[OSM-dev] OpenStreetMap

Tom Hughes tom at compton.nu
Tue Nov 20 08:29:19 GMT 2007


In message <47426F2A.60505 at graphicsoptimization.com>
        Derek Tonn <datonn at graphicsoptimization.com> wrote:

> I have been looking for a ".png" equivalent to Zoomify for quite a
> while now that I could use to display maps on the web...and since you
> are doing that very thing with OSM, I figured I would ask you for any
> advice you might have that could lead me to the ability to create
> solid "zoom" effects outside of the Zoomify interface.

Well I'm not familiar with Zoomify but if it does what I think it
does (animating the effect of zooming the map in and out) then the
next version of OpenLayers (the map viewer we use) is expected to
include technology to do such effects.

There's an example kicking around on the web somewhere that Christopher
will probably be able to point you at, but basically it does an immediate
redisplay by scaling the original tiles (either in one jump or as an
animated zoom) and then loads the new tiles to replace the zoomed image.

Tom

-- 
Tom Hughes (tom at compton.nu)
http://www.compton.nu/




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