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# fromValue

Defines the value the receiver uses to start interpolation.

```
var fromValue: Any? { get set }
```

## Discussion

See [`Setting Interpolation Values`](/documentation/QuartzCore/CABasicAnimation#Setting-Interpolation-Values) for details on how `fromValue` interacts with the other interpolation values.

## See Also

  [Core Animation Programming Guide](https://developer.apple.com/library/archive/documentation/Cocoa/Conceptual/CoreAnimation_guide/Introduction/Introduction.html#//apple_ref/doc/uid/TP40004514)


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