[Qgis-developer] Re: [Qgis-user] CRS for a start

[John C. Tull]

+1 on each of a-c.

On Mar 21, 2010, at 3:01 PM, Milena Nowotarska wrote:

> Hi All,
> 
> I guess that many users work not only with WGS84 projection (which is
> set by default in QGIS) so I would like to discuss with you a change
> in QGIS behaviour on loading a layer.
> 
> In my opinion it would be good if QGIS:
> a) set the projection for a project file/working environment from the
> first loaded layer if it has the projection information
> b) prompt for projection information if the layer does not have it
> c) inform in a popup window when the projection of next loaded layers
> do not match the projection already set in the working environment
> (when reprojection on the fly is not ticked)
> 
> Now, as I personally use metric reference systems (2180, 2176, 2177),
> every time I open a layer, I have to set the proper CRS and, on the
> other tab change units from degrees to meters. If I forget to do that,
> I will get strange scale and strange measurement output.
> At least the change form geographic to metric projection should force
> the change of units. Otherwise we won't be able to say that QGIS is
> user friendly ;)
> 
> What in your opinion should be the most expected behaviour in a good GIS system?
> 
> I mean in QGIS I can open now a holiday photo, go to layer properties
> and get an impresion from it's metadata, that it is already
> georeferenced:
> "Layer Spatial Reference System:
> +proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs"
> which is of course not true. But we have to think about novice GIS
> users who might either go dizzy or get bad habits.
> 
> Best,
> Milena
> 
> -- 
> Milena Nowotarska
> http://wiki.osgeo.org/wiki/Milena_Nowotarska
> http://quantum-gis.pl/
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