Layer Control

Layer control provides functions to set properties of each layer, such as layer addition, deletion, and color and style.

setLayer

Adds a FATOS style layer to the map's style.

map.setLayer(layer, beforlayerID);

Parameter

Required Parameter	Description	Type
id	A unique identifier that you define.	String
source	The data source for the layer. Reference a source that has already been defined using the source's unique id.	String
type	The type of layer (ex. fill or symbol) A list of layer types is available in the Style Specification	String

Optional Parameter	Description	Type
filter	An expression specifying conditions on source features. Only features that match the filter are displayed.	Array
minzoom	The minimum zoom level for the layer.	number
maxzoom	The maximum zoom level for the layer.	number
layout	Layout properties for the layer. Available layout properties vary by layer.type . A full list of layout properties for each layer type is available in the Style Specification	Object
paint	Paint properties for the layer. Available paint properties vary by layer.type . A full list of paint properties for each layer type is available in the Style Specification	Object
beforlayerID	The ID of an existing layer to insert the new layer before, resulting in the new layer appearing visually beneath the existing layer.	String