def self.str_to_dec str
    tok = str.split "-"
    if tok.size == 3
      g,p,s = tok.map{|m| m.to_f}
      return g + (p/60) + (s/3600)
    elsif tok.size == 2
      return tok.join('.').to_f
    elsif tok.size == 4
      #41-44-62-200
      return "#{tok[0]}.#{tok[1..-1].join}".to_f
    end
    puts "Err: #{str}"
    nil
  end