# File lib/blueprint/grid_builder.rb, line 23
    def initialize(options={})
      @able_to_generate = Magick::Long_version rescue false
      return unless @able_to_generate
      @column_width = options[:column_width] || Blueprint::COLUMN_WIDTH
      @gutter_width = options[:gutter_width] || Blueprint::GUTTER_WIDTH
      @output_path  = options[:output_path]  || Blueprint::SOURCE_PATH
    end