Hi, See below Nicolas Cadieux https://gitlab.com/njacadieux
> Le 31 janv. 2022 à 03:09, Maria Shinoto <maria.shin...@zaw.uni-heidelberg.de> > a écrit : > > Hi, > > I imported a .csv file with about 100 datasets and created a shapefile layer > from the X and Y data. By « dataset » I imagine you mean object like line, polygon and points? Since you only talk about x and y, I take for granted that you are talking about points. Do you still have the original .csv file? That would be useful. > > Then I did something stupid. I deleted some duplicates and changed the X and > Y data slightly in three or four data sets, and I created a new row with one > new data point and X and Y data. I guess you moved some points around in the .shp file, created a new x and y and updated the geometry from the new x and y? Can you use the same steps and update the geometry from the original x and y or did these disappear when you created the shape file? > > What I did no realize is that the data in X and Y will not be accepted > automatically as geo coordinates. > > Now I have a map without the full set of points, and I do not know the > following: > > 1. How do I check quickly, which rows need ne geocoordinates from the X > and Y columns? If you have the original csv, you can use that remake the ordinal file, then, in the vector menu, you can substrat (difference I think, I’am not in front of a computer) one vector file from the other. The difference between both files will indicate what changed. You can also regenerate the new x and y fields (like testY and testY) using the field calculator and $x and $y functions. If you don’t have geometries, then those field will come up as empty. > > 2. When I figured which data set need updates, how do get the X and Y data > into their geocoordinates and get them shown on the map. > > Thanks, > Maria > I you are still stuck, we could zoom. I am in Montreal time. Nicolas > _______________________________________________ > 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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