On 11/25/2013 07:24 AM, BigBaka wrote: > Hi, I have for a particular province in my country of question I have > multiple separate folders for each segment of the province and I'm trying to > get all the segments combined into one larger shapefile for each unit (eg > rivers). I've been looking around forums to try and do this seemingly simple > task, but cannot find a solution that seems to work.Trying to use the merge > shapefiles in Vector-> Data Management Tools doesn't seem to be a great > option because it seems that you can only merge 2 files at a time, which is > not particularly practical with 20 odd files. So I looked around and found a > plugin called mmqgis which has a Merge Layers option which seems to offer a > way to highlight certain layers in the TOC and spit out an output into a new > shapefile. Everything seemed to work when I tried this but finally, I > realised that not all the layers had been copied into the new shapefile. In > fact it seems that only one or two layers will be combined at any one time. > Lastly I followed a suggestion here > <http://osgeo-org.1560.x6.nabble.com/Merging-3-different-Shapefiles-tt4138254.html#a4138257> > > to copy and paste the attribute tables from each different shapefile into a > new shapefile. This seemed to work until I saved the new shapefile, and all > the values in the attribute table turned to "NULL". I have exactly the same > problem running Windows 7 (QGIS 1.8) and Ubuntu 12.04 (QGIS 2.0).Any > suggestions welcome.ThanksBigBaka > >
Depends on if you want to learn to script a loop. You can definitely use ogr2ogr on the command line with the append option. You'd need to write a short script to loop over all shp files in your directory adding them one at time. Or do something similar by importing all of the files into a spatialite or postgis database (both could also be scripted). Enjoy, Alex _______________________________________________ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
