Hi Mario,
sorry for coming late (and reading only half because of being busy),
but perhaps I can give some hint.

> i have find out the way to get a CRS, so my code seems like this:
>
> ViewportModel viewport = map.getViewportModelInternal();
>
> CoordinateReferenceSystem crs = DefaultGeographicCRS.WGS84;

This should be the one of the active map?

ApplicationGIS.getActiveMap().getViewportModel().getCRS()

>
> viewport.setCRS(crs);
>
> viewport.setBounds(80.9, 156.3, -15.0, 15.0);
>
> map.setViewportModelInternal(viewport);
>
>
>
> But something wrong happens and the map its out of position...

That could be the crs.

Anyway, there are navigation commands to move around:

http://udig.refractions.net/confluence/display/DEV/2+NavCommand+Example


Hope this helps,
Ciao
Andrea


>
> Any idea?
>
> Thank you
>
> regards
>
>
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