[ka-Map-users] tiling print service (WMS)

[Ed McNierney]

Bart -

RAM is cheap <g>.  Seriously, although it depends a lot on the machine
you're installing it in, that much memory (1GB) for many systems runs
about USD $100.  And depending on the usage level, you might just let
the system swap and use virtual memory for the task.

	- Ed

Ed McNierney
President and Chief Mapmaker
TopoZone.com / Maps a la carte, Inc.
73 Princeton Street, Suite 305
North Chelmsford, MA  01863
ed at topozone.com
(978) 251-4242  

-----Original Message-----
From: ka-map-users-bounces at lists.maptools.org
[mailto:ka-map-users-bounces at lists.maptools.org] On Behalf Of Bart van
den Eijnden (OSGIS)
Sent: Wednesday, May 10, 2006 8:12 AM
To: ka-map-users at lists.maptools.org
Subject: RE: [ka-Map-users] tiling print service (WMS)

Hi Ed,

but won't that consume too much memory?

For generating a 15.000 x 15.000 pixels PNG24 image Mapserver would take
about 900 Mb into memory or not?

Best regards,
Bart

> Bart -
>
> I'm not aware that a 2048x2048 pixel limit is "normal" for WMS
servers.
> That's the default limit for MapServer but it is very easily changed.
> I've done that for several years and produce very large images from 
> single MapServer WMS requests.
>
> 	- Ed
>
> Ed McNierney
> President and Chief Mapmaker
> TopoZone.com / Maps a la carte, Inc.
> 73 Princeton Street, Suite 305
> North Chelmsford, MA  01863
> Phone: +1 (978) 251-4242
> Fax: +1 (978) 251-1396
> ed at topozone.com
>
> -----Original Message-----
> From: ka-map-users-bounces at lists.maptools.org
> [mailto:ka-map-users-bounces at lists.maptools.org] On Behalf Of Bart van

> den Eijnden (OSGIS)
> Sent: Wednesday, May 10, 2006 7:52 AM
> To: ka-map-users at lists.maptools.org
> Subject: [ka-Map-users] tiling print service (WMS)
>
> Hi list,
>
> can the ka-map tiling logic be used to create a WMS print service?
>
> Imagine our use case, people wanting to print on A0 paper from ArcGIS,

> and ArcGIS has a WMS layer for aerial photographs in it. Ofcourse 
> normal WMS services limit themselves to 2048x2048 pixels like
Mapserver does.
> But ArcGIS requests an image of about 15000 pixels wide.
>
> If a tiling php script could act as WMS service, and would ask for
> 2048x2048 tiles to the aerial photograph WMS, and stream that back to 
> the client (ArcGIS), it could be a solution. Could ka-map be used for 
> this?
> Would it be a lot of work?
>
> Also, is it possible to stream back the whole 15000x15000 pixels image

> without taking the whole thing in memory? I.e. could the script read 
> up the tiles from disk and stream them sequentially into 1 image?
>
> Thanks in advance for some thoughts on this.
>
> Best regards,
> Bart
>
> _______________________________________________
> ka-Map-users mailing list
> ka-Map-users at lists.maptools.org
> http://lists.maptools.org/mailman/listinfo/ka-map-users
>
>



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