[Qgis-user] Beginner: How to find duplicate points with the Topology Checker plug-in

Jonathan Moules jonathanmoules at warwickshire.gov.uk
Mon Mar 10 07:17:47 PDT 2014


Hi Robert,
There's also the SAGA extension which has a "Remove duplicate Points" tool.
Open the processing toolbox and set t to advanced interface and search for
"Duplicate" should find it.
Hopefully that'll work for you.
Cheers,

Jonathan



On 7 March 2014 12:48, Robert Harris <harris_robert at windstream.net> wrote:

>  Hello All,
>
> I am a beginner using 2.0.1-Dufour on Ubuntu 12.04.
>
> I digitized a poly line into a shapefile that represents a water feature.
> I used Vector/Extract Nodes to create a point shapefile. I added fields to
> the attribute table with longitude and latitude of each point with the
> Field Calculator. I imported the attribute table into an MS Access database
> and used the Find Duplicates query wizard to find 11 pairs of duplicate
> points in 2052 total points. The points are needed for use with the Google
> Maps API.
>
> I tried the Vector/Topology Checker plug-in with a "must not have
> duplicates" rule to find the duplicate points and received a "0 errors were
> found" message.
>
> What am I missing when using the Topology Checker plug-in?
>
> Thank you.
>
> Robert Harris, Volunteer
> Georgia River Network
> http://www.garivers.org/
>
>
>
>
> _______________________________________________
> Qgis-user mailing list
> Qgis-user at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/qgis-user
>

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