[Qgis-user] Server-klient modell

[Bernhard Ströbl]

Hi Johan,

here are some thoughts:

IMHO a map server is a means to provide a certain view on your data 
(labelling, colors). For ortophotos this is normally not neccessary.

To show only the current area of interest, you could create a virtual 
raster (*vrt) that can be loaded as _one_ layer into QGIS (be sure to 
deactivate "Create Raster Icons", see [1]).

Serving the ortophotos with a WMS server you could use other clients 
(like OpenLayers) to access them, too.

Access can be restricted on network file servers, too.

Performance: does it make sense to load raster files (ortophotos) into a 
WMS server rerender them and deliver to the client as, well, raster 
file? Maybe if you have a slow network this makes sense provided the 
ortophotos are stored on the server.

How about quality? I would assume that accessing the native data 
provides better quality than having them rerenderd on the server.

No matter which solution you choose be sure to create pyramids.

So all depends on your needs :)

Bernhard


[1] 
http://osgeo-org.1560.x6.nabble.com/Deactivate-raster-icon-generation-by-default-td5062483.html#a5063070

Am 04.07.2013 09:11, schrieb Johan Nilsson:
> If you have access to all computers, are there any benifit to set up
> a map-server?
> For instance if you have a set with a lot of ortofoto, it's take a lot
> of time to load fore instance 100 pictures into a workspace in QGIS.
> Have you better controll if the pictures are on a server and when I add,
> only ortofoto over my area of intresst are shown. Or can you also do
> that in a QGIS workspace?
> As I see the big idea nowdays with Map-servers, are that you may limit
> the access of data, or?
> /Cheers
>
>
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