Using Programming Languages other than VBA

Sub Example_NumberOfVertices()
	' This example creates a PolyFaceMesh and displays the number of vertices it contains

	Dim vertexList(0 To 17) As Double
	Dim FaceList(0 To 7) As Integer
	Dim NewPolyFaceMeshObj As AcadPolyfaceMesh
	Dim direction(0 To 2) As Double

	'Data for new PolyFaceMesh object
	vertexList(0) = 4: vertexList(1) = 7: vertexList(2) = 0
	vertexList(3) = 5: vertexList(4) = 7: vertexList(5) = 0
	vertexList(6) = 6: vertexList(7) = 7: vertexList(8) = 0
	vertexList(9) = 4: vertexList(10) = 6: vertexList(11) = 0
	vertexList(12) = 5: vertexList(13) = 6: vertexList(14) = 0
	vertexList(15) = 6: vertexList(16) = 6: vertexList(17) = 6

	FaceList(0) = 1:	FaceList(1) = 2:	FaceList(2) = 5
	FaceList(3) = 4:	FaceList(4) = 2:	FaceList(5) = 3
	FaceList(6) = 6:	FaceList(7) = 5

	' Create new PolyFaceMesh object
	Set NewPolyFaceMeshObj = ModelSpace.AddPolyfaceMesh(vertexList, FaceList)
	NewPolyFaceMeshObj.Update

	' Change the viewing direction of the viewport to
	' better see the polyface mesh
	direction(0) = -1: direction(1) = -1: direction(2) = 1
	ThisDrawing.ActiveViewport.direction = direction
	ThisDrawing.ActiveViewport = ThisDrawing.ActiveViewport
	ThisDrawing.Application.ZoomAll

	' Display number of vertices in this PolyFaceMesh
	MsgBox "The new PolyFaceMesh contains " & NewPolyFaceMeshObj.NumberOfVertices & " vertices."
End Sub