UtilityNetworkTrace

AMD: require(["esri/widgets/UtilityNetworkTrace"], (UtilityNetworkTrace) => { /* code goes here */ });
ESM: import UtilityNetworkTrace from "@arcgis/core/widgets/UtilityNetworkTrace";
Class: esri/widgets/UtilityNetworkTrace
Inheritance: UtilityNetworkTrace Widget Accessor
Since: ArcGIS Maps SDK for JavaScript 4.22

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.
  • The Utility Network feature service must be secured since the ArcGIS Utility Network user type extension is required for users who wish to run a trace on the web service.
  • Running traces on map services is not supported.
For information about gaining full control of widget styles, see the Styling topic.
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

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 Hide inherited properties
Name Type Summary Class
String|HTMLElement

The ID or node representing the DOM element containing the widget.

more details
Widget
String

The name of the class.

more details
Accessor
GraphicColor

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

more details
UtilityNetworkTrace
Boolean

When true, the widget is visually withdrawn and cannot be interacted with.

more details
UtilityNetworkTrace
FlagProperty[]

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

more details
UtilityNetworkTrace
String

The Geodatabase version to pass into the trace.

more details
UtilityNetworkTrace
String

The widget's default CSS icon class.

more details
UtilityNetworkTrace
String

The unique ID assigned to the widget when the widget is created.

more details
Widget
InputSetting[]

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

more details
UtilityNetworkTrace
String

The widget's default label.

more details
UtilityNetworkTrace
String[]

A list of global Ids of traces to select on load

more details
UtilityNetworkTrace
Boolean

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

more details
UtilityNetworkTrace
Boolean

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

more details
UtilityNetworkTrace
Boolean

Determines whether to show list of selection attributes

more details
UtilityNetworkTrace
MapView

The view from which the widget will operate.

more details
UtilityNetworkTrace
UtilityNetworkTraceViewModel

The view model for this widget.

more details
UtilityNetworkTrace
Boolean

Indicates whether the widget is visible.

more details
Widget

Property Details

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 cases 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 Stringreadonly inherited

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

defaultGraphicColor GraphicColor
Since: ArcGIS Maps SDK for JavaScript 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 Boolean

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

Default Value:true

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 String

The Geodatabase version to pass into the trace.

Default Value:"sde.DEFAULT"
iconClass String

The widget's default CSS icon class.

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 InputSetting[]
Since: ArcGIS Maps SDK for JavaScript 4.23

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

Default Value:[]
label String

The widget's default label.

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 Boolean

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

Default Value:true
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 Boolean

Determines whether to show list of selection attributes

Default Value:true
view MapView

The view from which the widget will operate.

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 Boolean inherited

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
Name Return Type Summary Class

Adds one or more handles which are to be tied to the lifecycle of the object.

more details
Accessor
Promise<void>

Checks if the requirements to execute a trace are met.

more details
UtilityNetworkTrace
String

A utility method used for building the value for a widget's class property.

more details
Widget

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

more details
UtilityNetworkTrace

Destroys the widget instance.

more details
Widget
Boolean

Emits an event on the instance.

more details
Widget
Boolean

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

more details
Widget
Boolean

Returns true if a named group of handles exist.

more details
Accessor
Boolean

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

more details
Widget
Boolean

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

more details
Widget
Boolean

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

more details
Widget
Object

Registers an event handler on the instance.

more details
Widget

Adds one or more handles which are to be tied to the lifecycle of the widget.

more details
Widget

This method is primarily used by developers when implementing custom widgets.

more details
Widget

Removes a group of handles owned by the object.

more details
Accessor
Object

This method is primarily used by developers when implementing custom widgets.

more details
Widget

Renders widget to the DOM immediately.

more details
Widget

This method is primarily used by developers when implementing custom widgets.

more details
Widget
Promise

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

more details
Widget

Method Details

addHandles(handleOrHandles, groupKey)inherited
Since: ArcGIS Maps SDK 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.

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(classNames){String}inherited

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.
See also
Example
// .tsx syntax showing how to set CSS classes while rendering the widget

render() {
  const dynamicIconClasses = {
    [CSS.myIcon]: this.showIcon,
    [CSS.greyIcon]: !this.showIcon
  };

  return (
    <div class={classes(CSS.root, CSS.mixin, dynamicIconClasses)} />
  );
}
confirmReset()

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

destroy()inherited

Destroys the widget instance.

emit(type, event){Boolean}inherited

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(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
Type Description
Boolean Returns true if the class supports the input event.
hasHandles(groupKey){Boolean}inherited
Since: ArcGIS Maps SDK 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");
}
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
Type Description
Boolean Indicates 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
Type Description
Boolean Indicates 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
Type Description
Boolean Indicates whether creating an instance of the class has been resolved.
on(type, listener){Object}inherited

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

Parameters

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(handleOrHandles)inherited
Since: ArcGIS Maps SDK for JavaScript 4.24

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

This method is primarily used by developers when implementing custom widgets. Executes after widget is ready for rendering.

removeHandles(groupKey)inherited
Since: ArcGIS Maps SDK 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");
render(){Object}inherited

This method is primarily used by developers when implementing custom widgets. It must be implemented by subclasses for rendering.

Returns
Type Description
Object The rendered virtual node.
renderNow()inherited

Renders widget to the DOM immediately.

scheduleRender()inherited

This method is primarily used by developers when implementing custom widgets. Schedules widget rendering. This method is useful for changes affecting the UI.

when(callback, errback){Promise}inherited

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 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.

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

Name Type Summary Class
{type: "starting-point""barrier"}

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

more details
UtilityNetworkTrace
{type: "starting-point","barrier",symbol: SimpleMarkerSymbolPictureMarkerSymbol}

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

more details
UtilityNetworkTrace
{type: "starting-point","barrier",symbol: SimpleMarkerSymbolPictureMarkerSymbol}

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

more details
UtilityNetworkTrace

Event Details

add-flag
Since: ArcGIS Maps SDK for JavaScript 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
Since: ArcGIS Maps SDK for JavaScript 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"

The symbol of the flag point graphic.

add-flag-error
Since: ArcGIS Maps SDK for JavaScript 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"

The symbol of the flag point graphic.

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