[ka-Map-users] Scale to viewport

David Bitner osgis.lists at gmail.com
Tue Jan 24 11:39:38 EST 2006

The scale factors are fixed so that ka-map can cache tiles (both on
the server and the client).  For each scale factor ka-map creates a
directory on the web server, within each directory there are tiles of
whatever width/height you defined in your config file.  This enables
ka-map to quickly grab a tile without doing any real server
processing.  This also allows a web browser to cache the individual
requests at the client side.

On 1/24/06, David Badke <dbadke at uvic.ca> wrote:
> Thanks for your responses - I get it now! I will add the necessary scale
> factors.
> I still have a related question: why are the scale factors fixed as they
> are (that is, in the map array)? Is this a design choice, a requirement,
> or what? Not that I am saying it is bad, I just don't understand the why
> of it...
> David
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> ka-Map-users at lists.maptools.org
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