[ka-Map-users] Improving ka-map speed with non-cached WMS?

percy percyd at pdx.edu
Thu Dec 17 12:23:20 EST 2009

Bob, let me second Steve's good advice, use Openlayers as your client!

We switched several years ago, but we still use kamap as our tiling 
engine. OL will let you call a WMS as a single call (singleTile: true), 
call mapserver directly for uncached data, etc, etc.

> Date: Wed, 16 Dec 2009 22:56:55 -0500
> From: Stephen Woodbridge <woodbri at swoodbridge.com>
> Subject: Re: [ka-Map-users] Improving ka-map speed with non-cached
> 	WMS?
> To: "Bistrais, Bob" <Bob.Bistrais at maine.gov>
> Cc: ka-map-users at lists.maptools.org
> Message-ID: <4B29AC07.40402 at swoodbridge.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
> Personally, I have switched all my application building over to 
> OpenLayers because is has all the functionality of ka-map on the client 
> side and will support ka-maps precache script if you want to use it on 
> the server-side and you can mix layers in tiles, with a single-tile mode 
> which just draws a single large image filling the view port like you are 
> requesting. Also OpenLayers has a very active community and is still 
> very active on the development side of things.
> http://openlayers.org/
> -Steve
> Bistrais, Bob wrote:
>> I'm looking into doing this, and may well be asking for further advice.
>> Taking it from another angle- is it possible to bypass or disable
>> ka-map's tiling for the image layers?  I don't mean precached vs.
>> nocache, what I mean is, is it possible to draw the WMS data directly
>> and without breaking it into tiles when ka-map renders it?  I'm asking
>> because this seems to be what's slowing it down.  I can draw my WMS
>> services in MapServer CGI mode and they're plenty fast.  Likewise, using
>> the same WMS services in ArcGIS or other platforms, they draw more
>> quickly than with ka-map.

David Percy
Geospatial Data Manager
Geology Department
Portland State University

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