ArcGIS Runtime SDK for iOS

Distance measurement analysis

Description

This sample demonstrates measuring 3D distances between two points in a scene.

How it works

The distance measurement analysis allows you to add the same measuring experience found in ArcGIS Pro, City Engine, and the ArcGIS API for JavaScript to your app. You can set the unit system of measurement (metric or imperial) and have the units automatically switch to one appropriate for the current scale. The rendering is handled internally so they do not interfere with other analyses like viewsheds.

To measure distances with the AGSLocationDistanceMeasurement analysis:

  1. Create an AGSAnalysisOverlay and add it to your scene view's analysis overlay collection: sceneView.analysisOverlays.add(analysisOverlay).
  2. Create a AGSLocationDistanceMeasurement, specifying the startLocation and endLocation. These can be the same point to start with. Add the analysis to the analysis overlay: analysisOverlay.analyses.add(locationDistanceMeasurement). The measuring line will be drawn for you between the two points.
  3. The measurementChangedHandler callback will fire if the distances change. You can get the new values for the directDistance, horizontalDistance, and verticalDistance from the parameters provided by the callback. The distance objects contain both the scalar value and unit of measurement.


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