Function gmsh_sys::gmshModelOccAddCircle

pub unsafe extern "C" fn gmshModelOccAddCircle(
    x: f64, 
    y: f64, 
    z: f64, 
    r: f64, 
    tag: c_int, 
    angle1: f64, 
    angle2: f64, 
    ierr: *mut c_int
) -> c_int

Add a circle of center (x, y, z) and radius r. If tag is positive, set the tag explicitly; otherwise a new tag is selected automatically. If angle1 and angle2 are specified, create a circle arc between the two angles. Return the tag of the circle.