# DrawSymmetricFilledCurve(Rect, AudioCurveAndColorEvaluator)

> Fills the area between the curve evaluated by the AudioCurveAndColorEvaluator provided and its vertical mirror image with smooth gradients along the edges. Useful for drawing amplitude plots of audio signals.

## Definition

* **Type:** Method
* **Namespace:** [UnityEditor](/engine/6000.0/script-reference/unityeditor.md)
* **Assembly:** UnityEditor

```csharp
public static void DrawSymmetricFilledCurve(Rect r, AudioCurveRendering.AudioCurveAndColorEvaluator eval)
```

### Parameters

**** (\[Rect]\(/engine/6000.0/script-reference/unityengine/rect)): Rectangle determining the size of the graph.**** (\[AudioCurveAndColorEvaluator]\(/engine/6000.0/script-reference/unityeditor/audiocurverendering/audiocurveandcolorevaluator)): Normalized x-position in the range \[0; 1] at which the curve should be evaluated. The returned value is expected to be in the range \[0; 1] and a value of 0 corresponds to the vertical center of the rectangle that is drawn into. Values outside of this range will be clamped.