[Gmsh] Define anchor points or lines.

[Billy Araujo]

Imagine I have a simple rectangular plane.

Is it possible to define an anchor point, for example, at the center
so that the meshing creates a node at that point? How about
unconnected lines?

I know this can be done dividing the rectangle into 4 smaller ones but
that is not what I was looking for.

Thanks in advance,

Billy.