## Geometry2D.AverageNormal

### Description

Get the average normal of given 2D geometry

### Scripting Syntax

    oBoolean = Geometry2D.AverageNormal( compIdxArray, compNor );

### Return Value

Boolean. True if the average normal is valid; otherwise False

### Parameters

Parameter | Type | Description
--- | --- | ---
compIdxArray | Array of Integer values | An array of indices of 2D Component
Possible Values: | Description:
0 | Each index in the array must be valid
compNor | SIVector3 | Upon return, contains the average normal of the given 2D geometry

### Examples

#### VBScript Example

    'Create a cube

    CreatePrim "Cube", "MeshSurface"

    set oSelList = GetValue("SelectionList")

    set oItem = oSelList(0)

    set oGeometry = oItem.obj

    oNb2D = oGeometry.Nb2D

    set o2DComponent = oGeometry.Geometry2D

    set oNor = XSIMath.CreateVector3()

    ' Construct an array containing the indices 0,1,2,3

    dim oIndicesArray

    oIndicesArray = Array( 0, 1, 2, 3 )

    if o2DComponent.AverageNormal( oIndicesArray, oNor ) then

    LogMessage "Average normal of Component (0, 1, 2, 3) : " & oNor.x & " | " & oNor.y & " | " & oNor.z

    end if

### See Also

Geometry2D.Normal Geometry2D SIVector3