Property Overview

Property Details

declaredClass Stringreadonly inherited

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

measurement Objectreadonly

The current measurement of the area.

Properties:

measurementMode String Describes the mode in which the measurement was taken. In euclidean mode, the area and perimeter length are computed from a flat polygon with straight segments on the perimeter in the ECEF coordinate system. In geodesic mode, the area and perimeter length are computed from a geodesic polygon on the WGS84 ellipsoid. Possible Values:"euclidean"|"geodesic"

area MeasurementValue The area of the polygon.

perimeterLength MeasurementValue The perimeter length of the polygon.

state Stringreadonly

The view model's state.

Value	Description
disabled	not ready yet
ready	ready for measuring
measuring	currently measuring
measured	measuring has finished

Possible Values:"disabled"|"ready"|"measuring"|"measured"

Default Value:disabled

unit String

Unit system (imperial, metric) or specific unit used for displaying the area values.

Possible Values:"metric"|"imperial"|"square-inches"|"square-feet"|"square-us-feet"|"square-yards"|"square-miles"|"square-meters"|"square-kilometers"|"acres"|"ares"|"hectares"

unitOptions String[]

List of available units and unit systems (imperial, metric) for displaying the area values.

Possible Values:"metric"|"imperial"|"square-inches"|"square-feet"|"square-us-feet"|"square-yards"|"square-miles"|"square-meters"|"square-kilometers"|"acres"|"ares"|"hectares"

view SceneView

The view from which the widget will operate.

Method Overview

Method Details

clear()

Since: ArcGIS API for JavaScript 4.16

Clears the current measurement.

clearMeasurement()

Since: ArcGIS API for JavaScript 4.10

Deprecated since version 4.16. Use clear instead.

Clears the current measurement.

newMeasurement()

Since: ArcGIS API for JavaScript 4.10

Deprecated since version 4.16. Use start instead.

Starts a new measurement.

Example:

const areaMeasurement3DViewModel = new AreaMeasurement3DViewModel({
  view: view,
  unit: "square-meters"
});

function measure () {
  console.log("AreaMeasurement3DViewModel: ", areaMeasurement3DViewModel);
  areaMeasurement3DViewModel.newMeasurement();
}

measure();

start()

Since: ArcGIS API for JavaScript 4.16

Starts a new measurement.

Example:

const areaMeasurement3DViewModel = new AreaMeasurement3DViewModel({
  view: view,
  unit: "square-meters"
});

await areaMeasurement3DViewModel.start();

Type Definitions

MeasurementValue Object

Measurement value.

Properties:

text String Textual representation of the measured value.

state String State of the measured value. Value Description available measured value is available unavailable measured value is not available due an incomplete measurement invalid measured value is not available due to an invalid measurement configuration (e.g. self-intersecting polygon)