from jhplot  import HPlot3D
from jhplot  import H2D,F2D
from java.util import Random

c1 = HPlot3D("Canvas",600,400)
c1.setNameX("X axis")
c1.setNameY("Y axis")
c1.setColorMode(4)
c1.visible(1)

h1 = H2D("My 2D Test 1",30,-3.0, 3.0, 30, -3.0, 3.0)
f1 = F2D("8*(x*x+y*y)", -3.0, 3.0, -3.0, 5.0)
rand = Random()
for i in range(10000):
               h1.fill(0.4*rand.nextGaussian(),rand.nextGaussian());
c1.draw(h1,f1);

# export to some image (png,eps,pdf,jpeg...)
c1.export(Editor.DocMasterName()+".png")

# jHepWork @S.Chekanov