## AnimationSourceItem.Source

### Description

Sets or returns an animation source. You can get an FCurve, ShapeKey or a StaticSource) but you can only set an fcurve or a static animation source. If the new source is null or not a valid source then an invalid argument error is raised.
Note: If the AnimationSourceItem is a compound (siAnimCompoundAnimItem or siShapeCompoundAnimItem) this property will fail. You can test for whether this is a compound or not by testing the AnimationSourceItem with the base property SIObject.Type.

### C# Syntax

    // get accessor

    AnimationSource rtn = AnimationSourceItem.Source;

    // set accessor

    AnimationSourceItem.Source = AnimationSource;

### Examples

#### VBScript Example

    '

    ' This example illustrates how to create a simple actionsource from some position animation.

    ' The AnimationSourceItem.Source property is used to get the fcurve source and modify the keys.

    '

    NewScene , false

    set oRoot = Application.ActiveProject.ActiveScene.Root

    ' These commands were cut and pasted from scripting history

    ' and modified to work in a script. They create a simple

    ' actionsource from some animation on the null's position

    set oNull = GetPrim( "Null" )

    strPosParams = oNull & ".kine.local.posx," & oNull & ".kine.local.posy," & oNull & ".kine.local.posz"

    Translate oNull, -8.153, 7.015, -0.702, siRelative, siView, siObj, siXYZ

    SaveKey strPosParams, 1.000

    Translate oNull, 8.350, -8.935, 0.894, siRelative, siView, siObj, siXYZ

    SaveKey strPosParams, 50.000

    Translate oNull, 9.413, 8.935, -0.894, siRelative, siView, siObj, siXYZ

    SaveKey strPosParams, 100.000

    StoreAction oRoot, strPosParams, 2, "StoredFcvAction", True, 1, 100

    ' Get the actionsource from the model

    set oActionSource = oRoot.Sources("StoredFcvAction")

    ' Find animation source item with posx

    for each oSourceItem in oActionSource.SourceItems

    	if InStr(1,CStr(oSourceItem.Target),"posx",vbTextCompare)<>0 then

    		exit for

    	end if

    next

    ' Change the fcurve keys on the posx source

    set oFCurve = oSourceItem.Source

    oFCurve.SetKeys Array(1, -8, 50, 8, 100, 9 )

    ' Apply actionsource with modified posx fcurve

    AddClip oRoot, oActionSource

    ' Now find the clip and test the source items

    set oClip = oRoot.Mixer.Clips(0)

    for each oAnimSrcItem in oClip.Source.SourceItems

    	LogMessage oAnimSrcItem.FullName & " is active: " & oAnimSrcItem.Active

    next

    ' Output of above script:

    'INFO : muting null.kine.local.posx

    'INFO : AnimationSourceItem is active: False

    'INFO : AnimationSourceItem is active: True

    'INFO : AnimationSourceItem is active: True