C{Float}, C{Int} and C{Str} from basic C{float}, C{int} respectively C{str} to named units as L{Degrees}, L{Feet}, L{Meter}, L{Radians}, etc. @newfield example: Example, Examples ''' from pygeodesy.basics import isstr, issubclassof from pygeodesy.dms import F__F, F__F_, parseDMS, parseRad, \ S_NUL, S_SEP, _toDMS from pygeodesy.errors import _IsnotError, RangeError, TRFError, \ UnitError, _xkwds_popitem from pygeodesy.interns import EPS, EPS1, NN, PI, PI_2, PI2, _band_, \ _bearing_, _degrees_, _degrees2_, \ _distance_, _E_, _easting_, _epoch_, \ _EW_, _feet_, _height_, _invalid_, _N_, \ _lam_, _lat_, _LatLon_, _lon_, _meter_, \ _meter2_, _northing_, _NS_, _NSEW_, \ _number_, _PERCENT_, _phi_, _precision_, \ _radians_, _radians2_, _radius_, _S_, \ _scalar_, _SPACE_, _UNDER_, _units_, \ _W_, _zone_, _0_0, _0_001 from pygeodesy.interns import _std_ # PYCHOK used! from pygeodesy.lazily import _ALL_DOCS, _ALL_LAZY, _env # PYCHOK used! from pygeodesy.named import modulename, _Named from pygeodesy.props import Property_RO, property_doc_ from pygeodesy.streprs import Fmt, fstr from math import radians __all__ = _ALL_LAZY.units __version__ = '21.02.22' class _NamedUnit(_Named): '''(INTERNAL) Base class for C{units}. ''' _std_repr = True # set below _units = None def _toRepr(self, value): '''(INTERNAL) Representation "<name> (<value>)" or "<classname>(<value>)". ''' t = NN(self.name, _SPACE_) if self.name else self.classname return Fmt.PAREN(t, value) @property_doc_(' standard C{repr} or named C{toRepr} representation.') def std_repr(self): '''Get the representation (C{bool}, C{True} means standard). ''' return self._std_repr @std_repr.setter # PYCHOK setter! def std_repr(self, std): '''Set the representation (C{True} or C{"std"} for standard). ''' self._std_repr = std in (True, _std_) @property_doc_(' units name.') def units(self): '''Get the units name (C{str}). ''' if self._units is None: self._units = self.classname return self._units @units.setter # PYCHOK setter! def units(self, units): '''Set the units name for this instance (C{str} or C{None} for default). ''' self._units = None if units is None else str(units) class Float(float, _NamedUnit): '''Named C{float}. ''' # _std_repr = True # set below def __new__(cls, arg=None, name=NN, Error=UnitError, **name_arg): '''New named C{float} instance. @kwarg arg: The value (any C{type} convertable to C{float}). @kwarg name: Optional instance name (C{str}). @kwarg Error: Optional error to raise, overriding the default L{UnitError}. @kwarg name_arg: Optional C{name=arg} keyword argument, inlieu of B{C{name}} and B{C{arg}}. @returns: A C{Float} instance. @raise Error: Invalid B{C{arg}}. ''' if name_arg: name, arg = _xkwds_popitem(name_arg) try: self = float.__new__(cls, arg) if name: _NamedUnit.name.fset(self, name) # see _Named.name return self except (TypeError, ValueError) as x: # XXX not ... as x: raise _Error(cls, arg, name=name, Error=Error, txt=str(x)) def __repr__(self): # to avoid MRO(float) '''Return a representation of this C{Float}. @see: Method C{Float.toRepr} and property C{Float.std_repr}. @note: Use C{env} variable C{PYGEODESY_FLOAT_STD_REPR=std} prior to C{import pygeodesy} to get the standard C{repr} or set property C{std_repr=False} to always get the named C{toRepr} representation. ''' return self.toRepr(std=self._std_repr) def __str__(self): # to avoid MRO(float) '''Return this C{Float} as standard C{str}. ''' # XXX must use super(Float, self)... since super()... # only works for Python 3+ and float.__str__(self) # invokes .__repr__(self); calling self.toRepr(std=True) # super(Float, self).__repr__() mimicks this behavior return super(Float, self).__repr__() # see .test.testCss.py def toRepr(self, prec=12, fmt=Fmt.g, ints=False, std=False): # PYCHOK prec=8, ... '''Return a representation of this C{Float}. @kwarg std: Use the standard C{repr} or the named representation (C{bool}). @see: Function L{fstr} for more documentation. ''' # XXX must use super(Float, self)... since # super()... only works for Python 3+ return super(Float, self).__repr__() if std else \ self._toRepr(fstr(self, prec=prec, fmt=fmt, ints=ints)) def toStr(self, prec=12, fmt=Fmt.g, ints=False): # PYCHOK prec=8, ... '''Format this C{Float} as C{str}. @see: Function L{fstr} for more documentation. ''' return fstr(self, prec=prec, fmt=fmt, ints=ints) class Float_(Float): '''Named C{float} with optional C{low} and C{high} limit. ''' def __new__(cls, arg=None, name=NN, Error=UnitError, low=EPS, high=None, **name_arg): '''New named C{float} instance with limits. @arg cls: This class (C{Float_} or sub-class). @kwarg arg: The value (any C{type} convertable to C{float}). @kwarg name: Optional instance name (C{str}). @kwarg Error: Optional error to raise, overriding the default L{UnitError}. @kwarg low: Optional lower B{C{arg}} limit (C{float} or C{None}). @kwarg high: Optional upper B{C{arg}} limit (C{float} or C{None}). @kwarg name_arg: Optional C{name=arg} keyword argument, inlieu of B{C{name}} and B{C{arg}}. @returns: A C{Float_} instance. @raise Error: Invalid B{C{arg}} or B{C{arg}} below B{C{low}} or above B{C{high}}. ''' if name_arg: name, arg = _xkwds_popitem(name_arg) self = Float.__new__(cls, arg=arg, name=name, Error=Error) if (low is not None) and self < low: txt = Fmt.limit(below=Fmt.g(low, prec=6, ints=isinstance(self, Epoch))) elif (high is not None) and self > high: txt = Fmt.limit(above=Fmt.g(high, prec=6, ints=isinstance(self, Epoch))) else: return self raise _Error(cls, arg, name=name, Error=Error, txt=txt) class Int(int, _NamedUnit): '''Named C{int}. ''' # _std_repr = True # set below def __new__(cls, arg=None, name=NN, Error=UnitError, **name_arg): '''New named C{int} instance. @kwarg arg: The value (any C{type} convertable to C{float}). @kwarg name: Optional instance name (C{str}). @kwarg Error: Optional error to raise, overriding the default L{UnitError}. @kwarg name_arg: Optional C{name=arg} keyword argument, inlieu of B{C{name}} and B{C{arg}}. @returns: An C{Int} instance. @raise Error: Invalid B{C{arg}}. ''' if name_arg: name, arg = _xkwds_popitem(name_arg) try: self = int.__new__(cls, arg) if name: _NamedUnit.name.fset(self, name) # see _Named.name return self except (TypeError, ValueError) as x: # XXX not ... as x: raise _Error(cls, arg, name=name, Error=Error, txt=str(x)) def __repr__(self): # to avoid MRO(int) '''Return a representation of this named C{int}. @see: Method C{Int.toRepr} and property C{Int.std_repr}. @note: Use C{env} variable C{PYGEODESY_INT_STD_REPR=std} prior to C{import pygeodesy} to get the standard C{repr} or set property C{std_repr=False} to always get the named C{toRepr} representation. ''' return self.toRepr(std=self._std_repr) def __str__(self): # to avoid MRO(int) '''Return this C{Int} as standard C{str}. ''' return self.toStr() def toRepr(self, std=False, **unused): # PYCHOK **unused '''Return the representation of thisb is True C{Int}. @kwarg std: Use the standard C{repr} or the named representation (C{bool}). ''' r = int.__repr__(self) # self.toStr() return r if std else self._toRepr(r) def toStr(self, **unused): # PYCHOK **unused '''Return this C{Int} as standard C{str}. ''' # XXX must use '%d' % (self,) since # int.__str__(self) fails with 3.8+ return '%d' % (self,) class Int_(Int): '''Named C{int} with optional limits C{low} and C{high}. ''' def __new__(cls, arg=None, name=NN, Error=UnitError, low=0, high=None, **name_arg): '''New named C{int} instance with limits. @kwarg cls: This class (C{Int_} or sub-class). @arg arg: The value (any C{type} convertable to C{int}). @kwarg name: Optional instance name (C{str}). @kwarg Error: Optional error to raise, overriding the default C{UnitError}. @kwarg low: Optional lower B{C{arg}} limit (C{float} or C{None}). @kwarg high: Optional upper B{C{arg}} limit (C{float} or C{None}). @kwarg name_arg: Optional C{name=arg} keyword argument, inlieu of B{C{name}} and B{C{arg}}. @returns: An L{Int_} instance. @raise Error: Invalid B{C{arg}} or B{C{arg}} below B{C{low}} or above B{C{high}}. ''' if name_arg: name, arg = _xkwds_popitem(name_arg) self = Int.__new__(cls, arg=arg, name=name, Error=Error) if (low is not None) and self < low: txt = Fmt.limit(below=low) elif (high is not None) and self > high: txt = Fmt.limit(above=high) else: return self raise _Error(cls, arg, name=name, Error=Error, txt=txt) class Bool(Int, _NamedUnit): '''Named C{bool}, a sub-class of C{int} like Python's C{bool}. ''' # _std_repr = True # set below _bool_True_or_False = None def __new__(cls, arg=None, name=NN, Error=UnitError, **name_arg): '''New named C{bool} instance. @kwarg cls: This class (C{Bool} or sub-class). @kwarg arg: The value (any C{type} convertable to C{bool}). @kwarg name: Optional instance name (C{str}). @kwarg Error: Optional error to raise, overriding the default L{UnitError}. @kwarg name_arg: Optional C{name=arg} keyword argument, inlieu of B{C{name}} and B{C{arg}}. @returns: A L{Bool}, a C{bool}-like instance. @raise Error: Invalid B{C{arg}}. ''' if name_arg: name, arg = _xkwds_popitem(name_arg) try: b = bool(arg) except (TypeError, ValueError) as x: # XXX not ... as x: raise _Error(cls, arg, name=name, Error=Error, txt=str(x)) self = Int.__new__(cls, b, name=name, Error=Error) self._bool_True_or_False = b return self # <https://StackOverflow.com/questions/9787890/assign-class-boolean-value-in-python> def __bool__(self): # PYCHOK Python 3+ return self._bool_True_or_False __nonzero__ = __bool__ # PYCHOK Python 2- def toRepr(self, std=False, **unused): # PYCHOK **unused '''Return the representation of this C{Bool}. @kwarg std: Use the standard C{repr} or the named representation (C{bool}). @note: Use C{env} variable C{PYGEODESY_BOOL_STD_REPR=std} prior to C{import pygeodesy} to get the standard C{repr} or set property C{std_repr=False} to always get the named C{toRepr} representation. ''' r = repr(self._bool_True_or_False) # self.toStr() return r if std else self._toRepr(r) def toStr(self, **unused): # PYCHOK **unused '''Return this C{Bool} as standard C{str}. ''' return str(self._bool_True_or_False) class Str(str, _NamedUnit): '''Named C{str}. ''' # _std_repr = True # set below def __new__(cls, arg=None, name=NN, Error=UnitError, **name_arg): '''New named C{str} instance. @kwarg cls: This class (C{Str} or sub-class). @kwarg arg: The value (any C{type} convertable to C{str}). @kwarg name: Optional instance name (C{str}). @kwarg Error: Optional error to raise, overriding the default (C{ValueError}). @kwarg name_arg: Optional C{name=arg} keyword argument, inlieu of B{C{name}} and B{C{arg}}. @returns: A L{Str} instance. @raise Error: Invalid B{C{arg}}. ''' if name_arg: name, arg = _xkwds_popitem(name_arg) try: self = str.__new__(cls, arg) if name: _NamedUnit.name.fset(self, name) # see _Named.name return self except (TypeError, ValueError) as x: # XXX not ... as x: raise _Error(cls, arg, name=name, Error=Error, txt=str(x)) def __repr__(self): '''Return a representation of this C{Str}. @see: Method C{Str.toRepr} and property C{Str.std_repr}. @note: Use C{env} variable C{PYGEODESY_STR_STD_REPR=std} prior to C{import pygeodesy} to get the standard C{repr} or set property C{std_repr=False} to always get the named C{toRepr} representation. ''' return self.toRepr(std=self._std_repr) # see .test/testGars.py def __str__(self): '''Return this C{Str} as standard C{str}. ''' return self.toStr() def toRepr(self, std=False, **unused): # PYCHOK **unused '''Return the named representation of this C{Str}. @kwarg std: Use the standard C{repr} or the named representation (C{bool}). ''' # must use super(Str, self).. since # super()... only works for Python 3+ and # str.__repr__(self) fails with Python 3.8+ r = super(Str, self).__repr__() return r if std else self._toRepr(r) def toStr(self, **unused): # PYCHOK **unused '''Return this C{Str} as standard C{str}. ''' # must use super(Str, self)... since # super()... only works for Python 3+ and # str.__str__(self) fails with Python 3.8+ return super(Str, self).__str__() _Str_degrees = Str(_degrees_) # PYCHOK in .frechet, .hausdorff _Str_meter = Str(_meter_) # PYCHOK in .frechet, .hausdorff _Str_NN = Str(NN) # PYCHOK in .frechet, .hausdorff _Str_radians = Str(_radians_) # PYCHOK in .frechet, .hausdorff _Str_radians2 = Str(_radians2_) # PYCHOK in .frechet, .hausdorff class Band(Str): '''Named C{str} representing a UTM/UPS band letter, unchecked. ''' def __new__(cls, arg=None, name=_band_, **Error_name_arg): '''See L{Str}. ''' return Str.__new__(cls, arg=arg, name=name, **Error_name_arg) class Degrees(Float): '''Named C{float} representing a coordinate in C{degrees}, optionally clipped. ''' _ddd_ = 1 # default for .dms._toDMS _suf_ = S_NUL, S_NUL, S_NUL _sep_ = S_SEP def __new__(cls, arg=None, name=_degrees_, Error=UnitError, suffix=_NSEW_, clip=0, **name_arg): '''New named C{Degrees} instance. @arg cls: This class (C{Degrees} or sub-class). @kwarg arg: The value (any C{type} convertable to C{float} or parsable by L{parseDMS}). @kwarg name: Optional instance name (C{str}). @kwarg Error: Optional error to raise, overriding the default L{UnitError}. @kwarg suffix: Optional, valid compass direction suffixes (C{NSEW}). @kwarg clip: Optional B{C{arg}} range B{C{-clip..+clip}} (C{degrees} or C{0} or C{None} for unclipped). @kwarg name_arg: Optional C{name=arg} keyword argument, inlieu of B{C{name}} and B{C{arg}}. @returns: A C{Degrees} instance. @raise Error: Invalid B{C{arg}} or B{C{abs(arg)}} outside the B{C{clip}} range and L{rangerrors} set to C{True}. ''' if name_arg: name, arg = _xkwds_popitem(name_arg) try: return Float.__new__(cls, parseDMS(arg, suffix=suffix, clip=clip), name=name, Error=Error) except RangeError as x: t, E = str(x), type(x) except (TypeError, ValueError) as x: t, E = str(x), Error raise _Error(cls, arg, name=name, Error=E, txt=t) def toRepr(self, prec=None, fmt=F__F_, ints=False, std=False): # PYCHOK prec=8, ... return Float.toRepr(self, std=std) if std else \ self._toRepr(self.toStr(prec=prec, fmt=fmt, ints=ints)) def toStr(self, prec=None, fmt=F__F_, ints=False): # PYCHOK prec=8, ... if fmt.startswith(_PERCENT_): # use regular formatting p = 8 if prec is None else prec return fstr(self, prec=p, fmt=fmt, ints=ints, sep=self._sep_) else: return _toDMS(self, fmt, prec, self._sep_, self._ddd_, self._suf_[0 if self > 0 else (1 if self < 0 else 2)]) class Degrees_(Degrees): '''Named C{Degrees} representing a coordinate in C{degrees} with optional limits C{low} and C{high}. ''' def __new__(cls, arg=None, name=_degrees_, Error=UnitError, suffix=_NSEW_, low=None, high=None, **name_arg): '''New named C{Degrees} instance. @arg cls: This class (C{Degrees_} or sub-class). @kwarg arg: The value (any C{type} convertable to C{float} or parsable by L{parseDMS}). @kwarg name: Optional instance name (C{str}). @kwarg Error: Optional error to raise, overriding the default L{UnitError}. @kwarg suffix: Optional, valid compass direction suffixes (C{NSEW}). @kwarg low: Optional lower B{C{arg}} limit (C{float} or C{None}). @kwarg high: Optional upper B{C{arg}} limit (C{float} or C{None}). @kwarg name_arg: Optional C{name=arg} keyword argument, inlieu of B{C{name}} and B{C{arg}}. @returns: A C{Degrees} instance. @raise Error: Invalid B{C{arg}} or B{C{abs(arg)}} below B{C{low}} or above B{C{high}}. ''' if name_arg: name, arg = _xkwds_popitem(name_arg) self = Degrees.__new__(cls, arg=arg, name=name, Error=Error, suffix=suffix, clip=0) if (low is not None) and self < low: txt = Fmt.limit(below=low) elif (high is not None) and self > high: txt = Fmt.limit(above=high) else: return self raise _Error(cls, arg, name=name, Error=Error, txt=txt) class Degrees2(Float): '''Named C{float} representing a distance in C{degrees squared}. ''' def __new__(cls, arg=None, name=_degrees2_, **Error_name_arg): '''See L{Float}. ''' return Float.__new__(cls, arg=arg, name=name, **Error_name_arg) class Radians(Float): '''Named C{float} representing a coordinate in C{radians}, optionally clipped. ''' def __new__(cls, arg=None, name=_radians_, Error=UnitError, suffix=_NSEW_, clip=0, **name_arg): '''New named C{Radians} instance. @arg cls: This class (C{Radians} or sub-class). @kwarg arg: The value (any C{type} convertable to C{float} or parsable by L{parseRad}). @kwarg name: Optional instance name (C{str}). @kwarg Error: Optional error to raise, overriding the default L{UnitError}. @kwarg suffix: Optional, valid compass direction suffixes (C{NSEW}). @kwarg clip: Optional B{C{arg}} range B{C{-clip..+clip}} (C{radians} or C{0} or C{None} for unclipped). @kwarg name_arg: Optional C{name=arg} keyword argument, inlieu of B{C{name}} and B{C{arg}}. @returns: A C{Radians} instance. @raise Error: Invalid B{C{arg}} or B{C{abs(arg)}} below B{C{low}} or above B{C{high}}. ''' if name_arg: name, arg = _xkwds_popitem(name_arg) try: return Float.__new__(cls, parseRad(arg, suffix=suffix, clip=clip), name=name, Error=Error) except RangeError as x: t, E = str(x), type(x) except (TypeError, ValueError) as x: t, E = str(x), Error raise _Error(cls, arg, name=name, Error=E, txt=t) def toRepr(self, prec=8, fmt=F__F, ints=False, std=False): # PYCHOK prec=8, ... return Float.toRepr(self, prec=prec, fmt=fmt, ints=ints, std=std) def toStr(self, prec=8, fmt=F__F, ints=False): # PYCHOK prec=8, ... return fstr(self, prec=prec, fmt=fmt, ints=ints) class Radians_(Radians): '''Named C{float} representing a coordinate in C{radians} with optional limits C{low} and C{high}. ''' def __new__(cls, arg=None, name=_radians_, Error=UnitError, suffix=_NSEW_, low=_0_0, high=PI2, **name_arg): '''New named C{Radians} instance. @arg cls: This class (C{Radians_} or sub-class). @kwarg arg: The value (any C{type} convertable to C{float} or parsable by L{parseRad}). @kwarg name: Optional instance name (C{str}). @kwarg Error: Optional error to raise, overriding the default L{UnitError}. @kwarg suffix: Optional, valid compass direction suffixes (C{NSEW}). @kwarg low: Optional lower B{C{arg}} limit (C{float} or C{None}). @kwarg high: Optional upper B{C{arg}} limit (C{float} or C{None}). @kwarg name_arg: Optional C{name=arg} keyword argument, inlieu of B{C{name}} and B{C{arg}}. @returns: A C{Radians_} instance. @raise Error: Invalid B{C{arg}} or B{C{abs(deg)}} outside the B{C{clip}} range and L{rangerrors} set to C{True}. ''' if name_arg: name, arg = _xkwds_popitem(name_arg) self = Radians.__new__(cls, arg=arg, name=name, Error=Error, suffix=suffix, clip=0) if (low is not None) and self < low: txt = Fmt.limit(below=low) elif (high is not None) and self > high: txt = Fmt.limit(above=high) else: return self raise _Error(cls, arg, name=name, Error=Error, txt=txt) class Radians2(Float_): '''Named C{float} representing a distance in C{radians squared}. ''' def __new__(cls, arg=None, name=_radians2_, Error=UnitError, **name_arg): '''See L{Float_}. ''' return Float_.__new__(cls, arg=arg, name=name, Error=Error, low=_0_0, **name_arg) class Bearing(Degrees): '''Named C{float} representing a bearing in compass C{degrees} from (true) North. ''' _ddd_ = 1 _suf_ = _N_ * 3 # always suffix N def __new__(cls, arg=None, name=_bearing_, Error=UnitError, clip=0, **name_arg): '''See L{Degrees}. ''' if name_arg: name, arg = _xkwds_popitem(name_arg) d = Degrees.__new__(cls, arg=arg, name=name, Error=Error, suffix=_N_, clip=clip) b = d % 360 return d if b == d else Degrees.__new__(cls, arg=b, name=name, Error=Error) class Bearing_(Radians): '''Named C{float} representing a bearing in C{radians} from compass C{degrees} from (true) North. ''' def __new__(cls, arg=None, name=_bearing_, clip=0, **Error_name_arg): '''See L{Bearing} and L{Radians}. ''' d = Bearing.__new__(cls, arg=arg, name=name, clip=clip, **Error_name_arg) return Radians.__new__(cls, radians(d), name=name) class Distance(Float): '''Named C{float} representing a distance, conventionally in C{meter}. ''' def __new__(cls, arg=None, name=_distance_, **Error_name_arg): '''See L{Distance}. ''' return Float.__new__(cls, arg=arg, name=name, **Error_name_arg) class Distance_(Float_): '''Named C{float} with optional C{low} and C{high} limits representing a distance, conventionally in C{meter}. ''' def __new__(cls, arg=None, name=_distance_, low=EPS, **high_Error_name_arg): '''See L{Distance_}. ''' return Float_.__new__(cls, arg=arg, name=name, low=low, **high_Error_name_arg) class Easting(Float): '''Named C{float} representing an easting, conventionally in C{meter}. ''' def __new__(cls, arg=None, name=_easting_, Error=UnitError, falsed=False, osgr=False, **name_arg): '''New named C{Easting} or C{Easting of Point} instance. @arg cls: This class (C{Easting} or sub-class). @kwarg arg: The value (any C{type} convertable to C{float}). @kwarg name: Optional instance name (C{str}). @kwarg Error: Optional error to raise, overriding the default L{UnitError}. @kwarg falsed: The B{C{arg}} value includes false origin (C{bool}). @kwarg osgr: Check B{C{arg}} as an OSGR easting (C{bool}). @kwarg name_arg: Optional C{name=arg} keyword argument, inlieu of B{C{name}} and B{C{arg}}. @returns: An C{Easting} instance. @raise Error: Invalid B{C{arg}} or negative, falsed B{C{arg}}. ''' if name_arg: name, arg = _xkwds_popitem(name_arg) self = Float.__new__(cls, arg=arg, name=name, Error=Error) if osgr and (self < 0 or self > 700e3): # like Veness raise _Error(cls, arg, name=name, Error=Error) elif falsed and self < 0: raise _Error(cls, arg, name=name, Error=Error, txt='negative, falsed') return self class Epoch(Float_): # by .ellipsoidalBase '''Named C{epoch} with optional C{low} and C{high} limits representing a fractional calendar year. ''' _std_repr = False def __new__(cls, arg=None, name=_epoch_, Error=TRFError, low=1900, high=9999, **name_arg): '''See L{Float_}. ''' if name_arg: name, arg = _xkwds_popitem(name_arg) return arg if isinstance(arg, Epoch) else \ Float_.__new__(cls, arg=arg, name=name, Error=Error, low=low, high=high) def toRepr(self, std=False, **unused): # PYCHOK prec=3, fmt=Fmt.F, ints=True '''Return a representation of this C{Epoch}. @kwarg std: Use the standard C{repr} or the named representation (C{bool}). @see: Function L{fstr} for more documentation. ''' return Float_.toRepr(self, prec=-3, fmt=Fmt.F, ints=True, std=std) def toStr(self, **unused): # PYCHOK prec=3, fmt=Fmt.F, ints=True '''Format this C{Epoch} as C{str}. @see: Function L{fstr} for more documentation. ''' return Float_.toStr(self, prec=-3, fmt=Fmt.F, ints=True) __str__ = toStr # PYCHOK default '%.3F', without trailing zeros and decimal point class Feet(Float): '''Named C{float} representing a distance or length in C{feet}. ''' def __new__(cls, arg=None, name=_feet_, **Error_name_arg): '''See L{Float}. ''' return Float.__new__(cls, arg=arg, name=name, **Error_name_arg) class FIx(Float_): '''A named I{Fractional Index}, an C{int} or C{float} index into a C{list} or C{tuple} of C{points}, typically. A C{float} I{Fractional Index} C{fi} represents a location on the edge between C{points[int(fi)]} and C{points[(int(fi) + 1) % len(points)]}. ''' _fin = 0 def __new__(cls, fi, fin=None, **name_Error): '''New I{Fractional Index} in a C{list} or C{tuple} of points. @arg fi: The fractional index (C{float} or C{int}). @kwarg fin: Optional C{len}, the number of C{points}, the index C{[n]} wrapped to C{[0]} (C{int} or C{None}). @kwarg name_Error: Optional keyword argument C{name=<name>} and/or C{Error=<Exception>}. @return: The B{C{fi}} (named L{FIx}). @note: The returned B{C{fi}} may exceed the B{C{flen}} of the original C{points} in certain open/closed cases. @see: Method L{fractional} or function L{pygeodesy.fractional}. ''' n = Int_(fin=fin, low=0) if fin else None f = Float_.__new__(cls, fi, low=_0_0, high=n, **name_Error) i = int(f) r = f - float(i) if r < EPS: # see .points._fractional f = Float_.__new__(cls, i) elif r > EPS1: f = Float_.__new__(cls, i + 1, high=n, **name_Error) if n: f._fin = n return f @Property_RO def fin(self): '''Get the given C{len}, the index C{[n]} wrapped to C{[0]} (C{int}). ''' return self._fin def fractional(self, points, **LatLon_LatLon_kwds): '''Return the point at this I{Fractional Index}. @arg points: The points (C{LatLon}[], L{Numpy2LatLon}[], L{Tuple2LatLon}[] or C{other}[]). @kwarg **LatLon_LatLon_kwds: Optional class to return the I{intermediate}, I{fractional} point (C{LatLon}) or C{None} and optional B{C{LatLon}} keyword arguments thereof. @return: See function L{pygeodesy.fractional}. @raise IndexError: Fractional index invalid for B{C{points}} or B{C{points}} not subscriptable or not closed. ''' from pygeodesy.points import fractional # fi = 0 if self == self.fin else self return fractional(points, self, **LatLon_LatLon_kwds) class Height(Float): # here to avoid circular import '''Named C{float} representing a height, conventionally in C{meter}. ''' def __new__(cls, arg=None, name=_height_, **Error_name_arg): '''See L{Float}. ''' return Float.__new__(cls, arg=arg, name=name, **Error_name_arg) class Lam(Radians): '''Named C{float} representing a longitude in C{radians}. ''' def __new__(cls, arg=None, name=_lam_, clip=PI, **Error_name_arg): '''See L{Radians}. ''' return Radians.__new__(cls, arg=arg, name=name, suffix=_EW_, clip=clip, **Error_name_arg) class Lam_(Lam): '''Named C{float} representing a longitude in C{radians} converted from C{degrees}. ''' def __new__(cls, arg=None, name=_lon_, clip=180, **Error_name_arg): '''See L{Degrees} and L{Radians}. ''' d = Lam.__new__(cls, arg=arg, name=name, clip=clip, **Error_name_arg) return Radians.__new__(cls, radians(d), name=name) class Lat(Degrees): '''Named C{float} representing a latitude in C{degrees}. ''' _ddd_ = 2 _suf_ = _N_, _S_, S_NUL # no zero suffix def __new__(cls, arg=None, name=_lat_, clip=90, **Error_name_arg): '''See L{Degrees}. ''' return Degrees.__new__(cls, arg=arg, name=name, suffix=_NS_, clip=clip, **Error_name_arg) class Lat_(Degrees_): '''Named C{float} representing a latitude in C{degrees} within limits C{low} and C{high}. ''' _ddd_ = 2 _suf_ = _N_, _S_, S_NUL # no zero suffix def __new__(cls, arg=None, name=_lat_, low=-90, high=90, **Error_name_arg): '''See L{Degrees_}. ''' return Degrees_.__new__(cls, arg=arg, name=name, suffix=_NS_, low=low, high=high, **Error_name_arg) class Lon(Degrees): '''Named C{float} representing a longitude in C{degrees}. ''' _ddd_ = 3 _suf_ = _E_, _W_, S_NUL # no zero suffix def __new__(cls, arg=None, name=_lon_, clip=180, **Error_name_arg): '''See L{Degrees}. ''' return Degrees.__new__(cls, arg=arg, name=name, suffix=_EW_, clip=clip, **Error_name_arg) class Lon_(Degrees_): '''Named C{float} representing a longitude in C{degrees} within limits C{low} and C{high}. ''' _ddd_ = 3 _suf_ = _E_, _W_, S_NUL # no zero suffix def __new__(cls, arg=None, name=_lon_, low=-180, high=180, **Error_name_arg): '''See L{Degrees_}. ''' return Degrees_.__new__(cls, arg=arg, name=name, suffix=_EW_, low=low, high=high, **Error_name_arg) class Meter(Float): '''Named C{float} representing a distance or length in C{meter}. ''' def __new__(cls, arg=None, name=_meter_, **Error_name_arg): '''See L{Float}. ''' return Float.__new__(cls, arg=arg, name=name, **Error_name_arg) def __repr__(self): '''Return a representation of this C{Meter}. @see: Method C{Str.toRepr} and property C{Str.std_repr}. @note: Use C{env} variable C{PYGEODESY_METER_STD_REPR=std} prior to C{import pygeodesy} to get the standard C{repr} or set property C{std_repr=False} to always get the named C{toRepr} representation. ''' return self.toRepr(std=self._std_repr) _1mm = Meter( _1mm=_0_001) # PYCHOK 1 millimeter in .ellipsoidal... _10um = Meter( _10um= 1e-5) # PYCHOK 0.01 millimeter in .osgr _100km = Meter( _100km= 1e+5) # PYCHOK 100 kilometer in .formy, .mgrs, .osgr _2000km = Meter(_2000km= 2e+6) # PYCHOK 2,000 kilometer in .mgrs class Meter2(Float_): '''Named C{float} representing an area in C{meter squared}. ''' def __new__(cls, arg=None, name=_meter2_, Error=UnitError, **name_arg): '''See L{Float_}. ''' return Float_.__new__(cls, arg=arg, name=name, Error=Error, low=_0_0, **name_arg) class Meter3(Float_): '''Named C{float} representing a volume in C{meter cubed}. ''' def __new__(cls, arg=None, name='meter3', Error=UnitError, **name_arg): '''See L{Float_}. ''' return Float_.__new__(cls, arg=arg, name=name, Error=Error, low=_0_0, **name_arg) class Northing(Float): '''Named C{float} representing a northing, conventionally in C{meter}. ''' def __new__(cls, arg=None, name=_northing_, Error=UnitError, falsed=False, osgr=False, **name_arg): '''New named C{Northing} or C({Northing of point} instance. @arg cls: This class (C{Northing} or sub-class). @kwarg arg: The value (any C{type} convertable to C{float}). @kwarg name: Optional instance name (C{str}). @kwarg Error: Optional error to raise, overriding the default L{UnitError}. @kwarg falsed: The B{C{arg}} value includes false origin (C{bool}). @kwarg osgr: Check B{C{arg}} as an OSGR northing (C{bool}). @kwarg name_arg: Optional C{name=arg} keyword argument, inlieu of B{C{name}} and B{C{arg}}. @returns: A C{Northing} instance. @raise Error: Invalid B{C{arg}} or negative, falsed B{C{arg}}. ''' if name_arg: name, arg = _xkwds_popitem(name_arg) self = Float.__new__(cls, arg=arg, name=name, Error=Error) if osgr and (self < 0 or self > 1300e3): # like Veness raise _Error(cls, arg, name=name, Error=Error) elif falsed and self < 0: raise _Error(cls, arg, name=name, Error=Error, txt='negative, falsed') return self class Number_(Int_): '''Named C{int} representing a non-negative number. ''' def __new__(cls, arg=None, name=_number_, low=0, **high_Error_name_arg): '''See L{Int_}. ''' return Int_.__new__(cls, arg=arg, name=name, low=low, **high_Error_name_arg) class Phi(Radians): '''Named C{float} representing a latitude in C{radians}. ''' def __new__(cls, arg=None, name=_phi_, clip=PI_2, **Error_name_arg): '''See L{Radians}. ''' return Radians.__new__(cls, arg=arg, name=name, suffix=_NS_, clip=clip, **Error_name_arg) class Phi_(Phi): '''Named C{float} representing a latitude in C{radians} converted from C{degrees}. ''' def __new__(cls, arg=None, name=_lat_, Error=UnitError, clip=90, **name_arg): '''See L{Degrees} and L{Radians}. ''' if name_arg: name, arg = _xkwds_popitem(name_arg) d = Phi.__new__(cls, arg=arg, name=name, Error=Error, clip=clip) return Radians.__new__(cls, arg=radians(d), name=name, Error=Error) class Precision_(Int_): '''Named C{int} with optional C{low} and C{high} limits representing a precision. ''' def __new__(cls, arg=None, name=_precision_, low=0, **high_Error_name_arg): '''See L{Int_}. ''' return Int_.__new__(cls, arg=arg, name=name, low=low, **high_Error_name_arg) class Radius(Float): '''Named C{float} representing a radius, conventionally in C{meter}. ''' def __new__(cls, arg=None, name=_radius_, **Error_name_arg): '''See L{Float}. ''' return Float.__new__(cls, arg=arg, name=name, **Error_name_arg) class Radius_(Float_): '''Named C{float} with optional C{low} and C{high} limits representing a radius, conventionally in C{meter}. ''' def __new__(cls, arg=None, name=_radius_, low=EPS, **high_Error_name_arg): '''See L{Float}. ''' return Float_.__new__(cls, arg=arg, name=name, low=low, **high_Error_name_arg) class Scalar(Float): '''Named C{float} representing a factor, fraction, scale, etc. ''' def __new__(cls, arg=None, name=_scalar_, **Error_name_arg): '''See L{Float}. ''' return Float.__new__(cls, arg=arg, name=name, **Error_name_arg) class Scalar_(Float_): '''Named C{float} with optional C{low} and C{high} limits representing a factor, fraction, scale, etc. ''' def __new__(cls, arg=None, name=_scalar_, low=_0_0, **high_Error_name_arg): '''See L{Float_}. ''' return Float_.__new__(cls, arg=arg, name=name, low=low, **high_Error_name_arg) class Zone(Int): '''Named C{int} representing a UTM/UPS zone number. ''' def __new__(cls, arg=None, name=_zone_, **Error_name_arg): '''See L{Int} ''' # usually low=_UTMUPS_ZONE_MIN, high=_UTMUPS_ZONE_MAX return Int_.__new__(cls, arg=arg, name=name, **Error_name_arg) def _Error(clas, arg, name=NN, Error=UnitError, txt=_invalid_): '''(INTERNAL) Return an error with explanation. @arg clas: The C{units} class or sub-class. @arg arg: The original C{unit} value. @kwarg name: The instance name (C{str}). @kwarg Error: Optional error, overriding the default L{UnitError}. @kwarg txt: Optional explanation of the error (C{str}). @returns: An B{C{Error}} instance. ''' n = name if name else modulename(clas).lstrip(_UNDER_) return Error(n, arg, txt=txt) def _xStrError(*Refs, **name_value_Error): '''(INTERNAL) Create a C{TypeError} for C{Garef}, C{Geohash}, C{Wgrs}. ''' r = tuple(r.__name__ for r in Refs) + (Str.__name__, _LatLon_, 'LatLon*Tuple') return _IsnotError(*r, **name_value_Error) def _xUnit(units, Base): # in .frechet, .hausdorff '''(INTERNAL) Get C{Unit} from C{Unit} or C{name}, ortherwise C{Base}. ''' if not issubclassof(Base, _NamedUnit): raise _IsnotError(_NamedUnit.__name__, Base=Base) U = globals().get(units.capitalize(), Base) if isstr(units) else ( units if issubclassof(units, Base) else Base) return U if issubclassof(U, Base) else Base def _xUnits(units, Base=_NamedUnit): # in .frechet, .hausdorff '''(INTERNAL) Set property C{units} as C{Unit} or C{Str}. ''' if not issubclassof(Base, _NamedUnit): raise _IsnotError(_NamedUnit.__name__, Base=Base) elif issubclassof(units, Base): return units elif isstr(units): return Str(units, name=_units_) # XXX Str to _Pass and for backward compatibility else: raise _IsnotError(Base.__name__, Str.__name__, str.__name__, units=units) def _std_repr(*classes): '''(INTERNAL) Use standard C{repr} or named C{toRepr}. ''' for C in classes: if hasattr(C, _std_repr.__name__): # PYCHOK del _std_repr env = 'PYGEODESY_%s_STD_REPR' % (C.__name__.upper(),) if _env.get(env, _std_).lower() != _std_: C._std_repr = False _std_repr(Bool, Float, Int, Meter, Str) # PYCHOK expected del _std_repr __all__ += _ALL_DOCS(_NamedUnit) # **) MIT License # # Copyright (C) 2016-2021 -- 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.