[OSM-dev] Slippy map and zoom

Tom Hughes tom at compton.nu
Thu Feb 14 13:06:32 GMT 2008

In message <Pine.LNX.4.64.0802141201220.13951 at localhost.localdomain>
        Lars Aronsson <lars at aronsson.se> wrote:

> When I use the scroll wheel to zoom in and out of the slippy map, 
> whether on www.openstreetmap.org, maps.yahoo.com, or 
> maps.google.com, the screen goes blank for a short while before 
> the tiles of the new zoom level arrive.  At Google Maps, some red 
> corners move about showing whether I'm zooming in or out.
> Would it be possible, in JavaScript, to show the existing tiles, 
> rescaled by the browser, until the new tiles arrive?

When OpenLayers can do that, then yes we will do it. As it happens
that is going to be in the next release I believe.

> If this was possible, I guess the browser could also emulate finer 
> grades (half-levels) of zooming.  It would make for a less bumpy 
> user experience.

That is also something that the next release of OL is expected to
be able to do I believe.


Tom Hughes (tom at compton.nu)

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