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# MapPolyline

An open polygon overlay consisting of one or more connected line segments.

```
struct MapPolyline
```

## Overview

Use this view to create map polylines instances in the closure you provide to the `content` parameter in the [`Map`](/documentation/MapKit/Map) initializers.

## Topics

### Creating a polyline

[`init(_:)`](/documentation/MapKit/MapPolyline/init(_:)-93u7w)

Creates a polyline from polyline you provide.

[`init(_:)`](/documentation/MapKit/MapPolyline/init(_:)-5p2kx)

Creates a polyline that traces the route you provide.

[`init(coordinates:contourStyle:)`](/documentation/MapKit/MapPolyline/init(coordinates:contourStyle:))

Creates a polyline that traces a path between the given coordinates using the specifed contour style.

[`init(points:contourStyle:)`](/documentation/MapKit/MapPolyline/init(points:contourStyle:))

Creates a new polyline that traces a path between the provided points using the specifed contour style.

### Styling the polyline

[`stroke(_:lineWidth:)`](/documentation/MapKit/MapContent/stroke(_:lineWidth:))

Applies the given shape style to drawn map overlays using the line width you specify.

[`stroke(_:style:)`](/documentation/MapKit/MapContent/stroke(_:style:))

Applies the given shape style to drawn map overlays using the stroke style you specify.

[`stroke(lineWidth:)`](/documentation/MapKit/MapContent/stroke(lineWidth:))

Applies the given stoke drawn map overlays using the line width you specify.

[`strokeStyle(style:)`](/documentation/MapKit/MapContent/strokeStyle(style:))

Applies the given stroke style to drawn map overlays.

[`MapPolyline.ContourStyle`](/documentation/MapKit/MapPolyline/ContourStyle)

Values that define how MapKit styles lines to represent the contour of the Earth.

### Setting the overlay level

[`mapOverlayLevel(level:)`](/documentation/MapKit/MapContent/mapOverlayLevel(level:))

Specifies the position of overlays relative to other map content.

### Type aliases

[`Body`](/documentation/MapKit/MapContent/Body-swift.associatedtype)

The content and behavior of the view.


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