FenceGeotrigger

let fenceGeotrigger = new FenceGeotrigger({
  name: "Example Geotrigger - Notify when I am within 50m of my target areas.",
  enterExitRule: "enter-intersects-and-exit-does-not-intersect",
  feed: {
    filterExpression: {
      title: "Location filter",
      expression: "return $locationupdate.horizontalaccuracy <= 20"
    }
  },
  fenceNotificationRule: "enter",
  feedAccuracyMode: "use-geometry-with-accuracy",
  fenceParameters: {
    bufferDistance: 50,
    fenceSource: {
      layerUrl: "http://sampleserver6.arcgisonline.com/arcgis/rest/services/Recreation/MapServer/0"
    },
  },
  notificationOptions: {
    expressionInfo: {
      "title": "Expression",
      "expression": "'You have entered' + $fencefeature.AREA_NAME"
    }
  }
})

Property Overview

Property Details

declaredClass Stringreadonly inherited

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

enterExitRule String

The rule that determines whether a fence polygon has been entered or exited by the geometry from a feed. The feedAccuracyMode must be set to use-geometry-with-accuracy for this property to have an effect.

Enter exit rule	Description
enter-intersects-and-exit-does-not-intersect	A fence polygon is entered when it intersects a feed geometry and exited when it no longer intersects.
enter-contains-and-exit-does-not-contain	A fence polygon is entered when it contains a feed geometry and exited when it is no longer contained.
enter-contains-and-exit-does-not-intersect	A fence polygon is entered when it contains a feed geometry and exited when it no longer intersects.

Possible Values:"enter-contains-and-exit-does-not-contain"|"enter-contains-and-exit-does-not-intersect"|"enter-intersects-and-exit-does-not-intersect"

Default Value:enter-contains-and-exit-does-not-intersect

feed DeviceLocationFeed

The feed for this Geotrigger.

Default Value:null

feedAccuracyMode String

Indicates how the geotrigger will use accuracy information from a feed.

Feed accuracy mode	Description
use-geometry	The reported geometry from a feed will be used.
use-geometry-with-accuracy	The feed geometry will be used in conjunction with accuracy information.

Possible Values:"use-geometry"|"use-geometry-with-accuracy"

Default Value:use-geometry

fenceNotificationRule String

Indicates the type of event that will trigger notifications for the Fence Geotrigger. For example, a value of enter will result in notifications when the geometry of the feed enters a fence polygon.

Possible Values:"enter"|"enter-or-exit"|"exit"

Default Value:null

fenceParameters FeatureFenceParameters

An object defining the fences to use for this Geotrigger.

Default Value:null

name String

The name for this Geotrigger.

Default Value:null

notificationOptions GeotriggerNotificationOptions

Options that control the notification information sent to a client app when a Geotrigger condition is met.

Default Value:null

type Stringreadonly

String indicating the Geotrigger condition type.

For FenceGeotrigger the type is always "fence".

Method Overview

Method Details

addHandles(handleOrHandles, groupKey)inherited

Since: ArcGIS API for JavaScript 4.25

Adds one or more handles which are to be tied to the lifecycle of the object. The handles will be removed when the object is destroyed.

// Manually manage handles
const handle = reactiveUtils.when(
  () => !view.updating,
  () => {
    wkidSelect.disabled = false;
  },
  { once: true }
);

// Handle gets removed when the object is destroyed.
this.addHandles(handle);

Parameters

handleOrHandles WatchHandle|WatchHandle[] Handles marked for removal once the object is destroyed.

groupKey * optional Key identifying the group to which the handles should be added. All the handles in the group can later be removed with Accessor.removeHandles(). If no key is provided the handles are added to a default group.

hasHandles(groupKey){Boolean}inherited

Since: ArcGIS API for JavaScript 4.25

Returns true if a named group of handles exist.

Parameter

groupKey * optional A group key.

Returns

Type	Description
Boolean	Returns true if a named group of handles exist.

Example

// Remove a named group of handles if they exist.
if (obj.hasHandles("watch-view-updates")) {
  obj.removeHandles("watch-view-updates");
}

removeHandles(groupKey)inherited

Since: ArcGIS API for JavaScript 4.25

Removes a group of handles owned by the object.

Parameter

groupKey * optional A group key or an array or collection of group keys to remove.

Example

obj.removeHandles(); // removes handles from default group

obj.removeHandles("handle-group");
obj.removeHandles("other-handle-group");