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module Axlsx
# An axis data source that can contain referenced or literal strings or numbers
# @note only string data types are supported - mainly because we have not implemented a chart type that requires a numerical axis value
class AxDataSource < NumDataSource
# creates a new NumDataSource object
# @option options [Array] data An array of Cells or Numeric objects
# @option options [Symbol] tag_name see tag_name
def initialize(options={})
@tag_name = :cat
@data_type = StrData
@ref_tag_name = :strRef
super(options)
end
# allowed element tag names for serialization
# @return [Array]
def self.allowed_tag_names
[:xVal, :cat]
end
end
end
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