[Mapserver-users] mapscript: removing layer from MapObj

[David Fawcett]

Could you achieve the same effect by setting LAYER STATUS to OFF?

David.

David J. Fawcett
MN Office of Environmental Assistance

>>> Christoph Spoerri <spoerri at duke.edu> 10/28/2003 8:20:39 AM >>>
Hi,

I searched the mailing list and the web but didn't find a good way to
remove 
an existing layer from a MapObj (I'm using PHP mapscripts).

What I'm trying to accomplish: I have a map with multiple layers on it.
I 
would like to store this object in a session, so that it can be
retrieved 
again the next time a user sends a request (e.g. zooming in). One of
those 
requests is to remove one or more layers from the map, yet in order to
do 
this I would like to have a function/method similar to 
MapObj::removeLayer(LayerIndex). Anyway to accomplish this in such a
fashion?

I know, I could work with a basic mapfile and then just add the
necessary 
layers, but this is rather 'backwards' in my opinion and requires me to
keep 
track of existing layers and a bunch of other variables (I actually
wrote a 
few classes that to that).

Also, I took a look at the mapscript source code, and it seems that 
implementing a removeLayer() method shouldn't be to hard (I wouldn't
mind 
taking a stab at it). Or do I miss something?

Thanks for your help,
Christoph

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