---
title: startAngle
framework: roomplan
role: symbol
role_heading: Instance Property
path: roomplan/capturedroom/surface/curve-swift.struct/startangle
---

# startAngle

An angle that begins the curve.

## Declaration

```swift
var startAngle: Measurement<UnitAngle> { get }
```

## See Also

### Measuring a curve

- [endAngle](roomplan/capturedroom/surface/curve-swift.struct/endangle.md)
- [radius](roomplan/capturedroom/surface/curve-swift.struct/radius.md)