How to find elevation profile of a polyline graphic (v100.0,WPF)?

Question

Working with .NET Runtime v100.0 and a WPF desktop application ... I'd like to be able to draw an elevation profile that corresponds to a graphic that I've drawn on a map. Additionally, I'd like to inspect the line to find the elevation at any point along the line. Any help for these two items would be appreciated. Here is what I have so far: // Create a raster elevation source based on all files in dted1Files RasterElevationSource dted1ElevSource = new RasterElevationSource(Dted1Files); await dted1ElevSource.LoadAsync(); dted1ElevSource.Name = "DTED1"; // Create a Surface based on the elevation source Dted1Surface.ElevationSources.Add(dted1ElevSource); Dted1Surface.Name = "DTED1 Surface"; await Dted1Surface.LoadAsync(); // Create a Scene and assign the created surface to its BaseSurface Scene dted1Scene = new Scene(); dted1Scene.BaseSurface = Dted1Surface; await dted1Scene.LoadAsync(); // Create a SceneView and assign created scene to its Scene SceneView1.Scene = dted1Scene;‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ Then I can get elevation at any particular point via: result = await Dted1Surface.GetElevationAsync(point);‍ I tried this, but the Z values are all zero: var drapedOverlay = new GraphicsOverlay(); drapedOverlay.SceneProperties.SurfacePlacement = SurfacePlacement.Draped; SceneView1.GraphicsOverlays.Add(drapedOverlay); // existing polyline on a map layervar var hose = hoselineLayer.Graphics.FirstOrDefault(); hose3d = new Graphic(hose.Geometry); drapedOverlay.Graphics.Add(hose3d);‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

TonyWakim · Answer

For this method, the maxSegmentLength parameter would have the same units as the geometry's spatial reference system

KeithGemeinhart1 · Answer

Heads up that this line has an error: for (int i = 0; i < geom.Parts[0].Points.Count - 1; i++)‍ it should not have the -1: for (int i = 0; i < geom.Parts[0].Points.Count; i++)‍

KeithGemeinhart1 · Answer

Do you know what the units are on the maxSegmentLength parameter for Densify?