I have 1 shp line, I want to determine the intersection positions of the roads at 4 the intersection.

I used "intersection point at the road" but it gave an unexpected result (picture 1)

enter image description here

I want to results as picture 2

enter image description here

Is there any method to make it?

  • Why is that unexpected? The first image shows all the line intersections. The second image only shows two intersections. What makes those two intersections special?
    – csk
    Commented Dec 9, 2019 at 20:09
  • Also, what is "intersection point at the road"? I don't see any tool, algorithm or plugin with that name.
    – csk
    Commented Dec 9, 2019 at 20:10
  • Split your lines at the intersections and count intersecting features via SQL, e.g. SELECT Count(*) FROM layerA WHERE ST_Intersects(layerA, layerB) = 1 and filter the points based on your desired no of intersections.
    – fatih_dur
    Commented Dec 10, 2019 at 6:50


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