Class: Fit::File::Definition::Field

Inherits:
BinData::Record
  • Object
show all
Defined in:
lib/fit/file/definition.rb

Instance Method Summary collapse

Instance Method Details

#data ⇒ Object 



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# File 'lib/fit/file/definition.rb', line 14

def data
  @data ||= Definitions.get_field(parent.parent.global_message_number.snapshot,
                                  field_definition_number.snapshot) ||
              { :name => "field_#{field_definition_number.snapshot}", :scale => nil }
end

#dyn_data ⇒ Object 



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# File 'lib/fit/file/definition.rb', line 20

def dyn_data
  @dyn_data ||= Definitions.get_dynamic_fields(parent.parent.global_message_number.snapshot,
                                               field_definition_number.snapshot)
end

#length ⇒ Object

return the length in byte of the given type



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# File 'lib/fit/file/definition.rb', line 87

def length
  @length
end

#name ⇒ Object 



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# File 'lib/fit/file/definition.rb', line 25

def name
  data[:name]
end

#raw_name ⇒ Object 



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# File 'lib/fit/file/definition.rb', line 29

def raw_name
  "raw_#{name}"
end

#real_type ⇒ Object 



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# File 'lib/fit/file/definition.rb', line 37

def real_type
  data[:type]
end

#scale ⇒ Object 



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# File 'lib/fit/file/definition.rb', line 33

def scale
  data[:scale]
end

#size ⇒ Object

field_size is in byte



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# File 'lib/fit/file/definition.rb', line 82

def size
  field_size
end

#type ⇒ Object 



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# File 'lib/fit/file/definition.rb', line 41

def type
  case base_type_number.snapshot
  when 0 # enum
    build_int_type 8, false
  when 1
    build_int_type 8, true
  when 2
    build_int_type 8, false
  when 3
    build_int_type 16, true
  when 4
    build_int_type 16, false
  when 5
    build_int_type 32, true
  when 6
    build_int_type 32, false
  when 7
    # some cases found where string has the max field length
    # and is therefore not null terminated
    @length = 1
    "string"
  when 8
    @length = 4
    "float"
  when 9
    @length = 8
    "double"
  when 10 # uint8z
    build_int_type 8, false
  when 11 # uint16z
    build_int_type 16, false
  when 12 # uint32z
    build_int_type 32, false
  when 13 # array of bytes
    build_int_type 8, false
  else
    raise "Can't map base_type_number #{base_type_number} to a data type"
  end
end