[mapserver-users] Map data strategy

[Brent Fraser]

Paul,

   Have a read regarding TILEINDEXes 
(http://mapserver.org/optimization/tileindex.html).  It may be useful to 
have one TILEINDEX (and one layer) per scale group (so a total of 6 
layers).  The TILEINDEX will provide a spatial limitation [min/max x/y] 
per file.

Best Regards,
Brent Fraser

On 6/24/2014 11:36 PM, Malm Paul wrote:
>
> Hi,
>
> I've just started using Mapserver and have a question, that could help 
> me to cut corners.
>
> 1)I have a lot of S57 charts in different scale groups 1-6.
>
> 2)It should be simple to maintain the map data (a lot of upgrades).
>
> 3)Of course, it should be fast.
>
> Strategy of today:
>
> I have the original data stored in the original format on ram disk. I 
> have one map file that INCLUDEs all "layer" files (one per chart).
>
> The layer files defines the all the interesting chart features 
> (layers) and the max scale.
>
> I was thinking that I only shall use max scale, not min scale, because 
> if I don't have a chart with a larger scale a certain position when I 
> zoom in, then I shall at least see a chart. Even if has a to small 
> scale for this zoom. I don't have any spatial restrictions on each 
> layer or layer file, just for the map file -90, -180, 90, 180 (i.e no 
> limits)
>
> Is it possible to have spatial limitations on a layer?
>
> When I use this strategy the map server chokes then I zoom in too much.
>
> I can see that the map configuration could be done in a lot of 
> different ways,
>
> How would your strategy be?
>
> Kind regards,
>
> Paul
>
>
>
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