Class: Numeric

Inherits:
Object
  • Object
show all
Defined in:
lib/numeric/numeric_units.rb

Overview

This file extends the Numeric class to provide simple utility for unit conversions. To properly use these extenstions, default units will/should be used:

> MASS = kilograms

> DISTANCE/MEASUREMENT = meters

> TIME = seconds

> VOLUME = fluid ounces

So, calling 3.pounds will return 1.36077711, which is the value converted to the base unit of kilograms.

When retrieving the values, you can call one of the to(unit) methods.

> 5.km.to(:miles) -> 3.10685596118667

whereas

> 5.km -> 5000 (meters)

Instance Method Summary collapse

Instance Method Details

#centimeters ⇒ Object Also known as: cm, centimeter 



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# File 'lib/numeric/numeric_units.rb', line 64

def centimeters
  self * 0.01.meters
end

#cup ⇒ Object Also known as: cups 



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# File 'lib/numeric/numeric_units.rb', line 145

def cup
  self * 8.fl_oz
end

#feet ⇒ Object Also known as: ft, foot 



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# File 'lib/numeric/numeric_units.rb', line 70

def feet
  self * 0.3048.meters
end

#fluid_ounce ⇒ Object Also known as: fluid_ounces, fl_oz

VOLUME #####



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# File 'lib/numeric/numeric_units.rb', line 127

def fluid_ounce
  self
end

#hours ⇒ Object Also known as: hr, hrs, hour 



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# File 'lib/numeric/numeric_units.rb', line 117

def hours
  self * 60.minutes
end

#inches ⇒ Object Also known as: in, inch 



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# File 'lib/numeric/numeric_units.rb', line 76

def inches
  self * 0.0254.meters
end

#kilograms ⇒ Object Also known as: kilogram, kg, kgs

MASS #####



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# File 'lib/numeric/numeric_units.rb', line 19

def kilograms
  self
end

#kilometers ⇒ Object Also known as: km, kilometer 



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# File 'lib/numeric/numeric_units.rb', line 94

def kilometers
  self * 1000.meters
end

#meters ⇒ Object Also known as: m, meter

DISTANCE/MEASUREMENTS/LENGTH #####



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# File 'lib/numeric/numeric_units.rb', line 52

def meters
  self
end

#miles ⇒ Object Also known as: mi, mile 



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# File 'lib/numeric/numeric_units.rb', line 88

def miles
  self * 1609.344.meters
end

#millimeters ⇒ Object Also known as: mm, millimeter 



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# File 'lib/numeric/numeric_units.rb', line 58

def millimeters
  self * 0.001.meters
end

#minutes ⇒ Object Also known as: min, minute, mins 



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# File 'lib/numeric/numeric_units.rb', line 110

def minutes
  self * 60.seconds
end

#ounce ⇒ Object Also known as: oz, ounces 



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# File 'lib/numeric/numeric_units.rb', line 33

def ounce
  self * 0.0283495231.kilograms
end

#pint ⇒ Object Also known as: pints, pt 



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# File 'lib/numeric/numeric_units.rb', line 150

def pint
  self * 16.fl_oz
end

#pounds ⇒ Object Also known as: pound, lb, lbs 



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# File 'lib/numeric/numeric_units.rb', line 26

def pounds
  self * 0.45359237.kilograms
end

#quart ⇒ Object Also known as: quarts, qt 



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# File 'lib/numeric/numeric_units.rb', line 156

def quart
  self * 16.fl_oz
end

#seconds ⇒ Object Also known as: second, secs, sec

TIME ####



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# File 'lib/numeric/numeric_units.rb', line 103

def seconds
  self
end

#stone ⇒ Object Also known as: stones 



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# File 'lib/numeric/numeric_units.rb', line 39

def stone
  self * 6.35029318.kilograms
end

#tablespoon ⇒ Object Also known as: tablespoons, tbsp 



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# File 'lib/numeric/numeric_units.rb', line 139

def tablespoon
  self * 0.5.fl_oz
end

#teaspoon ⇒ Object Also known as: teaspoons, tsp 



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# File 'lib/numeric/numeric_units.rb', line 133

def teaspoon
  self * (1.0/6.0)
end

#to(unit) ⇒ Object

Call using something like to(:pounds)



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# File 'lib/numeric/numeric_units.rb', line 163

def to(unit)
  self / 1.send(unit)
end

#ton ⇒ Object Also known as: tons 



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# File 'lib/numeric/numeric_units.rb', line 44

def ton
  self * 907.18474.kilograms
end

#yards ⇒ Object Also known as: yd, yard 



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# File 'lib/numeric/numeric_units.rb', line 82

def yards
  self * 3.feet
end