1# -*- coding: utf-8 -*- 2""" 3""" 4from __future__ import absolute_import 5 6from ..unitquantity import UnitLength, UnitQuantity 7 8m = meter = metre = UnitLength( 9 'meter', 10 symbol='m', 11 aliases=['meters', 'metre', 'metres'] 12) 13km = kilometer = kilometre = UnitLength( 14 'kilometer', 15 1000*m, 16 symbol='km', 17 aliases=['kilometers', 'kilometre', 'kilometres'] 18) 19cm = centimeter = centimetre = UnitLength( 20 'centimeter', 21 m/100, 22 'cm', 23 aliases=['centimeters', 'centimetre', 'centimetres'] 24) 25mm = millimeter = millimetre = UnitLength( 26 'millimeter', 27 m/1000, 28 symbol='mm', 29 aliases=['millimeters', 'millimetre', 'millimetres'] 30) 31um = micrometer = micrometre = micron = UnitLength( 32 'micrometer', 33 mm/1000, 34 symbol='um', 35 u_symbol='µm', 36 aliases=[ 37 'micron', 'microns', 'micrometers', 'micrometre', 'micrometres' 38 ] 39) 40nm = nanometer = nanometre = UnitLength( 41 'nanometer', 42 um/1000, 43 symbol='nm', 44 aliases=['nanometers', 'nanometre', 'nanometres'] 45) 46pm = picometer = picometre = UnitLength( 47 'picometer', 48 nm/1000, 49 symbol='pm', 50 aliases=['picometers', 'picometre', 'picometres'] 51) 52angstrom = UnitLength( 53 'angstrom', 54 nm/10, 55 u_symbol='Å', 56 aliases=['angstroms'] 57) 58fm = femtometer = femtometre = fermi = UnitLength( 59 'femtometer', 60 pm/1000, 61 symbol='fm', 62 aliases=['femtometers', 'femtometre', 'femtometres', 'fermi', 'fermis'] 63) 64 65inch = international_inch = UnitLength( 66 'inch', 67 2.54*cm, 68 symbol='in', 69 aliases=['inches', 'international_inch', 'international_inches'] 70) 71ft = foot = international_foot = UnitLength( 72 'foot', 73 12*inch, 74 symbol='ft', 75 aliases=['feet', 'international_foot' 'international_feet'] 76) 77mi = mile = international_mile = UnitLength( 78 'mile', 79 5280*ft, 80 symbol='mi', 81 aliases=['miles', 'international_mile', 'international_miles'] 82) 83yd = yard = international_yard = UnitLength( 84 'yard', 85 3*ft, 86 symbol='yd', 87 aliases=['yards', 'international_yard', 'international_yards'] 88) 89mil = thou = UnitLength( 90 'mil', 91 inch/1000, 92 aliases=['mils', 'thou', 'thous'] 93) 94pc = parsec = UnitLength( 95 'parsec', 96 3.08568025e16*m, 97 symbol='pc', 98 aliases=['parsecs'], 99 doc='approximate' 100) 101ly = light_year = UnitLength( 102 'light_year', 103 9460730472580.8*km, 104 symbol='ly', 105 aliases=['light_years'] 106) 107au = astronomical_unit = UnitLength( 108 'astronomical_unit', 109 149597870691*m, 110 symbol='au', 111 aliases=['astronomical_units'], 112 doc=''' 113 An astronomical unit (abbreviated as AU, au, a.u., or sometimes ua) is a 114 unit of length roughly equal to the mean distance between the Earth and 115 the Sun. It is approximately 150 million kilometres (93 million miles). 116 117 uncertainty ± 30 m 118 119 http://en.wikipedia.org/wiki/Astronomical_unit 120 ''' 121) 122 123nmi = nautical_mile = UnitLength( 124 'nautical_mile', 125 1.852e3*m, 126 symbol='nmi', 127 aliases=['nmile', 'nmiles', 'nautical_miles'] 128) 129pt = printers_point = point = UnitLength( 130 'printers_point', 131 127*mm/360, 132 symbol='point', 133 aliases=['printers_points', 'points'], 134 doc='pt is reserved for pint' 135) 136pica = UnitLength( 137 'pica', 138 12*printers_point, 139 aliases=['picas', 'printers_pica', 'printers_picas'] 140) 141 142US_survey_foot = UnitLength( 143 'US_survey_foot', 144 1200*m/3937, 145 aliases=['US_survey_feet'] 146) 147US_survey_yard = UnitLength( 148 'US_survey_yard', 149 3*US_survey_foot, 150 aliases=['US_survey_yards'] 151) 152US_survey_mile = US_statute_mile = UnitLength( 153 'US_survey_mile', 154 5280*US_survey_foot, 155 aliases=['US_survey_miles', 'US_statute_mile', 'US_statute_miles'] 156) 157rod = pole = perch = UnitLength( 158 'rod', 159 16.5*US_survey_foot, 160 aliases=['rods', 'pole', 'poles', 'perch', 'perches'] 161) 162furlong = UnitLength( 163 'furlong', 164 660*US_survey_foot, 165 aliases=['furlongs'] 166) 167fathom = UnitLength( 168 'fathom', 169 6*US_survey_foot, 170 aliases=['fathoms'] 171) 172chain = UnitLength( 173 'chain', 174 66*US_survey_foot, 175 aliases=['chains'] 176) 177barleycorn = UnitLength( 178 'barleycorn', 179 inch/3, 180 aliases=['barleycorns'] 181) 182arpentlin = UnitLength( 183 'arpentlin', 184 191.835*ft 185) 186 187kayser = wavenumber = UnitQuantity( 188 'kayser', 189 1/cm, 190 aliases=['kaysers', 'wavenumber', 'wavenumbers'] 191) 192 193del UnitQuantity 194