GetElevationProfileFromSurfaceAsync(IEnumerable<Polyline>) Method

In This Topic

Gets an elevation profile for the specified polylines. The Z values of the calculated polyline are populated from the Ground Surface Layer.

Syntax

Visual Basic (Declaration)
C#

Public Overloads Function GetElevationProfileFromSurfaceAsync( _
   ByVal polylines As IEnumerable(Of Polyline) _
) As Task(Of ElevationProfileResult)

public Task<ElevationProfileResult> GetElevationProfileFromSurfaceAsync( 
   IEnumerable<Polyline> polylines
)

Parameters

polylines: A set of polylines.

Return Value

An ElevationProfileResult. If successful, this contains the generated polyline.

Exceptions

Exception	Description
System.ArgumentNullException	polylines cannot be null.
System.ArgumentException	This Map does not have a visible Ground Surface Layer.

Remarks

If the surface has no data at a particular input geometry point, then the corresponding output geometry point Z will be set to the value specified in SurfaceZsMissingHandler.DefaultOutputZ.

Example

Get Elevation profile from the default ground surface

{
    // get the elevation profile for a polyline / set of polylines
    Polyline polyline = PolylineBuilderEx.CreatePolyline();
    MapPoint mapPoint = MapPointBuilderEx.CreateMapPoint(34, -118, SpatialReferences.WGS84);
    List<MapPoint> mapPoints = new List<MapPoint> { mapPoint };
    var result = await MapView.Active.Map.GetElevationProfileFromSurfaceAsync([polyline]);
    if (result.Status == SurfaceZsResultStatus.Ok)
    {
        var polylineZ = result.Polyline;

        // process the polylineZ

        // get the elevation profile for a set of points
        result = await MapView.Active.Map.GetElevationProfileFromSurfaceAsync(mapPoints);
        if (result.Status == SurfaceZsResultStatus.Ok)
        {
            polylineZ = result.Polyline;
            // process the polylineZ
        }
    }
}

Requirements

Target Platforms: Windows 11 Home, Pro, Enterprise (64 bit)

ArcGIS Pro version: 3.4 or higher.

Reference

Map Class
Map Members
Overload List

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