Instance Method

Adds an ellipse that fits inside the specified rectangle.

## Parameters

`rect`

A rectangle that defines the area for the ellipse to fit in.

## Discussion

The ellipse is approximated by a sequence of Bézier curves. Its center is the midpoint of the rectangle defined by the `rect` parameter. If the rectangle is square, then the ellipse is circular with a radius equal to one-half the width (or height) of the rectangle. If the `rect` parameter specifies a rectangular shape, then the major and minor axes of the ellipse are defined by the width and height of the rectangle.

The ellipse forms a complete subpath of the path—that is, the ellipse drawing starts with a move-to operation and ends with a close-subpath operation, with all moves oriented in the clockwise direction.

### Constructing a Current Graphics Path

`func beginPath()`

Creates a new empty path in a graphics context.

`func move(to: CGPoint)`

Begins a new subpath at the specified point.

`func addLine(to: CGPoint)`

Appends a straight line segment from the current point to the specified point.

`func addLines(between: [CGPoint])`

Adds a sequence of connected straight-line segments to the current path.

`func addRect(CGRect)`

Adds a rectangular path to the current path.

`func addRects([CGRect])`

Adds a set of rectangular paths to the current path.

`func addArc(center: CGPoint, radius: CGFloat, startAngle: CGFloat, endAngle: CGFloat, clockwise: Bool)`

Adds an arc of a circle to the current path, specified with a radius and angles.

`func addArc(tangent1End: CGPoint, tangent2End: CGPoint, radius: CGFloat)`

Adds an arc of a circle to the current path, specified with a radius and two tangent lines.

`func addCurve(to: CGPoint, control1: CGPoint, control2: CGPoint)`

Adds a cubic Bézier curve to the current path, with the specified end point and control points.

`func addQuadCurve(to: CGPoint, control: CGPoint)`

Adds a quadratic Bézier curve to the current path, with the specified end point and control point.

`func addPath(CGPath)`

Adds a previously created path object to the current path in a graphics context.

`func closePath()`

Closes and terminates the current path’s subpath.

`var path: CGPath?`

Returns a path object built from the current path information in a graphics context.

`func replacePathWithStrokedPath()`

Replaces the path in the graphics context with the stroked version of the path.

Beta Software

This documentation contains preliminary information about an API or technology in development. This information is subject to change, and software implemented according to this documentation should be tested with final operating system software.