How can i implement THREE.Curve to draw a 3D multiple vertex line?

Questions
,
1

suppose i have a line like the following image

1626328083(1)

i wanna draw this line from A to B to C
or C to B to A ,whatever,maybe 100 vertexs

it must extends the THREE.Curve class

2

I saw the Curve class but i dont understand , what should i do? any links or examples would be great

3

Compare this example TubeGeometryFrom2Dshape

from the Collection of examples from discourse.threejs.org

It uses Curve.

4

Great!Thanks man.you ROCK!