MKOverlayMBS.boundingMapRect as MKMapRectMBS

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
method	MapKit	MBS MacFrameworks Plugin	19.0	✅ Yes	❌ No	❌ No	✅ Yes	Desktop & iOS

The projected rectangle that encompasses the overlay.

This property contains the smallest rectangle that completely encompasses the overlay. Implementers of this interface must set this area when implementing their overlay class, and after setting it, you must not change it. The rectangle should be specified using projected coordinates—that is, coordinates obtained by projecting the globe onto a two-dimensional surface.

Part of the MKOverlayMBS interface.

MKOverlayMBS.canReplaceMapContent as Boolean

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
method	MapKit	MBS MacFrameworks Plugin	19.0	✅ Yes	❌ No	❌ No	✅ Yes	Desktop & iOS

Returns a Boolean indicating whether the overlay content replaces the underlying map content.

true if the map view can skip the loading and drawing of the underlying map tiles or false if the map tiles should still be drawn.

The map view uses the return value of this method as a hint to determine whether it should load and render its tiles. If your overlay covers its designated region entirely with opaque content, and effectively replaces the content of underlying map tiles, implement this method and return true. Doing so alleviates the need for the map to render its tiles.
If you do not implement this method, or if you return false from it, the map view continues to load and render its tiles.

Part of MKOverlayMBS interface.

MKOverlayMBS.coordinate as CLLocationCoordinate2DMBS

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
method	MapKit	MBS MacFrameworks Plugin	19.0	✅ Yes	❌ No	❌ No	✅ Yes	Desktop & iOS

The coordinate of the annotation.

Part of the MKAnnotationMBS interface.

MKOverlayMBS.intersectsMapRect(mapRect as MKMapRectMBS) as Boolean

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
method	MapKit	MBS MacFrameworks Plugin	19.0	✅ Yes	❌ No	❌ No	✅ Yes	Desktop & iOS

Whether this overlay intersects with the given map rectangle.

Part of the MKOverlayMBS interface.

MKOverlayMBS.setCoordinate(newCoordinate as CLLocationCoordinate2DMBS)

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
method	MapKit	MBS MacFrameworks Plugin	19.0	✅ Yes	❌ No	❌ No	✅ Yes	Desktop & iOS

Set the coordinate of the annotation.

Part of the MKAnnotationMBS interface.

MKOverlayMBS.subtitle as String

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
method	MapKit	MBS MacFrameworks Plugin	19.0	✅ Yes	❌ No	❌ No	✅ Yes	Desktop & iOS

The subtitle of the item.

Part of the MKOverlayMBS interface.

MKOverlayMBS.title as String

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
method	MapKit	MBS MacFrameworks Plugin	19.0	✅ Yes	❌ No	❌ No	✅ Yes	Desktop & iOS

The title of the annotation.

Part of the MKAnnotationMBS interface.