I attempted it with a linestring of Australia exported as coords array from QGIS a while ago and tested using a special website where you can input a coords array which then displays as polyline.

Now, while some roads were drawn properly and looked like how they would on a road map, others went a bit funny, (e.g, a point in Perth would link up to a point in Brisbane. Obviously the polyline is just linking the points in the ordet you provide them, not great for what i was looking for.

I now have a line string of U.S motorways, I’d like to convert it to a polyline with it covering all roads opposed to linking up points randomly.

Is there a feature in QGIS where I can perhaps make it so it does that? (Even if it has to double back on it’s self).

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  • 3
    Why don't you just dissolve the data?
    – Erik
    Jun 19 at 17:14
  • @Erik I was unaware that function did that.
    – IceBear123
    Jun 19 at 20:40


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