ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Desktop.Mapping Namespace / Map Class / GetElevationProfileFromSurfaceAsync Method / GetElevationProfileFromSurfaceAsync(IEnumerable<Polyline>,ElevationSurfaceLayer,SurfaceZsMissingHandler,CancellationToken) Method
A set of polylines.
Identifies the surface to be used. If null is specified, then the default Ground Surface will be used.
provides options to handle missing Zs in the surface
provides a way to cancel the operation
Version

GetElevationProfileFromSurfaceAsync(IEnumerable<Polyline>,ElevationSurfaceLayer,SurfaceZsMissingHandler,CancellationToken) Method
Gets an elevation profile for the specified polylines. All Z values of the calculated polyline are populated from the specified Elevation Surface Layer.
Syntax

Parameters

polylines
A set of polylines.
surfaceLayer
Identifies the surface to be used. If null is specified, then the default Ground Surface will be used.
missingHandler
provides options to handle missing Zs in the surface
cancellationToken
provides a way to cancel the operation

Return Value

An ElevationProfileResult. If successful, this contains the generated polyline.
Exceptions
ExceptionDescription
polylines cannot be null.
This Map does not have the specified surfaceLayer.
This Map does not have a visible Ground Surface Layer.
Remarks
The missingHandler will be used to determine what to do if the surface has no data at a particular input geometry point. The corresponding output geometry point or vertex Z will be set to the value specified in the provided missingHandler.OutputZ property. The missingHandler.OnlyProcessMissingZs parameter can be used to overwrite all Z values or only those that are designated as missing based on a comparison with the InputZ value.
Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3.4 or higher.
See Also