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How does the measure widget in ArcGIS work?
The Measurement widget provides tools for calculating the current location (Get Location) and measuring distance (Measure Distance) and area (Measure Area). If the map’s coordinate system is not Web Mercator or geographic or if complex polygons are drawn the measure widget will need to use the geometry service to project or simplify geometries.
When do you fire the measurement widget in JavaScript?
The name of the units currently being used by the Measurement widget. If the toolName is distance or area then the values will be a number containing the length of the measurement in the units currently being used by the Measurement widget. Fired when the measurement is complete. (Added at v3.6)
Which is the latest version of the measurement widget?
The Measurement widget, new at version 2.3, provides tools for determining the x,y location and measuring area and distances. This sample shows how to create a new Measurement widget and associate it with the map.
How are distances measured in ArcGIS for JavaScript?
By default the threshold is set to 100km. For 3D SceneViews, the mode in which distances are computed is either euclidean or geodesic . In euclidean mode, the distances are measured as straight lines in the ECEF coordinate system. In geodesic mode, the distances are measured as geodesic lines on the WGS84 ellipsoid.
How are distances measured in the ArcGIS API?
In geodesic mode, the distances are measured as geodesic lines on the WGS84 ellipsoid. For information about gaining full control of widget styles, see the Styling topic.
Do you need geometry service for Measure widget?
If the map’s coordinate system is not Web Mercator or geographic or if complex polygons are drawn the measure widget will need to use the geometry service to project or simplify geometries. Use esri.config.defaults to specify the geometry service for your application.
How does the toolname work in the measurement widget?
The name of the units currently being used by the Measurement widget. As of v3.11. If the toolName is location then the values will be an Array containing the location values, and if the toolName is distance or area then the values will be a number containing the length of the measurement in the units currently being used by the Measurement widget.