[OpenLayers-Users] Reloading broken tiles?

Gregor Mosheh gregor at hostgis.com
Sun Jul 8 12:54:11 EDT 2007


Christopher Schmidt wrote:
> OpenLayers only sets the 'src' attribute of an image tag -- nothing
> more. When images don't load, they don't load because the browser
> decided not to load them -- I have no idea why this happens. The
> IMAGE_RELOAD_ATTEMPTS is the only way I know of to fix this, and I have
> no idea why this wouldn't work.

Yeah; even Google Maps does this now and then. No sweat, but I do have 
some other applications for such functionality.

Does there exist a method that orders OpenLayers to refresh the current 
map view, re-download all tiles for the current viewport, or for a 
specific layer?

A real-world use comes to mind when using dynamic data, e.g. having 
added a new point to a database via some PHP script, I'd like to redraw 
the WMS layer without my reloading the entire page and losing my place. 
I don't see documentation of a .redraw() method, for example, on the 
Layer or Map objects, so I take it the answer is No here?

-- 
Gregor Mosheh / Greg Allensworth
System Administrator, HostGIS cartographic development & hosting services
http://www.HostGIS.com/

"Remember that no one cares if you can back up,
  only if you can restore." - AMANDA



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