/*

	This example demonstrates how to query the type of component

	that is currently selected. This can be useful if you are

	writing a tool that operates only on a specific subcomponent

	and you are checking to make sure the correct type of

	subcomponent has been selected by the user.

*/

NewScene( null, false );

var root = Application.ActiveSceneRoot;

// For the purposes of this example we are creating 

// the cube and adding it to the selection

var box = root.AddGeometry( "Cube", "MeshSurface" );

Selection.Add( box.ActivePrimitive.Geometry.Segments(0) );

// With one facet selected, the Selection.Item property

// returns a CollectionItem from which you can retrieve

// the SubComponent 

var first_selected = Selection.Item(0).SubComponent;

Application.LogMessage( Application.ClassName(first_selected) );

// The SubComponent object gives you access to the actual

// interface for the component type via its ComponentCollection

// property (in this case, an Edge object)

var component_collection = first_selected.ComponentCollection;

Application.LogMessage( Application.ClassName(component_collection.Item(0)) );

// Expected results:

//INFO : SubComponent

//INFO : Edge

set oObj = ActiveSceneRoot.AddGeometry("Cube","MeshSurface")

set oPoint = oObj.ActivePrimitive.Geometry.Points(4)

set oSubComponent = oPoint.SubComponent

oSubComponent.AddElement 3

set oPoints = oSubComponent.ComponentCollection

for each point in oPoints

	Application.LogMessage point.Index

next