map extent

[Matthew Lock]

Why don't you just add all the layers into the map and use zoom layering to
decide which layer the user sees based on the current extent?


boice tomlin wrote:
> 
> 
> Hello,
> 
> I have a few different shape files at different resolutions that I  
> want to load based on the extent of the map the user is viewing.
> 
> So if they are viewing the entire country for instance I want to load  
> in my low resolution data set.
> 
> The problem I'm having is that if a user zooms in on the map I have  
> to create the map object using the map file which specifies which  
> shapefile I am using, then use phpmapscript to zoom in, and then  
> retrieve the extent using phpmapscript functions.  This obviously  
> doesn't help me load in the appropriate shapefile because I have to  
> create the map object in order to do any of the previous steps.  A  
> bit of a paradox - load in the shapefile only to find out that I  
> might have wanted to use a different shapefile...
> 
> So the short question is how can I zoom in and get the extent before  
> loading the shapefile?
> 
> thanks,
> 
> boice
> 
> 
> ////////////////////////////
> Run Skip
> http://runskip.com/
> 
> boice tomlin
> 
> boice at runskip.com
> 
> 503-528-6204
> 
> 
> 
> 

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