CoordinateConversionViewModel | API Reference | ArcGIS Maps SDK for JavaScript 4.30

Provides the logic for the CoordinateConversion widget.

See also

Constructors

CoordinateConversionViewModel Constructor new CoordinateConversionViewModel(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.

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Type	Summary	Class
Collection<Conversion>	A Collection containing every Conversion that the widget is currently displaying.	CoordinateConversionViewModel
Point	Describes the location of the coordinates currently displayed by the widget as a Point.	CoordinateConversionViewModel
String	The name of the class.	Accessor
Collection<Format>	A Collection containing every Format that the widget is capable of displaying.	CoordinateConversionViewModel
GoToOverride	This function provides the ability to override either the MapView goTo() or SceneView goTo() methods.	CoordinateConversionViewModel
SimpleMarkerSymbol\|PictureMarkerSymbol	This symbol is used to visualize the location currently described by the widget when `capture` mode is active.	CoordinateConversionViewModel
String	Describes the current mode of the widget.	CoordinateConversionViewModel
String	The view model's state.	CoordinateConversionViewModel
Boolean	If this property is set to `true`, sessionStorage or localStorage (depending on storageType) will be used to hydrate and persist the CoordinateConversion widget's state.	CoordinateConversionViewModel
String	This property determines whether sessionStorage or localStorage will be used to store widget state.	CoordinateConversionViewModel
MapView\|SceneView	A reference to the MapView or SceneView.	CoordinateConversionViewModel

Property Details

conversions Property conversions Collection<Conversion>

A Collection containing every Conversion that the widget is currently displaying.

Example

// conversions can be set with an array of strings where each string is a format's name
coordinateConversion.conversions = ["mgrs"];

currentLocation Property currentLocation Point

Describes the location of the coordinates currently displayed by the widget as a Point. Setting this property will update all conversions.

declaredClass Inherited Property declaredClass Stringreadonly Inherited from Accessor

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

formats Property formats Collection<Format>

A Collection containing every Format that the widget is capable of displaying.

The default formats are basemap, dd, ddm, dms, mgrs, usng, utm, and xy.

goToOverride Property goToOverride GoToOverride Since: ArcGIS Maps SDK for JavaScript 4.8 CoordinateConversionViewModel since 4.7, goToOverride added at 4.8.

This function provides the ability to override either the MapView goTo() or SceneView goTo() methods.

See also

Example

// The following snippet uses the Search widget but can be applied to any
// widgets that support the goToOverride property.
search.goToOverride = function(view, goToParams) {
  goToParams.options = {
    duration: updatedDuration
  };
  return view.goTo(goToParams.target, goToParams.options);
};

locationSymbol Property locationSymbol SimpleMarkerSymbol |PictureMarkerSymbol

This symbol is used to visualize the location currently described by the widget when capture mode is active.

mode Property mode String

Describes the current mode of the widget.

While in live mode, the widget will update as the cursor moves.
While in capture mode, the widget will update on mouse click and display a graphic marking the current location.

Possible Values:"live" |"capture"

Default Value:live

state Property state Stringreadonly

The view model's state.

Possible Values:"ready" |"loading" |"disabled"

Default Value:disabled

storageEnabled Property storageEnabled Boolean Since: ArcGIS Maps SDK for JavaScript 4.20 CoordinateConversionViewModel since 4.7, storageEnabled added at 4.20.

If this property is set to true, sessionStorage or localStorage (depending on storageType) will be used to hydrate and persist the CoordinateConversion widget's state.

Default Value:true

storageType Property storageType String Since: ArcGIS Maps SDK for JavaScript 4.23 CoordinateConversionViewModel since 4.7, storageType added at 4.23.

This property determines whether sessionStorage or localStorage will be used to store widget state.

Possible Values:"session" |"local"

Default Value:"session"

See also

view Property view MapView |SceneView

A reference to the MapView or SceneView. Set this to link the widget to a specific view.

Method Overview

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Return Type	Summary	Class
	Adds one or more handles which are to be tied to the lifecycle of the object.	Accessor
Promise<Position>	Attempt to convert a point into a Position.	CoordinateConversionViewModel
Boolean	Returns true if a named group of handles exist.	Accessor
	Removes a group of handles owned by the object.	Accessor
Promise<Point>	Attempt to convert a string into a Point.	CoordinateConversionViewModel
Promise<Conversion []>	Update the input conversions based on the input point.	CoordinateConversionViewModel

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.

convert Method convert(point, format){Promise<Position>}

Attempt to convert a point into a Position.

Parameters

point Point

The point to convert.

format Format

The format that describes how the point should be converted.

Returns

Type	Description
Promise<Position>	When resolved, returns a Position.

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");
}

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");

reverseConvert Method reverseConvert(coordinate, format){Promise<Point>}

Attempt to convert a string into a Point. The format of the string must be specified. A Collection of available formats can be obtained from the formats property.

Parameters

coordinate String

The coordinate string.

format Format

Specifies the format of the input coordinate.

Returns

Type	Description
Promise<Point>	When resolved, returns a Point.

updateConversions Method updateConversions(conversions, location){Promise<Conversion[]>}

Update the input conversions based on the input point.

Parameters

conversions Conversion []

An array of Conversions to be updated.

location Point

A point that will be used to update each input conversion.

Returns

Type	Description
Promise<Conversion []>	When resolved, returns an array of Conversions with updated Positions.

Type Definitions

Position Type Definition Position

Describes a point in terms of a location, a Point, and a coordinate, a string.

Properties: location Point

A point geometry representing the location described by the conversion.

coordinate String

A string representing the location.