Circle resolution/approximation

My mesh is dense, but circle boundary doesn’t correspond to mesh by resolution. Can circle boundary be more round?

If you are creating the geometry using the FreeFem commands border + buildmesh, then just prescribe more points for the corresponding border.

I use 320 points for border “wire” (non-meshed area). Do i have to introduce point number at border definition stage?

int nwire = 320;
border wire(t=0.0, 2pi){x=rcos(t); y=h+r*sin(t); label = ground2;}
mesh amesh = buildmesh(

I think this solution should work.