Thanks Mike, I guess that's reassuring - it would be weird if QGIS users just accepted that they'd need to re-add their layers every time.
But it doesn't help me ;) I have completed that particular project, by loading all the external maps, creating and saving the derivatives in the local directory, and then removing the external maps, in a single session. All the maps in the local directory remain accessible between sessions, so for now I'm set. Best, Tyler -- plantarum.ca On Fri, Feb 7, 2020, at 6:46 AM, Mike Flannigan wrote: > > I can't reproduce that on Linux Mint 19.2 and QGIS 3.10.1. > Everything works fine when I include a shape file and a > geotiff from another drive: > /media/mike/main1/DDrive/GIS/Shape Files/MO > > I reopen the project and it opens fine every time. > > > Mike > > > > On 2/5/20 2:00 PM, qgis-user-requ...@lists.osgeo.org wrote: > > Date: Tue, 04 Feb 2020 17:02:09 -0500 > > From: "Tyler Smith"<ty...@plantarum.ca> > > To:qgis-user@lists.osgeo.org > > Subject: [Qgis-user] rasters on different hard drive become > > unavailable, paths not saved properly? > > Message-ID:<418d7732-a785-4cb3-9fa2-6beb9cb18...@www.fastmail.com> > > Content-Type: text/plain > > > > Hello, > > > > I'm just getting (re)started with QGIS (version 3.10.2, on Ubuntu 18.04). I > > have some big raster files that I will be using for several projects. I > > have a second 2TB hard drive on my computer where I store them. I put > > symbolic links to them in the folder for a QGIS project. This worked fine - > > I was able to add them to the project, complete some analyses (merge, > > ruggedness, align etc), and save the resulting rasters. > > > > However, when I re-opened the project, all the symbolic linked rasters > > appeared as unavailable layers. It looks like the paths to the symbolic > > links were replaced by relative paths to the linked files themselves (e.g., > > ../../../enm/worldclim/na/wcna_01.tif). This path is not correct, the > > actual file is at /media/data/enm/worldclim/na/wcna_01.tif, and the > > symbolic link is at ./data/wcna_01.tif, relative to the QGIS .qgz project > > file. > > > > I thought that the problem was using symbolic links, so I added one of the > > rasters using the full path to the file on the second hard drive. When I > > saved the project, closed and re-opened it, this layer was also listed as > > unavailable, with the same path listed for the corresponding symbolic > > linked file. > > > > Then I discovered that projects can be set to use absolute or relative > > paths. This project had been set to relative (the default). So I changed it > > to absolute, and corrected the datasource for one of my unavailable layers. > > That worked for the session, but after saving and reloading, the path had > > been stored as /home/tws/enm/worldclim/na/wcna_01.tif, which is an absolute > > path, but not the correct one (see above). > > > > The rasters and shapefiles that I created as part of this project, saved in > > the same directory as the .qgz file, work fine, and are available between > > QGIS sessions. > > > > Is it not possible to have files on different physical hard drives in the > > same project? Have I done something wrong here? > > > > Best, > > > > Tyler > > _______________________________________________ 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
