PointCloudLayer

require(["esri/layers/PointCloudLayer"], function(PointCloudLayer) { /* code goes here */ });
Class: esri/layers/PointCloudLayer
Inheritance: PointCloudLayer Layer Accessor
Since: ArcGIS API for JavaScript 4.2

The PointCloudLayer is designed for visualizing large collections of points in a SceneView.

Point cloud data is post-processed spatially organized lidar data that consists of large collections of 3D points. Elevations for the ground, buildings, forest canopy, highway overpasses, and anything else captured during the lidar survey make up the point cloud data. This layer type creates fast visualizations of point cloud data in the browser.

pointcloudlayer

The Scene Service is identified by the URL of the ArcGIS Server REST resource:

var pointCloudLayer = new PointCloudLayer({
  url: "https://tiles.arcgis.com/tiles/V6ZHFr6zdgNZuVG0/arcgis/rest/services/BARNEGAT_BAY_LiDAR_UTM/SceneServer"
});

If the point cloud service is requested from a different domain, a CORS enabled server or a proxy is required.

See also:

Constructors

new PointCloudLayer(properties)
Parameter:
properties Object
optional

See the properties for a list of all the properties that may be passed into the constructor.

Example:
// Typical usage
var pointCloudLayer = new PointCloudLayer({
  url: "https://tiles.arcgis.com/tiles/V6ZHFr6zdgNZuVG0/arcgis/rest/services/BARNEGAT_BAY_LiDAR_UTM/SceneServer"
});

Property Overview

Any properties can be set, retrieved or listened to. See the Working with Properties topic.
NameTypeSummaryClass
String

The copyright text as defined by the scene service.

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String

The name of the class.

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Object

Specifies how points are placed on the vertical axis (z).

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Field[]

An array of fields accessible in the layer.

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FieldsIndex

A convenient property that can be used to make case-insensitive lookups for a field by name.

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Array<(PointCloudValueFilter|PointCloudReturnFilter)>

An array of pointCloudFilters used to filter points.

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more detailsPointCloudLayer
Extent

The full extent of the layer.

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String

The unique ID assigned to the layer.

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Number

The layer ID, or layer index, of a Scene Service layer.

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Boolean

Indicates whether the layer will be included in the legend.

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String

Indicates how the layer should display in the LayerList widget.

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Boolean

Indicates whether the layer's resources have loaded.

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Error

The Error object returned if an error occurred while loading.

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String

Represents the status of a load operation.

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Object[]

A list of warnings which occurred while loading.

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Number

The maximum scale (most zoomed in) at which the layer is visible in the view.

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Number

The minimum scale (most zoomed out) at which the layer is visible in the view.

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String[]

An array of field names from the service to include with each feature.

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Boolean

Indicates whether to display popups when points in the layer are clicked.

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PopupTemplate

The popup template for the layer.

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PortalItem

The portal item from which the layer is loaded.

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PointCloudRenderer

The renderer assigned to the layer.

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SpatialReference

The spatial reference of the layer.

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String

The title of the layer used to identify it in places such as the Legend and LayerList widgets.

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StringFor PointCloudLayer the type is always "point-cloud". more detailsmore detailsPointCloudLayer
String

The URL of the REST endpoint of the layer or scene service.

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Object

The version of the scene service specification used for this service.

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Boolean

Indicates if the layer is visible in the View.

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Property Details

The copyright text as defined by the scene service.

declaredClass Stringreadonly inherited
Since: ArcGIS API for JavaScript 4.7

The name of the class. The declared class name is formatted as esri.folder.className.

elevationInfo Object
Since: ArcGIS API for JavaScript 4.4

Specifies how points are placed on the vertical axis (z). This property only affects PointCloudLayers when using the absolute-height mode.

Properties:
mode String

Defines how the points are placed on the vertical axis (z). Currently only absolute-height mode is supported.

ModeDescription
absolute-heightPoints are placed at an absolute elevation (z-value) above sea level. This z-value is determined by summing up the offset value and the point's z-value. It doesn't take the elevation of the terrain into account. This is the only supported elevation mode for a PointCloudLayer.
offset Number
optional
Default Value:0

An elevation offset, which is added to the vertical position of each point.

unit String
optional
Default Value:meters

The unit for offset values.

fields Field[]

An array of fields accessible in the layer. The most common fields for PointCloudLayers are described more in detail in the following table:

NameComment
ELEVATIONCheck the LAS Specification for details.
INTENSITYCheck the LAS Specification for details.
CLASS_CODEGet the list with the class label with PointCloudLayer.queryCachedStatistics.
RGBThe individual RGB channels (uint8) are packed into a single uint32 value. See example for decode.
RETURNSBits 0-5 for Return Number and Number of Returns. See example for decode.
FLAGSCheck the LAS Specification for details.
Example:
// decode the rgb value with Arcade:
var rgb = $feature.RGB;
var red = Floor(rgb/65536,0);
var green = Floor((rgb-(red*65536))/256,0);
var blue = rgb-(red*65536)-(green*256);
return "rgb(" + red + "," + green + "," + blue + ")";

// decode the returns value with Arcade:
var returnnumber = $feature.RETURNS % 16;
var numberofreturns = Floor($feature.RETURNS / 16)
return returnnumber + " / " + numberofreturns;
fieldsIndex FieldsIndexreadonly
Since: ArcGIS API for JavaScript 4.13

A convenient property that can be used to make case-insensitive lookups for a field by name. It can also provide a list of the date fields in a layer.

Example:
// lookup a field by name. name is case-insensitive
const field = layer.fieldsIndex.get("SoMeFiEld");

if (field) {
  console.log(field.name); // SomeField
}
Since: ArcGIS API for JavaScript 4.10

An array of pointCloudFilters used to filter points. Only the points that satisfy all the filters are displayed in the view. There are two types of filters that can be set: PointCloudValueFilter filters points based on classification values and PointCloudReturnFilter filters points based on return values.

Example:
// filter out points that don't belong to ground or building
const pcLayer = new PointCloudLayer({
  ...,
  filters: [{
    type: "value",
    field: "CLASS_CODE",
    mode: "include",
    // values include ground(2) and building(6)
    values: [2, 6]
  }]
});

The full extent of the layer. By default, this is worldwide. This property may be used to set the extent of the view to match a layer's extent so that its features appear to fill the view. See the sample snippet below.

Example:
// Once the layer loads, set the view's extent to the layer's fullextent
layer.when(function(){
  view.extent = layer.fullExtent;
});

The unique ID assigned to the layer. If not set by the developer, it is automatically generated when the layer is loaded.

layerId Number

The layer ID, or layer index, of a Scene Service layer. This is particularly useful when loading a single layer with the portalItem property from a service containing multiple layers. You can specify this value in one of two scenarios:

  • When loading the layer via the portalItem property.
  • When pointing the layer url directly to the Scene Service.

If a layerId is not specified in either of the above scenarios, then the first layer in the service (layerId = 0) is selected.

Examples:
// while these examples use a SceneLayer, the same pattern can be
// used for other layers that may be loaded from portalItem ids

// loads the third layer in the given Portal Item
var layer = new SceneLayer({
  portalItem: {
    id: "73df987984b24094b848d580eb83b0fb"
  },
  layerId: 2
});
// If not specified, the first layer (layerId: 0) will be returned
var layer = new SceneLayer({
  portalItem: {
    id: "73df987984b24094b848d580eb83b0fb"
  }
});
// Can also be used if URL points to service and not layer
var layer = new SceneLayer({
  url: "https://scenesampleserverdev.arcgis.com/arcgis/rest/services/Hosted/DevA_Trees/SceneServer",
  layerId: 0  // Notice that the url doesn't end with /2
});
// This code returns the same layer as the previous snippet
var layer = new SceneLayer({
  url: "https://scenesampleserverdev.arcgis.com/arcgis/rest/services/Hosted/DevA_Trees/SceneServer/0",
  // The layer id is specified in the URL
});
legendEnabled Boolean
Since: ArcGIS API for JavaScript 4.5

Indicates whether the layer will be included in the legend.

Default Value:true
listMode String inherited

Indicates how the layer should display in the LayerList widget. The possible values are listed below.

ValueDescription
showThe layer is visible in the table of contents.
hideThe layer is hidden in the table of contents.
hide-childrenIf the layer is a GroupLayer, BuildingSceneLayer, KMLLayer, MapImageLayer, TileLayer or WMSLayer, hide the children layers from the table of contents.

Possible Values:"show"|"hide"|"hide-children"

Default Value:show
loaded Booleanreadonly inherited

Indicates whether the layer's resources have loaded. When true, all the properties of the object can be accessed.

Default Value:false
loadError Errorreadonly inherited

The Error object returned if an error occurred while loading.

Default Value:null
loadStatus Stringreadonly inherited

Represents the status of a load operation.

ValueDescription
not-loadedThe object's resources have not loaded.
loadingThe object's resources are currently loading.
loadedThe object's resources have loaded without errors.
failedThe object's resources failed to load. See loadError for more details.

Possible Values:"not-loaded"|"loading"|"failed"|"loaded"

Default Value:not-loaded
loadWarnings Object[]readonly inherited

A list of warnings which occurred while loading.

maxScale Number

The maximum scale (most zoomed in) at which the layer is visible in the view. If the map is zoomed in beyond this scale, the layer will not be visible. A value of 0 means the layer does not have a maximum scale. The maxScale value should always be smaller than the minScale value, and greater than or equal to the service specification.

Default Value:0
Examples:
// The layer will not be visible when the view is zoomed in beyond a scale of 1:1,000
layer.maxScale = 1000;
// The layer's visibility is not restricted to a maximum scale.
layer.maxScale = 0;
minScale Number

The minimum scale (most zoomed out) at which the layer is visible in the view. If the map is zoomed out beyond this scale, the layer will not be visible. A value of 0 means the layer does not have a minimum scale. The minScale value should always be larger than the maxScale value, and lesser than or equal to the service specification.

Default Value:0
Examples:
// The layer will not be visible when the view is zoomed out beyond a scale of 1:3,000,000
layer.minScale = 3000000;
// The layer's visibility is not restricted to a minimum scale.
layer.minScale = 0;
outFields String[]

An array of field names from the service to include with each feature. To fetch the values from all fields in the layer, use ["*"]. Fields specified in outFields will be requested alongside with required fields for rendering and filtering. The required fields and outFields are used to populate PointCloudLayerView.availableFields.

Default Value:null
See also:
Examples:
// Includes all fields from the service in the layer
pcl.outFields = ["*"];
// Get the specified fields from the service in the layer
// These fields will be added to FeatureLayerView.availableFields
// along with rendering and labeling fields. Use these fields
// for client-side filtering and querying.
pcl.outFields = ["ELEVATION", "RGB", "CLASS_CODE];
popupEnabled Boolean
Since: ArcGIS API for JavaScript 4.13

Indicates whether to display popups when points in the layer are clicked. The layer needs to have a popupTemplate to define what information should be displayed in the popup. Alternatively, a default popup template may be automatically used if Popup.defaultPopupTemplateEnabled is set to true.

Default Value:true
See also:
popupTemplate PopupTemplateautocast
Since: ArcGIS API for JavaScript 4.13

The popup template for the layer. When set on the layer, the popupTemplate allows users to access attributes and display their values in the view's popup when a feature is selected using text and/or charts. See the PointCloudLayer.fields for the most common attributes information. See the PopupTemplate sample for an example of how PopupTemplate interacts with a FeatureLayer. Setting a PopupTemplate on this layer type is done in the same way as a FeatureLayer.

A default popup template is automatically used if no popupTemplate has been defined when Popup.defaultPopupTemplateEnabled is set to true.

See also:
portalItem PortalItem

The portal item from which the layer is loaded. If the portal item references a Feature Service or Scene Service, then you can specify a single layer to load with the layerId property.

Examples:
// while this example uses FeatureLayer, this same pattern can be
// used for other layers that may be loaded from portalItem ids
var lyr = new FeatureLayer({
  portalItem: {  // autocasts as new PortalItem()
    id: "caa9bd9da1f4487cb4989824053bb847"
  }  // the first layer in the service is returned
});
// set hostname when using an on-premise portal (default is ArcGIS Online)
// esriConfig.portalUrl = "http://myHostName.esri.com/arcgis";

// while this example uses FeatureLayer, this same pattern can be
// used for SceneLayers
var lyr = new FeatureLayer({
  portalItem: {  // autocasts as new PortalItem()
    id: "8d26f04f31f642b6828b7023b84c2188"
  },
  // loads the third item in the given feature service
  layerId: 2
});

The renderer assigned to the layer. The renderer defines how to visualize each point in the layer.

Example:
// all points in the layer will be colorized with the RGB attribute
layer.renderer = {
  type: "point-cloud-rgb",  // autocasts as new PointCloudRGBRenderer()
  field: "RGB"
};
spatialReference SpatialReferenceautocast

The spatial reference of the layer.

title String

The title of the layer used to identify it in places such as the Legend and LayerList widgets.

When loading a layer by service url, the title is derived from the service name. If the service has several layers, then the title of each layer will be the concatenation of the service name and the layer name. When the layer is loaded from a portal item, the title of the portal item will be used instead. Finally, if a layer is loaded as part of a webmap or a webscene, then the title of the layer as stored in the webmap/webscene will be used.

type Stringreadonly

For PointCloudLayer the type is always "point-cloud".

url String

The URL of the REST endpoint of the layer or scene service. The URL may either point to a resource on ArcGIS Enterprise or ArcGIS Online.

The layer may be specified using the layerId property when the url points directly to a service and not a specific layer. If layerId is not specified, then it will default to the first layer in the service.

Examples:
// Layer from Scene Service on ArcGIS Server
var sceneLayer = new SceneLayer({
  url: "http://scene.arcgis.com/arcgis/rest/services/Hosted/Building_Hamburg/SceneServer/layers/0"
});
// Can also be used if URL points to service and not layer
var layer = new SceneLayer({
  // Notice that the url doesn't end with /0
  url: "https://scenesampleserverdev.arcgis.com/arcgis/rest/services/Hosted/DevA_Trees/SceneServer",
  layerId: 0
});
version Objectreadonly

The version of the scene service specification used for this service.

Properties:
major Number

The major version of the scene layer.

minor Number

The minor version of the scene layer.

versionString String

The complete version string of the scene layer.

See also:
Example:
// Prints the version to the console - e.g. 1.4, 1.5, etc.
console.log(layer.version.versionString);

Indicates if the layer is visible in the View. When false, the layer may still be added to a Map instance that is referenced in a view, but its features will not be visible in the view.

Default Value:true
Example:
// The layer is no longer visible in the view
layer.visible = false;

Method Overview

NameReturn TypeSummaryClass

Cancels a load() operation if it is already in progress.

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more detailsLayer
Promise<LayerView>

Called by the views, such as MapView and SceneView, when the layer is added to the Map.layers collection and a layer view must be created for it.

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PopupTemplate

Creates a default popup template for the layer, populated with all the fields of the layer.

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Boolean

Emits an event on the instance.

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Promise<Object>

Fetches custom attribution data for the layer when it becomes available.

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Domain

Returns the Domain associated with the given field name.

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Boolean

Indicates whether there is an event listener on the instance that matches the provided event name.

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Boolean

isFulfilled() may be used to verify if creating an instance of the class is fulfilled (either resolved or rejected).

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Boolean

isRejected() may be used to verify if creating an instance of the class is rejected.

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Boolean

isResolved() may be used to verify if creating an instance of the class is resolved.

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Promise

Loads the resources referenced by this class.

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Object

Registers an event handler on the instance.

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Object

Queries cached statistics from the service for a given field.

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Promise

when() may be leveraged once an instance of the class is created.

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Method Details

cancelLoad()inherited

Cancels a load() operation if it is already in progress.

createLayerView(view, options){Promise<LayerView>}inherited

Called by the views, such as MapView and SceneView, when the layer is added to the Map.layers collection and a layer view must be created for it. This method is used internally and there is no use case for invoking it directly.

Parameters:
view *

The parent view.

options Object
optional

An object specifying additional options. See the object specification table below for the required properties of this object.

Specification:
optional

A signal to abort the creation of the layerview.

Returns:
TypeDescription
Promise<LayerView>Resolves with a LayerView instance.
See also:
createPopupTemplate(options){PopupTemplate}
Since: ArcGIS API for JavaScript 4.13

Creates a default popup template for the layer, populated with all the fields of the layer. The field CLASS_CODE is decoded with the category name. The field RGB describes rgb with decimal-codes. The field RETURNS is decoded with the number of returns out of total like (1/3), which shows number 1 out of 3.

Parameters:
Specification:
options Object
optional

Options for creating the popup template.

Specification:
maximumFields Number
optional
Default Value: 75

The maximum number of fields to include in the popup template.

ignoreFieldTypes String[]
optional

Field types to ignore when creating the popup. By default the geometry, blob, raster, guid and xml field types are ignored.

Returns:
TypeDescription
PopupTemplateThe popup template, or null if the layer does not have any fields.
emit(type, event){Boolean}inherited
Since: ArcGIS API for JavaScript 4.5

Emits an event on the instance. This method should only be used when creating subclasses of this class.

Parameters:
type String

The name of the event.

event Object
optional

The event payload.

Returns:
TypeDescription
Booleantrue if a listener was notified
fetchAttributionData(){Promise<Object>}inherited

Fetches custom attribution data for the layer when it becomes available.

Returns:
TypeDescription
Promise<Object>Resolves to an object containing custom attribution data for the layer.
getFieldDomain(fieldName){Domain}
Since: ArcGIS API for JavaScript 4.13

Returns the Domain associated with the given field name. The domain can be either a CodedValueDomain or RangeDomain.

Parameter:
fieldName String

Name of the field.

Returns:
TypeDescription
DomainThe Domain object associated with the given field name for the given feature.
hasEventListener(type){Boolean}inherited

Indicates whether there is an event listener on the instance that matches the provided event name.

Parameter:
type String

The name of the event.

Returns:
TypeDescription
BooleanReturns true if the class supports the input event.
isFulfilled(){Boolean}inherited

isFulfilled() may be used to verify if creating an instance of the class is fulfilled (either resolved or rejected). If it is fulfilled, true will be returned.

Returns:
TypeDescription
BooleanIndicates whether creating an instance of the class has been fulfilled (either resolved or rejected).
isRejected(){Boolean}inherited

isRejected() may be used to verify if creating an instance of the class is rejected. If it is rejected, true will be returned.

Returns:
TypeDescription
BooleanIndicates whether creating an instance of the class has been rejected.
isResolved(){Boolean}inherited

isResolved() may be used to verify if creating an instance of the class is resolved. If it is resolved, true will be returned.

Returns:
TypeDescription
BooleanIndicates whether creating an instance of the class has been resolved.
load(signal){Promise}inherited

Loads the resources referenced by this class. This method automatically executes for a View and all of the resources it references in Map if the view is constructed with a map instance.

This method must be called by the developer when accessing a resource that will not be loaded in a View.

It's possible to provide a signal to stop being interested into a Loadable instance load status. When the signal is aborted, the instance does not stop its loading process, only cancelLoad can abort it.

Parameter:
optional

Signal object that can be used to abort the asynchronous task. The returned promise will be rejected with an Error named AbortError when an abort is signaled. See also AbortController for more information on how to construct a controller that can be used to deliver abort signals.

Returns:
TypeDescription
PromiseResolves when the resources have loaded.
on(type, listener){Object}inherited

Registers an event handler on the instance. Call this method to hook an event with a listener.

Parameters:

A event type, or an array of event types, to listen for.

listener Function

The function to call when the event is fired.

Returns:
TypeDescription
ObjectReturns an event handler with a remove() method that can be called to stop listening for the event(s).
PropertyTypeDescription
removeFunctionWhen called, removes the listener from the event.
Example:
view.on("click", function(event){
  // event is the event handle returned after the event fires.
  console.log(event.mapPoint);
});
queryCachedStatistics(fieldName, options){Object}
Since: ArcGIS API for JavaScript 4.13

Queries cached statistics from the service for a given field. Check for the response details the I3S PointCloud Specification

Parameters:
fieldName String

The name of the field to query statistics for.

options Object
optional

An object with the following properties.

Specification:
optional

Signal object that can be used to abort the asynchronous task. The returned promise will be rejected with an Error named AbortError when an abort is signaled. See also AbortController for more information on how to construct a controller that can be used to deliver abort signals.

Returns:
TypeDescription
ObjectThe statistics document.
Example:
layer.queryCachedStatistics("ELEVATION")
 .then(function(statistics) {
   console.log(statistics);
});
when(callback, errback){Promise}inherited
Since: ArcGIS API for JavaScript 4.6

when() may be leveraged once an instance of the class is created. This method takes two input parameters: a callback function and an errback function. The callback executes when the instance of the class loads. The errback executes if the instance of the class fails to load.

Parameters:
callback Function
optional

The function to call when the promise resolves.

errback Function
optional

The function to execute when the promise fails.

Returns:
TypeDescription
PromiseReturns a new promise for the result of callback that may be used to chain additional functions.
Example:
// Although this example uses MapView, any class instance that is a promise may use then() in the same way
var view = new MapView();
view.when(function(){
  // This function will execute once the promise is resolved
}, function(error){
  // This function will execute if the promise is rejected due to an error
});

Event Overview

NameTypeSummaryClass
{view: View,layerView: LayerView}

Fires after the layer's LayerView is created and rendered in a view.

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more detailsLayer
{view: View,error: Error}

Fires when an error emits during the creation of a LayerView after a layer has been added to the map.

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more detailsLayer
{view: View,layerView: LayerView}

Fires after the layer's LayerView is destroyed and no longer renders in a view.

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Event Details

layerview-createinherited

Fires after the layer's LayerView is created and rendered in a view.

Properties:
view View

The view in which the layerView was created.

layerView LayerView

The LayerView rendered in the view representing the layer in layer.

See also:
Example:
// This function will fire each time a layer view is created for this
// particular view.
layer.on("layerview-create", function(event){
  // The LayerView for the layer that emitted this event
  event.layerView;
});
layerview-create-errorinherited

Fires when an error emits during the creation of a LayerView after a layer has been added to the map.

Properties:
view View

The view that failed to create a layerview for the layer emitting this event.

error Error

An error object describing why the layer view failed to create.

See also:
Example:
// This function fires when an error occurs during the creation of the layer's layerview
layer.on("layerview-create-error", function(event) {
  console.error("LayerView failed to create for layer with the id: ", layer.id, " in this view: ", event.view);
});
layerview-destroyinherited

Fires after the layer's LayerView is destroyed and no longer renders in a view.

Properties:
view View

The view in which the layerView was destroyed.

layerView LayerView

The destroyed LayerView representing the layer.

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