I understand for the slow down problem, but what about my attributes completly erased during the saving ? Is this a known issue ? Le 8 févr. 2016 15:08, "Uwe Fischer" <[email protected]> a écrit :
> Pierre, > > > > this is now the third message in this list concerning fatal errors in > editing shapefiles in QGIS within a few weeks (see details below). Maybe > it’s not a consolation to you, but others lost a lot of confidence in QGIS, > too. Looks like there are bugs that are very difficult to remove. It’s a > pity that there is no information on the debugging status. > > > > Regards, > > > > Uwe > > > > On Feb 2, 2016 8:46 PM, "Springfield Harrison [via OSGeo.org] " <[hidden > email] <http://user/SendEmail.jtp?type=node&node=5248593&i=0>> wrote: > > Hello Group, > > Am using QGIS 2.10.1 and have done so without significant problems > for many months. I am attempting to create simple polygons in a shapefile > by direct vertex entry or copying polygons from another shapefile layer and > pasting them into the active layer. > > In almost every case, these features disappear. There is an > entity entry in the attribute table but there are no polygons created. In > one case a polygon was created but it was not the shape that I digitized; > no more polygons could be created although the process for doing so appears > to be working. No error messages were created. The CRS for the project > and the shapefile are the same. > > The shapefile can be opened in another GIS but has no content. > > Here are some product details: QGIS version 2.10.1-Pisa QGIS > code revision d20c5b7 <https://github.com/qgis/QGIS/commit/d20c5b7> > > Thanks very much for any help you can render, Cheers . . . . . . . > . Springfield Harrison > > _______________________________________________ > Qgis-user mailing list > > > > Hello all, > > > > today I was working on a shape dataset and I had to delete some features. > Later I opened the shapefile in ArcMap by chance and I found that the > features were not deleted. They still did exist. I repeated the process – > and got the same result. Then, searching the internet, I found this > incredible post: https://hub.qgis.org/issues/11007 > > > > It is a well known problem (for 1,5 years!!) that *QGIS is not able to > delete shapes in a reliable way*!! I was horrified to read this because > it is the same as if a Word processor would not be able to delete a letter > from a text. I cannot understand why the QGIS developers haven’t fix that > yet. If QGIS really wants to compete with ArcMap, they should fix it as > soon as possible. At least, the according menu entries or buttons should be > inactivated if they don’t bring out reliable results. > > > > My questions are: > > · is this information still up to date? I can‘t read all of the > 80 answers to the post now to get in-depth information ... > > · does anybody have information about how they are planning to > handle this problem at the development team? > > · is there a workaround for this? Do the GRASS vector tools bring > out reliable results? > > · are there more of those software errors in QGIS that might lead > to huge problems in working on vector data and sharing them with others? If > so, is there a „black list“ of things one is never allowed to use in QGIS > if you don’t want to destroy your datasets? > > > > > > > > > > > > > > > > > > *Von:* Qgis-user [mailto:[email protected]] *Im Auftrag > von *Pierre Muckensturm > *Gesendet:* Montag, 8. Februar 2016 14:34 > *An:* [email protected] > *Betreff:* [Qgis-user] [QGis 2.10]Error while saving shape file > > > > Hi, > > I use a QGis 2.10 version, X64 on Windows installed with Osgeo4W. > > I'll try to explain the bug. > > I work on a map, with a shape file of polygons. They are not really > complex, nor numerous (25). I got id, DOSSIER, NOM_OPERAT, > PRIORITE, COMMENTA, DATE_MAJ, SOURCE, LIBELLE_X, LIBELLE_Y > fields and SURF_HA which is a virtual field. > > Friday, it took me 5 min to save the file each time I modify a vertex. > > > > Today, I update my id field with the expression "$id". Then, my shape file > looks like a totally mess (look at the imgur album : > http://imgur.com/a/noSM2). The LIBELLE_X, LIBELLE_Y fields have > disappeard, the DOSSIER field which used to be null is now partially > fulled, the NOM_OPERAT are truncated, fulled in a completelly non-sense > manner. As for PRIORITE, DATE_MAJ. > > Conclusion, 2 days of work in a trash. I'm quite pissed off, according > with the fact that I'm trying to convince my superior we shall use QGis. > > So, what happened ? How could this happen ? Sorry but I don't have the > genuine files, and the data are quite sensitive. > > -- > > PLM >
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