| Map | View | Layers | 
|---|---|---|
| A map is made of layers, a view to visualize them, interactions to modify map content and controls with UI components.Overview Creation Events | The view manages the visual parameters of the map view, like resolution or rotation.ol.View with center, projection, resolution and rotation | Layers are lightweight containers that get their data from sources.ol.layer.Tile ol.layer.Image ol.layer.Vector | 
| Controls | Interactions | Sources and formats | 
| Map default controls All controls | Map default interactions Interactions for vector features All interactions | Tile sources for ol.layer.Tile Image sources for ol.layer.Image Vector sources for ol.layer.Vector Formats for reading/writing vector data ol.format.WMSCapabilities | 
| Projections | 2-way bindings | Other components | 
| All coordinates and extents need to be provided in view projection (default: EPSG:3857). To transform, use ol.proj.transform() and ol.proj.transformExtent().ol.proj | Objects can be kept in sync using the bindTo() method. A DOM Input class is available to bind Object properties to HTML Input elements. | ol.DeviceOrientation ol.Geolocation ol.Overlay ol.FeatureOverlay | 
 OpenLayers 3
 OpenLayers 3