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Showing content from https://developers.arcgis.com/javascript/latest/api-reference/esri-widgets-UtilityNetworkTrace.html below:

UtilityNetworkTrace | API Reference | ArcGIS Maps SDK for JavaScript 4.33

ESM: import UtilityNetworkTrace from "@arcgis/core/widgets/UtilityNetworkTrace.js";

CDN: const UtilityNetworkTrace = await $arcgis.import("@arcgis/core/widgets/UtilityNetworkTrace.js");

Class: @arcgis/core/widgets/UtilityNetworkTrace

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.

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

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

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 Point". The right image displays a list of features for the asset type "Single Phase Low Voltage Meter".

Nonspatial data can be included as trace starting points and barriers. Additionally, users can examine nonspatial data within the trace results.

Notes

The UtilityNetworkTrace widget class is unable to support proxied feature services or feature services that utilize stored credentials.
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.
Support for adding nonspatial features as trace locations and displaying Utility Network Associations info in the trace result require using a WebMap with popups including UtilityNetworkAssociationsContent.
Updating the map property in the View does not automatically refresh the contents of the UtilityNetworkTrace widget.

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

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 Watch for changes topic.

Show inherited properties Hide inherited properties

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 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: 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" }

: When true, the widget is visually withdrawn and cannot be interacted with.

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.

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

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 Deprecated since version 4.31, gdbVersion will be removed and the gdbVersion of the UtilityNetwork will be consumed directly.

The Geodatabase version to pass into the trace.

Default Value:"sde.DEFAULT"

Since: ArcGIS Maps SDK for JavaScript 4.27 UtilityNetworkTrace since 4.22, icon added at 4.27.: Icon displayed in the widget's button.

id Inherited Property id String: 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.

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.

: The widget's default label.

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
 }
});

selectOnComplete Property selectOnComplete Boolean: When true, the utility network elements are selected in the view when traces are completed.

selectedTraces Property selectedTraces String[]

A list of global Ids of traces to select on load

Example

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

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

showSelectionAttributes Property showSelectionAttributes Boolean: Determines whether to show list of selection attributes

Since: ArcGIS Maps SDK for JavaScript 4.27 UtilityNetworkTrace since 4.22, utilityNetwork added at 4.27.: Determines the utility network to use.

: 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 Inherited Property visible Boolean

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".

Example

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

Method Overview

Show inherited methods Hide inherited methods

Method Details

addHandles Inherited Method addHandles(handleOrHandles, groupKey) 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

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}

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

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(): Destroys the widget instance.

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

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

Parameters

The name of the event.

optional

The event payload.

Returns

Type Description Boolean true if a listener was notified

hasEventListener Inherited Method hasEventListener(type){Boolean}

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

Returns

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

hasHandles Inherited Method hasHandles(groupKey){Boolean} 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}

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}

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}

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}

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

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);
});

postInitialize Inherited Method postInitialize(): Executes after widget is ready for rendering.

removeHandles Inherited Method removeHandles(groupKey) 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}

This method is implemented by subclasses for rendering.

Returns

Type Description Object The rendered virtual node.

renderNow Inherited Method renderNow(): Renders widget to the DOM immediately.

scheduleRender Inherited Method scheduleRender(): Schedules widget rendering. This method is useful for changes affecting the UI.

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

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

optional

The function to call when the promise resolves.

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

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

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

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

optional

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 Event Details

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

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.

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.

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: 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.

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

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