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# CGLineCap

Styles for rendering the endpoint of a stroked line.

```
enum CGLineCap
```

## Overview

A line cap specifies the method used by [`strokePath()`](/documentation/CoreGraphics/CGContext/strokePath()) to draw the endpoint of the line. To change the line cap style in a graphics context, you use the function [`setLineCap(_:)`](/documentation/CoreGraphics/CGContext/setLineCap(_:)).

## Topics

### Constants

[`CGLineCap.butt`](/documentation/CoreGraphics/CGLineCap/butt)

A line with a squared-off end. Core Graphics draws the line to extend only to the exact endpoint of the path. This is the default.

[`CGLineCap.round`](/documentation/CoreGraphics/CGLineCap/round)

A line with a rounded end. Core Graphics draws the line to extend beyond the endpoint of the path. The line ends with a semicircular arc with a radius of 1/2 the line’s width, centered on the endpoint.

[`CGLineCap.square`](/documentation/CoreGraphics/CGLineCap/square)

A line with a squared-off end. Core Graphics extends the line beyond the endpoint of the path for a distance equal to half the line width.


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