ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Core.Data.Analyst3D Namespace / TinDataset Class / GetOutsideTriangleCount Method
Example Version

GetOutsideTriangleCount Method
Gets the number of outside triangles in this TIN. This method must be called on the MCT. Use QueuedTask.Run.
Syntax
public int GetOutsideTriangleCount()

Return Value

The number of outside triangles in this TIN.
Exceptions
ExceptionDescription
A geodatabase-related exception has occurred.
This method or property must be called within the lambda passed to QueuedTask.Run
Remarks
TIN elements can exist "inside" or "outside" the TIN's data area. When TINs are initially built the only elements that are "outside" are the four super nodes and their incident edges and triangles. If clip or erase polygons are added to a TIN, they further modify what is considered to be "inside" or "outside".
Example
Element Counts
var nodeCount = tinDataset.GetNodeCount();
var outsideNodeCount = tinDataset.GetOutsideNodeCount();
var edgeCount = tinDataset.GetEdgeCount();
var outsideEdgecount = tinDataset.GetOutsideEdgeCount();
var triCount = tinDataset.GetTriangleCount();
var outsideTriCount = tinDataset.GetOutsideTriangleCount();
Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3.2 or higher.
See Also