On Fri, Sep 21, 2018 at 1:13 PM Johannes Radinger <[email protected]> wrote: > Hi all, > > this is maybe a very easy question: But how is it possible to identify > duplicate points (that have the same pair of coordinates) of a set of points. > I'd like to get the categories of all non-single (i.e.duplicate/triplicate > etc.) points. I know that I could use the 'rmdupl' tool from v.clean to > remove duplicate geometries but I'd rather like to manually select the > duplicate points I'd like to remove. Therefore, I'd need to identify the > points with similar geometries first. I thought of using v.distance to get > the all points that have 0 distance from another point but the result is 0 > for all points (due to the self-distance which is 0 of course). I could > update the X,Y coordinates of each point and the use a SQL command to > identify points with similar coordinate pairs; however, is there a more > direct way or tool in GRASS to perform such a task?
Did you see https://grasswiki.osgeo.org/wiki/Find_multiple_points_in_same_position ? HTH, Markus _______________________________________________ grass-user mailing list [email protected] https://lists.osgeo.org/mailman/listinfo/grass-user
