FloatCanvas in a wxpython application.... layout problems

[nelson -]

Hi all,
 i'm developing an application that uses Floatcanvas to diplay a
cartesian plane. how can i embed it into a "complex" layout?

I have this controls


MENUS
TOOLBAR
NOTEBOOK
FLOATCANVAS
PYSHELL

The problem is that i can show all the components but i can't insert
the floatcanvas in the right position... it is'n displaied... can
annyone give me an example of use of floatcanvas in an application
with more than one panel...

thanks a lot!

nelson