Function gmsh_sys::gmshModelGeoAddBSpline

pub unsafe extern "C" fn gmshModelGeoAddBSpline(
    pointTags: *mut c_int, 
    pointTags_n: usize, 
    tag: c_int, 
    ierr: *mut c_int
) -> c_int

Add a cubic b-spline curve with pointTags control points. If tag is positive, set the tag explicitly; otherwise a new tag is selected automatically. Creates a periodic curve if the first and last points are the same. Return the tag of the b-spline curve.