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Hello All, Milena Nowotarska wrote: I agree. It is a quicker way to work rather than having to specifically set up the project as well. If the user has a raster and loads it first then it ensures that it can be displayed. This is how MapInfo handles setting the map projection.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 The options in Settings->Options->CRS handle this pretty well I think.b) prompt for projection information if the layer does not have it I agree. I am not convinced the the reprojection on the fly is working properly though as it looks like QGIS does not store co-ordinate transform information for each layer. I put in a bug report on Saturday night (https://trac.osgeo.org/qgis/ticket/2567) and will wait and see what people more familiar with the code think.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) I would also suggest that if a layer cannot be displayed (eg it is a raster in a different CRS to the map, or even if it is outside the scale limits) then it could be indicated in the legend - greyed, strike through etc. Maybe the map tip could explain why.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 |
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