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your coordinates are probably in lat/long with degrees as a unit. therefore, along meridians or near the equator, one degree is approximately 111km (circumference/360). note that this will change depending on the distance to the equator. A good practice is to use a local projected coordinate system that is appropriate for your location in order to have a ...


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I would make sure that there are no duplicate polylines lying underneath the 6 polylines that you can see and that you haven't accidentally inserted any other objects into the table. A good way to do this is to do a boundary select on one of the buffers that is returning the wrong count and browse the results. Then select each record in turn in the browser ...



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