I have created many .gpx datas with my Garmin device, but due to the amount of data, I have imported the mapping data from my device several times (also because I didn't want it to be lost)...
As a result I have now many double or even 6 times the same point (including tracks, which I displayed as points also, so that I have the elevation) after I saved all the gpx-files as shapefiles and then merged them.
Is there a way to automatically erase the duplicates with QGIS, or if not with any other free software working on Ubuntu 12.4?
I very much appreciate your help!
أكثر...
As a result I have now many double or even 6 times the same point (including tracks, which I displayed as points also, so that I have the elevation) after I saved all the gpx-files as shapefiles and then merged them.
Is there a way to automatically erase the duplicates with QGIS, or if not with any other free software working on Ubuntu 12.4?
I very much appreciate your help!
أكثر...