#!/usr/bin/ruby

require "numru/dcl"
require "numru/ggraph"
include NumRu

gp = GPhys::NetCDF_IO.open('air.mon.mean.nc', 'air')

# draw a figure
#   "display number" : 1 for monitor
#                    : 2 for pdf file
iws = 1
DCL.gropn( iws )                                   # open a device
DCL.sgpset('lcntl', false)
itr = 1
GGraph.set_fig('itr'=>itr)
GGraph.set_fig('viewport'=>[0.2,0.9,0.2,0.9])
GGraph.set_fig('window'=>[0.0, 360.0, -90.0, 90.0])
GGraph.tone( gp, true )
GGraph.contour( gp, false )

DCL.grcls