public ConstCastHolder(CommonObject obj, object old_parent)
{
m_oldparent = old_parent;
}
/// <summary>
/// Intentionally internal so only the IsCorrupt test can throw this exception.
/// </summary>
/// <param name="ptrGeometry">pointer to base geometry (ON_Object*)</param>
/// <param name="obj">Corrupt geometry .NET class</param>
internal CorruptGeometryException(IntPtr ptrGeometry, CommonObject obj) :
base("Corrupt brep or mesh detected. Crash prevented.")
{
Pointer = ptrGeometry;
CommonObject = obj;
}