internal virtual IntPtr NonConstPointer()
{
if (IntPtr.Zero == m_ptr && m_subobject_index >= 0 && m__parent != null)
{
Rhino.Geometry.PolyCurve pc = m__parent as Rhino.Geometry.PolyCurve;
if (pc != null)
{
IntPtr pPolyCurve = pc.NonConstPointer();
IntPtr pThis = UnsafeNativeMethods.ON_PolyCurve_SegmentCurve(pPolyCurve, m_subobject_index);
return(pThis);
}
Rhino.Geometry.BrepLoop loop = this as Rhino.Geometry.BrepLoop;
if (loop != null)
{
IntPtr pBrep = loop.Brep.NonConstPointer();
return(UnsafeNativeMethods.ON_BrepLoop_GetPointer(pBrep, loop.LoopIndex));
}
}
NonConstOperation(); // allows cached data to clean up
return(m_ptr);
}
internal virtual IntPtr NonConstPointer()
{
if (IntPtr.Zero != m_ptr)
{
// m_ptr points ot an ON_Object.
// Repair corruption that causes crashes in breps and meshes.
// The parameters 0,0 mean:
// The first 0 paramter = bReplair and means detect but do not repair - so exception handler can see the damaged original information.
// The second 0 parameter = bSilentError means call C++ ON_ERROR() so a dev running a debug build gets a chance to see
// the corrupt brep/mesh immediately.
if (PerformCorruptionTesting && 0 != UnsafeNativeMethods.ON_Object_IsCorrupt(m_ptr, 0, 0))
{
throw new CorruptGeometryException(m_ptr, this);
}
}
else if (m_subobject_index >= 0 && m__parent != null)
{
Rhino.Geometry.PolyCurve pc = m__parent as Rhino.Geometry.PolyCurve;
if (pc != null)
{
IntPtr ptr_polycurve = pc.NonConstPointer();
IntPtr ptr_this = UnsafeNativeMethods.ON_PolyCurve_SegmentCurve(ptr_polycurve, m_subobject_index);
return(ptr_this);
}
Rhino.Geometry.BrepLoop loop = this as Rhino.Geometry.BrepLoop;
if (loop != null)
{
IntPtr ptr_brep = loop.Brep.NonConstPointer();
return(UnsafeNativeMethods.ON_BrepLoop_GetPointer(ptr_brep, loop.LoopIndex));
}
}
NonConstOperation(); // allows cached data to clean up
return(m_ptr);
}