Class: CMORizer::Step::AUTO_CONVERT_UNIT

Inherits:
IndividualBaseStep show all
Defined in:
lib/step.rb

Instance Attribute Summary

Attributes inherited from BaseStep

#forbid_inplace, #initial_prefix, #needs_to_run, #resultpath

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from IndividualBaseStep

#can_process?

Methods inherited from BaseStep

#add_input, #create_outpath, #initialize, #set_info, #truncate_string

Constructor Details

This class inherits a constructor from CMORizer::Step::BaseStep

Class Method Details

.auto_convert_unit_possible?(from_unit, to_unit) ⇒ Boolean

Returns:

  • (Boolean)
[View source]

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# File 'lib/step.rb', line 191

def self.auto_convert_unit_possible?(from_unit, to_unit)
  begin
    AUTO_CONVERT_UNIT.convert_unit_commands(from_unit, to_unit)
  rescue RuntimeError => e
    return false
  end
  
  return true
end

.convert_unit_commands(from_unit, to_unit) ⇒ Object

[View source]

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# File 'lib/step.rb', line 202

def self.convert_unit_commands(from_unit, to_unit)
  cmds = []

  if(from_unit != to_unit)
    case [from_unit, to_unit]
    when ["psu", "0.001"] # noop
    when ["psu2", "1e-06"] # noop
    when ["W/m^2", "W m-2"] # noop
    when ["1.0", "1"] # noop
    when ["1", "%"]
      cmds << CDO_MULC_cmd.new(100)
    when ["1.0", "%"]
      cmds << CDO_MULC_cmd.new(100)
    when ["K", "degC"]
      cmds << CDO_SUBC_cmd.new(-273.15)
    else
      raise "can not automatically convert unit from '#{from_unit}' to '#{to_unit}'"
    end          
  end
  
  cmds
end

Instance Method Details

#file_commands ⇒ Object

[View source]

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# File 'lib/step.rb', line 226

def file_commands
  cmds = AUTO_CONVERT_UNIT.convert_unit_commands(@fesom_unit, @out_unit)
  unless cmds.empty?
    # apply unit
    # assume the APPLY_LOCAL_ATTRIBUTES Step will be executed later
    # and thus our variable has still the original name (@fesom_variable_name)
    cmds << NCATTED_SET_VARIABLE_UNITS_cmd.new(@fesom_variable_name, @out_unit)
  end
  
  cmds
end