This sample shows how to use the measurement widgets in 3D:
The straight distance between two points can be measured using the DirectLineMeasurement3D widget. The widget displays the horizontal, vertical and direct distance.
An area can be measured using the AreaMeasurement3D widget.
The measurement widgets can also be used with all types of layers, including PointCloudLayer or IntegratedMeshLayer.
By default, snapping is enabled to all layers that support snapping (feature layer, graphics layer, GeoJSON layer, WFS layer, CSV layer, 3D object scene layer, and building scene layer). This can be temporarily disabled by holding the CTRL key.
When the widget is active, a horizontal "laser" line is drawn which indicates the height at the current mouse position. This line can help in analyzing the heights of objects relative to each other and the terrain.