FCurve.OffsetKeys

Introduced

v6.0

Description

Offsets fcurve keys in time or value by a relative amount.

Note: If the KeyCollection is from a different fcurve then the method will raise an 'Invalid argument' (E_INVALIDARG) error.

If the FCurve is locked then the method raises an 'Access Denied' (E_ACCESSDENIED) error.

C# Syntax

FCurve.OffsetKeys( FCurveKeyCollection in_Keys, Object in_FrameOffset, Object in_ValueOffset );

Scripting Syntax

FCurve.OffsetKeys( KeyCollection, [FrameOffset], [ValueOffset] );

Parameters

Parameter Type Description
KeyCollection FCurveKeyCollection The keys to offset.
FrameOffset Double The relative amount to offset the fcurve's time. Can be positive or negative.

Default Value: 0

ValueOffset Double The relative amount to offset the fcurve's values. Can be positive or negative.

Default Value: 0

Examples

JScript Example

// 
// This example illustrates how to shift fcurve keys in both time and value.
// Create a new scene
NewScene(null, false);
// Create a null
oNull = Application.GetPrim("Null");
// Get the posx parameter of the null
oPosX = oNull.posx
// Create array of time-value pairs
aKeys = new Array( 0.00, 5.00,
				1.00, 6.00,
				2.00, 7.00,
				3.00, 8.00,
				4.00, 9.00,
				5.00, 10.00 );
// Create an empty FCurve
oFCurve = oPosX.AddFCurve2( null, siStandardFCurve );
// Set the fcurve keys
oFCurve.SetKeys( aKeys );
Application.LogMessage( 'Before Offset:', siInfo );
for (var i = 0; i < oFCurve.Keys.Count; i++) 
{
	Application.LogMessage( 'Time: ' + oFCurve.Keys(i).Time + ', Value: ' + oFCurve.Keys(i).Value, siInfo );
}
oFCurve.OffsetKeys( oFCurve.GetKeysBetween(2,4), 0.2, -5 );
Application.LogMessage( 'After Offset:', siInfo );
for (var i = 0; i < oFCurve.Keys.Count; i++) 
{
	Application.LogMessage( 'Time: ' + oFCurve.Keys(i).Time + ', Value: ' + oFCurve.Keys(i).Value, siInfo );
}
// Produces the following output:
//
//INFO : Before Offset:
//INFO : Time: 0, Value: 5
//INFO : Time: 1, Value: 6
//INFO : Time: 2, Value: 7
//INFO : Time: 3, Value: 8
//INFO : Time: 4, Value: 9
//INFO : Time: 5, Value: 10
//INFO : After Offset:
//INFO : Time: 0, Value: 5
//INFO : Time: 1, Value: 6
//INFO : Time: 2.2, Value: 2
//INFO : Time: 3.2, Value: 3
//INFO : Time: 4.2, Value: 4
//INFO : Time: 5, Value: 10

See Also

FCurve.Offset FCurve.Scale FCurve.ScaleKeys