求助方法AddPolyfaceMesh得用法？

Sub Example_AddPolyfaceMesh()
    
    Dim vertexList(0 To 17) As Double    'Data
    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) = 1
        Dim FaceList(0 To 7) As Integer    FaceList(0) = 1
    FaceList(1) = 2
    FaceList(2) = 5
    FaceList(3) = 4
    FaceList(4) = 2
    FaceList(5) = 3
    FaceList(6) = 6
    FaceList(7) = 5    Dim obj As AcadPolyfaceMesh
    Set obj = ModelSpace.AddPolyfaceMesh(vertexList, FaceList)
    obj.Update    ' Change the viewing direction of the viewport to
    ' better see the polyface mesh
    Dim NewDirection(0 To 2) As Double
    NewDirection(0) = -1: NewDirection(1) = -1: NewDirection(2) = 1
    ThisDrawing.ActiveViewport.direction = NewDirection
    ThisDrawing.ActiveViewport = ThisDrawing.ActiveViewport
    ZoomAll
End Sub