/// <summary>
/// Add a b-spline with control points sampling the curves in `curveTags'. The
/// density of sampling points on each curve is governed by `numIntervals'. If
/// `tag' is positive, set the tag explicitly; otherwise a new tag is selected
/// automatically. Return the tag of the b-spline.
/// </summary>
public static int AddCompoundBSpline(int[] curveTags, int numIntervals = 20, int tag = -1)
{
var index = Gmsh_Warp.GmshModelGeoAddCompoundBSpline(curveTags, curveTags.LongLength, numIntervals, tag, ref Gmsh._staticreff);
Gmsh.CheckException(MethodBase.GetCurrentMethod().MethodHandle);
return(index);
}