Class: ADIWG::Mdtranslator::Writers::Iso19115_2::UnitsOfMeasure

Inherits:
Object
  • Object
show all
Defined in:
lib/adiwg/mdtranslator/writers/iso19115_2/classes/class_unitsOfMeasure.rb

Instance Method Summary collapse

Constructor Details

#initialize(xml, hResponseObj) ⇒ UnitsOfMeasure

Returns a new instance of UnitsOfMeasure.



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# File 'lib/adiwg/mdtranslator/writers/iso19115_2/classes/class_unitsOfMeasure.rb', line 19

def initialize(xml, hResponseObj)
   @xml = xml
   @hResponseObj = hResponseObj
end

Instance Method Details

#writeUnits(unit) ⇒ Object 



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# File 'lib/adiwg/mdtranslator/writers/iso19115_2/classes/class_unitsOfMeasure.rb', line 24

def writeUnits(unit)

   # define empty containers here to save lines of code
   # for base units
   hBase = {}
   hBase[:identifier] = ''
   hBase[:codeSpace] = 'http://www.bipm.org/en/si/'
   hBase[:name] = ''
   hBase[:catalogSymbol] = ''
   hBase[:unitsSystem] = 'base unit'

   # for conventional units
   hConvent = {}
   hConvent[:identifier] = ''
   hConvent[:codeSpace] = 'http://www.bipm.org/en/si/'
   hConvent[:name] = ''
   hConvent[:catalogSymbol] = ''
   hConvent[:preferredUnit] = ''
   hConvent[:factor] = nil
   hConvent[:a] = nil
   hConvent[:b] = nil
   hConvent[:c] = nil
   hConvent[:d] = nil

   # for derived units
   hDerived = {}
   hDerived[:identifier] = ''
   hDerived[:codeSpace] = ''
   hDerived[:name] = ''
   hDerived[:remarks] = ''
   hDerived[:catalogSymbol] = ''
   hDerived[:derivationUnitTerm] = nil

   # find matching units of measure
   case unit

      # angular degrees
   when 'deg', 'degree', 'degrees'
      hBase[:identifier] = 'degree'
      hBase[:codeSpace] = 'urn:ogc:def:uom:1.0'
      hBase[:name] = 'degree of arc'
      hBase[:catalogSymbol] = 'deg'
      hBase[:unitsSystem] = 'http://www.opengis.net/def/uom/OGC/1.0/degree'

      baseClass = BaseUnit.new(@xml, @hResponseObj)
      baseClass.writeXML(hBase)

   when 'm', 'meter', 'meters', 'metre'
      hBase[:identifier] = 'meter'
      hBase[:name] = 'meter'
      hBase[:catalogSymbol] = 'm'

      baseClass = BaseUnit.new(@xml, @hResponseObj)
      baseClass.writeXML(hBase)

   when 'kg', 'kilogram', 'kilograms'
      hBase[:identifier] = 'kilogram'
      hBase[:name] = 'kilogram'
      hBase[:catalogSymbol] = 'kg'

      baseClass = BaseUnit.new(@xml, @hResponseObj)
      baseClass.writeXML(hBase)

   when 's', 'second', 'seconds'
      hBase[:identifier] = 'second'
      hBase[:name] = 'second'
      hBase[:catalogSymbol] = 'd'

      baseClass = BaseUnit.new(@xml, @hResponseObj)
      baseClass.writeXML(hBase)

   when 'A', 'ampere', 'amperes'
      hBase[:identifier] = 'ampere'
      hBase[:name] = 'ampere'
      hBase[:catalogSymbol] = 'A'

      baseClass = BaseUnit.new(@xml, @hResponseObj)
      baseClass.writeXML(hBase)

   when 'K', 'kelvin'
      hBase[:identifier] = 'kelvin'
      hBase[:name] = 'kelvin'
      hBase[:catalogSymbol] = 'K'

      baseClass = BaseUnit.new(@xml, @hResponseObj)
      baseClass.writeXML(hBase)

   when 'mol', 'mole', 'moles'
      hBase[:identifier] = 'mole'
      hBase[:name] = 'mole'
      hBase[:catalogSymbol] = 'mol'

      baseClass = BaseUnit.new(@xml, @hResponseObj)
      baseClass.writeXML(hBase)

   when 'cd', 'candela', 'candelas'
      hBase[:identifier] = 'candela'
      hBase[:name] = 'candela'
      hBase[:catalogSymbol] = 'cd'

      baseClass = BaseUnit.new(@xml, @hResponseObj)
      baseClass.writeXML(hBase)

   when 'ft', 'foot', 'feet'
      hConvent[:identifier] = 'meter'
      hConvent[:name] = 'foot'
      hConvent[:catalogSymbol] = 'ft'
      hConvent[:preferredUnit] = 'meter'
      hConvent[:factor] = 3.280839

      convClass = ConventionalUnit.new(@xml, @hResponseObj)
      convClass.writeXML(hConvent)

   when 'in', 'inch', 'inches'
      hConvent[:identifier] = 'meter'
      hConvent[:name] = 'inch'
      hConvent[:catalogSymbol] = 'in'
      hConvent[:preferredUnit] = 'meter'
      hConvent[:factor] = 0.0254

      convClass = ConventionalUnit.new(@xml, @hResponseObj)
      convClass.writeXML(hConvent)

   when 'mm', 'millimeter', 'millimeters'
      hConvent[:identifier] = 'meter'
      hConvent[:name] = 'millimeter'
      hConvent[:catalogSymbol] = 'mm'
      hConvent[:preferredUnit] = 'meter'
      hConvent[:factor] = 0.001

      convClass = ConventionalUnit.new(@xml, @hResponseObj)
      convClass.writeXML(hConvent)

   when 'micrometer', 'micrometers'
      micro = "\u00b5"
      s = micro.encode('utf-8')
      s += 'm'
      hConvent[:identifier] = 'meter'
      hConvent[:name] = 'micrometer'
      hConvent[:catalogSymbol] = s
      hConvent[:preferredUnit] = 'meter'
      hConvent[:factor] = 0.000001

      convClass = ConventionalUnit.new(@xml, @hResponseObj)
      convClass.writeXML(hConvent)

   when 'nm', 'nanometer', 'nanometers'
      hConvent[:identifier] = 'meter'
      hConvent[:name] = 'nanometer'
      hConvent[:catalogSymbol] = 'nm'
      hConvent[:preferredUnit] = 'meter'
      hConvent[:factor] = 0.000000001

      convClass = ConventionalUnit.new(@xml, @hResponseObj)
      convClass.writeXML(hConvent)

   when 'degC', 'centigrade', 'degreesC', 'Celsius'
      hConvent[:identifier] = 'kelvin'
      hConvent[:name] = 'degree Celsius'
      hConvent[:catalogSymbol] = 'degC'
      hConvent[:preferredUnit] = 'kelvin'
      hConvent[:a] = 273.16
      hConvent[:b] = 1
      hConvent[:c] = 1
      hConvent[:d] = 0

      convClass = ConventionalUnit.new(@xml, @hResponseObj)
      convClass.writeXML(hConvent)

   when 'degF', 'degreesF', 'Fahrenheit'
      hConvent[:identifier] = 'kelvin'
      hConvent[:name] = 'degree Fahrenheit'
      hConvent[:catalogSymbol] = 'degF'
      hConvent[:preferredUnit] = 'kelvin'
      hConvent[:a] = 2298.44
      hConvent[:b] = 5
      hConvent[:c] = 9
      hConvent[:d] = 0

      convClass = ConventionalUnit.new(@xml, @hResponseObj)
      convClass.writeXML(hConvent)

   when 'mph', 'miles per hour'
      hConvent[:identifier] = 'mi/h'
      hConvent[:name] = 'miles per hour'
      hConvent[:catalogSymbol] = 'mph'
      hConvent[:preferredUnit] = 'm/s'
      hConvent[:a] = 0
      hConvent[:b] = 1609.344
      hConvent[:c] = 0
      hConvent[:d] = 3600.0

      convClass = ConventionalUnit.new(@xml, @hResponseObj)
      convClass.writeXML(hConvent)

   when 'kph', 'kilometers per hour'
      hConvent[:identifier] = 'k/h'
      hConvent[:name] = 'kilometers per hour'
      hConvent[:catalogSymbol] = 'kph'
      hConvent[:preferredUnit] = 'm/s'
      hConvent[:a] = 0
      hConvent[:b] = 1000
      hConvent[:c] = 0
      hConvent[:d] = 3600

      convClass = ConventionalUnit.new(@xml, @hResponseObj)
      convClass.writeXML(hConvent)

   when 'density'
      hDerived = {}
      hDerived[:identifier] = 'kg/m^3'
      hDerived[:name] = 'kilograms per cubic meter'
      hDerived[:remarks] = 'volumetric mass density'
      hDerived[:catalogSymbol] = 'p'
      unitTerms = []
      unitTerms << {'uom' => 'kg', 'exponent' => '1'}
      unitTerms << {'uom' => 'm', 'exponent' => '-3'}
      hDerived[:derivationUnitTerm] = unitTerms

      dervClass = DerivedUnit.new(@xml, @hResponseObj)
      dervClass.writeXML(hDerived)

   else
      defnClass = UnitDefinition.new(@xml, @hResponseObj)
      defnClass.writeXML(unit)

   end
end