[OpenLayers-Users] Suppressing layers from being loaded

[Jeff Yutzler]

To answer your question, the problem only occurred on initial load.  I 
was originally using setVisibility(false) and went to setting the 
visibility directly after I identified a problem.  However, hold off on 
this until I can provide a simplified test case.  My first attempt to 
create one failed to reproduce the problem.  This has me requestioning 
my assumptions.


Christopher Schmidt wrote:
> On Wed, Oct 31, 2007 at 04:55:05PM -0400, Jeff Yutzler wrote:
>   
>> I have a Layer that renders feature data from a richly populated 
>> datastore.  The problem is that at large scale, a Get Image operation is 
>> expensive but I can't seem to prevent the Get Image operation from 
>> occurring.  In an attempt to avoid the problem, I set {visibility: 
>> false} in the options when I instantiate the layer object, but this had 
>> no effect.  I have confirmed that the parameter has made its way to 
>> div.style.display = "none".  However, I see that Firefox is still 
>> attempting to load the image.  This is bad.  (FWIW, this layer extends 
>> Grid, but this problem would presumably occur on any layer type.)
>>     
>
> What happens if you do setVisibility(false); instead of setting the
> visibility yourself?
>
> Does it continue to load as you change zooms more than once? 
>
> It's possible this is part of an already-reported bug, or possibly a new
> bug report I'm not yet aware of.
>
> Regards,
>   
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