# draw 1OOO-day averages of the zonal mean temperature
#
# 更新履歴
# 
# 2009/03/29  納多 哲史   新規作成
# 

def help()
  print "Usage: ruby ",$0," file varname\n"
end

require "numru/ggraph"
include NumRu

# 引数のチェック
if ARGV[0] == "-h" or ARGV[0] == "--help" then
  help()
  exit 0
elsif ARGV.length != 2 then
  puts "ERROR: The number of argument is invalid."
  help()
  exit 1
end

file = ARGV[0]
varname = ARGV[1]

if !FileTest.file?(file) then
  puts "ERROR: No such file."
  exit 2
end

gphys = GPhys::IO.open(file, varname)
gphys = gphys.cut('time'=>200..1200)
gphys = gphys.mean('lon', 'time')

DCL.gropn(2)

GGraph.set_fig('viewport'=>[0.15,0.80,0.15,0.6])

DCL.sgpset('lfull',true)     # 全画面表示
DCL.sgpset('lcntl', false) ; DCL.uzfact(0.6)

GGraph.set_linear_contour_options('interval'=>5)
GGraph.contour(gphys)

DCL.grcls