Jeff,
yes it works, the unique constraint is to put the image when we create the 
basemap instance.

Le jeudi 28 février 2008, Jeff Whitaker a écrit :
> Lionel Roubeyrie wrote:
> > Hi Jeff,
> > yes I see this method, but set_xlim and set_ylim use axes coordinates,
> > and I would like to use geographic coordinates.
> > It would be great if we could put an image in a map directly by
> > specifying its geographic coordinates
>
> Lionel:  There's no way to do that - but it's pretty easy to convert to
> geographic to map (axes) coordinates using the Basemap instance __call__
> method.  So, if m is the Basemap instance, you can do something like
>
> x1,y1 = m(lon1,lon1)
> x2,y2 = m(lon2,lat2)
> ax.set_ylim(y1,y2)
> ax.set_xlim(x1,x2)
>
> -Jeff
>
> > Le mardi 26 février 2008, Jeff Whitaker a écrit :
> >> Lionel Roubeyrie wrote:
> >>> Hi all,
> >>> I'm sure it's a trivial question, but can't find any valid answer in
> >>> the basemap examples directory or with google : I have a georeferenced
> >>> TIFF file in 'lcc' projection, representing a little portion of France,
> >>> and I need to put it on a map, resets map limits to a closed portion of
> >>> the map, and put contours on it. I see how to initialise Basemap with
> >>> the limits of the raster, but not how to "make a zoom" in the map by
> >>> specifing coordinates. Thanks for your help
> >>
> >> Lionel:  You can use the set_xlim and set_ylim axes methods to manually
> >> 'zoom' the plot.  It has to be done after all the other plotting though,
> >> since all the Basemap methods (contour, imshow etc) will reset the axes
> >> limits to show the entire map region.
> >>
> >> -Jeff



-- 
Lionel Roubeyrie - [EMAIL PROTECTED]
Chargé d'études et de maintenance
LIMAIR - la Surveillance de l'Air en Limousin
http://www.limair.asso.fr


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