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:
RasterElevationSource dted1ElevSource = new RasterElevationSource(Dted1Files);
await dted1ElevSource.LoadAsync();
dted1ElevSource.Name = "DTED1";
Dted1Surface.ElevationSources.Add(dted1ElevSource);
Dted1Surface.Name = "DTED1 Surface";
await Dted1Surface.LoadAsync();
Scene dted1Scene = new Scene();
dted1Scene.BaseSurface = Dted1Surface;
await dted1Scene.LoadAsync();
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);
var hose = hoselineLayer.Graphics.FirstOrDefault();
hose3d = new Graphic(hose.Geometry);
drapedOverlay.Graphics.Add(hose3d);