Geometry does not derive from Object3D. Why?

[dugla]

For context see my question - which I solved here:

How do I align a cylinder along an axis?

I am trying to position and orient a set of cylinders. As input I have a list of xyz locations. Each cylinder is positioned and oriented from successive pairs of xyz values. One after another. Here is the code: const geometries = [] let previousVertex = undefined const vertices = EnsembleManager.getSingleCentroidVerticesWithTrace(trace) for (let vertex of vertices) { if (previousVertex) { // create cylinder with length equal to the distanc…