Map overlays are all content that overlays or overlays a map, such as annotations, vector graphic elements (such as stitches, polygons, and circles), positioning icons, and more. The overlay has its own geographic coordinates, and as the user drags or zooms the map, the overlay moves with the map.

The SDK provides the following overlays:

• Annotation

  Used to pop up bubbles in the map

• ArrowOverlay

  Used to draw arrows on a map route

• CircleOverlay

  Used to draw a circle on a map

• CustomAnnotation

  Customize pop-up bubbles

• IconOverlay

  Users draw icons on the map, support animations, and support pop-up Annotation

• ModelOverlay

  Used to display 3D models, such as 3D cars

• PolygonOverlay

  Used to draw polygon regions

• PolylineOverlay

  Used to draw polygons and lines

• RouteOverlay

  Drawing layers used to draw directions

• TrackOverlay

  Layer for drawing tracks