Interface View

The initial center for the view. If a user projection is not set, the coordinate system for the center is specified with the projection option. Layer sources will not be fetched if this is not set, but the center can be set later with #setCenter.

If true, the extent constraint will only apply to the view center and not the whole extent.

If true, the view will always animate to the closest zoom level after an interaction; false means intermediary zoom levels are allowed.

Rotation constraint. false means no constraint. true means no constraint, but snap to zero near zero. A number constrains the rotation to that number of values. For example, 4 will constrain the rotation to 0, 90, 180, and 270 degrees.

Enable rotation. If false, a rotation constraint that always sets the rotation to zero is used. The constrainRotation option has no effect if enableRotation is false.

The extent that constrains the view, in other words, nothing outside of this extent can be visible on the map.

The maximum resolution used to determine the resolution constraint. It is used together with minResolution (or maxZoom) and zoomFactor. If unspecified it is calculated in such a way that the projection's validity extent fits in a 256x256 px tile. If the projection is Spherical Mercator (the default) then maxResolution defaults to 40075016.68557849 / 256 = 156543.03392804097.

The maximum zoom level used to determine the resolution constraint. It is used together with minZoom (or maxResolution) and zoomFactor. Note that if minResolution is also provided, it is given precedence over maxZoom.

The minimum resolution used to determine the resolution constraint. It is used together with maxResolution (or minZoom) and zoomFactor. If unspecified it is calculated assuming 29 zoom levels (with a factor of 2). If the projection is Spherical Mercator (the default) then minResolution defaults to 40075016.68557849 / 256 / Math.pow(2, 28) = 0.0005831682455839253.

The minimum zoom level used to determine the resolution constraint. It is used together with maxZoom (or minResolution) and zoomFactor. Note that if maxResolution is also provided, it is given precedence over minZoom.

If false the view is constrained so only one world is visible, and you cannot pan off the edge. If true the map may show multiple worlds at low zoom levels. Only used if the projection is global. Note that if extent is also provided it is given precedence.

The main projection.

The initial resolution for the view. The units are projection units per pixel (e.g. meters per pixel). An alternative to setting this is to set zoom. Layer sources will not be fetched if neither this nor zoom are defined, but they can be set later with #setZoom or #setResolution.

Resolutions to determine the resolution constraint. If set the maxResolution, minResolution, minZoom, maxZoom, and zoomFactor options are ignored.

The initial rotation for the view in radians (positive rotation clockwise, 0 means North).

Allow the view to be zoomed out to show the full configured extent. By default, when a view is configured with an extent, users will not be able to zoom out so the viewport exceeds the extent in either dimension. This means the full extent may not be visible if the viewport is taller or wider than the aspect ratio of the configured extent. If showFullExtent is true, the user will be able to zoom out so that the viewport exceeds the height or width of the configured extent, but not both, allowing the full extent to be shown.

If true, the extent constraint will be applied smoothly, i.e. allow the view to go slightly outside of the given extent.

If true, the resolution min/max values will be applied smoothly, i. e. allow the view to exceed slightly the given resolution or zoom bounds.

Only used if resolution is not defined. Zoom level used to calculate the initial resolution for the view.

The zoom factor used to compute the corresponding resolution.