Class: Layers

Members

readonly layerQueueArray

Get a list of layers.

Methods

add(layer)

Add a layer to the layer collection.

Name	Type	Description
layer	S3MTilesLayer	The layer to be added.

find(name){S3MTilesLayer}

Search for S3MTilesLayer layer objects based on layer names

Name	Type	Description
name	String	The specified layer name.

Returns:

Type	Description
S3MTilesLayer	Layer object.

findByIndex(index){S3MTilesLayer}

Search for layer objects based on the specified index.

Name	Type	Description
index	Number	The specified layer index.

Returns:

Type	Description
S3MTilesLayer	Layer Object

forEach(callback)

Traverse all S3M layers and execute callback functions

Name	Type	Description
callback		callback

getSelectedLayer(){S3MTilesLayer}

Retrieve the S3M layer currently selected by clicking.

Returns:

Type	Description
S3MTilesLayer	Return the S3MTilesLayer layer object.

lower(layer)

Adjust the layer order downwards to correspond to the set of image layers.

Name	Type	Description
layer	S3MTilesLayer	Layers to be adjusted

lowerToBottom(layer)

Set the current S3M vector surface layer to the bottom layer.

Name	Type	Description
layer	S3MTilesLayer	Currently click on the selected S3M layer.

pickFeatures(winpos, scene){Promise}

Query feature element information.

Name	Type	Description
winpos	Cartesian2	Window coordinates
scene	Scene	Scene objects

Returns:

Type	Description
Promise	Attribute query asynchronous request promise object

raise(layer)

Adjust the layer order upwards to correspond to the set of image layers.

Name	Type	Description
layer	S3MTilesLayer	Layers to be adjusted

raiseToTop(layer)

Set the current S3M vector surface layer to the top level.

Name	Type	Description
layer	S3MTilesLayer	Currently click on the selected S3M layer.

releaseSelection()

Release the selected layer object.

remove(name, destroy){Boolean}

Delete layer objects with specified names from the layer collection.

Name	Type	Default	Description
name	String		The name of the layer to be deleted.
destroy	Boolean	true	optional Specify whether to release resources when deleting, default to true.

Returns:

Type	Description
Boolean	Return true for successful deletion, otherwise return false.

removeAll(destroy)

Delete all layer objects in the layer collection.

Name	Type	Default	Description
destroy	Boolean	true	optional Specify whether to release resources when deleting, default to true.

setSelectedLayer(layer)

Set the currently selected S3M layer.

Name	Type	Description
layer	S3MTilesLayer	Currently click on the selected S3M layer.