UtilityNetworkTrace | API Reference | ArcGIS Maps SDK for JavaScript 4.30

The UtilityNetworkTrace widget provides a way to run traces in a Utility Network based on connectivity or traversability from set input flags. Input flags (starting points and barriers) can be set by clicking the view. Alternatively, the widget allows setting input flags programmatically on creation, or at runtime, by setting the flags property. The widget can execute one or multiple traces concurrently by selecting them from the trace types dropdown. Trace types can be preset in the widget programmatically on creation, or at runtime, by setting the selectedTraces property. tracetypes_flags

The trace results are returned as a selection or as graphics, or both (if aggregated geometry is set as a Result Type). result_select

The resulting selection of features can be visualized in a list organized by asset groups and asset types if the showSelectionAttributes property is true.

results_panels In the image above, the left image displays a list of trace results filtered by asset group. The center image displays a list of asset types for the asset group "Service Connection". The right image displays a list of features for the asset type "Residential".

Notes

Requires a WebMap published with a Utility Network and shared named trace configurations (Available at Enterprise 10.9).
The network topology must be enabled and the results of a trace are not guaranteed to be accurate if dirty areas are traced. The network topology for the area to be traced must be validated to reflect the most recent edits or updates made to the network.
Running traces on map services is not supported.

See also

Example

// Create a new instance of the UtilityNetworkTrace widget and set
// its required parameters.
const unTraceWidget = new UtilityNetworkTrace({
  view: view
});

view.ui.add(unTraceWidget, "top-right");

Constructors

UtilityNetworkTrace Constructor new UtilityNetworkTrace(properties)

Parameter

properties Object

optional

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

Property Overview

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

Show inherited properties

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Type	Summary	Class
String\|HTMLElement	The ID or node representing the DOM element containing the widget.	Widget
String	The name of the class.	Accessor
GraphicColor	The default color to assign the aggregated geometry of a trace result.	UtilityNetworkTrace
Boolean	When true, the widget is visually withdrawn and cannot be interacted with.	UtilityNetworkTrace
Boolean	When `true`, provides the ability to show the convex hull or buffer.	UtilityNetworkTrace
FlagProperty []	An array of map points to load into the widget to lookup flags.	UtilityNetworkTrace
String	The Geodatabase version to pass into the trace.	UtilityNetworkTrace
String	Icon displayed in the widget's button.	UtilityNetworkTrace
String	The unique ID assigned to the widget when the widget is created.	Widget
InputSetting []	Custom labels, descriptions, and symbol for the input flags.	UtilityNetworkTrace
String	The widget's default label.	UtilityNetworkTrace
ResultAreaPropertiesExtend	The properties to determine the size and color of the result area convex hull or buffer, and determines if it displays on the map when the trace completes.	UtilityNetworkTrace
String []	A list of global Ids of traces to select on load	UtilityNetworkTrace
Boolean	When true, the utility network elements are selected in the view when traces are completed.	UtilityNetworkTrace
Boolean	When true, a graphic layer is added to the view to highlight the utility network elements when traces are completed.	UtilityNetworkTrace
Boolean	Determines whether to show list of selection attributes	UtilityNetworkTrace
UtilityNetwork	Determines the utility network to use.	UtilityNetworkTrace
MapView	The view from which the widget will operate.	UtilityNetworkTrace
UtilityNetworkTraceViewModel	The view model for this widget.	UtilityNetworkTrace
Boolean	Indicates whether the widget is visible.	Widget

Property Details

container Inherited Property container String |HTMLElement Inherited from Widget

The ID or node representing the DOM element containing the widget. This property can only be set once. The following examples are all valid use case when working with widgets.

Examples

// Create the HTML div element programmatically at runtime and set to the widget's container
const basemapGallery = new BasemapGallery({
  view: view,
  container: document.createElement("div")
});

// Add the widget to the top-right corner of the view
view.ui.add(basemapGallery, {
  position: "top-right"
});

// Specify an already-defined HTML div element in the widget's container

const basemapGallery = new BasemapGallery({
  view: view,
  container: basemapGalleryDiv
});

// Add the widget to the top-right corner of the view
view.ui.add(basemapGallery, {
  position: "top-right"
});

// HTML markup
<body>
  <div id="viewDiv"></div>
  <div id="basemapGalleryDiv"></div>
</body>

// Specify the widget while adding to the view's UI
const basemapGallery = new BasemapGallery({
  view: view
});

// Add the widget to the top-right corner of the view
view.ui.add(basemapGallery, {
  position: "top-right"
});

declaredClass Inherited Property declaredClass Stringreadonly Inherited from Accessor

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

defaultGraphicColor Property defaultGraphicColor GraphicColor Since: ArcGIS Maps SDK for JavaScript 4.23 UtilityNetworkTrace since 4.22, defaultGraphicColor added at 4.23.

The default color to assign the aggregated geometry of a trace result.

Default Value:{ color: [255, 255, 0, 0.6], haloOpacity: 0.9, fillOpacity: 0.2, hex: "#FFFF00" }

disabled Property disabled Boolean

When true, the widget is visually withdrawn and cannot be interacted with.

Default Value:true

enableResultArea Property enableResultArea Boolean Since: ArcGIS Maps SDK for JavaScript 4.27 UtilityNetworkTrace since 4.22, enableResultArea added at 4.27.

When true, provides the ability to show the convex hull or buffer.

Default Value:false

flags Property flags FlagProperty[]

An array of map points to load into the widget to lookup flags.

Default Value:[]

Example

const unt = new UtilityNetworkTrace({
 view: view,
 showSelectionAttributes: true,
 selectOnComplete: true,
 showGraphicsOnComplete: true,
 selectedTraces: ["{E8D545B8-596D-4656-BF5E-16C1D7CBEC9B}"],
 flags: [
   {
     type: "starting-point",
     mapPoint: {
       spatialReference: { latestWkid: 3857, wkid: 102100 },
       x: -9814829.166046409,
       y: 5127094.1017433
     }
   },
   {
     type: "barrier",
     mapPoint: {
     spatialReference: { latestWkid: 3857, wkid: 102100 },
       x: -9814828.449441982,
       y: 5127089.085566963
     }
   }
 ]
});

gdbVersion Property gdbVersion String

The Geodatabase version to pass into the trace.

Default Value:"sde.DEFAULT"

icon Property icon String Since: ArcGIS Maps SDK for JavaScript 4.27 UtilityNetworkTrace since 4.22, icon added at 4.27.

Icon displayed in the widget's button.

Default Value:"utility-network-trace"

See also

Calcite Icon Search

id Inherited Property id String Inherited from Widget

The unique ID assigned to the widget when the widget is created. If not set by the developer, it will default to the container ID, or if that is not present then it will be automatically generated.

inputSettings Property inputSettings InputSetting[] Since: ArcGIS Maps SDK for JavaScript 4.23 UtilityNetworkTrace since 4.22, inputSettings added at 4.23.

Custom labels, descriptions, and symbol for the input flags.

Default Value:[]

label Property label String

The widget's default label.

resultAreaProperties Property resultAreaProperties ResultAreaPropertiesExtend Since: ArcGIS Maps SDK for JavaScript 4.27 UtilityNetworkTrace since 4.22, resultAreaProperties added at 4.27.

The properties to determine the size and color of the result area convex hull or buffer, and determines if it displays on the map when the trace completes.

Default Value:{ type: "convexhull", distance: 10, unit: "meters", areaUnit: "square-meters", color: { color: [255, 165, 0, 0.5], haloOpacity: 0.9, fillOpacity: 0.2, hex: "#ffa500" }, show: false }

Example

const unt = new UtilityNetworkTrace({
 un: un,
 view: view,
 enableResultArea: true,
 resultAreaProperties: {
   type: "buffer",
   distance: 10,
   unit: "feet",
   areaUnit: "square-feet",
   color: {
     color: [255, 165, 0, 0.5],
     haloOpacity: 0.9,
     fillOpacity: 0.2,
     hex: "#ffa500"
   },
   show: true
 }
});

selectedTraces Property selectedTraces String[]

A list of global Ids of traces to select on load

Default Value:[]

Example

const unt = new UtilityNetworkTrace({
 view: view,
 selectedTraces: ["{E8D545B8-596D-4656-BF5E-16C1D7CBEC9B}"]
});

selectOnComplete Property selectOnComplete Boolean

When true, the utility network elements are selected in the view when traces are completed.

Default Value:true

showGraphicsOnComplete Property showGraphicsOnComplete Boolean

When true, a graphic layer is added to the view to highlight the utility network elements when traces are completed.

Default Value:true

showSelectionAttributes Property showSelectionAttributes Boolean

Determines whether to show list of selection attributes

Default Value:true

utilityNetwork Property utilityNetwork UtilityNetwork Since: ArcGIS Maps SDK for JavaScript 4.27 UtilityNetworkTrace since 4.22, utilityNetwork added at 4.27.

Determines the utility network to use.

view Property view MapView

The view from which the widget will operate.

viewModel Property viewModel UtilityNetworkTraceViewModelautocast

The view model for this widget. This is a class that contains all the logic (properties and methods) that controls this widget's behavior. See the UtilityNetworkTraceViewModel class to access all properties and methods on the widget.

visible Inherited Property visible Boolean Inherited from Widget

Indicates whether the widget is visible.

If false, the widget will no longer be rendered in the web document. This may affect the layout of other elements or widgets in the document. For example, if this widget is the first of three widgets associated to the upper right hand corner of the view UI, then the other widgets will reposition when this widget is made invisible. For more information, refer to the css display value of "none".

Default Value:true

Example

// Hides the widget in the view
widget.visible = false;

Method Overview

Show inherited methods

Hide inherited methods

Return Type	Summary	Class
	Adds one or more handles which are to be tied to the lifecycle of the object.	Accessor
Promise<void>	Checks if the requirements to execute a trace are met.	UtilityNetworkTrace
String	A utility method used for building the value for a widget's `class` property.	Widget
	Prompts to clear all input flags, selected trace types, and the trace results.	UtilityNetworkTrace
	Destroys the widget instance.	Widget
Boolean	Emits an event on the instance.	Widget
Boolean	Indicates whether there is an event listener on the instance that matches the provided event name.	Widget
Boolean	Returns true if a named group of handles exist.	Accessor
Boolean	`isFulfilled()` may be used to verify if creating an instance of the class is fulfilled (either resolved or rejected).	Widget
Boolean	`isRejected()` may be used to verify if creating an instance of the class is rejected.	Widget
Boolean	`isResolved()` may be used to verify if creating an instance of the class is resolved.	Widget
Object	Registers an event handler on the instance.	Widget
	Adds one or more handles which are to be tied to the lifecycle of the widget.	Widget
	Executes after widget is ready for rendering.	Widget
	Removes a group of handles owned by the object.	Accessor
Object	This method is implemented by subclasses for rendering.	Widget
	Renders widget to the DOM immediately.	Widget
	Schedules widget rendering.	Widget
Promise	`when()` may be leveraged once an instance of the class is created.	Widget

Method Details

addHandles Inherited Method addHandles(handleOrHandles, groupKey) Inherited from Accessor Since: ArcGIS Maps SDK for JavaScript 4.25 Accessor since 4.0, addHandles added at 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 }
);

this.addHandles(handle);

// Destroy the object
this.destroy();

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.

checkCanTrace Method checkCanTrace(){Promise<void>}

Checks if the requirements to execute a trace are met. Returns an error if any of the requirements are not met.

Returns

Type	Description
Promise<void>	When resolved, an error is returned if requirements are not met to execute a trace.

classes Inherited Method classes(classNames){String} Inherited from Widget

A utility method used for building the value for a widget's class property. This aids in simplifying css class setup.

Parameter

classNames String|String []|Object

repeatable

The class names.

Returns

Type	Description
String	The computed class name.

Example

// .tsx syntax showing how to set css classes while rendering the widget

render() {
  const dynamicClasses = {
    [css.flip]: this.flip,
    [css.primary]: this.primary
  };

  return (
    <div class={classes(css.root, css.mixin, dynamicClasses)} />
  );
}

confirmReset Method confirmReset()

Prompts to clear all input flags, selected trace types, and the trace results.

destroy Inherited Method destroy() Inherited from Widget

Destroys the widget instance.

emit Inherited Method emit(type, event){Boolean} Inherited from Widget

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

Type	Description
Boolean	`true` if a listener was notified

hasEventListener Inherited Method hasEventListener(type){Boolean} Inherited from Widget

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

Type	Description
Boolean	Returns true if the class supports the input event.

hasHandles Inherited Method hasHandles(groupKey){Boolean} Inherited from Accessor Since: ArcGIS Maps SDK for JavaScript 4.25 Accessor since 4.0, hasHandles added at 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");
}

isFulfilled Inherited Method isFulfilled(){Boolean} Inherited from Widget

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

Type	Description
Boolean	Indicates whether creating an instance of the class has been fulfilled (either resolved or rejected).

isRejected Inherited Method isRejected(){Boolean} Inherited from Widget

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

Returns

Type	Description
Boolean	Indicates whether creating an instance of the class has been rejected.

isResolved Inherited Method isResolved(){Boolean} Inherited from Widget

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

Returns

Type	Description
Boolean	Indicates whether creating an instance of the class has been resolved.

on Inherited Method on(type, listener){Object} Inherited from Widget

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

Parameters

type String|String []

An event or an array of events to listen for.

listener Function

The function to call when the event fires.

Returns

Type Description

Object

Returns an event handler with a remove() method that should be called to stop listening for the event(s).

Property	Type	Description
remove	Function	When 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);
});

own Inherited Method own(handleOrHandles) Inherited from Widget Since: ArcGIS Maps SDK for JavaScript 4.24 Widget since 4.2, own added at 4.24. Deprecated since 4.28 Use addHandles() instead.

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

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

this.own(handle); // Handle gets removed when the widget is destroyed.

Parameter

handleOrHandles WatchHandle|WatchHandle []

Handles marked for removal once the widget is destroyed.

postInitialize Inherited Method postInitialize() Inherited from Widget

Executes after widget is ready for rendering.

removeHandles Inherited Method removeHandles(groupKey) Inherited from Accessor Since: ArcGIS Maps SDK for JavaScript 4.25 Accessor since 4.0, removeHandles added at 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");

render Inherited Method render(){Object} Inherited from Widget

This method is implemented by subclasses for rendering.

Returns

Type	Description
Object	The rendered virtual node.

renderNow Inherited Method renderNow() Inherited from Widget

Renders widget to the DOM immediately.

scheduleRender Inherited Method scheduleRender() Inherited from Widget

Schedules widget rendering. This method is useful for changes affecting the UI.

when Inherited Method when(callback, errback){Promise} Inherited from Widget

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

Type	Description
Promise	Returns a new Promise for the result of `callback`.

Example

// Although this example uses the BasemapGallery widget, any class instance that is a promise may use when() in the same way
let bmGallery = new BasemapGallery();
bmGallery.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
});

Type Definitions

InputSetting Type Definition InputSetting Object

InputSetting represents the labels, descriptions, and symbols that can be overridden for the flags user interface (UI) in the UtilityNetworkTrace widget.

Properties: type String

The flag type indicates which section will have its settings overridden.

Possible Values:"starting-point"|"barrier"

label String

The label that replaces either the default "Starting points" or "Barriers" headings depending on what flag type is passed.

description String

The description that replaces the default sub-headings for either the starting points or barriers.

symbol SimpleMarkerSymbol|PictureMarkerSymbol

The symbol displayed next to either the "Starting points" or "Barriers" headings.

Example

// Set inputSettings with a SimpleMarkerSymbol
utilityNetworkTrace.inputSettings = [
  {
    type: "starting-point",
    label: "Start locations",
    description: "Add starting locations before running a trace!",
    symbol: {
      type: "simple-marker",
      style: "cross",
      color: "blue",
      size: "8px",
      outline: {
        color: [ 255, 255, 0 ],
        width: 3
      }
    }
  }
]

Event Overview

Type	Summary	Class
{type: "starting-point"\|"barrier"}	Fires when the button to add either a starting point or barrier is clicked.	UtilityNetworkTrace
{type: "starting-point"\|"barrier",symbol: SimpleMarkerSymbol\|PictureMarkerSymbol}	Fires when a flag point graphic is added to the map.	UtilityNetworkTrace
{type: "starting-point"\|"barrier",symbol: SimpleMarkerSymbol\|PictureMarkerSymbol}	Fires when adding a flag point graphic to the map fails.	UtilityNetworkTrace
{graphic: Graphic}	Fires when adding a result area graphic to the map.	UtilityNetworkTrace
{graphic: Graphic}	Fires after a trace when enableResultArea is true.	UtilityNetworkTrace
{graphic: Graphic}	Fires when removing a result area graphic from the map.	UtilityNetworkTrace

Event Details

add-flag Event add-flag Since: ArcGIS Maps SDK for JavaScript 4.23 UtilityNetworkTrace since 4.22, add-flag added at 4.23.

Fires when the button to add either a starting point or barrier is clicked.

Property: type String

The type of flag added.

Possible Values:"starting-point"|"barrier"

add-flag-complete Event add-flag-complete Since: ArcGIS Maps SDK for JavaScript 4.23 UtilityNetworkTrace since 4.22, add-flag-complete added at 4.23.

Fires when a flag point graphic is added to the map.

Properties: type String

The type of flag added.

Possible Values:"starting-point"|"barrier"

symbol SimpleMarkerSymbol|PictureMarkerSymbol

The symbol of the flag point graphic.

add-flag-error Event add-flag-error Since: ArcGIS Maps SDK for JavaScript 4.23 UtilityNetworkTrace since 4.22, add-flag-error added at 4.23.

Fires when adding a flag point graphic to the map fails.

Properties: type String

The type of flag added.

Possible Values:"starting-point"|"barrier"

symbol SimpleMarkerSymbol|PictureMarkerSymbol

The symbol of the flag point graphic.

add-result-area Event add-result-area Since: ArcGIS Maps SDK for JavaScript 4.28 UtilityNetworkTrace since 4.22, add-result-area added at 4.28.

Fires when adding a result area graphic to the map.

Property: graphic Graphic

The graphic of the result area generated from the trace.

create-result-area Event create-result-area Since: ArcGIS Maps SDK for JavaScript 4.29 UtilityNetworkTrace since 4.22, create-result-area added at 4.29.

Fires after a trace when enableResultArea is true.

Property: graphic Graphic

The graphic of the result area generated from the trace if enableResultArea is true.

remove-result-area Event remove-result-area Since: ArcGIS Maps SDK for JavaScript 4.28 UtilityNetworkTrace since 4.22, remove-result-area added at 4.28.

Fires when removing a result area graphic from the map.

Property: graphic Graphic

The removed graphic of the result area generated from the trace.