import pylab,numpy

from numpy import array,arange,pi,cos,sin
from pylab import rcParams


rcParams["figure.subplot.bottom"]=0
rcParams["figure.subplot.top"]=1
rcParams["figure.subplot.left"]=0
rcParams["figure.subplot.right"]=1
pylab.close("all")

x=arange(0,2*pi,0.1)
pylab.plot(x,sin(x))

pylab.savefig("visible-area-tk.png")
pylab.savefig("visible-area-tk.pdf",dpi=72)