/// <summary>
/// Add a new edge to the list.
/// </summary>
/// <param name="tag">The type of edge tag, such as smooth or corner.</param>
/// <param name="v0">First vertex.</param>
/// <param name="v1">Second vertex.</param>
/// <exception cref="ArgumentOutOfRangeException">If tag is unset or non-defined.</exception>
/// <since>7.0</since>
public SubDEdge Add(SubDEdgeTag tag, SubDVertex v0, SubDVertex v1)
{
if (!SubD.IsSubDEdgeTagDefined(tag))
{
throw new ArgumentOutOfRangeException("tag");
}
IntPtr ptr_subd = m_subd.NonConstPointer();
IntPtr v0_ptr = v0.NonConstPointer();
IntPtr v1_ptr = v1.NonConstPointer();
uint id = 0;
IntPtr ptr_edge = UnsafeNativeMethods.ON_SubD_AddEdge(ptr_subd, tag, v0_ptr, v1_ptr, ref id);
if (ptr_edge != IntPtr.Zero)
{
return(new SubDEdge(m_subd, ptr_edge, id));
}
GC.KeepAlive(v0);
GC.KeepAlive(v1);
return(null);
}
internal static bool IsSubDEdgeTagDefined(SubDEdgeTag tag)
{
return(tag > SubDEdgeTag.Unset && tag <= SubDEdgeTag.SmoothX);
}
