OpenLayers| Map | View | Layers |
|---|---|---|
A map is made of layers, a view to visualize them, interactions to modify map content and controls with UI components. OverviewCreation Events |
The view manages the visual parameters of the map view, like resolution or rotation. View with center, projection, resolution and rotation |
Layers are lightweight containers that get their data from sources. layer/Tilelayer/Image layer/Vector layer/VectorTile |
| Controls | Interactions | Sources and formats |
| Map default controls All controls |
Map default interactions Interactions for vector features All interactions |
Tile sources for layer/Tile
Image sources for layer/Image Vector sources for layer/Vector Vector tile sources for layer/VectorTile Formats for reading/writing vector data format/WMSCapabilities |
| Projections | Observable objects | Other components |
All coordinates and extents need to be provided in view projection (default: EPSG:3857). To transform, use proj.transform() and proj.transformExtent(). ol/proj |
Changes to all ol/Objects can be observed by calling the object.on('propertychange') method. Listeners receive an ol/Object~ObjectEvent with information on the changed property and old value. |
ol/Geolocation ol/Overlay |
API change policy
The OpenLayers API consists of
- names and signatures of constructors
- names and signatures of instance methods and properties
- names and signatures of functions
- names of constants
Within a major release series, the API will not be changed. Any changes to the API will be accompanied by a new major release.
Note: The API change policy does not cover CSS class names that are used to style the OpenLayers UI. It also does not cover any typedefs and enums.