'
' This example adds and removes the center references on clusters
'
set oCone = Application.ActiveProject.ActiveScene.Root.AddGeometry("Cone","MeshSurface")
set oNull = Application.ActiveProject.ActiveScene.Root.AddNull
set oCylinder = Application.ActiveProject.ActiveScene.Root.AddGeometry("Cylinder","MeshSurface")
set oGrid = Application.ActiveProject.ActiveScene.Root.AddGeometry("Grid","MeshSurface")
set oCluster = oGrid.ActivePrimitive.Geometry.AddCluster(siPolygonCluster, "PolygonClusterOnGrid", array(59,60,61))
set oCluster2 = oGrid.ActivePrimitive.Geometry.AddCluster(siEdgeCluster, "EdgeClusterOnGrid", array(20,21,22,23,24,36,38,39))
set oCluster3 = oGrid.ActivePrimitive.Geometry.AddCluster(siVertexCluster, "VextexClusterOnGrid", array(4,5,6))
set oCluster3.CenterReference = oCone
set oClsRef3 = oCluster3.CenterReference
LogMessage "The cluster center of " & oCluster3.Name & " : " & oClsRef3.Name & ", " & typename(oClsRef3)
set oCluster.CenterReference = oNull
set oClsRef = oCluster.CenterReference
LogMessage "The cluster center of " & oCluster.Name & " : " & oClsRef.Name & ", " & typename(oClsRef)
set oCluster2.CenterReference = oCylinder
set oClsRef2 = oCluster2.CenterReference
LogMessage "The cluster center of " & oCluster2.Name & " : " & oClsRef2.Name & ", " & typename(oClsRef2)
LogMessage "Finding the operators on " & oGrid.Name
set CH = oGrid.ActivePrimitive.ConstructionHistory
LogMessage typename(CH)
for each op in CH
        LogMessage op.Name & ", " & op.Type
next
set oCluster3.CenterReference = Nothing
set oClsRef4 = oCluster3.CenterReference
LogMessage typename(oClsRef4)
LogMessage "Finding the operators on " & oGrid.Name
set CH = oGrid.ActivePrimitive.ConstructionHistory
LogMessage typename(CH)
for each op in CH
        LogMessage op.name & ", " & op.type
next