Applying a mesh to a vertical or horizontal plane with ARKit

I'm looking to create a mesh using Vector3 coordinates on a floor or wall. Essentially, I'd like to create overlaying mesh on a section of floor or wall, as defined by the user. I'm looking to generate the coordinates via a HitTest through user input; either touch points or finger trace. The mesh would be applied to the selected area. Is is possible to utilize the Vector3 coordinates to generate a mesh or am I heading down the wrong path for what I am trying to do?