1# -*- coding: utf-8 -*- 2""" 3""" 4from __future__ import absolute_import 5 6from ..unitquantity import UnitQuantity, UnitMass 7from .length import m 8 9kg = kilogram = UnitMass( 10 'kilogram', 11 symbol='kg', 12 aliases=['kilograms'] 13) 14g = gram = UnitMass( 15 'gram', 16 kg/1000, 17 symbol='g', 18 aliases=['grams'] 19) 20mg = milligram = UnitMass( 21 'milligram', 22 gram/1000, 23 symbol='mg', 24 aliases=['milligrams'] 25) 26oz = ounce = avoirdupois_ounce = UnitMass( 27 'ounce', 28 28.349523125*g, 29 symbol='oz', 30 aliases=['ounces','avoirdupois_ounce', 'avoirdupois_ounces'], 31 doc='exact' 32) 33lb = pound = avoirdupois_pound = UnitMass( 34 'pound', 35 0.45359237*kg, 36 symbol='lb', 37 aliases=['pounds', 'avoirdupois_pound', 'avoirdupois_pounds'], 38 doc='exact' 39) 40st = stone = UnitMass( 41 'stone', 42 14*lb, 43 symbol='st', 44 doc='As defined in the UK, 1 stone = 14 avoirdupois pounds' 45) 46 47carat = UnitMass( 48 'carat', 49 200*mg, 50 aliases=['carats'] 51) 52gr = grain = UnitMass( 53 'grain', 54 64.79891*mg, 55 symbol='gr', 56 aliases=['grains'] 57) 58long_hundredweight = UnitMass( 59 'long_hundredweight', 60 112*lb, 61 aliases=['long_hundredweights'] 62) 63short_hundredweight = UnitMass( 64 'short_hundredweight', 65 100*lb, 66 aliases=['short_hundredweights'] 67) # cwt is used for both short and long hundredweight, so we wont use it 68t = metric_ton = tonne = UnitMass( 69 'tonne', 70 1000*kg, 71 symbol='t', 72 aliases=['tonnes'] 73) 74dwt = pennyweight = UnitMass( 75 'pennyweight', 76 24*gr, 77 symbol='dwt', 78 aliases=['pennyweights'] 79) 80slug = slugs = UnitMass( 81 'slug', 82 14.59390*kg, 83 aliases=['slugs'] 84) 85toz = troy_ounce = apounce = apothecary_ounce = UnitMass( 86 'troy_ounce', 87 480*gr, 88 symbol='toz', 89 u_symbol='℥', 90 aliases=[ 91 'apounce', 'apounces', 'apothecary_ounce', 'apothecary_ounces', 92 'troy_ounces' 93 ] 94) 95troy_pound = appound = apothecary_pound = UnitMass( 96 'troy_pound', 97 12*toz, 98 symbol='tlb', 99 u_symbol='℔', 100 aliases=[ 101 'troy_pounds', 'appound', 'appounds', 'apothecary_pound', 102 'apothecary_pounds' 103 ] 104) 105u = amu = atomic_mass_unit = dalton = Da = UnitMass( 106 'atomic_mass_unit', 107 1.660538782e-27*kg, 108 symbol='u', 109 aliases=['amu', 'Da', 'dalton'], 110 doc='relative uncertainty = 5e-8' 111) 112scruple = UnitMass( 113 'scruple', 114 20*gr, 115 u_symbol='℈', 116 aliases=['scruples'] 117) 118dr = dram = UnitMass( 119 'dram', 120 oz/16, 121 symbol='dr', 122 aliases=['drams'], 123 doc='avoirdupois dram' 124) 125drachm = apdram = UnitMass( 126 'drachm', 127 60*gr, 128 u_symbol=' ', 129 aliases=['drachms', 'apdram', 'apdrams'], 130 doc='also known as the apothecary dram' 131) 132 133bag = UnitMass( 134 'bag', 135 94*lb, 136 aliases=['bags'] 137) 138 139ton = short_ton = UnitMass( 140 'short_ton', 141 2000*lb, 142 aliases=['short_tons'] 143) 144long_ton = UnitMass( 145 'long_ton', 2240*lb, 146 aliases=['long_tons'] 147) # both long and short tons are referred to as "ton" so we wont use it 148 149############################################################ 150## Mass per unit length ## 151############################################################ 152 153denier = UnitQuantity( 154 'denier', 155 g/(9000*m), 156 aliases=['deniers'] 157) 158tex = UnitQuantity( 159 'tex', 160 g/(1000*m), 161 aliases=['texs'] 162) 163dtex = UnitQuantity( 164 'dtex', 165 g/(10000*m), 166 aliases=['dtexs'] 167) 168 169del UnitQuantity, m 170