Limiting the viewable extent...

[Steve Lime]

Daniel is correct, there is no limiting extent for the CGI or WMS
servers. I think the keyword
is even there in the WEB object but there's no code to enforce it. A
5.0 enhancement (if someone
writes a bug report)... Sorry.

Steve

>>> Daniel Morissette <dmorissette at MAPGEARS.COM> 10/31/2006 12:20:47 PM
>>>
In MapScript, the mapObj methods zoomPoint() and zoomRectangle() take a

maximum extent for that purpose, but I don't think there is any way to

set a limit on extents in the mapfile directly that would apply to the

mapserv CGI and WMS interfaces.

Daniel

Stephen Woodbridge wrote:
> Steve,
> 
> I may be confusing this with a feature of ka-map, but I'm not sure. 
> Steve L do you know if there is such a feature in mapserver?
> 
> -Steve W
> 
> ps: lots of Steve is confusing!
> 
> Steve Hall wrote:
>> Stephen Woodbridge wrote:
>>> 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.
>>>
>> Thanks for this Steve, do you happen to know off hand any of the 
>> relevant keywords to this problem (to get me started).  I could take
a 
>> look through the code and dig deeper if I have somewhere to start.  

>> This will also enable me to file a more accurate and useful bug...
>>
>> Cheers,
>> Steve H


-- 
Daniel Morissette
http://www.mapgears.com/