[OpenLayers-Users] wms untiled 'busy loading' message or image

[Josh Livni]

It seems to me that it's still possible, with a tilesize far great than 
the viewport size, you may end up loading 4 tiles.  Such as if you 
happened to be looking at an area where four (very large) tiles came 
together. 

I may well be missing something obvious though (including, at the very 
least, why it's important to only load exactly one tile).

  -Josh


Erik Uzureau wrote:
> Good answer Tim.
>
> Does that make sense, Trond?
>
>
> If you set the buffer to 0, then OL wont pre-load any tiles that are
> outside the bounds of the viewport of the map.... therefore, if you
> set a tile size that is bigger than the viewport, you will always only
> be loading one tile... and since you're still in normal gridded mode,
> you will be snapping to grid and benefit from cacheing.
>
>
>
> On 7/10/07, Tim Schaub <noreply at geocartic.com> wrote:
>   
>> Trond Michelsen wrote:
>>     
>>> On Tue, Jul 10, 2007 at 11:23:29AM -0500, Erik Uzureau wrote:
>>>       
>>>> :-) So the good news is that the essential part of the patch that I'm
>>>> working on is to bring the Gridded and Untiled layers back together.
>>>>
>>>> Instead of declaring your layer as OpenLayers.WMS.Untiled, you will
>>>> simply declare it OpenLayers.WMS and pass it an option { singleTile:
>>>> true }
>>>>         
>>> Great news.
>>>
>>> One thing, though :)
>>>
>>> Would it be possible to make the singletile-version have a "snap to
>>> grid"-functionality, so that even the singletiles can be cached?
>>>
>>>       
>> Try a layer with a very big tile size and zero buffer if you want to
>> cache big tiles.
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