# Coverage for pygeodesy/units.py : 96%

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''' pass 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 = (self.name, ' ') if self.name else (self.classname,) return ''.join(t + ('(', str(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.lower() 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, name=NN, Error=UnitError): '''New named C{float} instance. @arg 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}. @returns: A C{Float} instance. @raise Error: Invalid B{C{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 env variable {PYGEODESY_FLOAT_STD_REPR=std} to get the standard C{repr} or use C{-=named} for the named C{toRepr}. ''' 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='g', ints=False, std=False): # PYCHOK prec=8, ... '''Return a representation of this named 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='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, name=NN, Error=UnitError, low=EPS, high=None): '''New named C{float} instance with limits. @arg cls: This class (C{Float_} or sub-class). @arg 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}). @returns: A C{Float_} instance. @raise Error: Invalid B{C{arg}} or B{C{arg}} below B{C{low}} or above B{C{high}}. ''' self = Float.__new__(cls, arg, name=name, Error=Error) if (low is not None) and self < low: raise _Error(cls, arg, name=name, Error=Error, txt='below %.6G limit' % (low,)) if (high is not None) and self > high: raise _Error(cls, arg, name=name, Error=Error, txt='above %.6G limit' % (high,)) return self class Int(int, _NamedUnit): '''Named C{int}. ''' # _std_repr = True # set below def __new__(cls, arg, name=NN, Error=UnitError): '''New named {int} instance. @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 L{UnitError}. @returns: An C{Int} instance. @raise Error: Invalid B{C{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 env variable {PYGEODESY_INT_STD_REPR=std} to get the standard C{repr} or use C{...=named} for the named C{toRepr}. ''' 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 this named 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, name=NN, Error=UnitError, low=0, high=None): '''New named C{int} instance with limits. @arg 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}). @returns: An L{Int_} instance. @raise Error: Invalid B{C{arg}} or B{C{arg}} below B{C{low}} or above B{C{high}}. ''' self = Int.__new__(cls, arg, name=name, Error=Error) if (low is not None) and self < low: raise _Error(cls, arg, name=name, Error=Error, txt='below %s limit' % (low,)) if (high is not None) and self > high: raise _Error(cls, arg, name=name, Error=Error, txt='above %s limit' % (high,)) return self class Str(str, _NamedUnit): '''Named C{str}. ''' # _std_repr = True # set below def __new__(cls, arg, name=NN, Error=UnitError): '''New named C{str} instance. @arg 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}). @returns: A L{Str} instance. @raise Error: Invalid B{C{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 env variable {PYGEODESY_STR_STD_REPR=std} to get the standard C{repr} or use C{...=named} for the named C{toRepr}. ''' 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__() class Band(Str): '''Named C{str} representing a UTM/UPS band latter, unchecked. ''' def __new__(cls, arg, name='band', Error=UnitError): '''See L{Str}. ''' return Str.__new__(cls, arg, name=name, Error=Error) 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, name=_Degrees, Error=UnitError, suffix=_NSEW, clip=0): '''New named C{Degrees} instance. @arg cls: This class (C{Degrees} or sub-class). @arg 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). @returns: A C{Degrees} 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}. ''' 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('%'): # 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 Bearing(Degrees): '''Named C{float} representing a bearing in compass C{degrees}. ''' _ddd_ = 1 _suf_ = 'NNN' # always suffix N def __new__(cls, arg, name='bearing', Error=UnitError, clip=0): '''See L{Degrees}. ''' d = Degrees.__new__(cls, arg, name=name, Error=Error, suffix='N', clip=clip) b = d % 360 return d if b == d else Degrees.__new__(cls, b, name=name) class Radians(Float): '''Named C{float} representing a coordinate in C{radians}, optionally clipped. ''' def __new__(cls, arg, name=_Radians, Error=UnitError, suffix=_NSEW, clip=0): '''New named C{Radians} instance. @arg cls: This class (C{Radians} or sub-class). @arg 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). @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}. ''' 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 Bearing_(Radians): '''Named C{float} representing a bearing in C{radians} from compass C{degrees}. ''' def __new__(cls, arg, name='bearing', Error=UnitError, clip=0): '''See L{Bearing} and L{Radians}. ''' d = Bearing.__new__(cls, arg, name=name, Error=Error, clip=clip) 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, name='distance', Error=UnitError): '''See L{Float}. ''' return Float.__new__(cls, arg, name=name, Error=Error) class Easting(Float): '''Named C{float} representing an easting. ''' def __new__(cls, arg, name='easting', Error=UnitError, falsed=False): '''New named C{Easting} instance. @arg cls: This class (C{Easting} or sub-class). @arg 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}). @returns: An C{Easting} instance. @raise Error: Invalid B{C{arg}} or negative, falsed B{C{arg}}. ''' self = Float.__new__(cls, arg, name=name, Error=Error) if falsed and self < 0: raise _Error(cls, arg, name=name, Error=Error, txt='negative, falsed') return self class Feet(Float): '''Named C{float} representing a distance or length in C{feet}. ''' def __new__(cls, arg, name='feet', Error=UnitError): '''See L{Float}. ''' return Float.__new__(cls, arg, name=name, Error=Error) class Height(Float): # here to avoid circular import '''Named C{float} representing a height, conventionally in C{meter}. ''' def __new__(cls, arg, name='height', Error=UnitError): '''See L{Float}. ''' return Float.__new__(cls, arg, name=name, Error=Error) class Lam(Radians): '''Named C{float} representing a longitude in C{radians}. ''' def __new__(cls, arg, name='lam', Error=UnitError, clip=PI): '''See L{Radians}. ''' return Radians.__new__(cls, arg, name=name, Error=Error, suffix=_EW, clip=clip) class Lam_(Lam): '''Named C{float} representing a longitude in C{radians} converted from C{degrees}. ''' def __new__(cls, arg, name='lon', Error=UnitError, clip=180): '''See L{Degrees} and L{Radians}. ''' d = Lam.__new__(cls, arg, name=name, Error=Error, clip=clip) 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, name='lat', Error=UnitError, clip=90): '''See L{Degrees}. ''' return Degrees.__new__(cls, arg, name=name, Error=Error, suffix=_NS, clip=clip) class Lon(Float): '''Named C{float} representing a longitude in C{degrees}. ''' _ddd_ = 3 _suf_ = 'E', 'W', S_NUL # no zero suffix def __new__(cls, arg, name='lon', Error=UnitError, clip=180): '''See L{Degrees}. ''' return Degrees.__new__(cls, arg, name=name, Error=Error, suffix=_EW, clip=clip) class Meter(Float): '''Named C{float} representing a distance or length in C{meter}. ''' def __new__(cls, arg, name='meter', Error=UnitError): '''See L{Float}. ''' return Float.__new__(cls, arg, name=name, Error=Error) class Northing(Float): '''Named C{float} representing a northing. ''' def __new__(cls, arg, name='northing', Error=UnitError, falsed=False): '''New named C{Northing} instance. @arg cls: This class (C{Northing} or sub-class). @arg 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}). @returns: A C{Northing} instance. @raise Error: Invalid B{C{arg}} or negative, falsed B{C{arg}}. ''' self = Float.__new__(cls, arg, name=name, Error=Error) if falsed and self < 0: raise _Error(cls, arg, name=name, Error=Error, txt='negative, falsed') return self class Number_(Int_): '''Named C{int} with optional limits C{low} and C{high} representing a non-negtive number. ''' def __new__(cls, arg, name='number', Error=UnitError, low=0, high=None): '''See L{Int_}. ''' return Int_.__new__(cls, arg, name=name, Error=Error, low=low, high=high) class Phi(Radians): '''Named C{float} representing a latitude in C{radians}. ''' def __new__(cls, arg, name='phi', Error=UnitError, clip=PI_2): '''See L{Radians}. ''' return Radians.__new__(cls, arg, name=name, Error=Error, suffix=_NS, clip=clip) class Phi_(Phi): '''Named C{float} representing a latitude in C{radians} converted from C{degrees}. ''' def __new__(cls, arg, name='lat', Error=UnitError, clip=90): '''See L{Degrees} and L{Radians}. ''' d = Phi.__new__(cls, arg, name=name, Error=Error, clip=clip) return Radians.__new__(cls, radians(d), name=name) class Precision_(Int_): '''Named C{int} with optional C{low} and C{high} limits representing a precision. ''' def __new__(cls, arg, name='precision', Error=UnitError, low=0, high=None): '''See L{Int_}. ''' return Int_.__new__(cls, arg, name=name, Error=Error, low=low, high=high) class Radius(Float): '''Named C{float} representing a radius, conventionally in C{meter}. ''' def __new__(cls, arg, name='radius', Error=UnitError): '''See L{Float}. ''' return Float.__new__(cls, arg, name=name, Error=Error) 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, name='radius', Error=UnitError, low=EPS, high=None): '''See L{Float}. ''' return Float_.__new__(cls, arg, name=name, Error=Error, low=low, high=high) class Scalar(Float): '''Named C{float} representing a factor, fraction, scale, etc. ''' def __new__(cls, arg, name='scalar', Error=UnitError): '''See L{Float}. ''' return Float.__new__(cls, arg, name=name, Error=Error) class Scalar_(Float_): '''Named C{float} with optional C{low} and C{high} limits representing a factor, fraction, scale, etc. ''' def __new__(cls, arg, name='scalar', Error=UnitError, low=0.0, high=None): '''See L{Float_}. ''' return Float_.__new__(cls, arg, name=name, Error=Error, low=low, high=high) class Zone(Int): '''Named C{int} representing a UTM/UPS zone number. ''' def __new__(cls, arg, name='zone', Error=UnitError): '''See L{Int} ''' # usually low=_UTMUPS_ZONE_MIN, high=_UTMUPS_ZONE_MAX return Int_.__new__(cls, arg, name=name, Error=Error) 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('_') 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 _std_repr(*classes): '''(INTERNAL) Use standard C{repr} or named C{toRepr}. ''' from os import environ as _environ for C in classes: if hasattr(C, _std_repr.__name__): # PYCHOK del _std_repr env = 'PYGEODESY_%s_STD_REPR' % (C.__name__.upper(),) if _environ.get(env, 'std').lower() != 'std': C._std_repr = False _std_repr(Float, Int, Str) # PYCHOK expected del _std_repr # **) MIT License # # Copyright (C) 2016-2020 -- 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.