## Null

Object Hierarchy | Related C++ Class: Null

### Inheritance

SIObject

ProjectItem

SceneItem

X3DObject

Null

### Description

The Null object is a specialized X3DObject object and represents a point in space with no dimensions. Nulls can be used to set constraints, organize objects into hierarchies, and so on.

### Methods

Add2DChain | Add3DChain | AddAnnotation | AddCamera
AddCameraRig | AddChild | AddControl | AddCustomOp
AddCustomProperty | AddFxTree | AddGeometry | AddICEAttribute
AddLattice | AddLight | AddLightRig | AddMaterial
AddModel | AddNull | AddNurbsCurve | AddNurbsCurveList
AddNurbsCurveList2 | AddNurbsSurface | AddNurbsSurfaceMesh | AddNurbsSurfaceMesh2
AddPolygonMesh | AddPrimitive | AddProperty | AddScriptedOp
AddScriptedOpFromFile | AnimatedParameters2 | ApplyEnvelope | BelongsTo
EvaluateAt | FindChild | FindChild2 | FindChildren
FindChildren2 | GetActivePrimitive2 | GetActivePrimitive3 | GetBoundingBox
GetICEAttributeFromName | GetLocalPropertyFromName | GetLocalPropertyFromName2 | GetModels2
GetPropertyFromName | GetPropertyFromName2 | GetStaticKinematicState | HasStaticKinematicState
IsA | IsAnimated2 | IsClassOf | IsEqualTo
IsKindOf | IsLocked | IsNodeAnimated | IsSelected
LockOwners | NodeAnimatedParameters | RemoveChild | RemoveFromParent
RemoveICEAttribute | SetAsSelected | SetCapabilityFlag | SetLock
SetMaterial | ShapeAnimatedClusters | TaggedParameters | UnSetLock

### Properties

ActivePrimitive | Application | BranchFlag | Capabilities
Categories | Children | Envelopes | EvaluationID
Families | FullName | Help | HierarchicalEvaluationID
ICEAttributes | Kinematics | LocalProperties | LocalRotation
LocalScaling | LocalTranslation | LockLevel | LockMasters
LockType | Material | Materials | Model
Models | Name | NestedObjects | ObjectID
Origin | OriginPath | Owners | PPGLayout
Parameters | Parent | Parent3DObject | Primitives
Properties | Selected | Type |

### Examples

#### VBScript Example

    'VBScript example
    set oNull = activesceneroot.addnull
    LogMessage typename(oNull) & ":" & oNull.Name

### See Also

TrianglePoint Triangle OGLLight OGLMaterial Light X3DObject.AddNull