Window and position of figure

[jorge.conforte at inpe.br]

Hi, 

I already use the IDL software. Now I`m using Python. In IDL I
havethe vector position=(xo,yo,x1,y1) to set where Iwnat to plot my
figure in my window. 

I have an 2d array with x and y dimensition equal
5224. when I plot my figure, using contourtf it takes up a small part of
my window. What can I do to have 

my figure occupy a larger area in my
window.

Thanks,

Conrado