QGIS Distance Matrix - with line geometry output?

Question

I have a series of Output Area centroids and I want to create a matrix of lines between each point (every point connected to every point), which is effectively what the distance matrix tool does (I think). But I also need the line geometry for visualisation purposes. Can anyone tell me how to do this?

Answer 1

As you have Distance matrix output, use its InputID and TargetID fields to build connecting lines.

Just open the Layer properties | Symbology and select Geometry generator.

If your original point layer name is points and it has id field (the one you used to create the Distance matrix), the expression would be:

make_line(geometry(get_feature('points', 'id', "InputID")), 
          geometry(get_feature('points', 'id', "TargetID")))

It will give you these connecting lines:

Answer 2

With polygons, you can use the plugin "conefor" (you can convert point to polygon with a buffer and dont activ the option "edge distance")

With points, may be you can use the plugin "MMQGIS". You have here a tutorial that can help : hub line