SettRaziel/ruby_visualization

module DataOutput

  # Simple data output for the terminal visualization and a dataset
  class SingleOutput < DatasetOutput

    # method to visualize the dataset at the index
    # @param [DataSeries] data_series the data series which should be visualized
    # @param [VisMetaData] meta_data the corresponding meta data
    # @param [Hash] options hash with the boolean values for extreme values and
    #   extended legend output
    def initialize(data_series, meta_data, options)
      @meta_data = meta_data
      set_attributes(data_series.series[options[:index]],
                     options[:extreme_values])
      @legend = ColorLegend::ColorData.
                             new(data_series.min_value, data_series.max_value)

      print_output_head(options[:index])
      print_data(options[:legend], @meta_data.domain_x, @meta_data.domain_y)
    end

    private

    # creates a headline before printing the data set based on the values
    # of the z dimension
    # @param [Integer] index the number of the dataset
    def print_output_head(index)
      puts "\nPrinting dataset for %.2f" %
            (@meta_data.domain_z.lower + (index * @meta_data.domain_z.step))
      puts "\n"
    end

    # method to print additional information before the x and y
    # domain informations
    def print_meta_head
        puts "\nDataset: #{@meta_data.name}"
    end

    # method to print additional information after the x and y
    # domain informations
    def print_meta_tail
      if (@meta_data.domain_z != nil)
        print_domain_information(@meta_data.domain_z, "Z")
      end
    end

  end

end