Interface AddLayerOptionsAboveBelow

Where to insert the new layer.

Default: "top"

• "top": Insert the new layer above all other normal operational layers (note: still below "topmost" layers).
• "bottom": Insert the new layer below all other operational layers.
• "above": Insert the new layer above the specified reference layer.
• "below": Insert the new layer below the specified reference layer.
• "topmost": Insert a new layer that is always displayed on top of all layers that were added at top (e.g. a highlight layer).

The layer that serves as a reference point for insertion.

Can be specified either as a layer object or an id.

The reference must be a top level operational layer in the layer collection. Otherwise an error will be thrown.