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# kCMFormatDescriptionCameraCalibration_LensFrameAdjustmentsPolynomialX

```
let kCMFormatDescriptionCameraCalibration_LensFrameAdjustmentsPolynomialX: CFString
```

## Discussion

\abstract Specifies a three element polynomial for mapping x axis UV parameters with an adjustment using the equation `x' = polynomialX[0] + polynomialX[1]*x + polynomialX[2]*x^3`.
\discussion The values are in a CFArray of three CFNumbers(float) in the order polynomialX[0], polynomialX[1] & polynomialX[2].
The polynomial transform origin is at the center of the frame. The default values of elements of polynomialX[] are [0.0, 1.0, 0.0].

---

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