from java.io    import File        # standard Java import
from java.lang  import Math

from jfig.utils import Array       # several array utilities
from jfig.utils import MHG         # the plot functions


m = MHG()                          # initalize the plot library
m.figure();                        # new plot window
m.reshape( [0.0, 0.5, 0.0, 0.5] )  # [xl,xr,yb,yt] fraction of screen

W = 30
H = 40 
m.gca().setTrafo( 0, W, 0, H )
m.colormap( 'jet' )
ncols = m.numberOfColors()-1

pixels = Array.izeros( H, W )
for i in range( H ):
  for j in range( W ):
    tmp = 0.4*i/H + 0.4*j/W + 0.2*Math.random()
    pixels[i][j] = int( ncols*tmp )

m.image( pixels )
m.plotCartesianAxes()
m.plotGrid()
m.colorbar( 'EastOutside' )
m.doZoomFit()



m.save( File( 'demo3.fig' ))