---
title: "calculateArea(useOrientedArea:)"
framework: vision
role: symbol
role_heading: Instance Method
path: "vision/contoursobservation/contour/calculatearea(useorientedarea:)"
---

# calculateArea(useOrientedArea:)

## Declaration

```swift
func calculateArea(useOrientedArea: Bool = false) -> Double
```

## See Also

### Calculating area and perimeter

- [calculatePerimeter()](vision/contoursobservation/contour/calculateperimeter().md)