Kosza replied to me and suggested I try epsg 4283 instead of epsg 4938 Is it usual to have 2 CRS with the same name, one of which appears to be projected and the other not, I don't think I've seen this before. There still seems to be something odd about 4938, but I don't see any reason to use it so it shouldn't bother me.
Here's where I can learn something. Does anyone know what the deal with this is? I can see a need for a different projections, but is there supposed to be a better way of naming it that I didn't pick up on, am I going to need to remember epsg codes form now on? Thanks Matt On Wed, May 22, 2019 at 11:51 PM Nicolas Cadieux < nicolas.cadi...@archeotec.ca> wrote: > Hi, > Right clicking on the layer in the layer panel and changing the projection > to the correct one should then fix the problem. Tell me if it’s still a > problem and I will also look at the data. > Nicolas > > Le 22 mai 2019 à 03:34, <b.j.kob...@utwente.nl> <b.j.kob...@utwente.nl> a > écrit : > > Sorry to have to disagree with you, but there is something wrong with your > data. If I load the "lineations_GDA94" it claims to be a projected data, > and the units are clearly meters (numbers like -42854769,3100060 in the > coordinate readout). But if you check, you'd find that QGIS thinks the > units are degrees: > > > > <image001.png> > > > > Treating the meter cooridnates as degrees works as long as no reprojection > is needed, but will mess up things when combining it with other data... > > > > > > -- > > Barend Köbben > > > > > > On 22/05/2019, 05:54, "Qgis-user on behalf of Matt Boyd" < > qgis-user-boun...@lists.osgeo.org on behalf of mattsli...@gmail.com> > wrote: > > > > Hi Nicolas and Alexandre, > > I'm pretty sure that I've done as much as I can to make sure I haven't > screwed up the projections. I used to make those mistakes years ago when I > was first learning, lately the mistakes I've made are because I haven't > been paying attention... I'm pretty sure I'm paying attention this time. > > > > This is a link to some data and a qgis file I'm using as an example > > > https://unimelbcloud-my.sharepoint.com/:f:/g/personal/boydmc_student_unimelb_edu_au/EuUzfUvxA6NGmZOuYo8_fmkB0AvLldzBmXwq68mdwZvmcw?e=Ake4Qi > > > > lineations_MGA54_projected is the shapefile with the correctly projected > information layer. - Known good data > > > > If I change to a geogrpahic / unprojected coordinate system, for example > GDA94, this layer is not displayed and the canvas is blank. > > > > If I export the lineations_MGA54_projected data to a new file as > unprojected GDA94 option, the re-projected data is wrong. > > > > Thanks for your help > > > > Matt > > > > > > > > > > > > > > On Tue, May 21, 2019 at 11:37 PM Nicolas Cadieux < > nicolas.cadi...@archeotec.ca> wrote: > > Hi, > > 99 % of the time, the data is the problem because it’s in the wrong crs. > Right click on the problem layer in the layer panel and change the layer > crs to what is should be. Use a google or other base map from quickmap > plugin. That should permit you to find the correct CRS. > > Sometimes, crs will have problems reprojecting across some latitudes or > longitude (like projections make for the poles). In that case, > reprojecting the data using the “save as” option will solve the problem. > > Nicolas > > > Le 20 mai 2019 à 21:53, Matt Boyd <mattsli...@gmail.com> a écrit : > > > > Hi QGISers, > > I'm having an issue with reprojecting things in QGIS. > > Installer OSGEO64W > > Latest version and LTS both have same issue. > > > > Issue: > > reprojection just isn't working. If I load a data set with decimal > degrees and another with a projected coordinate system the data (points / > lines / polygons) will only display if the basemap is in the same > projection system. > > > > This is happening across 2 PCs, (windows10) and the LTS and latest > versions of QGIS. Has anyone got some troubleshooting tips? > > > > Thanks > > Matt > > _______________________________________________ > > Qgis-user mailing list > > Qgis-user@lists.osgeo.org > > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user > >
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