[OpenLayers-Users] Openlayers - tilecache and overlay problem

[Tim Schaub]

> > But when I do the same with WMSC from tilecache, and check the 
> > corresponding layer in openlayer's overlay list, I only have broken 
> > images. Same result if I create the WMS layer without transparency, 
> > and try this just after creation :
> > wmsc_layer.setIsBaseLayer(false);
> 
> I think Tim Schaub spent some time looking at it, and has 
> given us a few patches for it -- Tim, can you comment on if 
> these patches had actually fixed the issue for you? or were 
> you just using reproject=false?

I think there are a few issues collaborating here.  In the simple case where
you have an odd sized viewport, the patch I posted for ticket #429 seems to
take care of it (http://trac.openlayers.org/ticket/429).

However, the problem still shows up with map resizing.

I haven't taken more time to look into it.  Until it has been solved, I'm
constructing all WMS layers that don't need to be reprojected with
reproject: false

  var options = {isBaseLayer: false, reproject: false};
  var overlay = new OpenLayers.Layer.WMS(title, url, params, options);


Tim