Limiting the viewable extent...

[Stephen Woodbridge]

Steve Hall wrote:
> Hi all,
> 
> Is it possible to restrict the users viewable extent of the map through 
> the map file?  For example, I have data loaded for the whole of the 
> country but I want it to be impossible for any client tool to view data 
> beyond a defined and fixed extent.
> 
> The EXTENT parameters just seem to set the initial extent and you can 
> easily zoom out beyond this extent.
> 
> I appreciate this is fairly easy to do through code but though that if 
> this was possible via a mapfile then it would be done at the 'lowest' 
> level...

Yes, I believe you can do it by setting METADATA values for the MAP 
object. I just check the mapfile reference and it is not described 
there. Could you please write a documentation bug to request all 
METADATA controls be documented.

-Steve W.