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# sourceRect

The rectangle, in the source view’s coordinate system, that responds to a 3D Touch by a user and remains visually sharp while surrounding content blurs.

```
var sourceRect: CGRect { get set }
```

## Discussion

Use this property if you want to specify a preview indication area that is different than the bounds of the view in the [`sourceView`](/documentation/UIKit/UIViewControllerPreviewing/sourceView) property. Set this property’s value in your object’s [`previewingContext(_:viewControllerForLocation:)`](/documentation/UIKit/UIViewControllerPreviewingDelegate/previewingContext(_:viewControllerForLocation:)) method.

The default value of this property corresponds to the bounds of the view in the [`sourceView`](/documentation/UIKit/UIViewControllerPreviewing/sourceView) property.

For example, if your source view is a table view, you can set the `sourceRect` property to the frame of the row under the user’s touch. The row then remains visually sharp when a user presses it, while surrounding content blurs, thereby indicating to the user that it is the row being touched that has a preview available.

You can change the value of this property at runtime.

## See Also

[`sourceView`](/documentation/UIKit/UIViewControllerPreviewing/sourceView)

A source view, in a previewing view controller’s view hierarchy, responds to a 3D Touch by the user.


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