This document is archived and information here might be outdated.  Recommended version.

ITin.IsDelaunay Property (ArcObjects .NET 10.8 SDK)
ArcObjects Help for .NET developers > ArcObjects Help for .NET developers > ArcObjects namespaces > Geodatabase > ESRI.ArcGIS.GeoDatabase > Interfaces > IT > ITin Interface > ITin.IsDelaunay Property
ArcGIS Developer Help

ITin.IsDelaunay Property

Indicates if TIN was constructed using Delaunay triangulation.

[Visual Basic .NET]
Public ReadOnly Property IsDelaunay As Boolean
public bool IsDelaunay {get;}
HRESULT get_IsDelaunay(
  Boolean* pbIsEmpty
pbIsEmpty [out, retval]

pbIsEmpty is a parameter of type bool*

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.


IsDelaunay returns TRUE if the Delaunay criterion was used in TIN construction. At present, all ESRI TINs are Delaunay.


IsDelaunay is TRUE if the circumscribing circles for all triangles in the TIN do not contain any of the nodes used to construct the TIN. Nodes may fall on the circumcircle perimeters but not inside.

IsDelaunay is FALSE if the above condition is not met.

See Also

ITin Interface