[mapserver-users] Re: WMS and tiles cutting off

[Adam Eskreis]

Ok, I just gave an untiled layer a try, unfortunately though, due to the
large amount of symbols being displayed on the screen, there is about a 2
second delay every time the map is panned.  My client will most certainly
find this unacceptable.  I have tried using smaller images, but I cannot
sacrifice any more quality.  I believe my database query to be as optimized
as it can be (has about 50 ms runtime, I honestly don't think I can get it
any lower than that).

If these are the only options, is there something else besides WMS that you
all would recommend using to solve this issue?

Thanks,
-Adam

On Thu, Apr 29, 2010 at 2:54 PM, Lime, Steve D (DNR) <Steve.Lime at state.mn.us
> wrote:

> So use two layers. One for the background, use tilecache for that. Then use
> an untiled wms/mapserver layer for the overlayed points. - Steve
> ________________________________________
> From: mapserver-users-bounces at lists.osgeo.org [
> mapserver-users-bounces at lists.osgeo.org] On Behalf Of Adam Eskreis [
> aeskreis at gmail.com]
> Sent: Thursday, April 29, 2010 1:24 PM
> To: mapserver-users at lists.osgeo.org
> Subject: Re: [mapserver-users] Re: WMS and tiles cutting off
>
> I have thought about using tilecache with metatiling, however there is a
> caveat about this map that i forgot to mention in my main post, and it has
> to do with that "categories" parameter.  Basically, each point/symbol on the
> map has an associated category in the database backend.  I am using
> mapserver/WMS parameters to change the categories which are called.  Each
> time the user selects a category, only the points in that category are
> shown.  My query in the mapfile looks something like thi:
>
> SELECT point_geom,gid,symbol,angle FROM mapdata WHERE category
> IN(%CATEGORIES%)";
>
> And each time the user changes the categories, I use openlayers to merge
> new parameters, and input the new category values that should be used.  Is
> tilecache still useable if I have a system like this set up?
>
> Thanks,
> -Adam
>
>
> On Thu, Apr 29, 2010 at 6:14 AM, kaipi <mapcollect at gmx.net<mailto:
> mapcollect at gmx.net>> wrote:
>
> Hi,
>
> you can use  http://tilecache.org/ Tilecache   with the option metatiling
> enabled. With metatiling enabled Tilecache will fetch larger tiles (eg.
> 4096x4096) from Mapserver and will cut them into smaller tiles (eg.
> 256x256). It will also increase performance because Mapserver does not need
> to render tiles when they are already in cache.
>
> kaipi
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