[Tilecache] Estimating disk space requirements

[David R Robison]

Could you give me the formula for calculating the number of tiles? Also, 
do you have any tips about format/compression/metadata? TNX David

Björn Harrtell wrote:
> You can calculate the number of tiles exactly (obviously) but the 
> problem is the actual tile image sizes will depend on what kind of map 
> you have... blank/ocean areas and photographic imagery beeing the most 
> important factors. That's why optimizing the image output 
> (format/compression/metadata) from your mapserver is quite important. 
> What you could do is try to determine what the largest tile image 
> would be and use that multiplied number of tiles as the estimated 
> maximum size for the cache.
>
> /Björn
>
> On Feb 5, 2008 10:58 PM, David R Robison 
> <drrobison at openroadsconsulting.com 
> <mailto:drrobison at openroadsconsulting.com>> wrote:
>
>     Is there a simple formula for estimating the disk space
>     requirements for
>     the tile cache? Thanks, David
>
>     --
>
>     David R Robison
>     Open Roads Consulting, Inc.
>     708 S. Battlefield Blvd., Chesapeake, VA 23322
>     phone: (757) 546-3401
>     e-mail: drrobison at openroadsconsulting.com
>     <mailto:drrobison at openroadsconsulting.com>
>     web: http://openroadsconsulting.com
>     blog: http://therobe.blogspot.com
>     book: http://www.xulonpress.com/book_detail.php?id=2579
>
>
>
>
>
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-- 

David R Robison
Open Roads Consulting, Inc.
708 S. Battlefield Blvd., Chesapeake, VA 23322
phone: (757) 546-3401
e-mail: drrobison at openroadsconsulting.com
web: http://openroadsconsulting.com
blog: http://therobe.blogspot.com
book: http://www.xulonpress.com/book_detail.php?id=2579

 

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