[Qgis-developer] Web Client - New Features

[Andreas Neumann]

Hi Larry,

Thanks for sharing this.

We have certainly talked about adding these base layers, but for me
personally, the drawbacks with the tiles had been worse than the
advantages they deliver to me. I think you list them well in the caveats.

However, this doesn't mean that one shouldn't go this route esp. for
pure and fast display (without caring too much about printing).

One workaround for the printing could be to use the tiled-based base map
for display on the web client and then use the raster source directly
for printing.

One could mark layers in the QGIS project as "printing only" which
wouldn't be included in the GeoExt tree and wouldn't be displayed in the
client, but when it is printed and the user selects the corresponding
tiled base layer, then QGIS can include the corresponding print layer
instead of the base layer.

Btw: do you have a link to a working prototype to see the speed
improvements?

Once your work matures, it would be interesting to have this back in the
main trunk.

Thanks a lot and greetings,
Andreas

On 01/06/2012 12:51 AM, Larry Shaffer wrote:
> Hi,
> 
> I'm new to the list, but have been tinkering around with new features
> for the QGIS Web Client for about a month now.
> 
> I finally decided to fork the client project at github and am looking
> for some input on the first new feature I've got working: extra
> OpenLayers base layers and overlays (with the QGIS Server output
> sandwiched between). Working with a QGIS Server, MapProxy and
> OpenLayers workflow, I've gotten the maps rendering in the client
> faster, decently cached, and with quick label drawing.
> 
> See the marginally coherent description here:
> http://dakcarto.github.com/qgis-web-client/
> 
> There is no code yet to play with as I am figuring out how to work
> with git/github (first time with this VCS) and push the work up to my
> 'extralayers' branch.
> 
> I'm looking for input on the feature, like whether you think it is a
> good addition, or whether you see a different approach. I'm mostly
> looking at adding features that keep the user entry level still around
> just knowing some javascript, OpenLayers and a smattering of server
> configuration. I think keeping the logic coding mixed in with
> GeoExt/Ext, and the configuration easier, is a benefit to adoption of
> the client by a wider user group.
> 
> Thank you for any help you can offer, and thanks to those who have
> previously worked on the client,
> 
> Larry Shaffer
> Dakota Cartography
> Black Hills, South Dakota
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