Module: ol/layer/BaseVector




Type Definitions


Name Type Argument Default Description
className string <optional>

A CSS class name to set to the layer element.

opacity number <optional>

Opacity (0, 1).

visible boolean <optional>


extent Extent <optional>

The bounding extent for layer rendering. The layer will not be rendered outside of this extent.

zIndex number <optional>

The z-index for layer rendering. At rendering time, the layers will be ordered, first by Z-index and then by position. When undefined, a zIndex of 0 is assumed for layers that are added to the map's layers collection, or Infinity when the layer's setMap() method was used.

minResolution number <optional>

The minimum resolution (inclusive) at which this layer will be visible.

maxResolution number <optional>

The maximum resolution (exclusive) below which this layer will be visible.

minZoom number <optional>

The minimum view zoom level (exclusive) above which this layer will be visible.

maxZoom number <optional>

The maximum view zoom level (inclusive) at which this layer will be visible.

renderOrder OrderFunction <optional>

Render order. Function to be used when sorting features before rendering. By default features are drawn in the order that they are created. Use null to avoid the sort, but get an undefined draw order.

renderBuffer number <optional>

The buffer in pixels around the viewport extent used by the renderer when getting features from the vector source for the rendering or hit-detection. Recommended value: the size of the largest symbol, line width or label.

source VectorSource | VectorTile <optional>


map Map <optional>

Sets the layer as overlay on a map. The map will not manage this layer in its layers collection, and the layer will be rendered on top. This is useful for temporary layers. The standard way to add a layer to a map and have it managed by the map is to use map.addLayer().

declutter boolean <optional>

Declutter images and text. Decluttering is applied to all image and text styles of all Vector and VectorTile layers that have set this to true. The priority is defined by the z-index of the layer, the zIndex of the style and the render order of features. Higher z-index means higher priority. Within the same z-index, a feature rendered before another has higher priority.

As an optimization decluttered features from layers with the same className are rendered above the fill and stroke styles of all of those layers regardless of z-index. To opt out of this behavior and place declutterd features with their own layer configure the layer with a className other than ol-layer.

style StyleLike | FlatStyleLike | null <optional>

Layer style. When set to null, only features that have their own style will be rendered. See Style for the default style which will be used if this is not set.

background BackgroundColor <optional>

Background color for the layer. If not specified, no background will be rendered.

updateWhileAnimating boolean <optional>

When set to true, feature batches will be recreated during animations. This means that no vectors will be shown clipped, but the setting will have a performance impact for large amounts of vector data. When set to false, batches will be recreated when no animation is active.

updateWhileInteracting boolean <optional>

When set to true, feature batches will be recreated during interactions. See also updateWhileAnimating.

properties Object.<string, *> <optional>

Arbitrary observable properties. Can be accessed with #get() and #set().