[OpenLayers-Users] lat lng from tile

[Chris Adams]

resolution = latLongSize/pixelSize

so if your tile is 300 by 300, and you want this zoom level to exactly 
fit each tile within 2.56 degrees then,

res = 2.56/300
res = 0.008533333

Kenny France wrote:
> Hi Guys,
>  
> I am busy with my first OpenLayers App, and have run into a question,
> I hope someone out there has a answer for me :(
>  
> I was looking at the docs, and i think i need to use the resoloution 
> function, but i can get it to work somehow :(
>  
> Lets say I have a tiles, 300 x 300 px
>  
> at Zoom level 1 this equates to 5.12 (Decimal degrees) so 300 = 5.12
> at Zoom level 2 this equates to 2.56 (Decimal degrees) so 300px = 2.56
> etc...
>  
> Is it possible to do set the scale like that ?
>  
> also at min zoom i want to only show a certain area, can i somehow add 
> top left co-ordinates, bottom right ?
>  
> thanks for you help
>  
> K-
>  
>  
>
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