[Qgis-user] CRS for a start
otto.dassau at gmx.de
Mon Mar 22 14:25:44 EDT 2010
Am Sun, 21 Mar 2010 18:04:29 -0700
schrieb "John C. Tull" <jctull at gmail.com>:
+1, i also think your suggestions make working with qgis more
> +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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